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4 years ago

How to do order of operations and evaluating expressions

Mathematics

2 answers:

Reil [10]4 years ago

7 0

PEMDAS

Parentheses, exponents, multiplication, division, addition, subtraction.

Andreas93 [3]4 years ago

4 0

Order of operations is parenthesis first then multiplicate and divide then add and subtract

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How do you factor n^3+1000

marysya [2.9K]

N^3 + 1000
Steps
you have to apply the sum of cubes rule: x^3 + y^3 = (x + y)(x^2 - xy + y^2)
which is... n^3 + 1000 = (n + 10)(n^2 - 10n + 10^2)
= (n + 10)(n^2 - 10n + 10^2)
Simplify
= (n = 10)(n^2 - 10n + 100)

8 0

3 years ago

A tennis ball is in a cylindrical container. The ball has a radius of 5 inches and the cylinder has a height of 8 inches. How mu

Nostrana [21]

Answer:

104.7 in^3

Step-by-step explanation:

Step one:

given data

The ball has a radius of 5 inches and

the cylinder has a height of 8 inches

Step two:

The volume of the cylinder

$v= \pi r^2 h$

substitute our data

$v= 3.142*5^2*8\\\\v=628.4in^3$

The volume of the ball

$v=4/3 \pi r^3$

substitute our data

$v= 4/3 *3.142*5^3\\\\v= 523.7 in^3$

The space will have a volume of

=628.4-523.7

=104.7 in^3

7 0

3 years ago

Solve for x can someone please answer help

lakkis [162]

Answer:

Step-by-step explanation:

Similar triangles

$\frac{AD}{AB}=\frac{DE}{BC}\\\\\frac{x+2}{x}=\frac{3}{2}\\\\$

Cross multiply

2*(x+2) = 3*x

2x + 2*2 = 3x

2x + 4 = 3x

Subtract 2x from both sides

2x + 4 -2x = 3x - 2x

4 = x

x = 4

5 0

3 years ago

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Un prisma rectangular tiene un volumen de 10,976 pulgadas cúbicas. Su longitud es cuatro veces su ancho. Su altura es el doble d

tankabanditka [31]

YAnswer:

Step-by-step explanation:

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3 years ago

The dot plot below shows how many laps each student in Coach Toni's gym class ran one day.

Marysya12 [62]

$\underbrace{5;5;5;5;10;10;15;15;20;35}_{10}\\\\5\cdot4+10\cdot2+15\cdot2+20+35=125\\\\\frac{125}{10}=12.5\leftarrow\boxed{B}$

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3 years ago

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