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2 years ago

PLEASE HURRY I WILL MARK AS BRAINLIEST!!!!!

2 answers:

7 0

D is the answer because in order to figure out how far they rode, you have to take the number of hours times the speed. then in order to find the difference you subtract.

Gre4nikov [31]2 years ago

4 0

D. is the answer

random words to fill the 20 word count

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Please answer the question from the attachment.

Shalnov [3]

I think its -5 so 5 - 10 = -5

3 0

2 years ago

If the life in years of a television set is normally distributed with a mean of 36 years and a standard deviation of 8 years wha

TiliK225 [7]

Answer:

The company should guarantee a lifetime of less than equal to 20.95 years so that less than 3% of the television sets fail while under warranty.

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 36 years

Standard Deviation, σ = 8 years

We are given that the distribution of life of television sets is a bell shaped distribution that is a normal distribution.

Formula:

$z_{score} = \displaystyle\frac{x-\mu}{\sigma}$

We have to find the value of x such that the probability is 0.03.

$P( X < x) = P( z < \displaystyle\frac{x - 36}{8})=0.03$

Calculation the value from standard normal z table, we have,

$\displaystyle\frac{x - 36}{8} =-1.881\\\\x = 20.952\approx 20.95$

Thus, the company should guarantee a lifetime of less than or equal to 20.95 years so that less than 3% of the television sets fail while under warranty.

3 0

2 years ago

The value of y is directly proportional to the value of x when x=512 y=128 what is the value of y when x=64

luda_lava [24]

Answer: y=16
explanation: y=128 when x=512, so to get the value of y, you need to divide 512/64=8. dividing 512(x) by 8 times gets 64, so you need to divide 8 on the other side(y). 128/8=16. hope this helped!

3 0

1 year ago

A 3 inch by 5 inch photograph is enlarged so that the longer side is 15 inches.

valentina_108 [34]

Answer:

the length of shorter side is 9 inches.

longer side is enlarged 3times

so shorter side will also be enlarged 3 times.

5 0

2 years ago

Find the ratio of the area inside the square but outside the circle to the area of the square

alexandr402 [8]

Area of the square: A s = s².
Area of the circle: A c = ( 1/2 s )² π = 1/4 s² · 3.14 = 0.785 s²
Area inside the square but outside the circle: s² - 0.785 s² = 0.215 s²
The ratio:
0.215 s² : s² = 0.215 : 1 = 215 : 1000 = 43 : 200 .

4 0

2 years ago

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