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erma4kov [3.2K]
3 years ago
10

PLS HELP ME ASAP FOR 8, 9, 10, and 11!!! (SHOW WORK!!! FOR ALL SHOW WORK!!!!! +LOTS OF POINTS!!

Mathematics
2 answers:
Hoochie [10]3 years ago
8 0
8. 4j -2j -5k +3k (combine like terms)

2j -2k 

B

9. -6m+4m +2n-3n
-2m-1n

D

10. ( 2x-1) + (3x-1) +(3x-1) 
2x+3x+3x -1-1-1
8x-3

D
Dovator [93]3 years ago
7 0
8. B   9. D   10. D  11A. -4r+2s-9

For all of them you just combine like terms, or in other words combine the sections that have the same variable.
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A bag holds 5 pounds of pet food. If Paul uses the 5 pounds of food to fill 6 plastic containers equally how much pet food will
serg [7]
Answer: 13 1/3 ounces

Explanation:
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5 0
3 years ago
Simplify (3w^2-7w+6)+(-5w^2+2w+1)
leva [86]

Answer:

-2w^2 - 5w + 7

Step-by-step explanation:

Just the values with the same powers of w

(3w^2-5w^2)+(-7w+2w)+(6+1)

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5 0
2 years ago
Help me asap please I need this now
Virty [35]

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5 0
2 years ago
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Find the value of x. Round your answer to the nearest tenth.
Crazy boy [7]
<h2>The value of x "option A) 12.5" is required answer.</h2>

Step-by-step explanation:

In given figure,

Base (b) = 11 and Angle = 28°

To find, the value of x = ?

We know that,

\cos A=\dfrac{b}{h}

Where, h is the hypotaneous = x

⇒ \cos 28=\dfrac{11}{x}

⇒ x=\dfrac{11}{\cos 28}

The value of \cos 28 = 0.8829

⇒ x = \dfrac{11}{0.8829}

⇒ x = 12.458

⇒ x ≈ 12.5

∴ The value of x ≈ 12.5

Thus, the value of x "option A) 12.5" is required answer.

7 0
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If my heart beats 2790 times every three quarters of an hour, what is your heart rate per minute?
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Your pulse is your heart rate, or the number of times your heart beats in one minute. Pulse rates vary from person to person. Your pulse is lower when you are at rest and increases when you exercise (more oxygen-rich blood is needed by the body when you exercise). Knowing how to take your pulse can help you evaluate your exercise program.

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2 years ago
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