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3 years ago

G(x)=4x-7 find g(-9)

Mathematics

2 answers:

FinnZ [79.3K]3 years ago

8 0

Answer:

-43

hope it helps

Dvinal [7]3 years ago

8 0

Answer:

-43

Step-by-step explanation:

G(x) = 4x -7 so plug -9 in for x

G(-9) = 4(-9) -7

G(-9) = -36 -7 = -43

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Find the value of f(12) if f(x)=-2x+4

Contact [7]

Answer:

f(12) = - 20

Step-by-step explanation:

To evaluate f(12), substitute x = 12 into f(x), that is

f(12) = - 2(12) + 4 = - 24 + 4 = - 20

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2 years ago

IF A=[2,4] and B=[0,3] then BUA=?

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Answer:

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3 years ago

Equation of the line (0,1),(2,5),(3,7)

zalisa [80]

Simple...

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3 years ago

The heights of men in the United States are approximately normally distributed with mean 69.1 inches and standard deviation 2.9

Gre4nikov [31]

Answer:

Step-by-step explanation:

Let M be the heights of men in the United States and W be the heights of women in the United States

Given that M is N(69.1, 2.9) and W (63.7, 2.7)

For a husband and wife we have average height as

$\frac{x+y}{2}$ =Z (say)

$Mean =E(z) = \frac{1}{2} [E(M)+E(W)] = 66.4 inches$

Var (Z) = $Var (\frac{x+y}{2} )=\frac{1}{4}[Var(x)+ Var(y)+2 cov (x,y)]\\$

= $0.25[2.9^2+2.7^2+2*r*sx*sy]\\= 0.25(20.398)\\=5.0995$

Mean = 66.4" and std dev = 2.258

7 0

2 years ago

Simplify 2a - 2/3b - 4 1/2a - 1/6b

jek_recluse [69]

Hi,

Let me help you with this.

2a - 4 1/2a = -2.5a
- 2/3b - 1/6b = -0.67b - 0.167b = - 0.513b
Simplification: -2.5a - (- 0.513b)

Solution:
$2a - \frac{2}{3} - 4 \frac{1}{2}a - \frac{1}{6}b = 2a - 0.67b - 4.5a - 0.167b$
$2a - 4.5a = - 2.5a$
$0.67b - 0.167b = 0.513b$
$0.513b - ( - 2.5a) = 0.513b + 2.5a = 3.013ab$

Hope this helps.
r3t40

3 0

3 years ago