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3 years ago

Simplify the numerical expression: -4.2 + 8.1 x ( -1.9)

1 answer:

3 0

-19.59 is your answer because u do PEMDAS and that would be 8.1*(-1.9) which gives you -15.39 Then you do -4.2+-15.39 and you would get -19.59

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Simplify the polynomial by combining like terms

Veseljchak [2.6K]

Answer:

22 x^2

Step-by-step explanation:

Simplify the following:

11 x^2 + 11 x^2

Hint: | Add like terms in 11 x^2 + 11 x^2.

11 x^2 + 11 x^2 = 22 x^2:

Answer: 22 x^2

none of your answers are correct.

8 0

3 years ago

Find the volume of a pyramid with a square base where the area of the base is 8.3 m 2 and the height of the pyramid is 9.8 m

borishaifa [10]

Answer:

245.56

Step-by-step explanation:

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3 years ago

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goldenfox [79]

Thank you for posting your question here at brainly. I hope the answer will help you. Feel free to ask more questions.

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3 years ago

The tutor i had before explained it all but the answer wasn’t loading. that’s all!

VARVARA [1.3K]

Explanation:

The expression f(0) represents the value of the function at x=0 which means the y-intercept of the function.

the y-intercept of the graph is the point that crosses the y-axis.

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1 year ago

A classroom has a length of 30 ft. and a width of 20 ft. The flooring is to be replaced by tiles. If each tile has a length of 3

Mashcka [7]

Answer:

100

Step-by-step explanation:

Hello! to calculate the number of tiles needed for the floor you need two things

1. number of tiles that fit across the width, this is achieved by dividing the total width by the width of each tile

Width=20ft=240in

$N1=\frac{240}{24} =10$

2.number of tiles that fit in the logitude, this is achieved by dividing the total length by the length of each tile.

leght=30ft=360in

$N2=\frac{360}{36} =10$

Finally, you multiply the number of tiles that fit in width by the number of tiles that fit in length.

N=10X10=100

3 0

3 years ago