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forsale [732]
3 years ago
10

A certain television is advertised as a 34-inch TV (the diagonal length). If the width of the TV is 30 inches, how many inches t

all is the TV?
Mathematics
2 answers:
andreev551 [17]3 years ago
4 0

Answer:

TV is 16 inches tall.

Step-by-step explanation:

Given Data:

Width of TV = w = 30 inches

Diagonal length of TV = d =  34 inches

To Find out:

height of TV = h = ?

Formula:

According to Pythagoras's theorem.

d^{2} = h^{2} + w^{2}

h^{2} = d^{2} - w^{2}

Solution:

h^{2} = d^{2} - w^{2}

h^{2} = 34^{2} -30 ^{2}

h^{2} = 1156 -900

h^{2} = 256

h = \sqrt{256}

h = 16 inches

Hence TV is 16 inches tall.

mezya [45]3 years ago
3 0

Answer: 16

Step-by-step explanation:

I took it on delta math

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The American Psychological Associated conducted a survey in 2003 of psychologists to estimate the average incomes for psychologi
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This question is incomplete, the complete question;

The American Psychological Associated conducted a survey in 2003 of psychologists to estimate the average incomes for psychologists based on their academic degree and years of experience. 36 psychologists responded who had a just received their masters degree in 2003. The average was $48,800 with a standard deviation of $16,800.

The 95% Confidence Interval is ($, $ )

Answer:

at 95%, confidence interval is ( $43312, $54288 )

Step-by-step explanation:

Given the data in the question;

sample size n = 36

mean x' = 48,800

standard deviation σ = 16,800

at 95% confidence level;

∝ = 1 - 95% = 1 - 0.95 = 0.05

∝/2 = 0.05 / 2 = 0.025

z critical value, Z_{\alpha/2 = 1.96

now, confidence interval for population mean is given by the formula

x' ±  Z_{\alpha/2( σ/√n )

so we substitute

⇒ 48800 ±  1.96( 16800/√36 )

⇒ 48800 ±  1.96( 2800 )

⇒ 48800 ±  5488

⇒ 48800 -  5488, 48800 +  5488

⇒ ( 43312, 54288 )

Therefore, at 95%, confidence interval is ( $43312, $54288 )

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3 years ago
Graph the image of H(-8,5) after a reflection over the x-axis.<br><br> Answer ?
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Answer: plot a point at (-8, -5)

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For a popular Broadway musical, the theater box office sold 356 tickets at $80 apiece, 275 tickets at $60 apiece, and 369 ticket
Stella [2.4K]
For 356 ticket, each ticket is $80, so all of those tickets cost 356 × 80 = $28,480.
For 275 ticket, each ticket is $60, so all of those tickets cost 275 × 60 = $16,500.
For 369 ticket, each ticket is $45, so all of those tickets cost 369 × 45 = $16,605.

For all of the tickets the box office took in you have to do:
28,480 + 16,500 + 16,605 = 61,585

<u>The answer is $61,585.</u>
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