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Gennadij [26K]
3 years ago
13

1) An elevator is on the 15th floor, it goes down 18 floors

Mathematics
2 answers:
hram777 [196]3 years ago
6 0

Answer:

it is on the 2nd floor

Step-by-step explanation: this is because it started at 15, then went down 18: 15-18

     -3

then it went up 5: -3+5  or 5-3

                                to end up at the 2nd floor

Umnica [9.8K]3 years ago
5 0

Answer:

It is on floor 2

Step-by-step explanation:

15-18=-3

-3+5=2

hope this helped :)

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What is the difference graphing sin(x)/cos(x) and sec(x)/csc(x)?
cupoosta [38]

Step-by-step explanation:

1. secx / cscx

2. sinx /cosx

7 0
2 years ago
What is (-7/8)(-3/4) simplified
Snowcat [4.5K]

Answer:

<h2>21/32</h2>

Step-by-step explanation:

-7/8 × -3/4 = 21/32

-7 × -3   = 21  

-8 × -4   = 32

21/32

<u><em>IMPORTANT: This number is not negative, because a negative times a negative is a positive.</em></u>

By the way, if you didn't know how to arrive at the fraction here's how.

First, Address input parameters & values.

Input parameters & values: The decimal number = 0.65625. Then, write it as a fraction

0.65625/1

Multiply by 100000 both the numerator & denominator

(0.65625 x 100000)/(1 x 100000) = 65625/100000

65.625% = 65.625/100 or 65625/100000

Find LCM (Least Common Multiple) for 65625 & 100000.

3125 is the LCM for 65625 & 100000

Divide by 3125

65625/100000 = (65625 / 3125) / (100000 / 3125)

= 21/32

I'm always happy to help :)

7 0
3 years ago
Read 2 more answers
molly ran 1/4 of a mile in 1 minute if molly runs at that speed how long will it take her to run 4 miles
Vika [28.1K]

Step-by-step explanation:

Molly ran 1/4 of a mile in 1 minute, i.e.

1/4 mile : 1 minute

Multiply both sides by 4 to get time for one mile

1 mile : 4 minutes

Multiply by 4 again to get time for 4 miles

4 miles = 4*4 = 16 minutes.

So it takes Molly 16 minutes to run four miles.

7 0
3 years ago
Find an exponential model : Q is the population of bacteria in a Petri dish whose population was originally 150,000 but is tripl
Nadya [2.5K]

Answer:

150,000*3^t for 6 hour increments (t=1 is 6 hours t=2 is 12)

150,000*3^(t/6) for hourly increments, each t is 1 hour.  

Step-by-step explanation:

Well super simply you could do 150,000*3^t where t is measured in 6 hour intervals.  so t=1 is 6 hours, and to get 1 hour you would need to do t=1/6

If you want t to be an increase of every hour you would just need to adjust, like I showed before 1/6 gets one hour so 150,000*3^(t/6) would be the model where every t increases by 1 hour.

4 0
3 years ago
Can someone check my answer? i got 600.
lubasha [3.4K]

Answer:

Volume = 120 cubic cm

Step-by-step explanation:

We would apply the formula for determining the volume of a square bases pyramid which is expressed as

Volume = 1/3 x base area x height

From the diagram,

length of square base = 6 cm

The base area = 6^2 = 36

height = 10

Thus,

Volume = 1/3 x 3/6 x 10

Volume = 120 cubic cm

I hope this help you! :)

7 0
3 years ago
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