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vodomira [7]
3 years ago
11

Pls awnser this I need it

Mathematics
1 answer:
Lisa [10]3 years ago
4 0

Answer:

-2k + 6

hope its right

-2k - (-5) + 1                    

You should always switch the signs to their opposites if you're mutiplying a negative such as the - (-5)     Hope I make sense

-2k + 5 + 1

-2k + 6

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What is the measure of c?<br> a = 15<br> j = 24<br> k = 32
inessss [21]

Answer:

The answer to your question is c = 20

Step-by-step explanation:

Data

a = 15

j = 24

k = 32

c = ?

Process

Use proportions to solve this problem. Compare the small triangle and the large triangle.

1.- Proportion of the small triangle

             c/15

2.- Proportion of the large triangle

            k/j

3.- Equal but terms and solve for c

            c/15 = k/j

-Substitution

            c / 15 = 32/24

            c = 32(15)/24

-Result

            c = 20

       

4 0
4 years ago
Find the radius of a circle with a circumference of 45pi centimeters
JulsSmile [24]

Answer:

<h2>The radius r = 22.5 cm</h2>

Step-by-step explanation:

The formula of a circumference of a circle:

C=2\pi r

r - radius

We have the circumference

C=45\pi\ cm

Substitute:

2\pi r=45\pi               <em>divide both sides by π</em>

2r=45        <em>dvide both sides by 2</em>

r=22.5\ cm

8 0
4 years ago
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