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yuradex [85]
2 years ago
5

Mari is adding (-7) and (-2). She adds their absolute values and says the answer is 9.

Mathematics
1 answer:
Helen [10]2 years ago
5 0

Answer:

ari is adding (-7) and (-2). She adds their absolute values and says the answer is 9.

What did Mari forget?

A

that is neither positive nor negative

B

to move left on the number line

С

to keep the sign of the larger integer

D

to keep the sign of the two integers being adde

Step-by-step explanation:

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x<10 and x>−14

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3 years ago
PLEASE HELP!
makvit [3.9K]

Answer:

Step-by-step explanation:

<h2>Cone:</h2>

    diameter = 12 cm

                  r =  12 ÷ 2 = 6 cm

                 h = 6 cm

      \sf \boxed{\text{\bf Volume of cone = $\dfrac{1}{3} \pi r^2h$ }}

                                    \sf = \dfrac{1}{3}*3.14*6*6*6\\\\ = 226.08 \ cm^3

To find the surface area, we need to find the slant 'l'

       \sf l = \sqrt{h^2+r^2}\\\\       =\sqrt{6^2+6^2}\\\\        = \sqrt{36+36}\\\\ =\sqrt{72}\\\\= 8.49 \ cm

       \sf \boxed{\text{\bf Total surface area of cone = $\pi r(r+l)$}}

                                                         = 3.14 * 6 * (6 + 8.49)

                                                        = 3.14 * 6 * 14.49

                                                        = 273 cm²

8 0
1 year ago
The problem is how many people must attend the third show so that the average attendance for three shows is 3000? And the other
Akimi4 [234]
An average is just the total attendance numbers / the number of performances.

Let's let the number of people in the third show be equal to x so we can write this as a formula, it's easier to read. x is just "some number we don't know"

The average is

Average=Total attendance/3
So
3000=(2580+2920+x)/3

So let's multiply by that 3 on both sides, make x easier to find

Average*3=2580+2920+x ( * means multiplied)

The average is 3000

So

2580+2920+x=3000*3
2580+2920+x=9000
 

Then we subtract those other attendances to get x on its own.

x=9000-2580-2920
x=3500





8 0
3 years ago
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Divide. Round your answer to the nearest whole number.<br>91,543 = 5 =​
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Step-by-step explanation:

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Kayla bought three pounds of strawberries for $14.40 what is the price in dollars per ounce of strawberries.
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Answer:

Kayla compró tres libras de fresas por $ 14,40, cuál es el precio en dólares por onza de fresas.

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