3 years ago

What number must you add to complete the square? x2 + 8x = 15

Mathematics

1 answer:

Lisa [10]3 years ago

6 0

Is that x squared ?

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Give the domain and range of the relation. Indicate whether the relation is a function or not.

rewona [7]

D: {0, 1, 2, 3}

R: {−3, −2, 2, 5}

The relation is a function.

That's the answer.

4 0

2 years ago

2√m^2 if m is greater than or equal to 0

iris [78.8K]

Answer:

$\displaystyle \boxed{|2m| }$

Step-by-step explanation:

we are given that

$\displaystyle 2 \sqrt{ {m}^{2} }$

since m is greater than or equal to 0 it's a positive number therefore, the square root of m is defined and recall that √x²=|x| thus

$\displaystyle \boxed{2 |m|}$

remember that,|a|•|x|=|ax| hence,

$\displaystyle \boxed{ |2m|}$

and we're done!

3 0

3 years ago

Read 2 more answers

What is 9 7/8 as a pecent

JulsSmile [24]

9 and 7/8 as a precent is 0.875 or 87%

4 0

3 years ago

It’s x+8 at the bottom but if you solve this please give me a step by step so I know how to solve it, thank you!!♥️

OLga [1]

Answer:

x=4.

Step-by-step explanation:

Let's solve your equation step-by-step.

5/15=x/ x+8

Step 1: Cross-multiply.

5/15=x/ x+8

5*(x+8)=x*(15)

5x+40=15x

Step 2: Subtract 15x from both sides.

5x+40−15x=15x−15x

−10x+40=0

Step 3: Subtract 40 from both sides.

−10x+40−40=0−40

−10x=−40

Step 4: Divide both sides by -10.

−10x−10=−40−10

Then your answer will be x=4.

6 0

3 years ago

In the following figure, m∠A = 55° and the m∠ACE = 86° . What is the m∠E = ? Show your work.

Paladinen [302]

the answer is

<E=31°.............. ..

3 0

3 years ago