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erastovalidia [21]
2 years ago
11

Solve the equation r −18.6 = 21.9 for x.

Mathematics
2 answers:
matrenka [14]2 years ago
8 0

Answer:

X=6,3

Step-by-step explanation:

timurjin [86]2 years ago
7 0

Answer:

r = 40.5

Step-by-step explanation:

brainliest pls :3

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WILL MAEK BRAINLIST <br>A shop has 20 pens. 12 of them are red. What percent of them are red?<br>​
dlinn [17]

Answer:

12/20×100percent

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4 0
3 years ago
F(x) = -1/2x is it increasing, decreasing or constant
kap26 [50]

Answer:

The function is decreasing.

Step-by-step explanation:

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6 0
3 years ago
What does “period” do or mean when graphing a periodic function?
Anton [14]
Hello!

A period of a function like the sin graph or cosine graph are periodic because they repeat themselves on a interval and never end and each interval from trough to trough or peak to peak is called one period. Or another way if looking at it is one period is the time for one complete cycle of motion before it repeats itself.

Hope this helps thanks.
5 0
4 years ago
If someone knows this pls help .
Naily [24]

Answer:

x = 37

Step-by-step explanation:

Use the theorem formula

a^2+b^2=c^2

35^2 + 12^2 = c^2

1225 + 144 = c^2

1369 = c^2

divide by square root

c = 37

so x = 37

8 0
3 years ago
you find an apartment on Craigslist that is advertised as having an area of 700 square feet. How big is the apartment in square
skelet666 [1.2K]

Answer:

x = 77.8 square yards

Step-by-step explanation:

Given the following data;

Area = 700 square feet

To find the area in square yards;

Conversion:

1 yard = 3 feet

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x square yard = 700 square feet

Cross-multiplying, we have;

700 = 9x

x = 700/9

x = 77.8 square yards

3 0
3 years ago
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