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Aleks [24]
4 years ago
6

Could you help me figure out this problem? 9-[12+(15-3)]

Mathematics
2 answers:
sladkih [1.3K]4 years ago
8 0
By doing pemdas , you would minus 3 from 15 that would be 12 then you add 12 plus 12 which is 24 then you minus 24-9 which would be 15
shtirl [24]4 years ago
7 0
The answer should be -15. happy learning!
-mathgurl
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A pyramid has the same volume as a cube of side 10.0 cm
Svetlanka [38]

The height of the pyramid is 14.4 cm.

<h3>How to find the height of the pyramid?</h3>

volume of a pyramid = 1 / 3 Bh

where

  • B = base area
  • h = height of the pyramid

Therefore,

volume of the cube = L³

where

  • L = side length of the cube

Hence,

volume of the cube = 10³

volume of the cube = 1000 cm³

The volume of the pyramid is the same with the  volume of the cube.

Hence,

1000 = 1 / 3 Bh

The height of the pyramid is the same as the square base.

Therefore,

1000 = 1 / 3 (h²)h

1000 = 1  / 3 h³

cross multiply

3000 = h³

h = ∛3000

h = 14.4224957031

Hence, the height of the pyramid is 14.4 cm.

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8 0
2 years ago
Ima give away points bc well I can and I have 68 points and I’ll answer a 11 point question to get 69 NOICE
Musya8 [376]

Answer:

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Step-by-step explanation:

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8 0
3 years ago
Read 2 more answers
I am struggling how to work this out
mafiozo [28]
It means 2.5m/s multiplied by 2500 to get the total distance in meters
5 0
4 years ago
Is the average grade of an English class rose from 70 to 85 what is the approximate percent increase
tia_tia [17]

The approximate percent increase in the average grade is 21.43%.

<h3>What is the percentage increase?</h3>

Percentage is a measure of frequency that expresses a number as a value out of hundred. The sign used to denote percentage is%.

Percentage increase = (new grade / initial grade) - 1

(85 / 70) - 1 = 0.2143 = 21.43%

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5 0
3 years ago
Graph a line with a slope of -3 that contains the point (4, -2)
Crank

Answer:

Step-by-step explanation:

Given that

Slope m=-3

A point (x, y)=(4,-2)

Equation of a line can generally be written as

y=mx+c

Where, m is the slope

And c is the intercept on y-axis

Since we are given m=-3

Then, y=mx+c becomes

y=-3x+c

To get c, let substitute the point given, i.e x=4 and y=-2

y=-3x+c

-2=-3(4)+c

-2=-12+c

-2+12=c

c=-2+12

c=10

y=mx+c, then m=-3 and c=10

Then, the equation the line becomes y = -3x + 10

This is the required line equation

5 0
4 years ago
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