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vagabundo [1.1K]
2 years ago
9

Evaluate -4x +9 for x=8

Mathematics
2 answers:
larisa [96]2 years ago
7 0

Answer:

-23

Step-by-step explanation:

- 4 ( 8 ) + 9

- 32 + 9

- 23

alexgriva [62]2 years ago
3 0

Answer:

- 23

Step-by-step explanation:

Step 1:

- 4x + 9         Equation

Step 2:

- 4 ( 8 ) + 9        Input x value

Step 3:

- 32 + 9       Multiply

Answer:

- 23       Add

Hope This Helps :)

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I will give brainliest if you answer this question !!!
yanalaym [24]

Answer:

A) 2

Step-by-step explanation:

Start off with the given information. The question states that the x-int. is 4, so you should recognize that there is a point at (4,0). Plug the point into the equation.

k(4) + 2(0) + 8 = 0

Now simplify the equation.

4k + 0 + 8 = 0

Isolate the variable, make sure it's on its own side.

4k = 8

Now get the k by itself to solve the equation. Divide both sides by 4.

k = 2

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3 years ago
Math help please Let f(x)=x2+5 and g (x)=3x+4; find (g o f)(7); (g o f)(7)=; help me solve!! Please!
lorasvet [3.4K]

f(x) = 2x

g(x) = x + 3

First let us find (fog)(x)

<span />

(fog)(x) = f(g(x)

             = f(x+3)

               = 2(x+3)

               = 2x + 6

==> (fog)(x) = 2x + 6

Now let us find (gof)(x):

(gof)(x) = g(f(x)

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3 years ago
A square based prism and a cylinder both have
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Answer:

Parameter of base = 70.88 inch (Approx.)

Step-by-step explanation:

Given:

Volume of cylinder = 3768 cubic inch

Height of Prism = 12 inch

Find;

Parameter of base

Computation:

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3768 = (L)(B)(H)

3768 = (L)(B)(12)

(L)(B) = 314

L = B

So.

L = 17.72 inch

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Parameter of base = 2[l+b]

Parameter of base = 2[17.72 + 17.72]

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8 0
2 years ago
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