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sergij07 [2.7K]
3 years ago
8

Write a system of equations to describe the situation below, solve using substitution, and fill

Mathematics
1 answer:
inessss [21]3 years ago
6 0
I think it it would be 40 I’m not to sure about this so
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HELP!!! Find the length of PM.
solniwko [45]

Answer:

Your answer is 7

Step-by-step explanation:

The two lines are the same length, so set the lengths equal to each other.

5x-3=11-2x

add 2x

7x-3=11

add 3

7x=14

divide by 7

x=2

Then you just plug x in

5(2)-3

multiplication first

10-3

subtraction

7

That is your answer

4 0
3 years ago
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Write the expression in the standard form a+b i <br>(8-8i) + (1+6i )= (simplify the answer)
kotegsom [21]

Answer:

Step-by-step explanation:

(8 - 8i) + (1 + 6i)

8 + 1 - 8i + 6i

9 - 2i

4 0
3 years ago
Given two trig ratios find the third!
brilliants [131]

Answer:

Step-by-step explanation:

tanA = sinA/cosA = (4/7)/(3/7) = 4/3

7 0
3 years ago
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Write the equation of a line perpendicular to 5x−9y=−8 that passes through the point ​(−5​,8​).
Fantom [35]

Answer:  y = -(9/5)x - 1

Step-by-step explanation:

Rewrite the equation in standard form:  y = (5/9)x+(8/9).  [y=mx+b]

A line perpendicular to this would have a slope that is the negative inverse of the original slope (5/9), which would make it -(9/5).  The y-intercept would also change, but we don't know the value, yet.  For now, we'll use "b" for the y-intercept.  This results in a perpendicular line:

y = -(9/5)x + b

We can calculate b, the y-intercept, by using the point (-5,8) and solving for b.

8 = -(9/5)*(-5) + b

8 = (9) + b

b = -1

The line perpendicular to 5x−9y=−8 that passes through the point ​(−5​,8​) is

y = -(9/5)x - 1

7 0
3 years ago
Which expression can be used to find the volume of the sphere? A sphere with radius 9 inches. V = four-thirds pi r squared = fou
Varvara68 [4.7K]

Answer:

b

Step-by-step explanation:

7 0
3 years ago
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