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3 years ago

Help please I need this for my homework

Mathematics

1 answer:

Leto [7]3 years ago

7 0

Answer:

15) diagonals are congruent in rectangles and squares; looks like a square

16) SW = 31

Step-by-step explanation:

since diagonals are congruent in rectangles then 'a+30' equals '2a+29'

a + 30 = 2a + 29

30 = a + 29

a = 1

SW = WU = TW = WV

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X 3x -9 +30 +24 =180

olga55 [171]

Answer:

MAMMAAAAAAA OOOooOOOoooOOO

Step-by-step explanation:

M A M M A A A A A A A O O O o o O O O o o o O O O

5 0

3 years ago

PLEASE ANSWER QUICK A manufacturing facility pays its employees an average wage of $4.50 an hour with a standard deviation of 50

evablogger [386]

Answer:

B.77.4%

Step-by-step explanation:

Mean wage (μ) = $4.50

Standard deviation (σ) = $0.50

For nay given salary X, the z-score is given by:

$z=\frac{X-\mu}{\sigma}$

For X = $3.75, the z-score is:

$z=\frac{3.75-4.50}{0.50}\\z=-1.5$

For X = $5.00, the z-score is:

$z=\frac{5.00-4.50}{0.50}\\z=1$

A z-score of -1.5 corresponds to the 6.68th percentile, while a score of 1 corresponds to the 84.13th percentile. Therefore, the percentage of workers getting paid between $3.75 and $5.00 an hour is:

$P=84.13-6.68\\P=77.45\%$

The answer is alternative B.77.4%

8 0

3 years ago

Michelin Tires would like to estimate the average tire life of its Latitude Tour tire in terms of howmany miles it lasts. Assume

VARVARA [1.3K]

Answer:

6 samples

Step-by-step explanation:

Given :

Sample size, = n

Standard deviation, = 6000

Margin of Error = 2000

Confidence interval, α = 95%

Zcritical at 95% = 1.96

n = (Zcritical * σ) / margin of error

n = (1.96 * 6000) /2000

n = 11760 / 2000

n = 5.88

n = 6 samples

6 0

3 years ago

In a survey of market, it is found that 143 persons use white toothpaste and 135 use red toothpaste. If 70 of them use both the

denpristay [2]

Answer:

let W and R represent white toothpaste and red toothpaste represently

n(W)=143

n(R)=135

n(WnR)=70

n( WuR)=?

Now,

n(WuR)=n(W)+n(R)_n(WnR)

=143+135_70

=208

that's all don't forget to write therefore.

6 0

3 years ago

C is between B and D <br> BC = 8x +13<br> CD= 12x -73<br> BD =320 <br> find the value of x

pentagon [3]

Answer:

...

Step-by-step explanation:

7 0

3 years ago

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