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Fittoniya [83]
4 years ago
10

What is the reference angle for 120°? A. 30° B. 45° C. 60° D. 120° E. 240°

Mathematics
1 answer:
dusya [7]4 years ago
4 0

Answer:

C

Step-by-step explanation:

120° is an angle in the second quadrant.

The reference angle is the related acute angle in the first quadrant, that is

reference angle = 180° - 120° = 60° → C

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The ratio of girls to boys is 5 to 6. If there are 72 boys, how many girls are there?
kati45 [8]
Answer: 60 girls
If the ratio of girls to boys is 5 to 6, it can be written as 5/6. You can use cross multiplication to figure out how many girls there are if there are 72 boys by setting the number of girls equal to x and dividing it by 72 like so: \frac{5}{6}= \frac{x}{72}

After multiplying 5 and 72, and 6 and x, you get the equation 360=6x. To find the number of girls, all you have to do is divide by 6, which leaves you with x=60, meaning there are 60 girls when there are 72 boys based on the ratio 5:6 (girls to boys).
5 0
3 years ago
Write each expression as a difference.<br> a+5
SCORPION-xisa [38]

The equivalent expression of a + 5 is -(-a - 5)

<h3>How to rewrite the expression?</h3>

The expression is given as:

a + 5

Multiply by 1

1 * (a + 5)

Express 1 as -1 * -1

-1 * -1 * (a + 5)

Open the bracket

-1 * (-a - 5)

This gives

-(-a - 5)

Hence, the equivalent expression of a + 5 is -(-a - 5)

Read more about equivalent expression at:

brainly.com/question/2972832

#SPJ1

8 0
2 years ago
A square with an area of 64 in2 is rotated to form a cylinder. What is the radius of the cylinder?
romanna [79]
The area of the square is calculated through the equation,

                               Area = e²

where e is the measure of sides.
 
From the given,

                              64 = e²
                               e = sqrt 64 = 8 inches

The length of the side of the square rotated to form the cylinder is the diameter of the base of the cylinder. To get the radius, we divide the diameter by 2.

                             radius = 8 inches / 2 = 4 inches

Thus, the radius of the cylinder is equal to <em>4 inches</em>. 
5 0
4 years ago
The chances of winning the Maryland lottery are one chance in twenty-two million. The probability would be considered an example
emmasim [6.3K]

Answer:

Descriptive statistics

Step-by-step explanation:

The chances of winning the Maryland lottery are one chance in twenty-two million. The probability would be considered an example of Descriptive statistics

Descriptive statistics is referred to as the process of using a descriptive statistic. A descriptive statistic contains the quantitative summary from a sample data or information.The chances of winning the Maryland lottery are one chance in twenty-two million is an example.

6 0
3 years ago
What percent of the muffins were carrots
Readme [11.4K]

Answer:

0%

Step-by-step explanation:

Muffins aren't carrots, unless they are carrot muffins.

6 0
3 years ago
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