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leonid [27]
3 years ago
14

What is the measurement of N?A) 23° B) 45° C) 73° D) 81°

Mathematics
2 answers:
alina1380 [7]3 years ago
5 0

D) 81°

explanation:

90°-9° =81°

barxatty [35]3 years ago
5 0
The answer D) 81 so hope this helped =)
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How do you perform this: 2x+3y=25 3x+4y=22
meriva

Answer:

x = -34 , y = 31

Step-by-step explanation suing Gaussian elimination:

Solve the following system:

{2 x + 3 y = 25

3 x + 4 y = 22

Express the system in matrix form:

(2 | 3

3 | 4)(x

y) = (25

22)

Write the system in augmented matrix form and use Gaussian elimination:

(2 | 3 | 25

3 | 4 | 22)

Swap row 1 with row 2:

(3 | 4 | 22

2 | 3 | 25)

Subtract 2/3 × (row 1) from row 2:

(3 | 4 | 22

0 | 1/3 | 31/3)

Multiply row 2 by 3:

(3 | 4 | 22

0 | 1 | 31)

Subtract 4 × (row 2) from row 1:

(3 | 0 | -102

0 | 1 | 31)

Divide row 1 by 3:

(1 | 0 | -34

0 | 1 | 31)

Collect results:

Answer: {x = -34 , y = 31

6 0
3 years ago
A person is riding a Ferris wheel has a radius of 50ft. find the linear speed of the person in feet per minute if the Ferris whe
kifflom [539]

The linear speed of a person on this Ferris wheel is about 628.2 ft/min.

<h3>What is Linear Speed ?</h3>

As a body travels a circular path, it has both a linear speed and an angular speed. The rate it travels on that path is the linear speed, and the rate it turns around the center of that path is the angular speed. The linear speed (v) and angular speed (ω) are related by the radius (r) or v = rω .

Given that ;

Radius = r = 50 ft

Frequency = f = 2 rev/min

The angular speed is the product of the angular displacement for one complete turn, namely 2π radians per revolution, and the frequency (f). That is, the angular speed is equal to ω = 2πf. Substituting this into the formula for linear speed (v), we get:

                                v = r (2πf)

                                    = (50 ft) ( 2π / rev) ( 2 rev/min)

                                    = 200π ft/min

                                    ≈ 628.2 ft/min

The linear speed of a person on this Ferris wheel is about 628.2 ft/min.

Learn more about linear speed here ;

brainly.com/question/14413779

#SPJ1

.

4 0
11 months ago
Classify the following triangle.Check all that apply.
zysi [14]
Perhaps you can send a picture of the problem so I can help you?
6 0
3 years ago
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lawyer [7]
B or C i think. I dont know
4 0
3 years ago
PLEASE ANSWER QUICK THIS IS TIMED AND I WILL GIVE BRAINLIEST I PROMISE! The amount of money in an account may increase due to ri
Mumz [18]

Answer:

This was timed and posted awile ago but I don't have the answer either way.

Step-by-step explanation:

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3 years ago
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