\((\stackrel{x_1}{8}~,~\stackrel{y_1}{-16})\qquad (\stackrel{x_2}{1}~,~\stackrel{y_2}{5}) \\\\\\ \stackrel{slope}{m}\implies \cfrac{\stackrel{\textit{\large rise}} {\stackrel{y_2}{5}-\stackrel{y1}{(-16)}}}{\underset{\textit{\large run}} {\underset{x_2}{1}-\underset{x_1}{8}}} \implies \cfrac{5 +16}{-7} \implies \cfrac{ 21 }{ -7 } \implies - 3\)
\(\begin{array}{|c|ll} \cline{1-1} \textit{point-slope form}\\ \cline{1-1} \\ y-y_1=m(x-x_1) \\\\ \cline{1-1} \end{array}\implies y-\stackrel{y_1}{(-16)}=\stackrel{m}{- 3}(x-\stackrel{x_1}{8}) \implies y +16 = - 3 ( x -8) \\\\\\ y+16=-3x+24\implies {\Large \begin{array}{llll} y=-3x+8 \end{array}}\)
Woodsmith magazine gave instructions on how to build a pine cupboard. Lumber will be needed for two shelves 834 inches long, two base sides 1212 inches long, and two door stiles 2918 inches long. Your lumber comes in 6 foot lengths.
Required:
How many feet of lumber will you need?
Answer: 8.4 feet
Step-by-step explanation:
Given: Lumber required for each shelf = \(8\dfrac{3}{4}\ inches\)
For each base side = \(12\dfrac12\ inches\)
For each door stile = \(29\dfrac18\ inches\)
Total lumber required = \((2\times 8\dfrac34 + 2\times12\dfrac12+2\times29\dfrac18)\ \ in.\)
\(=(2\times\dfrac{35}{4}+2\times\dfrac{25}{2}+2\times\dfrac{233}{8})\ in\\\\= (\dfrac{35}{2}+25+\dfrac{233}{4})\ in.\\\\=\dfrac{403}{4}\ in. =\dfrac{403}{4}\times\dfrac1{12}\ feet \ \ \ \ [1 feet = 12 \ in.]\\\\\approx8.4\ feet\)
Hence, we will need 8.4 feet lumber.
Circle 1 has center (−6, 2) and a radius of 8 cm. Circle 2 has center (−1, −4) and a radius 6 cm.
What transformations can be applied to Circle 1 to prove that the circles are similar?
Enter the scale factor as a fraction in simplest form.
The circles are similar because the transformation rule (_ , _) can be applied to Circle 1 and then dilate it using a scale factor of (_/_)
Answer
its scale factor is 4/3 and 0.75
Step-by-step explanation:
Choose the definition for the function.
A.
C.
4x
2x + 2
-
43 2
73
2x - 2
-x-4
if x < 0
if x ≥ 0
if x < 0
if x > 0
B.
D.
2x + 2
-x+4
-x + 4
2x + 2
if x ≤ 0
if x > 0
if x < 0
if x > 0
Enter
The piecewise function for this problem is defined as follows:
B.
y = 2x + 2, x ≤ 0.y = -4/3x + 4, x > 0.How to define the function?The function is a piecewise function, as the function has different definitions based on the input of the function.
The different definitions for the graph are given as follows:
Left of x = 0. (closed). Right of x = 0. (open).To the left of x = 0, we have a linear function with intercept of 2 and slope of 2, hence it is given as follows:
y = 2x + 2, x ≤ 0.
To the right of x = 0, we have a linear function with intercept of 4 and slope of -4/3, hence it is given as follows:
y = -4/3x + 4, x > 0.
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If y varies directly as x, and y = 8 when x = 4, find y when x = 24.
The value of y is 48
How to calculate the value of y in the variation ?y= kx
let's solve for k which is the constant
y= 8 , x= 4
k= 8/4
k= 2
Next is to calculate the value of y when x is 24
y = 2 × 24
y= 48
Hence the value of y is 48
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in 1990, a radio cost $25. Now, the radio cost $5. What is the percent of change
Answer:
the percent change is 80%
Step-by-step explanation:
5 is 20% of 25 then that means that the percent change is 80%
The sum of two integers is -186. The larger integer is 14 less than
three times the smaller number. Find the two integers.
The values of the two integers are -43 and -143.
What are the values of the two integers?Let the value of the smaller integer be "x".
Smaller integer = xLarger integer = 3x - 14Sum of the integers = -186Since, the sum of two integers is -186.
Smaller integer + Larger integer = -186
x + ( 3x - 14 ) = -186
Solve for x
x + 3x - 14 = -186
4x - 14 = -186
4x = -186 + 14
4x = -172
x = -172/4
x = -43
Hence;
The smaller integer = x = -43
The largere integer = 3x - 14 = 3(-43) - 14 = -143.
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Which is the way to express 10+12 as the product of the GCF and another sum?
Answer:
The answer is pretty simple it's 12+10
Step-by-step explanation:
Find the value of each variable in the parallelogram.
Answer:
x = 9 and y = 15
Step-by-step explanation:
this is the answer because each side is equivalent to the parallel line so y would be whatever is across from it
Answer:
y=15
x=9
Step-by-step explanation:
they are parallel and equal to the opposite sides
Max walked 1/5 of a mile in 1/25 of an hour to school.how far could he walk in one hour
Answer:
5 miles
Step-by-step explanation:
This is because to find the amount of miles in an hour, you have to multiply 1/5 by 25. This is one-fifth of 25, which is five.
Put the following equation of a line into slope-intercept form, simplifying all fractions. 3y-9x=-6
Answer: y=3x-2
Step-by-step explanation:
3y-9x=-6
First you will need to add 9x to the other side so your equation will look like 3y=9x-6. Then you need to divide all the numbers by 3. So 3y divided by 3 and 9 divided by 3 and -6 divided by 3. Your final answer should be y=3x-2.
Answer:
This equation in slope intercept form would be y = 3x - 2
Step-by-step explanation:
The following is how to solve this equation:
3y - 9x = -6
+9x +9x
----------------------
3y = 9x - 6
divide each of the numbers by 3
So the answer is y = 3x - 2
The surface area of a sphere is 900pi cubic cm. What is the length of its diameter.
The length of the diameter of the sphere is 30 cm.
The surface area of a sphere is given by the formula:
\(A = 4\pi r^2\)
where A is the surface area and r is the radius of the sphere.
We are given that the surface area of the sphere is 900π cubic cm. Therefore:
\(A = 4\pi r^2 = 900\pi\)
Dividing both sides by 4π, we get:
\(r^2 = 225\)
Taking the square root of both sides, we get:
r = 15
The diameter of the sphere is twice the radius, so:
d = 2r = 30
Therefore, the length of the diameter of the sphere is 30 cm.
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sketch the region y=sqrtx, y=0, x=4
Answer:
see attached for a sketch
area = 5 1/3 square units
Step-by-step explanation:
You want the area under the square root curve, above y=0, from x=0 to x=4.
AreaThe area is found by integrating a differential of area over appropriate limits. A vertical slice will have hight √x and width dx, so we have ...
dA = (√x)dx
A = ∫(√x)dx
The power rule can be used for the integration:
\(\displaystyle A=\int_0^4{x^{\frac{1}{2}}}\,dx=\left[\dfrac{x^{\frac{3}{2}}}{\frac{3}{2}}\right]^4_0=\dfrac{2}{3}(4^\frac{3}{2})=\dfrac{16}{3}=\boxed{5\dfrac{1}{3}}\)
The area of the region is 5 1/3 square units.
__
Additional comment
You will notice that the area is bounded by a rectangle 4 units wide and 2 units high, for an area of 4·2 = 8. The area under the parabolic curve is 2/3 of that: 2/3·8 = 16/3 = 5 1/3 square units.
This fraction will be true for any area bounded by a parabola where the vertex is one of the corners of the rectangle.
#95141404393
Please help plsssssss
Answer:
Box 1. 2x
Box 2. -13 (1/3) or (-40/3)
Box 3. 2x
Box 4. (2/3)x
Box 5. 3
Box 6. 3
Box 7. -20
Box order left to right.
Step-by-step explanation:
(5/3)x + (1/3)x = 13 (1/3) + (8/3)x
add numberator ( top number ); keep the denominator the same ( bottom number )
Line 1. (6/3)x or 2x = 13 (1/3) + (8/3)
------------------------------------------
Line 2. -13 (1/3) = (8/3)x - 2x
-------------------------------------------
Ex. 3 × (-13) = 39 - 1 = (-40/3)
--------------------------------------------
Line 3. (-40/3) = (2/3)x
---------------------------------------------
Line 4. (3) (-40/3) = (2/3)x (3)
----------------------------------------------
-40 = 2x
÷2 ÷2
Line 5. -20 = x
-------------------------------------------------
Sorry if this is a little confusing. I hope this helped!
Step-by-step explanation:
2
-13/1/3 ; 2
2/3
3 ; 3
-40
hope it help
Let \(I=\int\limits^4_{-2} {x^4cos(x^5+2)} \, dx \). Use the substitution \(u=x^5+2\) to convert \(I\) into an equivalent integral in the variable \(u\).
If \(u=x^5+2\), then \(du=5x^4\,dx\), so the integral transforms to
\(\displaystyle \int_{x=-2}^{x=4} x^4 \cos(x^5+2) \, dx = \frac15 \int_{u=-30}^{u=1026} \cos(u) \, du\)
since
\(x = -2 \implies u = (-2)^5 + 2 = -32 + 2 = -30\)
\(x=4 \implies u = 4^5 + 2 = 1024 + 2 = 1026\)
Jesse estimated the weight of his cat to be 15 to be 12 lb the actual weight is 15 what is the percent error
Please answer the screenshot.
Answer:
Brooke and Tony
Step-by-step explanation:
multiply by 4 Brooke got 64 Tony got 68.
the sum of three consecutive integers is 120. find the numbers
Answer:
39, 40, 41
Step-by-step explanation:
Let x= the first number
x+(x+1)+(x+2)= 120
3x+3=120
x=117/3
x=39
Thus, the three numbers are 39, 40, 41. which sums to 120
fv=100000, pmt=4000, i/y=5%, n=10, what is pv?
The Present value is $6,139.132.
We have,
FV=100000, pmt = 4000, I =5%, n=10
So, The present value formula is
PV=FV / (1 + \(i)^n\)
So, PV = 100, 000 / (1+ 5/100\()^{10\\\)
PV = 100,000 / (1+ 0.05\()^{10\\\)
PV = 100, 000/ (1.05\()^{10\\\)
PV = 100,000 / 1.6288946
PV= $6,139.132
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144 like exponent and with 12 like base
Answer:
That is not a question, Brainly is an educational app and I suggest you use it that way.
8n = 10.80 solve for n
Answer:
1.35
Step-by-step explanation:
10.80 divided by 8
n = 1.35
Solve and graph the compound inequalities. (You don’t need to graph it on a line plot but if you could that would be great!)
A) -12 < 5x - 2 < 13
B) 3x < -9 or 2x ≥ x + 1
Part A
\(-12 < 5x - 2 < 13\\\\-12+2 < 5x - 2+2 < 13+2 \ \text{ ... add 2 to all sides}\\\\-10 < 5x < 15\\\\-10/5 < 5x/5 < 15/5 \ \text{ ... divide all sides by 5 to isolate x}\\\\-2 < x < 3\\\\\)
To graph this, we plot open holes at -2 and 3 on the number line. Shade between these open holes to represent values between -2 and 3, but we don't include the endpoints.
See figure 1 below.
===============================================
Part B
Solve the first inequality to get
\(3x < -9\\\\3x/3 < -9/3\\\\x < -3\\\\\)
Now solve the second inequality
\(2x \ge x+1\\\\2x-x \ge x+1-x\\\\x \ge 1\\\\\)
We have \(x < -3 \ \text{ or } \ x \ge 1\)
The graph will have an open hole at -3 and a closed/filled in circle at 1. We shade everywhere but the region between these marked values. The left portion in blue represents stuff smaller than -3; the right portion in red represents values equal to 1 or larger.
See figure 2 below.
Name this set of 6 consecutive integers starting with -3 (put the set in braces { } and put commas between the elements of the set)
The idea of consecutive of an integer n is just adding 1 to n (n+1). Then, you only have to sum 1 to -3 to get "the consecutive" of -3 (-3+1 = -2). Doing that five times, we get six consecutive integers starting from -3.
Note: This is called "defining the set by comprehension" too.
I'M BEGGING YOU. HELP ME. There is an image of the question.
Answer:
24 times greater
Step-by-step explanation:
48,000/2000
If motor oil sells at 3 quarts for $2.83 what will 5 quarts cost
Answer: The correct answer is:
___________________
" 5 [five] quarts of motor oil will cost:
→ " $ 4.72 " .
___________________
First method of solving the problem:
Set up a ratio/proportion; in the form of an equation—using fractions— as follows:
___________________
\(\frac{3qt}{2.83} = \frac{5 qt}{x}\) ; → in which we are to solve for "x" {value in "dollars".}.
___________________
Now, let's "cross-factor multiply" the values in the equation:
3*(x) = (2.83) * 5 ;
___________________
Now, simplify—and rewrite the equation:
___________________
3x = 14.15 ;
___________________
Now, divide Each side of the equation by "3" ;
to isolation "x" on one side of the equation;
& to solve for "x" ;
___________________
3x / 3 = (14.15) / 3 ;
to get: x = 4.71666666.... (dollars);
___________________
Let us round that number up to: "4.72" ;
{since: "4.71" ; is followed by a digit higher than "4" } ;
___________________
The correct answer is:
→ " 5 [five] quarts of motor oil will cost: " $ 4.72 " .
___________________
Second method of solving this problem:
1) First: We treat this problem as a "unit rate" problem;
{that is; given a numeric quantity per certain numeric value;
→ we reduce/solve for what that Particular Quantity is,
per that particular [Single] Unit numeric value.
→ For this particular problem; we are given:
$ 2.83 ["2.83 dollars"] ; per " 3 quarts " ;
We began by reducing/solving this cost (in dollars);
→ "per quart" ; [i.e. per "one quart"] ;
[i.e. per "single, unit quart"] ;
So; " \(\frac{2.83 dollars}{3quarts} = (\frac{2.83}{3}) \frac{dollars}{quart}\) " ;
= (2.83 ÷ 3) dollars/quart ;
= 0.94333333333............. dollars per quart.
___________________
2) Second: Then: We take that value; and to find the cost of "5 (five) quarts" (as the problem asks)—we multiply that value by "5" :
→ Using calculator:
→ 0.943333333333333333333333.... * 5 ;
= 4.7166666666.. dollars ;
→ which is the same answer obtained from the first method.
___________________
Third method of solving the problem:
This is really just an extension of the second method directed aforementioned:
___________________
\(\frac{2.83 dollars}{3quarts} * \frac{5 quarts}{1} = ?\) ;
→ The units of "quarts" cancel out; since: [" quarts/quarts = 1 "] ;
___________________
and we have:
\(\frac{(2.83) *5}{3}\) dollars ;
→ (2.83) * 5 = 14.15 ;
→ \(\frac{(2.83) *5}{3} = \frac{(14.15)}{3}\) ;
= (14.15) ÷ 3 ; = 4.716666666666 ...
→ which is the same answer from the other 2 (two) aforementioned methods.
→ Let us round that number up to: "4.72" ;
{since: "4.71" ; is followed by a digit higher than "4" } ;
___________________
So: The correct answer is:
___________________
" 5 [five] quarts of motor oil will cost: $ 4.72 . "
___________________
Hope this is helpful to you! Best of luck to you!
Solve the equation.
x^2 − 4x + 4 = 3
Haleigh decides that instead of throwing away old candles, she can use the last bit of wax combined together to make new candles. Each candle has 10% of it's original wax left. How many 5 ounce candles can she make if she has five 20 oz candles, 5 five ounce candles, and twenty-five one-ounce candles?
Answer:she can make three 5 ounce candles. she had 15 ounces left over , 15/5=3 .
Step-by-step explanation: 5 of 10% of 20 ounces is 10 ounces, and both the 5 five ounce candles and the twenty five one ounce candles are each 2.5 extra ounces left. (5 for both), making a totalm of 15 ounces left to put into new candles.
Please Help Me I Will Give Brainliest
Answer:
Top left option
Step-by-step explanation:
There are a total of 10 boxes so
x + y = 10
The question states that x = 20 pound boxes and y = 30 pound boxes
20x + 30y = 280
ASAAPP ONE QUESTION ONLY
Answer:
mWX = 106°-------------------------------
Angles at vertex V and Y are of same measure since they intercept same arc WX:
6x - 7 = 10x - 4710x - 6x = 47 - 74x = 40x = 10Angle measure of V and Y is:
6*10 - 7 = 60 - 7 = 53°Arc measure of WX is double the inscribed angle:
mWX = 2*53° = 106°PLEASE HELP SOME ONE ILL GIVE U 30 POINTS
Which expression is equivalent to 1/49 Select all that apply.
Answer:
7^-1 * 7^-1
7^-5 * 7^3
7^7 * 7^-9
so the first three are correct!
Step-by-step explanation:
Use the graph to answer the question.
Determine the translation used to create the image.
A. 7 units to the right
B. 7 units to the left
C. 3 units to the right
D. 3 units to the left
The correct option is A, we have a translation of 7 units to the right.-
How to determine the translation?To find it, we need to analyze two correspondent vertices.
We can see that vertex A is at (1, 5), while the correspondent vertex A' is at (8, 5)
Taking the difference between that, we will get:
A' - A = (8, 5) - (1, 5) = (8 - 1, 5 - 5) = (7, 0)
The first value gives the horizontal translation and the second the vertical one
So,we have a translation of 7 units to the right, the correct option is A.
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