Answer:
3/5
S9tep-by-step explanation:
Answer:
He used 0.6 of a bag each day
Step-by-step explanation:
We are looking for bags per day so you can
bags/day
3 bags/5 days
3/5 = 0.6
In 2015, the average distance from Earth to the moon was about 3.74 x 105 km. The distance from Earth to Mars was about 9.25 x 107 km. How much farther is traveling from Earth to Mars than from Earth to the moon? Write your answer in scientific notation.
Traveling from Earth to Mars is approximately 9.249626 x 10^7 km farther than traveling from Earth to the moon.
Earth to Mars is compared to traveling from Earth to the moon, we need to calculate the difference between the distances.
The distance from Earth to the moon is approximately 3.74 x 10^5 km.
The distance from Earth to Mars is approximately 9.25 x 10^7 km.
To find the difference, we subtract the distance to the moon from the distance to Mars:
9.25 x 10^7 km - 3.74 x 10^5 km
To subtract these numbers, we need to make sure the exponents are the same. We can rewrite the distance to the moon in scientific notation with the same exponent as the distance to Mars:
3.74 x 10^5 km = 0.374 x 10^6 km (since 0.374 = 3.74 x 10^5 / 10^6)
Now we can perform the subtraction:
9.25 x 10^7 km - 0.374 x 10^6 km = 9.25 x 10^7 km - 0.374 x 10^6 km
To subtract, we subtract the coefficients and keep the same exponent:
9.25 x 10^7 km - 0.374 x 10^6 km = 9.25 x 10^7 - 0.374 x 10^6 km
Simplifying the subtraction:
9.25 x 10^7 - 0.374 x 10^6 km = 9.249626 x 10^7 km
Therefore, traveling from Earth to Mars is approximately 9.249626 x 10^7 km farther than traveling from Earth to the moon.
Scientific notation is a convenient way to express very large or very small numbers. It consists of a coefficient (a number between 1 and 10) multiplied by a power of 10 (exponent). It allows us to write and manipulate such numbers in a compact and standardized form.
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100 Points! Geometry question. Photo attached. Please show as much work as possible. Thank you!
Answer:
x = 42
y = 21
Step-by-step explanation:
Since its a right triangle, we have:
sin x = opposite/hypotenuse
cos x = adjacent/hypotenuse
\(sin (60) = \frac{21\sqrt{3} }{x} \\\\x= \frac{21\sqrt{3} }{sin (60)} \\\\x= \frac{21\sqrt{3} }{\frac{\sqrt{3} }{2} } \\\\x = \frac{21\sqrt{3} *2 }{\sqrt{3} } \\\\x = 21*2\\\\x = 42\)
\(cos (60) = \frac{y}{x}\\\\cos (60) = \frac{y}{42}\\\\y = cos (60)*42 \\\\y = \frac{1}{2} * 42\\\\y = 21\)
please help!!! i don’t know how to answer this and i don’t want to fail D: so please help!!
Answer: Plant B
Step-by-step explanation:
Plant A is 3 millimeters / 2 days = 1.5 millimeter per day
Plant B is (23-19)/(10-8)=2 millimeter per day
If A = (-2, -4) and B = (-8, 4), what is the length of ?  A. 14 units  B. 16 units  C. 10 units  D. 12 units
Solve the equation using Gauss Naïve method, a) 3x1 − 2x2 + x3 = −10, 2x1 + 6x2 − 4x3 = −10, −8x1 − 2x2 + 5x3 = −26
Answer:
Step-by-step explanation:
Given the system of equation
3x1 − 2x2 + x3 = −10 ............. 1
2x1 + 6x2 − 4x3 = −10 ............ 2
−8x1 − 2x2 + 5x3 = −26 ............... 3
Reduce the system of equations:
multiply equation 1 by 3 and add to 2
Eqn 1 * 3 gives;
9x1 − 6x2 + 3x3 = −30
Add to equation 2:
9x1+2x1 +(3x3-4x3) = -30-10
11x1 - x3 = -40 ........... 4
multiply eqn 3 by 3 and add to eqn 2
eqn 3 * 3 gives
−24x1 − 6x2 + 15x3 = − 78
Add to eqn 2:
-24x1+2x1)+15x3-4x3 = -78-10
-22x1 + 11x3 = -88 ......... 5
solve 4 and 5:
11x1 - x3 = -40 ........... 4 * 2
-22x1 + 11x3 = -88 ......... 5 * 1
.....................................................
22x1 - 2x3 = -80
-22x1 + 11x3 = -88
Add together:
-2x3 + 11x3 = -80-88
9x3 = -168
x3 = -168/9
x3 = 18.7
subtitute x3 = 18.7 into 4
11x1 - 18.7 = -40
11x1 = -40+18.7
11x1 = -21.3
x1 = -21.3/11
x1 = -1.93
Substitute x1 and x3 into 1
3(-1.93)− 2x2 + 18.7 = −10
- 5.79-2x2 = -28.7
-2x2 = -18.7 +5.79
-2x2 = -22.91
x2 = 11.455
If twice a number, added to 3 is divided by the number plus 5, the result is three halves. Find the number.
The number is…..
Answer:2
Step-by-step explanation:
(2x+5)/3 = 3/2
Multiply both sides by 3:
2x + 5 = 9/2
Subtract 5 from both sides:
2x = 9/2 - 5 = 9/2 - 10/2 = 3/2
Divide both sides by :
x = 3/4
Answer:
-1/3
Step-by-step explanation:
A number x is multiplied by 2, then has 3 added to it, then is divided by x+5, and the answer is 3 halves.
Or, as an equation:
\( \frac{2x + 3}{x + 5} = \frac{3}{2} \)
Let's cross multiply:
\(4(2x + 3) = 2(x + 5)\)
Expand:
\(8x + 12 = 2x + 10\)
Now solve:
\(6x + 12 = 10\)
\(6x = -2\)
\(x = \frac{-1}{3} \)
So the answer is -1/3
Which equation represents a nonlinear
Function
2y = 1/2x + 5
y = 1/2x - 5
3y = 1/2x + 5
4y = (1/2)^x -5
Answer:
4y = (1/2)^x -5
Step-by-step explanation:
The first three equations are lines. All the variables have a power of just one (power of one is a math number that is not written) They are actually all written in slope-intercept form even. Line equations are linear function. Yay the words match!
You get a curve (not linear) when you have exponents, square roots or variables in the denominator of a fraction. Or as here, a variable for an exponent!
ridgette brings a bag of 100 assorted candies in different flavors to her swim meet. She randomly grabs some candies out of the bag and hands them out to her teammates. The table below shows the flavors she has handed out. Flavor Number of candies lemon 6 orange 5 grape 8 cherry 13 Based on the data, estimate how many lemon candies were in the bag of 100 candies
Based on the data, the estimated number of lemon candies in the bag of 100 assorted candies is about 19.
What is proportion?In mathematics, proportion refers to the relationship between two quantities that are equivalent or have a constant ratio. It is usually expressed as a fraction or a ratio. For example, if a recipe calls for 2 cups of flour and 1 cup of water, the proportion of flour to water is 2:1 or 2/1. Proportions are used in a variety of mathematical and real-world situations, such as solving problems involving ratios, rates, and percentages.
In the given question,
We can use a simple proportion to estimate the number of lemon candies in the bag. We know that Ridgette handed out a total of 6 lemon candies out of a total of candies. Therefore, the proportion of lemon candies in the bag is:
6/total candies = number of lemon candies/100
We can cross-multiply to solve for the number of lemon candies:
number of lemon candies = 6 x 100 / total candies
We can also use the information about the other flavors to estimate the total number of candies in the bag. The total number of candies is:
total candies = lemon + orange + grape + cherry
Using the information from the table, we can estimate the total number of candies:
total candies = 6 + 5 + 8 + 13 = 32
Therefore, the estimated number of lemon candies in the bag is:
number of lemon candies = 6 x 100 / 32 = 18.75
We can round this to the nearest whole number to estimate that there were about 19 lemon candies in the bag of 100 assorted candies.
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A child is being pushed by his father. The father starts swinging the child at a height of one foot. Each successive push increases the height of the child by 15%. How many pushes will it take for the child to reach a height of 20 feet?
The father would have to push the child approximately 127 times for the child to attain a height of 20feet
Data;
Initial height = 1 footSuccessive increase = 15% = 0.15 ftMaximum height = 20 feetNumber of Push = ?The Number of Push RequiredTo calculate the number of push required, we have to write an equation to represent this.
\(y = 1 + 0.15x\)
y = maximum number of push
x = number of times required to push
\(20 = 1 + 0.15x\\20 - 1 = 0.15x \\19 = 0.15x\\\frac{19}{0.15} = \frac{0.15x}{0.15} \\x= 126.6\\x = 127\)
The father would have to push the child approximately 127 times for the child to attain a height of 20feet
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Hi help please quick
Answer:
Initial amount: 934 g
After 80 years: 147 g
Step-by-step explanation:
\( A(t) = 934 (\dfrac{1}{2})^\frac{t}{30} \)
The initial amount occurs at t = 0.
\( A(0) = 934 (\dfrac{1}{2})^\frac{0}{30} \)
\( A(0) = 934 (\dfrac{1}{2})^0 \)
\( A(0) = 934 \times 1 \)
\( A(0) = 934 \)
After 80 years, t = 80.
\( A(80) = 934 (\dfrac{1}{2})^\frac{80}{30} \)
\( A(80) = 934 (\dfrac{1}{2})^\frac{8}{3} \)
\( A(80) = 934 (0.15749) \)
\( A(80) = 147 \)
If the fractions are 1/6 1/3 1/2 and 2/3 what is the rule for the sequence
Answer:
66
Step-by-step explanation:
dolars per hour
Find the slope-intercept equation of the line that has the given characteristics.
Slope 8 and y-intercept (0,9)
The slope-intercept equation of the line with a slope of 8 and a y-intercept of (0, 9) is y = 8x + 9.
To find the slope-intercept equation of a line, we use the form y = mx + b, where m represents the slope and b represents the y-intercept.
Given:
Slope (m) = 8
Y-intercept (0, 9)
We can substitute these values into the slope-intercept form:
y = mx + b
y = 8x + 9
Consequently, y = 8x + 9 represents the slope-intercept equation for the line with a slope of 8 and a y-intercept of (0, 9).
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At the state fair, Erin and her cousin ride the Ultra Drop roller coaster. When the ride plummets down the first hill, it dips below the loading platform. At the bottom, a camera snaps the riders picture before hurtling them back toward the sky. The equation y=x^2 - 9x + 20 models the roller coaster’s path over time. The variable y represents height (in feet) above or below the platform. At y=0, the roller coaster is even with the platform. The variable x represents the amount of time (in seconds) since the ride began. Factor and graph the equation to better understand Erin’s ride. Part 1: write the equation in factored form. Part 2: find the vertex of the parabola. Hint: to find the x-value of the vertex, take the average of the x-values of the x-intercepts or use the first part of the quadratic formula (x= - b/2a). Part 3: identify the intercepts.A. What are the x-intercepts? Hint: use the equation from Part 1.B. What is the y-intercept? Hint: use the equation y= x^2 - 9x + 20.Part 4: sketch the graph of y= x^2 - 9x + 20. Identify the vertex and x- and y- intercepts on your sketch. Part 5: use the graph to answer the questions.A. Between what times does the roller coaster dip below the platform?B. What is the height and time at which Erin’s picture is taken during the roller coaster ride? Hint: Erin’s picture is taken at the lowest point of the roller coaster.
1) y = (x -4)(x -5)
2) vertex (4.5, -0.25)
x value = 4.5
3) x intercept: 4 and 5
y intercept: 20
Explanation:Part 1:
\(\begin{gathered} y=x^2\text{ - 9x + 20} \\ y\text{ = }x^2\text{ - 5x -4x+ 20} \\ y\text{ =x (x}-5)\text{ -4(x -5)} \\ y\text{ = (x - 4)(x-5)} \end{gathered}\)Graphing the equation:
The equation in factored form:
\(\begin{gathered} y=a(x-h)^2\text{ + k} \\ \text{where vertex (h, k)} \\ \text{vertex = (}4.5,\text{ -0.25)} \end{gathered}\)Part 2:
The vertex of the parabola is (4.5, -0.25)
The x value of the vertex:
\(\begin{gathered} \text{The x intercepts are (}4,\text{ 0) and (5, 0)} \\ \text{The x values are 4 and 5} \\ \text{The average = }\frac{4+5}{2} \\ \text{The average = 9/2 = 4.5} \end{gathered}\)Part 3:
The x intercept is the point the y value is zero
y = x² - 9x + 20
0 = x² - 9x + 20
0 = (x - 4)(x -5)
(x -4) = 0 or (x - 5) = 0
x = 4 or x = 5
The x intercepts are 4 and 5
In ordered form: (4, 0) and (5, 0)
we were asked to se the equation:
The y intercept is the point the x value is zero
y = (0)² -9(0) + 20
y = 0 - 0 + 20
y = 20
the y-intercept is y = 20
In orderd form: (0, 20)
The surface of a swimming pool is 7 meters wide and 10 meters long. What is the area of the surface?
Answer:
A = 70 meters squared
Step-by-step explanation:
The area of a rectangle is given by length time width.
A = l*w
A = 7*10
A = 70 meters squared
Compute $\sqrt{25^2-7^2}$.
Answer:
24
Step-by-step explanation:
\(\sqrt{25^2-7^2}\\\\=\sqrt{(25-7)(25+7)}\\\\=\sqrt{18(32)}\\\\=\sqrt{9*2*2^5}\\\\=\sqrt{3^2\cdot 2^6}\\\\=\sqrt{(3\cdot2^3)^2}\\\\=3\cdot2^3\\\\=3\cdot8\\\\=24\)
Answer:
24
Step-by-step explanation:
First we compute the number under the radical.
We have 25² = 625 and 7² = 49, so 25² - 7² = 625 - 49 = 576.
Thus, √25² - 7² = √576 = √24², which is 24.
If a population has mean 100 and standard deviation 20, what is the mean of the sampling distribution of sample size n = 252 b. If a population has mean 100 and standard deviation 20, what is the standard deviation of the sampling distribution of sample size n = 25? 4 c. A given exam has a normal distribution with a mean of 70 and a standard deviation of 10. A sample of size 25 is selected. What percentage of the time would you expect the mean of this sample size to fall between 66 and 74? d. A given exam has a normal distribution with a mean of 70 and a standard deviation of 10. A sample of size 25 is selected. What percentage of the time would you expect the mean of this sample size to be less than 70? % e. A given exam has a normal distribution with a mean of 70 and a standard deviation of 10. A sample of size 25 is selected. What percentage of the time would you expect the mean of this sample size to be greater than 68? %
The percent of the time you would expect the mean of the sample size of 25 to fall between 66 and 74 is 68.27%, to be less than 70 is 50%, and to be greater than 68 is 84.13%.
a. If a population has a mean of 100 and a standard deviation of 20, then the mean of the sampling distribution of a sample size of n=252 will be 100. This is because the sample means of a sampling distribution will always be equal to the population mean.
b. The standard deviation of the sampling distribution of a sample size of n=25 is 4. This is calculated using the formula: σx = σ/√n, where σ is the population standard deviation (20) and n is the sample size (25).
c. The percentage of the time you would expect the mean of the sample size to fall between 66 and 74 is 68.27%. This is calculated using the Z-score formula, which is (x-μ)/σ, where x is the upper limit (74), μ is the population mean (70), and σ is the population standard deviation (10). The Z-score for the upper limit is (74-70)/10=0.4. We then use the standard normal table to find the area between -∞ and 0.4, which is 0.6827.
d. The percentage of the time you would expect the mean of the sample size to be less than 70 is 50%. This is because the Z-score for a mean of 70 is 0, and the area below 0 is 0.5 or 50%.
e. The percentage of the time you would expect the mean of the sample size to be greater than 68 is 84.13%. This is calculated using the Z-score formula, which is (x-μ)/σ, where x is the lower limit (68), μ is the population mean (70), and σ is the population standard deviation (10). The Z-score for the lower limit is (68-70)/10=-0.2. We then use the standard normal table to find the area between -∞ and -0.2, which is 0.8413.
The percent of the time you would expect the mean of the sample size of 25 to fall between 66 and 74 is 68.27%, to be less than 70 is 50%, and to be greater than 68 is 84.13%.
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HELP ME NOW AND PLEASE!!! i need you to identify the mesurement of EHF
THIS IS TOO STRESS FUL
Answer:
63*
Step-by-step explanation:
Answer:
63
Step-by-step explanation:
PLEASE!!!
NEED HELP ASAP!
Answer:
the answer is the last one.
please help with this question
Answer:
B. xy(y - x) (y + x)
Step-by-step explanation:
SOMEONE PLEASE PLEASE HELP!!!!
Answer:
x=16
Step-by-step explanation:
I don't know if this is right! Just a guess! if that is a test, don't use my answer!
Of all the soft drink consumers in a particular sales region, 30% prefer Brand A and 70% prefer Brand B. Of all these soft drink consumers, 20% prefer Brand A and are female, and 40% prefer Brand B and are female. What is the probability that a randomly selected consumer is female, given that the person prefers Brand A? A. 0.18 B. 0.21 C. 0.34 D. 0.67
Answer:
The answer to this question should be D. 0.67
Hope this helped.
The number of three-digit numbers with distinct digits that can be formed using the digits 1, 2, 3, 5, 8, and 9 is what
. The probability that both the first digit in the last digit of the three digit number are even numbers is what
The requried, probability that both the first digit in the last digit of the three-digit number is even numbers is 20%.
To count the number of three-digit numbers with distinct digits that can be formed using the digits 1, 2, 3, 5, 8, and 9, we can use the permutation formula:
P(n, r) = n! / (n-r)!
In this case, we have n = 6 (since we have 6 digits to choose from) and r = 3 (since we want to form three-digit numbers). Using the formula, we get:
P(6, 3) = 120
We can choose the first digit in two ways (2 or 8), and we can choose the last digit in three ways (2, 8, or 6). For the middle digit, we have four digits left to choose from (1, 3, 5, or 9), since we cannot repeat digits. Therefore, the number of three-digit numbers with distinct digits that have an even first and last digit is:
2 x 4 x 3 = 24
The total number of three-digit numbers with distinct digits is 120, so the probability that a randomly chosen three-digit number with distinct digits has an even first and last digit is:
24/120 = 0.2 or 20%
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Somebody please answer this question I’m begging you
Answer: The answer is A, the y value increases by 1.5 as the x value increases by 1. Therefore A does not describe the graph.
Evaluate: (−1)(− 1)(− 1)(− 1) (− 1)
Answers:
A) −1
B) 0
C) 1
D) 2
Step-by-step explanation:
\((−1)(− 1)(− 1)(− 1) (− 1)\)
use the rules for multiplication
\( - (1 \times 1 \times 1 \times 1 \times 1)\)
then Calculate the products
= -1
hope it helps!Answer:
A
Step-by-step explanation:
An odd number of negative multipliers results in a negative answer so overall result will be negative.
- 1 × - 1 × - 1 × - 1 ×- 1
= 1 × - 1 × - 1 × - 1
= 1 × 1 × - 1
= 1 × - 1
= - 1 → A
PLEASE
Describe one difference between the graph of y = nx^2 and the graph of
y = nx^3 for any rational number n.
Answer:
One difference between the graph of y = nx^2 and y = nx^3 is that the graph of y = nx^3 is steeper than the graph of y = nx^2 near the origin. This is because the power of x is one greater in the equation y = nx^3 than it is in the equation y = nx^2, which means that the rate of change of y with respect to x is increasing more rapidly in the former. As a result, the curve of y = nx^3 will be more curved and will have a steeper slope at the origin than the curve of y = nx^2.
Another difference is that the graph of y = nx^3 will have both positive and negative values for x and y, whereas the graph of y = nx^2 will only have positive values of y for positive values of x. This is because the exponent of x in y = nx^3 is odd, which means that the graph will pass through the origin and change signs as it crosses the x-axis. On the other hand, the exponent of x in y = nx^2 is even, so the graph will only have positive values for y when x is positive.
Step-by-step explanation:
The coordinates of the point � G are ( 0 , 8 ) (0,8) and the coordinates of point � H are ( 8 , 8 ) . (8,8). What is the distance, in units, between the point � G and point � ? H?
The distance between the points G and H is D = 8 units
Given data ,
Let the distance between 2 points be represented as D
Now , let the first point be G ( 0 , 8 )
Let the second point be H ( 8 , 8 )
Now , let the distance between G and H be D , where
D = √( ( x₂ – x₁ )² + ( y₂ – y₁ )²)
D = √ ( 0 - 8 )² + ( 8 - 8 )²
D = √64 units
D = 8 units
Hence , the distance is 8 units
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Hey, what is 2*3+2*6^588+(3/3)=? I keep getting it wrong all the time.
I have another question, chocolate cake or red velvet cake.
Polygon ABCD is rotated to get polygon A′B′C′D′.
Graph of polygon ABCD in quadrant 2 with point A at negative 7 comma 5, point B at negative 2 comma 8, point C at negative 2 comma 4, and point D at negative 4 comma 3 and polygon A prime B prime C prime D prime in quadrant 1 with point A prime at 5 comma 7, point B prime at 8 comma 2, point C prime at 4 comma 2, and point D prime at 3 comma 4
Determine the direction and angle of rotation.
270° clockwise rotation
270° counterclockwise rotation
90° counterclockwise rotation
180° clockwise rotation
The direction and the angle of rotation if polygon ABCD is rotated to get polygon A′B′C′D′ is 270° counterclockwise rotation.
Given are graphs of polygon ABCD and A′B′C′D′.
The points of ABCD are,
A(-7, 5), B(-2, 8), C(-2, 4) and D(-4, 3).
The points of A′B′C′D′ are,
A'(5, 7), B'(8, 2), C'(4, 2) and D'(3, 4).
A point (x, y) is changed to the point (y, -x).
This transformation is done if the angle of rotation is 270 degrees counterclockwise or 90 degrees clockwise.
Hence the correct option is 270° counterclockwise rotation.
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Camila has 6 bags of candy. She can pour 1/3 of a bag of candy into a bowl. How many bowls of candy can Camila make in all?
Answer:
18 Bowls of Candy
Step-by-step explanation:
Camila has 6 bags of candy, and she can pour 1/3 of a bag into a bowl. To determine how many bowls of candy she can make in total, we need to divide the total amount of candy by the amount of candy per bowl.
Since Camila can pour 1/3 of a bag into a bowl, it means she can make 3 bowls of candy with a full bag.
Now, we can calculate the total number of bowls of candy:
Total bowls of candy = (Number of bags) x (Bowls per bag)
Total bowls of candy = 6 bags x 3 bowls per bag
Total bowls of candy = 18 bowls
Therefore, Camila can make a total of 18 bowls of candy with her 6 bags of candy.
1 Insert the comma al in the following numbers and write in the numbers in words in iternational system. 43,231