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Nonamiya [84]
3 years ago
12

Question 10 of 10

Mathematics
1 answer:
wel3 years ago
3 0

Answer:

A. 60°

General Formulas and Concepts:

<u>Geometry</u>

  • Equilateral Triangle - All side lengths and angles are equal to each other

Step-by-step explanation:

From the picture given, we see that all the side lengths are 12. Therefore, we can conclude that triangle ABC is an equilateral triangle.

Therefore, m∠y must equal 60°.

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Setler [38]

Answer:

  V = (4/3)πr³

Step-by-step explanation:

The formula usually used to find the volume of a sphere is ...

  V=\dfrac{4}{3}\pi r^3

where r represents the radius of the sphere.

The actual math involved will depend on what information about the sphere you are given. If you are given the radius or diameter (twice the radius), then this formula will be directly useful.

4 0
3 years ago
Find the equation of the line perpendicular to the line x=9 that passes through the point (9,-1)
tia_tia [17]

Answer:

y = -1

Step-by-step explanation:

Notice that the line x = 9 is a vertical line, therefore a line perpendicular to it will be a horizontal line of the form y = constant number.

Since we want it to go through the point (9, -1), then we know that that y value needs to be "-1", and the equation of the line will be given by the expression:

y = -1

3 0
4 years ago
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Name four fractions whose values are between 1/4 and 3/4
Fed [463]

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ok don't panic it's organic

8 0
3 years ago
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Find the percentage change: The price was $60. Now it is $40.
lora16 [44]

Answer:

33.33%

Step-by-step explanation:

The percentage was a decrease.

Let the percent be x.

60 × (1 - x%) = 40

60 × (1 - x/100) = 40

1 - x/100 = 40/60

-x/100 = 40/60 - 1

-x/100 = -1/3

x/100 = 1/3

x = 1/3 × 100

x = 33.33333

5 0
4 years ago
My sister needs help with this please someone help her
olga2289 [7]

Answer:

1/5 ; 1.64

Step-by-step explanation:

Cara used 1.64 pints of blue paint or 1/5 of 8.2.

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