All categories

3 years ago

Simplify ((–3)^2)^3.

Mathematics

2 answers:

Radda [10]3 years ago

8 0

(-3)^2= 9

(9)^3= 729

Hence ((-3)^2)^3 =729

guapka [62]3 years ago

6 0

Just work out yourself from every parentheses.

We have the expression ((-3)^2)^3

Inside the first parentheses, we have (-3)^2
Solve that.

(-3)^2 = (-3)(-3) = 9

Now we will have 9^3
Which is 9 * 9 * 9

9 * 9 * 9 = 729

So, 729 is the answer.

You might be interested in

A cylinder with a radius of 1 cm and a height of 21 cm has the same volume as a cone with a height of 7 cm. What is the radius o

Natasha_Volkova [10]

Answer:

Step-by-step explanation:

The formula of a volume of a cylinder:

$V=\pi r^2H$

r - radius

H - height

We have r = 1cm and H = 21cm. Substitute:

$V=\pi(1^2)(21)=21\pi\ cm^3$

The formula of a cone:

$V=\dfrac{1}{3}\pi r^2H$

r - radius

H - height

We have V = 21π cm³ and H = 7cm. Substitute:

$\dfrac{1}{3}\pi(r^2)(7)=21\pi$ divide both sides by π

$\dfrac{1}{3}(7)(r^2)=21$ divide both sides by 7

$\dfrac{1}{3}r^2=3$ multiply both sides by 3

$r^2=9\to r=\sqrt9\\\\r=3\ cm$

5 0

3 years ago

Read 2 more answers

What is the slope of the line that passes through (2,5) and (3,6).

earnstyle [38]

Answer:

Step-by-step explanation:

hope this help:) I use slop formula

5 0

3 years ago

Read 2 more answers

What is the area of this trapezoid? Enter your answer in the box. cm2=

WITCHER [35]

Download the app Math then take a picture and it wil give u the answer.

3 0

3 years ago

9-3*1/3*98= 6-*87/8+85647-552= 254+968*8

sp2606 [1]

Answer:

don't you have a calculator? just use that

6 0

2 years ago

Which postulate proves the two triangles congruent?

lorasvet [3.4K]

Answer:

B) SAS

Step-by-step explanation:

Notice that there are two pairs of congruent sides, AC is congruent with ZX, and BC is congruent with YZ. Since there's one angle in each triangle that's congruent to each other, we can say B is the only true answer.

3 0

3 years ago