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mamaluj [8]
2 years ago
6

What’s the simplified principal square root of -36

Mathematics
1 answer:
Musya8 [376]2 years ago
3 0

Answer:

6

Step-by-step explanation:

because 36 is a perfect square root.

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3 years ago
a teacher had 21 red pens. if the ratio of red pens to blue pens she owned was 3:1 , how many pens did she have in total
erma4kov [3.2K]
There are 21 red pens. For every 3 red pens, there is 1 blue pen.
Let's make these into a fraction equation.
21/p=3/1
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First, cross multiply.
21x1=21
px3=3p
Now, we have an equation of
21÷3p
We set it equal to 1, and we solve it.
21÷3p = 1
(21÷3p)×3p=1×3p
21=3p
21÷3=(3p)÷3
7=p
So, if there are 21 red pens, there are 7 blue pens.
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5 0
2 years ago
Read 2 more answers
What is the value of x?
hram777 [196]
Sum of angles of a triangle = 180°

91 + 10x - 4 + 8x +3 = 180
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18x = 90
x = 5°
6 0
3 years ago
Read 2 more answers
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