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2 years ago

What is the value of the expression (25+25)×310?

Mathematics

1 answer:

MrRa [10]2 years ago

3 0

The anwser is 15,500

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If there are 135 revolutions in 180 seconds how many revolutions in 40 seconds?

BartSMP [9]

Answer:

53.3 rotations

Step-by-step explanation:

135/180=x/40

solve by cross multiply

7 0

2 years ago

A stack of paper is 5 1/2 inches long by 11.4 inches wide and 3.2 inches high.what is the volume of the stack of paper

sashaice [31]

Answer:

200.64

Step-by-step explanation:

Volume = Length x Width x Height

200.64 = 5.5 x 11.4 x 3.3

5 0

2 years ago

18 • 1 and 18 = ? help

Lady_Fox [76]

Answer: 18 = 36.

Step-by-step explanation: (18x1) + 18 = 36

4 0

3 years ago

The base of a solid is the region in the first quadrant between the graph of y=x2 and the x -axis for 0≤x≤1 . For the solid, eac

nata0808 [166]

Answer:

The volume of the solid is π/40 cubic units.

Step-by-step explanation:

Please refer to the graph below.

Recall that the area of a semi-circle is given by:

$\displaystyle A=\frac{1}{2}\pi r^2$

The volume of the solid will be the integral from x = 0 to x = 1 of area A. Since the diameter is given by y, then the radius is y/2. Hence, the volume of the solid is:

$\displaystyle V=\int_0^1\frac{1}{2}\pi \left(\frac{y}{2}\right)^2\, dx$

Substitute:

$\displaystyle V=\frac{1}{2}\pi\int_0^1\left(\frac{x^2}{2}\right)^2\, dx$

Simplify:

$\displaystyle V=\frac{1}{2}\pi \int_0^1\frac{x^4}{4}\, dx$

Integrate:

$\displaystyle V=\frac{1}{2}\pi \left[\frac{x^5}{20}\Big|_0^1\right]$

Evaluate:

$\displaystyle V=\frac{\pi}{40}\left((1)^5-\left(0\right)^5\right)=\frac{\pi}{40}\text{ units}^3$

The volume of the solid is π/40 cubic units.

4 0

3 years ago

A quarter has a diameter of 2.4 m . what is it's circumference in cm

Vlad [161]

First lets convert the diameter to cm,
2.4 m equals 240 cm, that is by multiplying 2.4 times 100 because 1 meter has 100 cm
then we need to know how to calculate the circumference, and that is by multiplying pi (3.14) times the diameter of the circumference, that is:
circumference = pi*diameter = 3.14*240
circumference = 753.6 cm
that is the solution

7 0

3 years ago