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N76 [4]
3 years ago
5

I dont know what a complementary angle is, can someone help me with this quistion please?

Mathematics
1 answer:
Allisa [31]3 years ago
8 0

Answer:

A, complementary angles sum up to 90°

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How do you do this? It's geometry
antiseptic1488 [7]
45.

12/18 = 8/x <=> 2/3 = 8/x <=> x = (3*8)/2 = 12;
7 0
3 years ago
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lianna [129]
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3 0
3 years ago
Find the Perimeter of the figure below, composed of a rectangle and two semicircles. Round to the nearest tenths place.
NISA [10]
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5 0
3 years ago
A chemical company makes two brands of antifreeze. The first brand is 45% pure antifreeze, and the second brand is 95% pure anti
Dimas [21]

Answer:

42 gallons 45% antifreeze

28 gallons 95% antifreeze

Step-by-step explanation:

If x is volume of 45% antifreeze, and y is volume of 95% antifreeze, then the total volume is:

x + y = 70

And the total amount of antifreeze is:

0.45 x + 0.95 y = 0.65 (70)

Solving by substitution:

0.45 x + 0.95 (70 − x) = 0.65 (70)

0.45 x + 66.5 − 0.95 x = 45.5

21 = 0.5 x

x = 42

y = 28

7 0
3 years ago
What is the simplified form of the expression?
AleksAgata [21]
 The answer is:  10 x¹³ y¹⁰  . 
__________________________________________________________

1x^8 *  2y^(10) * 5x^5 = 

1* 2* 5 * x^8 * x^5 * y^(10) = 

10 * x^(8+5) * y^(10) =

10 * x^(13) * y^(10) = 10 x^(13) y^10 ;  write as: 
_______________________________________________
          10 x¹³ y¹<span>⁰ .
<span>______________________________________________________</span></span>
6 0
3 years ago
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