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3 years ago

A television is measured by its diagonal. If the height of a 70 inch television is 42 inches, what is the width?

Mathematics

1 answer:

GrogVix [38]3 years ago

3 0

The width should be 56 inches.

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2+98635.984463-97.8÷75.6+347+2363743769= PLEASE HELP!!

kolbaska11 [484]

Answer:

122620.6908

Step-by-step explanation:

Just follow PEMDAS and it's not hard at all.

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2 years ago

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The average person blinks about 360 times in 30 minutes. About how many times does a person blink in 9 minutes?

PilotLPTM [1.2K]

360 blinks / 30 minutes = 12 blinks per minute

12 blinks per minute x 9 minutes = 108 blinks

Answer: 108

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2 years ago

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Even though the population standard deviation is unknown, an investigator uses z rather than the more appropriate t to test a hy

alexandr1967 [171]

Answer:

The true true level of significance of this test is more than 0.01.

Step-by-step explanation:

No standard deviation and we are told that the investigator still used z rather than the more appropriate t - distribution.

This method of using the z-distribution when standard deviation is unknown will definitely result in a smaller critical value and this in turn simply means that the p-value will be smaller than what it should really be.

Thus, it means the critical value is getting closer to the mean value than the way it should be.

Therefore, means that for a given significance of 0.01 and using the z-distribution under this no standard deviation situation, the true true level of significance of this test is more than 0.01.

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3 years ago

Regal theater in Tikahtnu sold 548 tickets to Moana on Sunday. A adult’s ticket was $6.50 while a child’s ticket was $3.50. In t

irga5000 [103]

Regal theater sold 321 adult tickets and 227 children tickets.

Step-by-step explanation:

Given,

Cost of each adult ticket = $6.50

Cost of each child's ticket = $3.50

Total tickets sold = 548

Total worth of sold tickets = $2881

Let,

x represent the number of adult tickets sold

y represent the number of child tickets sold

According to given statement;

x+y=548 Eqn 1

6.50x+3.50y=2881 Eqn 2

Multiplying Eqn 1 by 6.50

$6.50(x+y=548)\\6.50x+6.50y=3562\ \ \ Eqn\ 3$

Subtracting Eqn 2 from Eqn 3

$(6.50x+6.50y)-(6.50x-3.50y)=3562-2881\\6.50x+6.50y-6.50x-3.50y=681\\3y=681$

Dividing both sides by 3

$\frac{3y}{3}=\frac{681}{3}\\y=227$

Putting y=227 in Eqn 1

$x+227=548\\x=548-227\\x=321$

Regal theater sold 321 adult tickets and 227 children tickets.

Keywords: linear equation, elimination method

Learn more about elimination method at:

#LearnwithBrainly

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2 years ago

Over the summer, for every 14 okra seeds Dana planted, 9 grew into plants. If he planted 210 okra seeds, how many grew into plan

FromTheMoon [43]

135
Hope that's right

4 0

2 years ago