2 years ago

I need some help doing this

Mathematics

1 answer:

wolverine [178]2 years ago

8 0

Are there certain numbers you have to use in the table?

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A large jar contains 1380 coins. The result of 40 coins pulled at random from the jar is given below.

vredina [299]

Answer:IS B OR D BUT I SAY D

Step-by-step explanation:

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3 years ago

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At the market, 777 apples cost \$4.55$4.55dollar sign, 4, point, 55. how much do 999 apples cost? \$

vredina [299]

I divided $.55 by 777 and got 0.00585 cents per apple. Then I mulitplied 0.00585 by 999 and got $5.85.

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3 years ago

An equation with an exponent is called an exponential equation. True False

lyudmila [28]

Answer:

true

Step-by-step explanation:

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3 years ago

What is the value of x in this figure?

crimeas [40]

Answer:

26°

Step-by-step explanation:

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3 years ago

An engineer is going to redesign an ejection seat for an airplane. the seat was designed for pilots weighing between 130lb and 1

Vlad [161]

Answer: 0.4758

Step-by-step explanation:

Given : Mean : $\mu=137\text{ lb}$

Standard deviation : $\sigma =28.9\text{ lb}$

Also, the new population of pilots has normally distributed .

The formula to calculate the z-score :-

$z=\dfrac{x-\mu}{\sigma}$

For x=130 lb .

$z=\dfrac{130-137}{28.9}=-0.2422145\approx-0.24$

For x=171lb.

$z=\dfrac{171-137}{28.9}=1.1764705\approx1.18$

The p-value = $P(-0.24$

$=0.8809999-0.4051651=0.4758348\approx0.4758348\approx0.4758$

Hence, the required probability : 0.4758

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3 years ago