MATHEMATICS HIGH SCHOOL

Find the additive inverse of each number
1.) 3-7i
2.) -2 + i

Answers

Answer 1
Answer: The\ additive\ inverse\ of\ a\ is\ -a.\n\n1)\nthe\ additive\ inverse\ of\ 3-7i is\ -(3-7i)=-3+7i\n\n2)\nthe\ additive\ inverse\ of\ -2+i is\ -(-2+i)=2-i

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Which expressions have a value of 18? Choose all answers that are correct. A. –3 – 21 B. 7 – (–25) C. 34 – 16 D. –4 – (–22)

What is the solution to the equation -(5-(a+1))=9-(5-(2a-3))

Answers

Answer:

a)-5

Step-by-step explanation:

-(5-(a+1))=9-(5-(2a-3))

=    -(5-a-1)= 9-(5-2a+3)

=    -5+a+1 = 9-5+2a-3

=     -4+a = 1+2a

=     -4 - 1 = 2a-a

=     -5 = a
Step 1: Simplify both sides of the equation.
−(5−(a+1))=9−(5−(2a−3))
−(5−(a+1))=9+−1(5−(2a−3))(Distribute the Negative Sign)−(5−(a+1))=9+(−1)(5)+−1(−2a)+(−1)(3)−(5−(a+1))=9+−5+2a+−3a+−4=9+−5+2a+−3(Distribute)a−4=(2a)+(9+−5+−3)(Combine Like Terms)a−4=2a+1a−4=2a+1Step 2: Subtract 2a from both sides.a−4−2a=2a+1−2a−a−4=1Step 3: Add 4 to both sides.−a−4+4=1+4−a=5Step 4: Divide both sides by -1.−a−1=5−1a=−5

Lily has 3 dog toys that are red. one fourth of all her dog toys are red. how many dog toys does lily have? first draw _ circles to show _ equal parts.

Answers

so she has 12 dogs toys because if she has three dogs and they are a fourth of the total you can just multiply 3 four times.

do you get it?

i hope i helped

Answer:

Step-by-step explanation:

Given f(x)=x^2+3 and g(x)=x+5/x. Find (g o f)(4)

Answers

To find g(f(4)), work from the inside out.

f(4) is 4^2+3, or 16+3, or 19.  Now, we must find g(19).

This is 19+5/19.  This is already a mixed number, though if you want an improper fraction solution, we have:

361/19+5/19

Which simplifies to:

366/19

Therefore, 366/19 is the answer.

Represent the following sentence as an algebraic expression, where "a number" is the letter x. The product of 8 and a number.​

Answers

Answer:

x times 8 I'm pretty sure

The letter of application is intended to

Answers

Letter of application is intended to land in your desired job or institute. Letter of application is a letter written to the institutions that a person wanted to be in. This will be tend the basis of the impression of the receiver, or the interviewers.

What is the value of x that makes the given equation true? ​2(x−8)=x+5x

Answers

First simplify the right side by combining like terms.

Since both terms contain an x, you can add them together.

So x + 5x simplifies to 6x.

So our equation now reads 2(x - 8) = 6x.

Solving from here, distribute the 2 through the

parentheses on the left side of the equation.

2(x) is 2x and 2(-8) is -16.

So we have 2x - 16 = 6x.

Now move the 2x to the right side by subtracting 2x from both sides.

This gives us -16 = 4x.

Now just divide both sides by 4 to get -4 = x.

Answer:

x = -4

Step-by-step explanation:

To find the value of x that makes a certain equation true means to solve the equation. You do this by rearranging the equation to make x the subject.

So,

2(x-8) = x+5x

2x - 16 = 6x

-16 = 6x-2x

4x = -16

x = -4

Hope this helps.
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