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Mrrafil [7]
3 years ago
7

F(x)=x+7 g(x)=4x^2-9 h(x)=-2x+1 what is the value of f(g(2) and the value of g(f(-2))

Mathematics
1 answer:
katovenus [111]3 years ago
3 0

9514 1404 393

Answer:

  • f(g(2)) = 14
  • g(f(-2)) = 91

Step-by-step explanation:

g(2) = 4(2^2) -9 = 4(4) -9 = 7

f(7) = 7+7 = 14

f(g(2)) = 14

__

f(-2) = -2 +7 = 5

g(5) = 4(5^2) -9 = 4(25) -9 = 91

g(f(-2)) = 91

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In the given diagram , TY is a tangent to the circle TVS . If <SVT = 48° and |VS| = |ST| . What is < VTY.​
ycow [4]

Answer:

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Step-by-step explanation:

∠VTY is the tangent chord angle

  • Tangent chord angle is the half of the intercepted arc

∠TSV is the inscribed angle.

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<u>Since both of the mentioned angles refer to same arc, they are of same value.</u>

  • ∠VTY = ∠TSV

ΔTVS is isosceles as VS = ST, therefore the opposite angles are same.

  • m∠T = m∠V = 48°

<u>The measure of angle S</u>

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4 0
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Clare is paid $90 for 5 hours of work. At thos rate how many seconds does i take for her to earn 25 cents?
natka813 [3]

We are given

Clare is paid $90 for 5 hours of work

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rate of work = ( total money paid)/( total hours of work)

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and we get

The rate of work is

=\frac{90}{5}

=18 $/ hour

now, we have to find time for amount paid is 25 cents

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100 cents =1$

so, amount paid =$ 0.25

Since, the rate is constant

so, we can take same rate here

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now, we can plug values

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now, we can solve for T

T=\frac{0.25}{18} hour

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1 hour =3600seconds

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T=\frac{0.25}{18}\times 3600 seconds

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3 years ago
Solve using Substitution<br> y = -1x - 5<br> 4x - 8y = 4
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Answers:

Step-by-step explanations:

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3 years ago
Find the value of x. If​ necessary, write your answer in simplest radical form. 30 x 25 x nothing ​(Simplify your answer. Type a
murzikaleks [220]

Answer:

x = 38.05

Step-by-step explanation:

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