\(f(7) = -24\) and \(g(-4) = -126\).
To find the value of f(7), we need to substitute x = 7 in the equation of
\(f(x) = -3x - 3.\)
Therefore, we have;
\(f(7) = -3(7) - 3\)
= -21 - 3
= -24
To find the value of g(-4), we need to substitute x = -4 in the equation of
\(g(x) = 2x³ + 2.\)
Therefore, we have;
\(g(-4) = 2(-4)³ + 2\)
= 2(-64) + 2
= -128 + 2
= -126
Thus,\(f(7) = -24\)
and \(g(-4) = -126\).
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PLEASE HELP!!! Triangle ABC is graphed.
(If your answer includes a fraction, enter in fractional form or round to the nearest tenths place.)
1. Find point D that partitions segment AB in a 1.2 ratio.
D=( , )
2. Find point E that partitions segment AC in a 1:2 ratio.
E= ( , )
3. How does triangle ADE relate to triangle ABC?
Triangle ADE is a dilation of triangle ABC by a scale factor of____
using A as the center.
The coordinates of the point D that partitions the segment in ration 1:2 is D = (4. 3).
What is section formula?The line segment is divided into two pieces by a point, which may or may not be equal. If we know the coordinates of the point, we may calculate the ratio by which the supplied line segment is divided. Also, if we are aware of the ratio that the line segment connecting two places has produced, we may locate the point of division. The two may be accomplished using a section formula from coordinate geometry.
The position of a point that splits a line segment connecting two points into two portions with a length ratio of m:n is found using the section formula.
The coordinates of the point A and B from the given figure is:
A = (1, 3) and B = (10, 3)
The section formula is given as:
(x, y) = (mx2 + nx1 / m+n , my2 + ny1 / m+n)
Substitute the values of m = 1 and n = 2, and the coordinates of the point A and B.
(x, y) = ((1)(10) + (2)(1)/ 3 , (1)(3) + (2)(3) 3)
D(x,y) = (4, 3)
Hence, the coordinates of the point D that partitions the segment in ration 1:2 is D = (4. 3).
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The cytoskeletal structure(s) that are composed of actin and regulate cell shape, cell movement, and muscle contraction include
The cytoskeletal structure composed of actin and involved in regulating cell shape, cell movement, and muscle contraction is called the actin cytoskeleton.
The actin cytoskeleton is a fundamental component of the cytoskeleton, a network of protein filaments within cells that provides structural support and plays essential roles in cellular processes. Actin filaments, also known as microfilaments, are polymers of actin protein subunits and form the main component of the actin cytoskeleton.
The actin cytoskeleton is involved in various cellular functions. It plays a crucial role in determining cell shape by providing structural support and contributing to the maintenance of cell integrity. Actin filaments are also responsible for generating the forces required for cell movement, including crawling, amoeboid movement, and migration of cells during processes such as wound healing.
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what is the equation of the blue line?
The function f(x)=3^x+1 is shown above. Complete each of the following statements by dragging the best choice from the list at the bottom of the page.
This is an exponential growth function so
Our base number is 3.
For statement 2 as explained, it is a growth function.
As far we get in X-axis higher is the value.
For statement 3 the Y interception is (0,2) as sowed below.
For statement 4 The purple line in the graph is a Horizontal asymptote and it has an equation 1.
For statement 5 The domain of the function is all real numbers.
For statement 6 The range of the function is all the real numbers >1. Because we do not include the asymptote.
The formula for distance traveled d is d=rt, where r is the average speed of the object and t is time traveled. If an object travels 30 meters in 20 seconds, what is its speed
Answer:
Step-by-step explanation:
Distance formula:
d = rt
where d = distance, r = average speed and t = time travelled.
They told us that an object travels 30 meters in 20 seconds.
So we can say d = 30 and t = 20
If you put these values back into the distance formula you get:
d = rt
30 = r times 20
30 = 20 r
So now we want to find what "r" (average speed) is.
Divide both sides by 20.
20 r = 30
r = \(\frac{30}{20}\) = 1.5 meters per second.
Line t is tangent to the circle. Find the measure of arc DEF.
Answer: 234 degrees
Step-by-step explanation:
Angle formed by a chord and a tangent has half the measure as the arc formed by the chord
The value of measure of arc DEF is,
⇒ 234 degree
What is mean by Angle?An angle is a combination of two rays (half-lines) with a common endpoint. The latter is known as the vertex of the angle and the rays as the sides, sometimes as the legs and sometimes the arms of the angle.
Given that;
Line t is tangent to the circle.
Hence, We know that;
The angle formed by a chord and a tangent is equal to 1/2 the measure of the intercepted arc.
Thus, The value of measure of arc DEF is,
⇒ 2 x 117 degree
⇒ 234 degree
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Isaiah is a college student who rents an apartment that costs $755 a month. Each month, Isaiah receives $250 from his parents and $225 from a scholarship to help pay for the rent. Isaiah works at Ringling Telemarketing Company, making $10 an hour. Which of the following inequalities can be used to determine the number of hours, x, that Isaiah must work to pay his rent each month?
1.)10x-475≤755
2.)475x+10≥755
3.)10x+475≥755
4.)10x+475≤755
Answer: 3
10x+475≥755
Answer:
the 3rd one
Step-by-step
i think its right, i hope :)
Is this a special product? If yes, what type81a2b4 − c6
Special Product are the result of binomials being multiplied, or simplified further, and can be solved with ease using the First Last Inner Outer method. this product is not a special product.
Special Product (a+b) (a+b) = aa + ab + ab + bb = \(a^{2} + 2ab + b^{2}\).
we can use this formula anytime we are multiplying a binomial of the form a + b.
Factor as a Difference of Squares
factoring: \(81a^{2} b^{4} - c^{6}\) = \((3^{4}a^{2} . b^{4}) - c^{6}\)
A difference of two perfect squares, \(A^{2} - B^{2}\) can be factored into
\((A+B)(A-B)\\A^{2} - AB + BA - B^{2}\\ A^{2} - AB + AB -B^{2}\\ A^{2} -B^{2}\)
AB = BA is he commutative property of multiplication from the expression.
-AB+BA equal zero and is therefore eliminated from the expression.
81 is the square of 9
\(a^{2}\) is the square of \(a^{1}\)
\(b^{4}\) is the square of \(b^{2}\)
\(c^{6}\) is the square of \(c^{3}\)
Factorization is \((9ab^{2}+c^{3}) . (9ab^{2}-c^{3} )\)
Factoring: \((9ab^{2}+c^{3})\)
A sum of perfect cubes, \(a^{3} + b^{3}\) can be factored into :\((a+b).(a^{2}-ab+b^{2})\\a^{3}-a^{2}b+ab^{2}-b^{2}a+b^{3}\\ a^{3}+(a^{2}b-ba^{2})+(ab^{2}-b^{2}a)+b^{3}\\ a^{3}+b^{3}\)
9 is not a cube(Binomial can not be factored as the difference of two perfect cubes)
Factoring: \((9ab^{2}-c^{3} )\)
A difference of two perfect cubes, \(a^{3} - b^{3}\) can be factored into
\((a-b).(a^{2}+ab+b^{2})\\a^{3}+a^{2}b+ab^{2}-ba^{2}-b^{2}a-b^{3}\\ a^{3}+(a^{2}b-ba^{2})+(ab^{2}-b^{2}a)-b^{3}\\ a^{3}-b^{3}\)
9 is not a cube(Binomial can not be factored as the difference of two perfect cubes)
Hence, 81a2b4 - c6 this solution deals with factoring binomials as the sum or difference of cubes.
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The breaking strengths of a random sample of 20 bundles of wool fibers have a sample mean 436.5 and a sample standard deviation 11.9. (a) Construct 90%, 95%, and 99% confidence intervals for the average breaking strength of the wool fibers. (b) Compare the widths of the three confidence intervals. At which level of confidence do you have the widest interval
(a) Construct confidence intervals are : 90%: [428.95, 444.05], 95%: [427.13, 445.87], 99%: [423.67, 449.33].
(b) The 99% confidence interval has the widest interval.
(a) To construct confidence intervals for the mean breaking strength of the wool fibers, we shall use the given formula:
Confidence interval = sample mean ± (critical value * standard error)
The critical value here will depends on the level of confidence. For a 90% confidence level, the critical value is 1.645 (from the standard normal distribution). For a 95% confidence level, the critical value is 1.96, and for a 99% confidence level, the critical value is 2.576.
Standard error is obtained by dividing the sample standard deviation by the square root of the sample size.
Plugging in the values, we can calculate the confidence intervals:
90% confidence interval:
Lower bound = 436.5 - (1.645 * (11.9 / √20))
Upper bound = 436.5 + (1.645 * (11.9 / √20))
95% confidence interval:
Lower bound = 436.5 - (1.96 * (11.9 / √20))
Upper bound = 436.5 + (1.96 * (11.9 / √20))
99% confidence interval:
Lower bound = 436.5 - (2.576 * (11.9 / √20))
Upper bound = 436.5 + (2.576 * (11.9 / √20))
(b) The width of a confidence interval depends on both the critical value and the standard error. When aiming for a higher level of confidence, the interval becomes wider as it requires a larger critical value. Consequently, it can be concluded that among the given confidence intervals, the one with a 99% confidence level will have the broadest range.
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A solid metal rectangular pyramid has a base that measures 16 cm by 25 cm The Solid is melted and recast into a solid cavare pyramid of the same height. Find the length of the side of the base of the square pyramid.
What is the value of X in the equation x²-6x+9=25
Answer:
X = -2 or X = 8
Explanation:
numerical variables can be subdivided into which two types?
Numerical variables can be subdivided into two types: discrete variables and continuous variables.
Discrete Variables: Discrete variables are numeric variables that take on a finite or countable number of distinct values. These values are typically whole numbers or integers. For example, the number of students in a classroom, the count of items in a store inventory, or the number of cars in a parking lot are all examples of discrete variables. Discrete variables cannot have values between the defined data points.
Continuous Variables: Continuous variables are numeric variables that can take on any value within a specified range or interval. They can be measured to a high degree of precision. Continuous variables are often obtained through measurements or observations and can have decimal values. Examples of continuous variables include height, weight, temperature, time, and distance. Continuous variables can have an infinite number of possible values within the given range.
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Jan 258:00:56 AM
Watch help video
Write the equation of the line that passes thought the points (0,4) and (-9, -3).
Put your answer in fully reduced point-slope form, unless it is a vertical or horizontal line.
Answer:
The equation of the straight line in point-slope form
\(y - 4 = \frac{7}{9} (x-0)\)
The equation of the straight line
7x -9y +36 =0
Step-by-step explanation:
Step(i):-
Given that the points (0,4) and (-9,-3)
The slope of the line
\(m = \frac{y_{2} - y_{1} }{x_{2}- x_{1} } = \frac{-3-4}{-9-0} = \frac{7}{9}\)
Step(ii):-
Equation of the straight line passing through the point (0,4) and having slope m = 7/9
\(y - y_{1} = m (x-x_{1} )\)
\(y - 4 = \frac{7}{9} (x-0)\)
9 y - 36 = 7x
9y = 7x + 36
\(y = \frac{7x}{9} +\frac{36}{9}\)
Slope - intercept form
\(y = \frac{7x}{9} +4\)
Final answer:-
The equation of the straight line in point-slope form
\(y - 4 = \frac{7}{9} (x-0)\)
The equation of the straight line
7x -9y +36 =0
If P={1,2,3,5,7} ,Q={1,3,6,10,15}. Then the cardinal number of P∩Q is
Answer:
pppp
Step-by-step explanation:
ppppp
Brent was writing a paper. He typed
942 words and then had to delete a
paragraph that contained 310 words.
He wrote another 2 pages that each
contained 524 words. How many words
are in Brent's paper now?
Answer:
1680
Step-by-step explanation:
subtract the 310 words and then multiply 524 by 2 then add the answer of the subtraction to what you got in the multiplication
Please Help I Don't Understand!!!
Answer:
14.5
Step-by-step explanation:
\( \frac{2}{7} = \frac{5}{m + 3} \)
\(2(m + 3) = 7 \times 5\)
\(2m + 6 = 35\)
\(2m = 35 - 6\)
\(2m = 29\)
\(m = 14.5\)
Answer:
m = 14.5
Step-by-step explanation:
\(\frac{2}{7}\) = \(\frac{5}{m+3}\) ( cross- multiply )
2(m + 3) = 35
2m + 6 = 35 ( subtract 6 from both sides )
2m = 29 ( divide both sides by 2 )
m = 14.5
Rex is driving from his house to New York. At 10:00 AM, he is 200 miles from New York. At 12:00 PM, he is 80 miles from New York. What is Rex's average driving speed between 10:00 AM and 12:00 PM
Answer:
60 miles per hour
Step-by-step explanation:
We need to simply divide the total distance he traveled by the total time it took him.
At 10:00 AM, he is 200 miles from New York.
At 12:00 PM, he is 80 miles from New York.
This means that 2 hours has elapsed and the distance he has traveled is:
200 - 80 = 120 miles
Therefore, his average speed is:
120 / 2 = 60 miles per hour
6 rational numbers between -2/3 and 1/2
Answer:
-0.5, -0.4,-0.3,-0.2,-0.1 and 0.1
Step-by-step explanation:
We have to calculate 6 rational number between -2/3 and 1/2
So,
\(\frac{-2}{3} =-0.6\\\frac{1}{2} =0.5\)
Now,
Rational numbers between -2/3 and 1/2 will be -0.5, -0.4,-0.3,-0.2,-0.1 and 0.1
How many solutions does this nonlinear system of equations have? NEED HELP ASAP!
Answer:
Step-by-step explanation:
two
A beach ball has a radius of 12 in. how much air will the beach ball hold?
Volume of beach ball or the amount of air will the beach ball hold is 2304π in³.
Formula
Volume of Sphere is 4/3πr³
The volume, V, of a sphere with radius r is 4/3πr³
By employing a technique that roughly represents the surface area of a sphere using square pyramids, it is possible to obtain the formula for the volume of a sphere using the formula for its surface area, which is 4πr^2.
Where r is the radius of the sphere .
As given
12 inches is the radius of a beach ball.
r = 12 in
Substitute the r in above volume equation,
V =4/3πr³
V=4/3π(12)³
V= 2304π in³
Therefore, the amount of air will the beach ball hold is 2304π in³.
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Amelia is taking a road trip. She drove 250 miles the first day. If 250 is 40% of her total distance, how many miles is her roadtrip in all?
Answer: 625 miles
Step-by-step explanation:
100-40=60
so she has 60% for her distance so lets munis 40 from it and add 250 to 250
250+250=500
60-40=20
20 is half of 40 so whats half of 250? its 125
so she drove 625 miles for her road trip 2 and 1/2 a day
Question Answer O A True O B False Question Answer O A True O B False Question Answer OA O B True False Using logarithmic differentiation we obtain that the derivative of the function y = x2x² satisfies the equation y = 4x log x + 2x. y Using logarithmic differentiation we obtain that the derivative of the function (1+x²)2 (1 + sin x)² y= 1-x² satisfies the equation 4x 2cos x 2x -= + y 1 + x² 1 + sin x 1-x² Given two complex numbers z=3-1 and w=3+ the product z2w equals 30-10%. Y'
In the first question, the statement "Using logarithmic differentiation we obtain that the derivative of the function y = x² satisfies the equation y = 4x log x + 2x" is true.
In the first question, using logarithmic differentiation on the function y = x², we differentiate both sides, apply the product rule and logarithmic differentiation, and simplify to obtain the equation y = 4x log x + 2x, which is correct.
In the second question, the statement is false. When using logarithmic differentiation on the function y = (1+x²)²(1 + sin x)²/(1-x²), the derivative is calculated correctly, but the equation given is incorrect. The correct equation after logarithmic differentiation should be y' = (4x/(1 + x²)(1 + sin x))(1-x²) - (2x(1+x²)²(1 + sin x)²)/(1-x²)².
In the third question, the product z²w is calculated correctly as 30-10%.
It is important to accurately apply logarithmic differentiation and perform the necessary calculations to determine the derivatives and products correctly.
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please help me please will give brainliest to anyone
only do number 11
9514 1404 393
Answer:
9. ±1, ±2, ±3, ±6
11. ±1, ±2, ±3, ±4, ±6, ±12
Step-by-step explanation:
The possible rational roots are (plus or minus) the divisors of the constant term, divided by the divisors of the leading coefficient.
Here, the leading coefficient is 1 in each case, so the possible rational roots are plus or minus a divisor of the constant term.
__
9. The constant is -6. Divisors of 6 are 1, 2, 3, 6. The possible rational roots are ...
±{1, 2, 3, 6}
__
11. The constant is 12. Divisors of 12 are 1, 2, 3, 4, 6, 12. The possible rational roots are ...
±{1, 2, 3, 4, 6, 12}
_____
A graphing calculator is useful for seeing if any of these values actually are roots of the equation. (The 4th-degree equation will have 2 complex roots.)
Linda is 3 years older than her baby brother, Liam. The table shows the relationship between Linda's and Liam's ages. Which equation relates Linda's age to Liam's age?
The equation describing Linda's Age and Liam's age will be: Liam's Age(Baby Brother) + 3 = Linda Age.
What equation relates Linda's age to Liam's age?An equation means the formula that expresses the equality of two expressions by connecting them with the equals sign =.
Here, let us denote Linda's age as L and Liam's age as B. We are given that Linda is 3 years older than Liam, so we can write the equation as L = B + 3
This equation states that Linda's age (L) is equal to Liam's age (B) plus 3 years. Therefore, Linda's age can be determined by adding 3 years to Liam's age.
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Maisiereceives a weekly paycheck from her boss she spent half of this week paycheck on food and spent and additional 5.00 on a taxi . If she didn't spend any additional money and finished the week with 41 how much is Masie weekly paycheck
Answer:
If she didn't spend any additional money and finished the week with 41 how much is Masie weekly paycheck. 1. See answer.
1. five friends go to the movie theater together. (a) if there are 5 seats open in a row, how many ways can the friends choose seats? (b) if there are 7 seats open in a row, how many ways can the friends choose seats? (note that two seats will remain empty.) (c) repeat part (b), but where two of the friends are required to sit next to each other. (d) repeat part (b), but where two of the friends are required to not sit next to each other.
he number of ways the friends can choose seats without sitting next to each other is 7! - 4! = 5040
If there are 5 seats open in a row and no restrictions on the seating arrangement, each friend can choose one seat independently. Therefore, the total number of ways the friends can choose seats is 5 factorial (5!) which is equal to 5 × 4 × 3 × 2 × 1 = 120.
(b) If there are 7 seats open in a row and no restrictions on the seating arrangement, each friend can choose one seat independently. Therefore, the total number of ways the friends can choose seats is 7 factorial (7!) which is equal to 7 × 6 × 5 × 4 × 3 × 2 × 1 = 5040.
(c) If two friends are required to sit next to each other, we can treat them as a single entity. This reduces the problem to arranging four entities (three individual friends and one pair of friends) and three empty seats. The total number of ways the friends can choose seats is then 4 factorial (4!) which is equal to 4 × 3 × 2 × 1 = 24.
(d) If two friends are required to not sit next to each other, we can count the complement of the situation in part (c). There are 7 factorial (7!) total seating arrangements without any restrictions. From part (c), we found that there are 4 factorial (4!) seating arrangements where the two friends sit next to each other. - 24 = 5016.
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Evaluate: l 6 x 7 l ÷ l-2 l
Answer:
Step-by-step explanation:
You got this
Answer:
Step-by-step explanation:
l6 x 7l = 42
l-2l = 2
= 42 : 2 = 21
The area of a triangle is 474. Two of the side lengths are 87 and 19 and the included angle is acute. Find the measure of the included angle, to the nearest tenth of a degree.
Answer:
Let $x$ be the measure of the included angle. We can use the formula for the area of a triangle to find an equation in terms of $x$.
The area of a triangle is given by $\frac{1}{2}bh$, where $b$ is the length of the base and $h$ is the length of the altitude from the base to the opposite vertex. In this case, the base is 87 and the altitude is the length of the line segment from the vertex opposite the included angle to the base, which we can find using the Law of Sines:
$$\frac{h}{\sin x} = \frac{19}{\sin(180^\circ-x)}$$
$$h = \frac{19\sin x}{\sin(180^\circ-x)}$$
Substituting this expression for $h$ into the formula for the area of the triangle, we get
$$\frac{1}{2}bh = \frac{1}{2} \cdot 87 \cdot \frac{19\sin x}{\sin(180^\circ-x)} = 474$$
Solving this equation for $x$ is somewhat difficult, but we can use a calculator or computer to approximate the value of $x$. Using a calculator, we find that $x \approx 31.4^\circ$. Rounding to the nearest tenth of a degree, the measure of the included angle is $\boxed{31.4^\circ}$.
Step-by-step explanation:
a manufacturer of potato chips would like to know whether its bag filling machine works correctly at the 411.0 gram setting. it is believed that the machine is underfilling the bags. a 35 bag sample had a mean of 406.0 grams. a level of significance of 0.05 will be used. state the hypotheses. assume the standard deviation is known to be 25.0.
Using a 35-bag sample with a mean of 406.0 grams, a known standard deviation of 25.0 grams, and a level of significance of 0.05, you can perform a one-tailed Z-test to determine whether to reject or fail to reject the null hypothesis.
To test if the potato chip manufacturer's bag filling machine is working correctly at the 411.0-gram setting, we will state the hypotheses using the given terms.
Null Hypothesis (H0): The machine fills bags correctly, with a mean weight of 411.0 grams (µ = 411.0 grams)
Alternative Hypothesis (H1): The machine is underfilling bags, with a mean weight less than 411.0 grams (µ < 411.0 grams)
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Any has 10 pieces of fruit. 7 are apples and the rest are oranges.
She chooses a piece of fruit at random eats it then chooses a second piece of fruit at random
Please draw this
The fraction which should go into the boxes marked A and B in their simplest form is 3/4 and 1/4 respectively.
What fraction should go into the boxes?Total number of fruits Amy has = 10
Number of Apples = 7
Number of Oranges = 3
First random pieces of fruits chosen:
Probability of choosing Apples = 6/9
Probability of choosing Oranges = 3/9
Second random pieces of fruits chosen:
Probability of choosing Apples = 6/8
= 3/4
Probability of choosing Oranges = 2/8
= 1/4
Therefore, the probability of choosing Apples or oranges as the second piece is 3/4 or 1/4 respectively.
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