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tatyana61 [14]
3 years ago
7

What is the area of a perimeter with 12 cm?

Mathematics
1 answer:
Degger [83]3 years ago
6 0

Answer:

shape name is it square or rectangle is needed to be told

Step-by-step explanation:

if it's square then area is 9cm^2

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If c=3 what is 6 x (9-c)
DerKrebs [107]
36. 9-3=6x6=36
c=3 6x(9-c) do the parentheses first then multiply. the parentheses is 6 then multiply it with 6 =36

3 0
3 years ago
The police department uses a formula to determine the
laiz [17]

9514 1404 393

Answer:

  78.71 mph

Step-by-step explanation:

You're looking for the solution to ...

  d = 88

  0.0015r^2 +r = 88

  0.0015r^2 +r -88 = 0

Using the quadratic formula*, we find ...

  r = (-1 +√(1² -4(0.0015)(-88)))/(2×0.0015)

  r = (-1 +√1.528)/0.003 = 0.236123/0.003 = 78.7077

The speed of the car was about 78.71 mph.

_____

* The quadratic formula will also give a negative answer of about -745 mph, which is not relevant to the situation.

8 0
2 years ago
Please help me with my homework.
Blababa [14]

Answer:

-3x + 6

Step-by-step explanation:

-3(x - 2) to find the equivalent of this expression, we need to multiply inside the parenthesis with -3 (with both x and -2)

-3(x - 2 = -3x + 6 (two negative expressions multiplied results in positive)

3 0
3 years ago
A newspaper subscription costs $60. Mary Ellen can get a discount of 25% off through her work. How much will Mary Ellen pay for
AysviL [449]

Answer:

$45

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
What is the greatest number of 19 cent stickers that can be purchased with a $20 bill, assuming there is no sales tax?
user100 [1]

Answer:

105

Step-by-step explanation:

First, you are going to convert dollars to cents. Since there are 100 cents in a dollar, multiple $20 by 100. Now you should have 2,000 cents. Now all you have to do is divide by 19, the cost of the stamps, and you should get 105.26. Because you can't by part of a stamp your answer would be 105.

4 0
3 years ago
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