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lapo4ka [179]
3 years ago
12

Solve for x: -2x – 9= X – 21

Mathematics
2 answers:
antiseptic1488 [7]3 years ago
7 0

Answer:

x = 10

Step-by-step explanation:

Degger [83]3 years ago
4 0

Answer:

x=4

Step-by-step explanation:

add 2x to both sides

-9=3x-21

add 21 both sides

12=3x

divide each side by 3

4=x

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VashaNatasha [74]

Answer:

9 ft

Step-by-step explanation:

You can use cosine to solve this, which is adjacent over hypotenuse. The ladder forms a triangle with the house, and the side you need to solve for is adjacent to the angle. You can set up the equation:

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Then you multiply 14 by cos(50) and get almost 9 ft (rounding to the nearest tenth of a foot).

6 0
4 years ago
The equation y = kx represents a proportional relationship between x and y, where k is the constant of proportionality. For a mo
kvasek [131]

Answer:

Hello!!!

In this specific case the constant of proportionality is s (speed).

Step-by-step explanation:

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You can use the constant of proportionality and either distance or time to find the missing varliable since it remains constant.

you can also switch up the formula:

d=st

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s=d/t

i really hope this helps!!!!!

3 0
2 years ago
Use the diagram of the right triangle above and round your answer to the nearest hundredth. If m <br> a. 17.32 m<br> b. 6.93 m<b
zepelin [54]
In ΔABC,
tanA = a/b
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7 0
3 years ago
Due to random variations in the operation of an automatic coffee​ machine, not every cup is filled with the same amount of coffe
DaniilM [7]

Answer:

465

because it is the wright answer

5 0
3 years ago
6.2 + 4/5 = ? .........
LUCKY_DIMON [66]

Answer:

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P.s.

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3 years ago
Read 2 more answers
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