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3 years ago

Insert parentheses in expression 2 so that it has a value of 4. Then show why your expression has a value of 4.

Mathematics

1 answer:

Natasha_Volkova [10]3 years ago

8 0

(2^3 +4) = 12

9-6=3

(2^3 +4) /(9-6)
12 /3
4

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Hello can someone help me simplify 4) and 5)? Thank you and please include steps :)

Leni [432]

Alrighty

remember some rules
$(ab)^c=(a^c)(b^c)$
and
$x^{-m}=\frac{1}{x^m}$
and
$x^0=1$ for all real values of x
and
$(a^b)^c=a^{bc}$
and
$(\frac{a}{b})^c=\frac{a^c}{b^c}$
and
(a/b)/(c/d)=(ad)/(bc)
and
$(a^b)(a^c)=a^{b+c}$
and
$\frac{a^m}{a^n}=a^{m-n}$
and don't forget pemdas
example: $-x^m=-1(x^m)$ but $(-x)^m=(-1)^m(x^m)$

so

4.
$(\frac{c^{-2}}{2})^{-2}=$

$\frac{(c^{-2})^{-2}}{2^{-2}}=$

$\frac{c^4}{\frac{1}{2^2}}=$

$\frac{c^4}{\frac{1}{4}}=$

$4c^4$

5.

$\frac{(-a)^4bc^5}{-a^2b^{-3}c^0}=$

$\frac{(-1)^4(a)^4bc^5}{-1(a^2)(\frac{1}{b^3}(1)}=$

$\frac{(1)a^4bc^5}{\frac{(-1)(a^2)}{b^3}}=$

$\frac{(a^4bc^5)b^3}{(-1)(a^2)}=$

$\frac{-a^4b^4c^5}{a^2}=$

$-a^2b^4c^5$

3 0

3 years ago

How may square roots does it to take to get a square root of the square root?

Xelga [282]

If you want to take a square root of a square root you will need 2 squares roots,

For example, i want the square root of the square root of 16.

I'll take it first: √16 = 4 and again, √4 = 2

So, the square root of the square root of 16 is 2.

But you can also make a root with index 4.

$\sqrt[4]{16}=2$

Because if you do 2.2.2.2 you will take 16.

3 0

3 years ago

I need help on 11-16

alisha [4.7K]

I cant see all of 11 and 14
12:
$3f = 18 \\ \frac{3f}{3} = \frac{18}{3} \\ f = 6$
13:
$3f = {3}^{2} \\ 3f = 9 \\ \frac{3f}{3} = \frac{9}{3} \\ f = 3$
15:
$3h = 9 + 10 \\ 3h = 19 \\ \frac{3h}{3} = \frac{19}{3} \\ h = 6.3$
16:
$3f = 27 - 21 \\ 3f = 6 \\ \frac{3f}{3} = \frac{6}{3} \\ f = 2$

6 0

3 years ago

PLEASE HELP ITS DUE TODAY PLEASE HELP ASAP 15 POINTS PLEASE HELP

ludmilkaskok [199]

Answer:

210 cm³

Step-by-step explanation:

volume = W x L x H

(where W = width, L = length and H = height)

By inspection of the diagram,

W = 6 cm

L = 7 cm

H = 5 cm

Therefore, volume = 6 x 7 x 5 = 210 cm³

6 0

2 years ago

Read 2 more answers

2. Carbohydrates are found in many foods. What is the end result of the body's use of a

nekit [7.7K]

Answer: the end result of carbohydrate is glucose, carbohydrates enhances energy and sugar levels.

Step-by-step explanation:

Major sources of carbohydrates are vegetables, fruits, whole grains, milk, and milk products. Carbohydrates at the chemical level contains carbon, hydrogen and oxygen.

5 0

3 years ago