2 years ago

Can someone tell me if this is correct or not my grades are bad

Mathematics

1 answer:

ASHA 777 [7]2 years ago

5 0

Answer:

Yep, that's correct!

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Find f(g(x)) and g(f(x)).<br> f(x)=x²-2 and g(x)=√x+1

Archy [21]

Answer:

1. x - 1

2. $\sqrt{x^2-1}$

Step-by-step explanation:

$f(g(x)) = \sqrt{x+1}^2 - 2\\ = x + 1 - 2\\= x - 1$

$g(f(x)) =\sqrt{x^2-2+1}\\ = \sqrt{x^2-1}$

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2 years ago

9 - 10x = 2x + 1 - 8x

Furkat [3]

Answer:

$x=2$

Step-by-step explanation:

$9 - 10x = 2x + 1 - 8x$

$9-10x=-6x+1$

Subtract 9 from both sides:

$9-10x-9=-6x+1-9$

$-10x=-6x-8$

Add 6x to both sides:

$-10x+6x=-6x-8+6x$

$-4x=-8$

Divide both sides by -4:

$\frac{-4x}{-4}=\frac{-8}{-4}$

$x=2$

8 0

3 years ago

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Y-x=-6 write an equation in slope intercept form. Give the y intercept of the line

mihalych1998 [28]

Slope intercept form: y=x-6

Y intercept: -6

Hope I helped!(:

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3 years ago

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A carpet in Frank's house has a length of 2 1/4 meters and a width of 1 1/5 meters. What is the perimeter of the carpet?

stich3 [128]

Answer:

4.5+2.4=6.9

Step-by-step explanation:

Fraction form: 69/10

6 0

3 years ago

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1/6d + 2/3 = 1/4(d-2)

xxMikexx [17]

D = 14

1/6d + 2/3 = 1/4d - 1/2
2d + 4*2 = 3d - 6
2d - 3d = -6-8
-d = -14
d = 14

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3 years ago