2 years ago

Solve each system by elimination 7x + 8y = -29 -3x -8y = 17

1 answer:

3 0

4x=-12
x= -3
Now that we know the value of x we plug that value into the first equation to solve for y
7(-3) +8y=-29
-21+8y= -29
8y=-8
y= -1

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GaryK [48]

Answer:

[-5, 4) ∪ (4, ∞)

Step-by-step explanation:

Given functions:

$f(x)=\dfrac{1}{x-3}$

$g(x)=\sqrt{x+5}$

Composite function:

$\begin{aligned}(f\:o\:g)(x)&=f[g(x)]\\ & =\dfrac{1}{\sqrt{x+5}-3} \end{aligned}$

Domain: input values (x-values)

For $(f\:o\:g)(x)$ to be defined:

$x+5\geq 0 \implies x\geq -5$

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Therefore, $-5\leq x < 4$ and $x > 4$

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2 years ago

What is 11.45 as a fraction

Viefleur [7K]

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6 0

3 years ago

Read 2 more answers

Evaluate the sine of angle X for the right triangle below.

bezimeni [28]

Answer:

$\frac{7}{25}$