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Grace [21]
2 years ago
7

Solve for (5k-10) times -9

Mathematics
1 answer:
erma4kov [3.2K]2 years ago
7 0

Use distributive property here:

5k(-9) = -45k

(-10)(-9) = 90

-45k + 90

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Find the diameter and of each circle. A) circumference = 118mm B) circumference = 1m
kotegsom [21]
Okay so the formula for circumference is

C=(pi)(D)
or
C=(pi)(2)(r)

But since they gave us the diameter we are gonna have to use the first formula.

Now I don’t know if they want u to use 3.14 for pi or the actual number, so i’m gonna assume we are using the actual formula.

So the formula to be able to find the diameter of circle A is going to be:
118/pi.
So put that into your calculator and you get 37.5605mm or 37.56mm.
It depends on what place your instructor wants you to round to.

The formula for circle B is going to be:
1/pi.
So let us put that into our calculator and you get 0.318309mm etc. Or just 0.3183.

I believe that I am correct but if i’m not please correct me.
4 0
3 years ago
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OLEGan [10]

Answer:

x=9

Step-by-step explanation:

<B = <E  from the concurrency statement

5x = 45

Divide by 5

5x/5 = 45/5

x = 9

6 0
3 years ago
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Luis wants to buy a skateboard that usually sells for $79.70. All merchandise is discounted by 12%. What is the total cost of th
stira [4]

Answer:

$64.36

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I hope this helps.

8 0
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dimaraw [331]
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so 5 times 2x-3

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