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iren2701 [21]
2 years ago
8

An elevator goes up 7 floors and then down 4 floors .what integet represent the change in the floor level

Mathematics
1 answer:
nexus9112 [7]2 years ago
4 0

Answer:

it's 3

Step-by-step explanation:

it went up 7 floors and went down 4 floors, if you subtracted those it will be 3.

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How it came to this
ryzh [129]
You were really close :D
The mistake you made is that 44 - 36 is 8, not 6.
Using 8 instead, the answer is:
3~\frac{8}{12}=3~\frac{3}{4},~or~3.75
4 0
2 years ago
If<br> tan (0) = -√3<br> then one possible value of<br> 0<br> in degrees is:
barxatty [35]

One possible answer is 120°

6 0
1 year ago
Data for the estimated number of HIV cases worldwide between 1988 and 1996 suggests exponential growth in the number of cases ov
Eduardwww [97]

Answer:

d. 52.5 million cases

Step-by-step explanation:

from the data output in the question, we have the regression equation to be

log y = -151.281 + 0.076577x

y is the number of hiv cases which is in millions

x is the year of the hiv case

x = 1998

we put the value of x in the regression equation

log y = -151.281 + 0.076577(1998)

log y = -151.281 + 153.000846

log y  = 1.719846

since the result is in log form,

y=10^{1.791846}

y = 52.5 million cases

3 0
3 years ago
I just need help with these few questions... please give me actual answers.
mario62 [17]

Answer:

Step-by-step explanation:

1. -7 = w + 5

w = -12

(-12 + 5 = -7)

2. -4p + 38 = 10

           -38     -38

-4p = -28

/-4        /-4

p = 7

3. -3 1/2 = -1 1/4b

   /1.25      /1.25

-2 4/5 = -b

2 4/5 = b

or

2.8 = b

8 0
2 years ago
Read 2 more answers
Which set of side lengths forms a right triangle?
pochemuha

Awnser:

9,12,18

Step-by-step explanation:

you have to add the smallest numbers together and it has to be greater that the greatest number.

9+12= 21

21>18

4 0
3 years ago
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