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2 years ago

An elevator starts at the 6th floor. It goes up 7 floors twice, and then it goes

Mathematics

2 answers:

seraphim [82]2 years ago

4 0

The second

6+(7×2)-10 = 10
20-(5×3)+12 = 17

kodGreya [7K]2 years ago

3 0

The first elevator starts at 6th floor, and it goes up 7 floor twice, so it's going to be 6+2 x 7=6+14=20

The second elevator starts at 20th, it goes down 5 floor 3 times, then goes up 12 floor, so it's going to be 20-3 x 5+12=20-15+12=5+12=17.

20>17 so it's the first elevator.

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Usimov [2.4K]

From the given graph, the image is a trapezoid.
Therefore,
The first option, "the polygon is a rectangle" is incorrect.
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Third option" Opposite sides of the polygon are parallel", this can't be true as well because only two sides are parallel.
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2 years ago

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Thirty-two percent of fish in a large lake are bass. Imagine scooping out a simple random sample of 15 fish from the lake and ob

klio [65]

Answer:

Thirty-two percent of fish in a large lake are bass. Imagine scooping out a simple random sample of 15 fish from the lake and observing the sample proportion of bass. What is the standard deviation of the sampling distribution? Determine whether the 10% condition is met.

A. The standard deviation is 0.8795. The 10% condition is met because it is very likely there are more than 150 bass in the lake.

B. The standard deviation is 0.8795. The 10% condition is not met because there are less than 150 bass in the lake.

C. The standard deviation is 0.1204. The 10% condition is met because it is very likely there are more than 150 bass in the lake.

D. The standard deviation is 0.1204. The 10% condition is not met because there are less than 150 bass in the lake.

E. We are unable to determine the standard deviation because we do not know the sample mean. The 10% condition is met because it is very likely there are more than 150 bass in the lake

The answer is E.

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2 years ago

Samuel was riding in the back seat of the station wagon on the way home after a long and tiring day at the

ki77a [65]

Answer: One fourth of the entire trip.

Step-by-step explanation:

The initial distance is D.

" He fell asleep halfway home."

Then he fells asleep when the distance between his actual position and his house was half of D, or:

D/2.

"He didn't wake up until he still had half as far to go as he had already

gone while asleep."

So he wakes up when his actual position is a fourth of the initial distance:

(D/2)/2 = D/4.

Then if the entire trip has a distance D, and he was sleeping between:

D/2 - D/4 = 2D/4 - D/4 = D/4.

in a trip of a distance D, he was asleep a distance of D/4.

Then, returning to the question:

How much of the entire trip home was Samuel asleep?

This is equal to the quotient between the distance that he travels asleep and the total distance:

r = (D/4)/D = 1/4.

Then he was asleep in 1/4 of the entire trip.

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2 years ago

If w= the weight of trout. Which algebraic expression represents the phrase below?

konstantin123 [22]

Product means multiplication.

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So, product of 16 and w can be written as 16*w or simply 16w.

Hence, B is the correct choice.

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2 years ago

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polet [3.4K]

Answer:

Option A) outside

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1 year ago