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3 years ago

$45.50 MP3 player; 7% tax

Mathematics

1 answer:

navik [9.2K]3 years ago

8 0

Answer:

$ 48.69

Step-by-step explanation:

Hope this helps give me some stars and a Thank you if its correct!

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Radical expressions Help pls multiple choice

Ann [662]

Answer:

4th option (sqrt(10))/2

Step-by-step explanation:

$\frac{5}{\sqrt{10} } * \frac{\sqrt{10}}{\sqrt{10} } \\ \frac{5\sqrt{10}}{10} \\\\frac{\sqrt{10}}{2}$

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3 years ago

A man is lying on the beach, flying a kite. He holds the end of the kite string at ground level and estimates the angle of eleva

Ulleksa [173]

This question uses trig

sin(55) = height/195

Therefore, height = 195sin(55) meters (just plug in calculator)

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2 years ago

Select the correct answer. Which of the following is a solution to ? A. B. C. D. E.

Leni [432]

Answer:

the answer to your question is A

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3 years ago

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A recipe for sparkling grape juice calls for 1.5 quarts of sparkling water and .75 quart of grape juice. A. How much sparkling w

cluponka [151]

Answer: We need to mix 18 quarts of sparkling water with 9 quarts of grape juice.

We need to mix 1.875 quarts of grape juice with 3.75 quarts of sparkling water.

Step-by-step explanation:

Given: A recipe for sparkling grape juice calls for 1.5 quarts of sparkling water and .75 quart of grape juice.

Since, for recipe of sparkling grape juice , they should be used in same proportion.

Let x be the amount of sparkling water need to mix with 9 quarts of grape juice, then

$\frac{x}{9}=\frac{1.5}{0.75}\\\Rightarrow\ x=\frac{1.5\times9}{0.75}\\\Rightarrow\ x=18$

We need to mix 18 quarts of sparkling water with 9 quarts of grape juice.

Let y be the amount of grape juice need to mix with 3.75 quarts of sparkling water, then

$\frac{3.75}{y}=\frac{1.5}{0.75}\\\Rightarrow\ y=\frac{3.75\times0.75}{1.5}\\\Rightarrow\ y=1.875$

We need to mix 1.875 quarts of grape juice with 3.75 quarts of sparkling water.

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3 years ago

How to find cos2theta

SSSSS [86.1K]

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3 years ago

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