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4 years ago

Please help me need help ASAP don’t know how to solve

Mathematics

1 answer:

salantis [7]4 years ago

3 0

Using the triangle similarity postulates, you can verify that

$\cfrac{12}{y}=\cfrac{y}{4}\\ \\ \Rightarrow y^2=48\\ \\ \Rightarrow y=\sqrt{48}=4\sqrt{3}$

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What is this plz answer

Anna11 [10]

$25.2 \div 4 = 6.3$
$5.69 \div 7 = 0.813$
$22.5 \div 15 = 1.5$

6 0

3 years ago

Read 2 more answers

What is the equation? Please help.

Ludmilka [50]

Only 5 points sheeeeesh

5 0

3 years ago

The _____ of a line is y=mx+b. The variable m in the equation stands for the _____. The variable b in the equation stands for th

baherus [9]

Answer:

The answers in order are:

slope-intercept form

slope of a line

y-intercept

Step-by-step explanation:

These are the definitions of the terms.

y=mx+b is called slope-intercept form because it contains the slope (m) and y-intercept (b)

slope of a line is change in y over change in x (steepness) which is m

y-intercept is point line intercepts y-axis and is b

6 0

3 years ago

If you deposit $14,000 in an account that pays 7.47% annual interest compounded continuously. Remember A=Pe^rt.

iren [92.7K]

Answer: After 1 year = $15085.85168

After 5 years = $20339.34789

After 10 years = $29549.21947

After 25 years = $90609.34284

Step-by-step explanation:

14000e^.0747 (however many years)

3 0

4 years ago

Read 2 more answers

The manufacturer of the ColorSmart-5000 television set claims 95 percent of its sets last at least five years without needing a

Leya [2.2K]

Answer: (0.665 , 0.777)

Step-by-step explanation:

Given : Sample size of consumers: n=420 ;

Number of consumers say their ColorSmart-5000 television sets did not need a repair=303

The the sample proportion for consumers say their ColorSmart-5000 television sets did not need a repair : $\hat{p}=\dfrac{303}{420}\approx0.721$

Significance level : $\alpha:1-0.99=0.01$

Critical value = $z_{\alpha/2}=\pm2.576$

The confidence interval for population proportion is given by :_

$\hat{p}\pm z_{\alpha/2}\sqrt{\dfrac{p(1-p)}{n}}$

i.e. $0.721\pm (2.576)\sqrt{\dfrac{0.721(1-0.721)}{420}}$

$\approx0.721\pm 0.056=(0.721-0.056,0.721+0.056)\\\\=(0.665\ ,\ 0.777)$

Hence, a 99 percent confidence interval for the proportion of all ColorSmart-5000 television sets that have lasted at least five years without needing a single repair = (0.665 , 0.777)

7 0

3 years ago