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denpristay [2]
2 years ago
15

If

Mathematics
1 answer:
UkoKoshka [18]2 years ago
5 0

Answer:

-8n + 9

Step-by-step explanation:

Given that,

A = -3n + 2

B = 5n - 7

Before solving you have to know that,

( + ) × ( + ) = ( + )

( - ) × ( - ) = ( + )

( + ) × ( - ) = ( - )

Let us solve now.

A - B

-3n + 2 -(5n - 7)

-3n + 2 - 5n + 7

Combine like terms

-3n - 5n + 2 + 7

-8n + 9

Hope this helps you.

Let me know if you have any other questions :-)

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Answer:

D. promoting general friendliness

Step-by-step explanation:

You are not invading someone's personal life. You are just being friendly.

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6 0
2 years ago
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Fran swims at a speed of 2.8 mph in still water. The Lazy River flows at a speed of 0.8 mph. How long will it take Fran to swim
Elis [28]

Answer:

1.49 hrs or 1 hr and 30 minutes approximately

Step-by-step explanation:

if fran go 2.8m up then the river flow at a rate of 0.8m; the since we are taking the speed of fran and river to be constant. the ratio between their speed will always remain constant. that is if 0.8/2.8 = 0.286≈ this will be always constant.

so if he go up 4m then the horizontal length has to be 1.143 because 1.143/4 = 0.286.

now we find the distance between frans initial positon and final position. to find it we use pythagoras theorem.

\sqrt{(4^2 + 1.143^2)} =4.160 miles

to find the time divide distance traveled by speed;

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7 0
3 years ago
6. Jayden does 2 sit-ups on the first day of the month, 4 the next day, 8 the
bagirrra123 [75]

Answer:60

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7 0
3 years ago
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A triangle has angle measures 23° and 35°. What is the measure of the third angle ?
frozen [14]
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-58         -58
-------------------
      A   = 122 degrees
7 0
2 years ago
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A ball is thrown from a height of 67 meters with an initial downward velocity of 5/ms . The ball's height h (in meters) after t
Ivanshal [37]
<span>3.19459 seconds
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6 0
2 years ago
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