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OLEGan [10]
2 years ago
5

Help me This is khan academy so plz help

Mathematics
2 answers:
IrinaK [193]2 years ago
8 0

Answer:

C

Step-by-step explanation:

:)

fredd [130]2 years ago
7 0

Answer:

C

Step-by-step explanation:

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Zoom plz join you dont have to have video on tho
Lera25 [3.4K]

Answer:

Okay 9 + 10 = 21

Step-by-step explanation:

7 0
3 years ago
One number was divided by 2, followed by this quotient being multiplied by 4. next, the product was added to 9. the total sum wa
grin007 [14]

Answer:

Step-by-step explanation:

First, turn the word problem into an equation:

n(a number) was divided by 2

\frac{n}{2}

followed by this quotient beying multiplied by 4

\frac{n}{2}*4

the product was added to 9

\frac{n}{2}*4+9

the total sum was 25

\frac{n}{2}*4+9 = 25

use PEMDAS to solve the equation

subtract 9 on both sides

\frac{n}{2}*4 = 16

cancel the 2 and the 4 using factorization

n*2 = 16

divide 2 on both sides

n = 8

7 0
2 years ago
Using a reciprocal for <img src="https://tex.z-dn.net/?f=3%5Cfrac%7B3%7D%7B4%7D" id="TexFormula1" title="3\frac{3}{4}" alt="3\fr
Soloha48 [4]

Answer:

123/4

Step-by-step explanation:

3 3/4=15/4

Reciprocal of 15/4=-4/15

8 1/5 / 3 3/4

=41/5 / 15/4

= 123/4

I didn’t get the first part of the question that well but this is the answer for the question

8 0
2 years ago
What is (8 - i) + (5 + 7i)?<br> O (A) 3 - 8i<br> O (B) 8i - 3<br> O (C)-5i<br> O (D) 13 + 61
mars1129 [50]

Answer:

13 + 6i

Step-by-step explanation:

expand the brackets (basically drop them), then rearrange the numbers (8 + 5 + 7i - i) then you will get your answer.

8 0
2 years ago
Find the expression that represents the length of the hypotenuse of a right triangle whose legs measure 2x to the power of 2 - y
Irina-Kira [14]
First divide by 2 then excouleate by 1
3 0
3 years ago
Read 2 more answers
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