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topjm [15]
3 years ago
12

Need HeLpPPPP please :) ​

Mathematics
1 answer:
Zarrin [17]3 years ago
8 0

Answer:

x=   15/16

​  

Step-by-step explanation:

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The diagram above, not drawn to scale,shows a triangle, ABC, with area 28units². Show workings.
Valentin [98]

A. (0,-6)
plug in the area to the area formula for a triangle (A=1/2bh). so 28=1/2b(4) [since the height is 4]. divide by 4 (7=1/2b). multiply by 2/divide by 1/2 (14=b). the base equals 14 units long.
B. y=2/3x+4
find the slope of the line (2/3)
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4 0
3 years ago
F(x) = -4x + 15 g(x) = 7x^3 Find (f-g)(2)
djyliett [7]

(f-g)(2)=f(2)-g(2)

Therefore, find f(2) and g(2) first before subtracting.

f(x)=-4x+15

Therefore,

f(2)=-4(2)+15\\f(2)=-8+15\\f(2)=7

Then find g(2)

g(x)=7x^3\\g(2)=7(2)^3\\g(2)=7(8)\\g(2)=56

Then put f(2) to subtract g(2)

f(2)-g(2)=7-56\\f(2)-g(2)=-49

Therefore, the answer is (f-g)(2) = -49.

4 0
3 years ago
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Suppose that a company has just purchased a new computer for $3200 The company chooses to depreciate using the straight-line met
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Option A is right answer that is write a linear function that expresses the book value of the computer as the function of its age. (slop-intercept form)
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3 years ago
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Solve y∕5.6 = 12 for y.
Masja [62]

Answer:

It is (A) y = 67.2

<em>Hope this helped ya :)</em>

8 0
3 years ago
If f(x)=x^2 - 3 and f(a)=46, what is the value of a? explain
dem82 [27]
You are trying to find what x to put into f(x) to get out 46. To do this, solve the following equation.
x^{2} -3 = 46
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x^2 =  \sqrt{49}
Therefore x = 7 or x = -7

-7, 7
8 0
3 years ago
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