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UkoKoshka [18]
2 years ago
7

How many triangles can be formed with the angle measures: 20, 70, and 90 degrees?

Mathematics
1 answer:
sveta [45]2 years ago
6 0

Answer:

A right triangle with degrees 20, 70, 90.

Step-by-step explanation:

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What is the length of PR<br><br><br><br> MARKING BRAINLIST
denpristay [2]

In the above figure, the Angles P and Q are equal, so their opposite sides will be equal too.

i.e. 5n = 32 + n

now, let's solve for n :

  • 5n = n + 32

  • 5n - n = 32

  • 4n = 32

  • n = 32 ÷ 4

  • n = 8 units

Length of PR :

  • 5n

  • 5 × 8

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4 0
3 years ago
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Angela is taping 7 boxes for storage. She uses 1 1/2 feet of tape to close each box how much tape will Angela need to tape the b
Mrrafil [7]

Answer:

B. 10 1/2 feet

Step-by-step explanation:

We are told that she taped 7 boxes.

We are also told that she uses 1 1/2 feet of tape to close each box.

Therefore, the length of tape she will need to use for the 7 boxes will be the product of 7 boxes and 1 1/2 feet of tape per box:

L = 1 1/2 * 7 = 3/2 * 7 = 21/2 = 10 1/2 feet.

She will need to use 10 1/2 feet of tape.

5 0
3 years ago
A fruit bowl contains apples, oranges, and bananas. The radius of one of the oranges is 1.25 inches. What is the approximate vol
Elden [556K]

Answer:

8.18 cubic inches

Step-by-step explanation:

An orange is a sphere so you will use the formula for the volume of a sphere.

V= 4 /3 * π * r^3       r^3= 1.25* 1.25 * 1.25= 1.953

V= 4/3* 3.14 * 1.953 = 8.176=8.18

3 0
3 years ago
A ballplayer catches a ball 3.4s after throwing it vertically upward. with what speed did he throw it, and what height did it re
Daniel [21]

From the equation of motion, we know,

s=ut+\frac{1}{2}at^{2}

Where s= displacement

u= initial velocity

a= gravitational force

t= time

Displacement is 0 since the ball comes back to the same point from where it was thrown.  

A = -9.8m/s^{2} since the ball is thrown upwards.

Plug the known values into the equation.

=> 0=u\left ( 3.4 \right )+\frac{1}{2}\left ( -9.81 \right )(3.4^{2})

Solving for u gives :

u= 16.67 m/ sec ....... equation (1)

At maximum height, final velocity i.e v is 0

Time take to reach the top = \frac{3.4}{2} = 1.7 sec

v^{2}=u^{2}+2as

=> 0=(16.67)^{2}+2(-9.81)(s)

Solving for s we get

s= 14.16 m


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It was 6 miles long.
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