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3 years ago

7

An elevator starts at the lobby and makes 4 stops. The positive numbers stand for going up, and the negative numbers stand for g

oing down. What expression gives the total number of floors traveled during the 4 stops?

1 answer:

butalik [34]3 years ago

5 0

Answer:

∣∣5∣∣+∣∣−7∣∣+∣∣9∣∣+∣∣−13∣∣

Step-by-step explanation:

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12r+5+3r-5<br> Need you help

iren [92.7K]

Answer:

15r

Step-by-step explanation:

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3 years ago

What is 23x4x67+213 divided by 9 -154 x7

Julli [10]

Answer: -6377/1069 (write as fraction)

Step-by-step explanation: 6377/-1069

If you would like for me to simply it let me know!

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2 years ago

New York City is located about 40˚ north of the equator. If Earth's radius is about 4000 miles, approximately how many miles sou

qwelly [4]

Answer:

The answer is "2793 miles"

Step-by-step explanation:

In this firstly we convert degrees to radians, which can be defined as follows:

$\to \theta =\frac{40^{\circ} \times \pi }{180^{\circ}}$

$=\frac{ 2\pi }{9}$

Now calculating the distance:

$=\frac{2\pi }{9} \times 4000\\\\= \frac{8000 \pi }{9}$

$=\frac{8000\times 3.14 }{9}\\\\ = \frac{25120}{9}\\\\=2793 \ miles$

4 0

2 years ago

Students planted 4(2x+3y) amount of trees on saturday and then 3(5x+4) amount of trees on Sunday. What is the total amount of tr

algol [13]

We have to add the amounts:

4(2x+3y) + 3(5x+4)

First, though, we have to distribute:

4*2x + 4*3y + 3*5x + 3*4
8x + 12y + 15x + 12

Now we just need to simplify:

23x + 12y + 12

The students planted 23x + 12y + 12 trees total.

7 0

3 years ago

A cat is stuck in a tree looking down at firemen, the cat sat at a 20 degree angle

Svetach [21]

Answer:

BC=sin(62∘)⋅22≈19.42

8 0

2 years ago