3 years ago

Which are solutions of the equation x2 – 16 = 0? Check all that apply.

Mathematics

2 answers:

san4es73 [151]3 years ago

4 0

Answer:

x=-4

x=4

Step-by-step explanation:

zavuch27 [327]3 years ago

4 0

Answer:

Answer is B and E , -4 and 4

Step-by-step explanation:

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Simplify the expression

MaRussiya [10]

11) 7 + -10+(4(5+-3)) = 7+-10+8=5

12) (12 +-10)+3x+-1(2x+4x), 12+-10x+3x+-2x+-4x = 12+-13x

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3 years ago

Read 2 more answers

What is?<br><img src="https://tex.z-dn.net/?f=%20%5Cfrac%7Bx%7D%7By%7D%20%20%2B%20x" id="TexFormula1" title=" \frac{x}{y} + x"

Fiesta28 [93]

Answer:

$\frac{x+xy}{y}$

Step-by-step explanation:

Given

$\frac{x}{y}$ + x

Multiply x by $\frac{y}{y}$ to create a common denominator

= $\frac{x}{y}$ + x × $\frac{y}{y}$

= $\frac{x}{y}$ + $\frac{xy}{y}$

= $\frac{x+xy}{y}$

7 0

3 years ago

If f x equals x -3 + g x equals 1 - x 2 - 9 find ( f og) (x and give any restrictions on its domain

evablogger [386]

$\begin{gathered} f(x)=x-3 \\ g(x)=\frac{1}{x^2-9} \\ (\text{fog)(x)}=\frac{1}{x^2-9}-3 \end{gathered}$

the denominator cannot be zero, because the division by zero is not defined, therefore:

$\begin{gathered} x^2-9=0 \\ \text{Solving for x:} \\ x^2=9 \\ \sqrt[]{x^2}=\sqrt[]{9} \\ x=\pm3 \end{gathered}$

Therefore the domain of (f o g)(x) is:

$D\colon(-\infty,-3)\cup(-3,3)\cup(3,\infty)$

3 0

1 year ago

PLEASE SOLVE IM IN A TEST!

guajiro [1.7K]

Answer:

just guess c its mostly right

Step-by-step explanation:

3 0

3 years ago

Solve and please show work all of the work pls i smol brain tysm

Luden [163]

Answer: x=-7

Step-by-step explanation: hope this help :)

4 0

2 years ago