All categories

3 years ago

What is the word for a rational number whose cube root is a whole number

Mathematics

1 answer:

xxTIMURxx [149]3 years ago

8 0

It's called perfect cubes

You might be interested in

What is the measure of the angle in the Southwest corner of the intersection of broadway and 22nd street

Svetllana [295]

Answer:

105°

Step-by-step explanation:

Maps are usually oriented so that North is up. That means the southwest corner is below and to the left of the intersecting lines. Since numbered streets are usually parallel, we're to assume that W 22nd street is parallel to W 20th street. That makes Broadway a transversal of parallel lines, and it makes the angle of interest a corresponding angle to the one whose measure is shown.

In this (assumed) geometry, corresponding angles are congruent, so the angle of interest has measure 105°.

7 0

4 years ago

HELPP PLEASE ILL MAKE YOU THE BRAINIEST Find the area of the rhombus

iogann1982 [59]

Answer:

D1×D2/2sq

445×5= 225

225/2

=112.5

5 0

2 years ago

You only want to buy photos in sizes that are similar rectangles for your new gallery wall in your home. Which size photos shoul

Svet_ta [14]

You'd want to buy the 4 by 5 and the 11 by 14 because if you times 4 by 3 and 5 by 3, the answer would be 12 by 15 which is the closet or the most similar pair

4 0

3 years ago

The graph of y=f(x) is shown below. Find all values of x where f(x)=-8

vichka [17]

Answer:

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers

You are constructing a concrete landing pad for a helicopter. You have 4704 cubic feet of concrete.

MAVERICK [17]

a) We have to calculate the height of the pad.

We know that the volume will be 4704 cubic feet.

We also know that the base of the pad is a square of side length 56 feet.

As the volume is the area of the base times the height, we can find the height by dividing the volume by the base area:

$\begin{gathered} V=A_b\cdot h \\ h=\frac{V}{A_b}=\frac{4704\text{ ft}^3}{(56\text{ ft})^2}=\frac{4704}{3136}\text{ ft}=1.5\text{ ft} \end{gathered}$

The height is 1.5 feet.

b) Now, we have a circular pad of which we know the height (1.5 feet) and the volume (4705 ft³). The area of the base will have to be the same as the are of the square: 3136 ft².

The area of this circular pad can be expressed as πD²/4, so we can calculate the diameter D as:

$\begin{gathered} A=3136 \\ \frac{\pi D^2}{4} \\ D^2=3136*\frac{4}{\pi} \\ D^2=3136*\frac{4}{3.14} \\ D^2=3994.9045 \\ D=\sqrt{3994.9045} \\ D\approx63.21 \end{gathered}$

The diameter is approximately 63.21 feet.

Answer:

a) The pad will be 1.5 feet thick

b) The diameter will be 63.21 feet.

3 0

1 year ago