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Trava [24]
2 years ago
14

Lenny has 21 green blocks the ratio of green blocks to yellow blocks she owns is 3:1 How many blocks does she own.

Mathematics
1 answer:
Lena [83]2 years ago
5 0

Answer:

28 blocks lol

Step-by-step explanation:

n f,s glrjbgwrfbskjdbfls/bjsdggwr

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2. The Geo Air pilot is looking at SCCA from the plane. From the aircraft the angle of depression is 17 degrees. If the plane is
lana66690 [7]

Answer:

The distance  from the plane to SCCA is 34,203.0 feet approximately,  and the horizontal distance is 32,708.5 feet approximately.

Step-by-step explanation:

You can draw a right triangle like the one shown in the figure attached, where:

x: horizontal distance.

y: distance from the plane to SCCA.

You can calculate x as following:

tan\alpha=\frac{opposit}{adjacent}

Where:

\alpha=17\°\\opposite=10,000\\adjacent=x

Substitute and solve for x:

tan(17\°)=\frac{10,000}{x}\\\\x=\frac{10,000}{tan(17\°)}\\\\x=32,708.5ft

You can calculate y as following:

sin\alpha=\frac{opposit}{hypotenuse}

Where:

\alpha=17\°\\opposite=10,000\\hypotenuse=y

Substitute and solve for y:

sin(17\°)=\frac{10,000}{y}\\\\y=\frac{10,000}{sin(17\°)}\\\\y=34,203.0ft

7 0
3 years ago
What is the negative reciprocal of 3/5
SSSSS [86.1K]

Answer:

-5/3

Step-by-step explanation:

To find the negative reciprocal

-1 /( number)

-1 ( 3/5)

-1 ÷ (3/5)

Copy dot flip

-1 * 5/3

-5/3

The negative reciprocal is -5/3

3 0
3 years ago
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Which unit of measure would be appropriate for the area of a picture that is 20 centimeters tall and 15 centimeters wide?
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Area= 300 cm squared
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Find the point on the terminal side of θ = -3 pi / 4 that has an x coordinate of -1
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3 years ago
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