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3 years ago

Write a sentence to explain what a cube root of a number means.

Mathematics

1 answer:

svetlana [45]3 years ago

5 0

Answer:

The cube root of a number is a special value that when used in a multiplication three times it gives that number.

Step-by-step explanation:

Example:

3 x 3 x 3

9 x 3 = 27

$3^{3}$

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Alon built a sand castle that measured 15 feet by 11 feet, and dug a moat around it. Afterward. they decided to change the castl

lorasvet [3.4K]

Answer:

Step-by-step explanation:

4 0

2 years ago

Can someone help me with this

stiks02 [169]

Answer:

$x = 5$

Step-by-step explanation:

$4x = 1x + 15 \\ 4x - 1x = 15 \\ 3x = 15 \\ \frac{3x}{3} = \frac{15}{3} \\ x = 5$

3 0

2 years ago

Read 2 more answers

Given the function f(x)=x^2+2x+1, find a f(−7)

tatuchka [14]

Answer:

Step-by-step explanation:

f(x)=x^2+2x+1

Let x = -7

f(-7)=(-7)^2+2*-7+1

= 49 -14+1

= 36

3 0

3 years ago

The function y=60+25sin(pi/6)t, where t is in months and t=0 corresponds to April 15, models the average high temperature in deg

BartSMP [9]

Answer:

The maximum temperature will be of 85 degrees, on July 15.

Step-by-step explanation:

Sine function:

The sine function oscilates between -1 and 1, and it's maximum value is:

$\sin{(\frac{\pi}{2})} = 1$

y=60+25sin(pi/6)t

The maximum value will occur when $\sin{(\frac{\pi t}{6}}) = 1$ , and it will be of 60 + 25 = 85 degrees.

When will it occur?

First we find the value of t for which the value inside the function sine is $\frac{\pi}{2}$ . So

$\frac{\pi t}{6} = \frac{\pi}{2}$

$\frac{t}{6} = \frac{1}{2}$

$2t = 6$

$t = \frac{6}{2} = 3$

That is the number of months after April 15, which is 3 months. So July 15.

8 0

3 years ago

5x+6y=18and 18x-15y=36 parallel or perpendicular

Katen [24]

Answer:

They are neither parallel nor perpendicular, since slope are different and not related by any equation

Step-by-step explanation:

First arrange them according to general equation:

$y = mx + c$

for the first equation :

$5x + 6y = 18 \\ 6y = - 5x + 18 \\ { \boxed{y = - \frac{5}{6} x + 3}}$

for the second equation :

$18x - 15y = 36 \\ 15y = 18x - 36 \\ y = \frac{18}{15} x - \frac{12}{5}$

8 0

3 years ago