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Aneli [31]
3 years ago
7

How many quarts of pure antifreeze must be added to 5 quarts of a 10 ​% antifreeze solution to obtain a 20 ​% antifreeze​ soluti

on?
Mathematics
1 answer:
Black_prince [1.1K]3 years ago
4 0
Hey let’s be friends
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Please answer this in two minutes
solniwko [45]

Answer:

30

Step-by-step explanation:

a^2 + b^2 = c^2

(8sqrt(3))^2 + b^2 = 16^2

64 * 3 + b^2 = 256

192 + b^2 = 256

b^2 = 64

b = 8

The ratio of the lengths of the sides of this triangle is

8 : 8sqrt(3) : 16

which reduces to

1 : sqrt(3) : 2

This is the ratio of the lengths of the sides of a 30-60-90 triangle.

m<W = 30 deg

5 0
3 years ago
What is the solution to the trigonometric inequality sin(x) &gt; cos(x) over the interval 0 ≤ x ≤ 2pi radians?
suter [353]

Answer:

A

Step-by-step explanation:

7 0
3 years ago
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BigorU [14]
30 I think because 6 12 18 24 30 and 10 20 30
6 0
3 years ago
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D/dx [tan^-1 (x)] find the derivative
Eva8 [605]
From my notes I’ve the derivative of arctan(x)= 1/(1+x^2)
7 0
3 years ago
There are 752 cal in 8 ounces of a certain ice cream how many calories are there in 2 pounds
Irina18 [472]
So, 8 ounces is equivalent to .5 pounds. Therefore, 32 ounces is equivalent to 2 pounds. Or, there are 4 8ounce measurements to get to 2 pounds.

752 calories * 4 = 3008 calories in 2 pounds of ice cream.
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