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horsena [70]
3 years ago
5

Answer: find the value of 4v-3 given that -5v-2=3. Simplify your answer as much a possible.

Mathematics
1 answer:
natulia [17]3 years ago
3 0

First you find the value of v, using the equation -5v - 2 = 3. You can't do anything with 4v - 3 yet because it doesn't have a value, an equal sign.

-5v - 2 = 3

Simplify by isolating the variable v in one side of the equation and the value in the other

Add 2 to both sides to shift -2 to the other side

-5v - 2 + 2 = 3 + 2

-5v = 5

Divide both aides by -5

-5v ÷ (- 5 ) = 5 ÷ (-5)

v = -1

Now you got the value of v

Plug v = -1 into 4v - 3

4×(-1) - 3

-4 - 3 = 7

4v - 3 = -7

Hope it helps :)

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-5x+y=-4 in function form
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Simplify the following expression:<br> 4x - 3y + 2z - 3x - y + 3z = ?
nordsb [41]
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3 years ago
Which equation represents a proportional relationship?
iren2701 [21]
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5 0
4 years ago
1) f(x) = 2x + 4, g(x) = 4x2 + 1; Find (g ∘ f)(0).
Sholpan [36]

Answer:

<h2>(g \: \circ \: f)(0) = 17</h2>

Step-by-step explanation:

f(x) = 2x + 4

g(x) = 4x² + 1

In order to find (g ∘ f)(0) we must first find

(g ° f )(x)

To find (g ° f )(x) substitute f(x) into g(x) that's for every x in g(x) replace it with f(x)

That's

<h3>(g \: \circ \: f)(x) = 4( ({2x + 4})^{2} ) + 1 \\  = 4(4 {x}^{2}  + 16x + 16) + 1 \\  =  {16x}^{2}  + 64x + 16 + 1</h3>

We have

<h3>(g \: \circ \: f)(x) =  {16x}^{2}  + 64x + 17 \\</h3>

Now to find (g ∘ f)(0) substitute the value of x that's 0 into (g ∘ f)(0)

We have

<h3>(g \: \circ \: f)(0) = 16( {0})^{2}  + 64(0) + 17 \\</h3>

We have the final answer as

<h3>(g \: \circ \: f)(0) = 17</h3>

Hope this helps you

8 0
4 years ago
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