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3 years ago

Simplify (3^-2)^4A: 3^8B: 1/3^2C: 1/3^8D: 3^2

Mathematics

1 answer:

Andreyy893 years ago

6 0

Answer: c

explanation: (3^-2)^4 equals 1.5x10^-4
find which choice equals the same as the given equation.

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Elan Coil [88]

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no. she can read 30

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3 years ago

Given circle O, angle A has a measure of 36° and the radius is 10 cm, find the area of sector BOC.

Fed [463]

Answer:

The area of the sector BOC is A' = 31.4 $cm^{2}$

Step-by-step explanation:

Radius of the circle = 10 cm = 0.1 m

Angle of sector $\theta$ = 36°

Area of the circle A = $\pi r^{2}$

A = 3.14 × $0.1^{2}$ = 0.0314 $m^{2}$

Now area of the sector BOC is

$A' = A (\frac{\theta}{360} )$

$A' = 0.0314 (\frac{36}{360} )$

A' = 0.00314 $m^{2}$ = 31.4 $cm^{2}$

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7 0

4 years ago

Pls solve this ,urgent no spam

aleksklad [387]

Answer:

<u>Question 3</u>

Given expression:

$\sf \left(\dfrac{-8}{9} \times \dfrac{1}{-5}\right)+\left(\dfrac{-8}{9} \times \dfrac{-7}{11}\right)$

Both parentheses share a common term.

To factor out a common term: ab + ac = a(b + c)

$\textsf{Factor out the common term }\dfrac{-8}{9}$

$\sf \implies\dfrac{-8}{9} \times \left(\dfrac{1}{-5}+\dfrac{-7}{11}\right)$

-------------------------------------------------------------------------------------------------

<u>Question 4</u>

To calculate the amount of money Rajni had to begin with, sum the three amounts she spent:

$\sf \implies total=10\frac14+25\frac34+16\frac12$

As $\sf a\frac{b}{c}=a+\frac{b}{c}$ , then:

$\sf \implies 10+\frac14+25+\frac34+16+\frac12$

Collect and sum the whole numbers:

$\sf \implies (10+25+16)+\frac14+\frac34+\frac12$

$\sf \implies 51+\frac14+\frac34+\frac12$

As $\sf \frac14+\frac34=\frac44=1$ , then

$\sf \implies 51+1+\frac12$

$\sf \implies 52+\frac12$

$\sf \implies 52\frac12$

4 0

2 years ago

Which of the following is a measurement conversion that you may need to make when comparing energy and mass in nuclear reactions

DiKsa [7]

The correct option is C. In Nuclear reactions, two nuclear particles collide to produce products that are different from the reactants. During nuclear reaction, a lot of processes take place. In nuclear reactions, the total energy is conserved. Thus, the missing rest mass energy can be accounted for by using the Einstein's formular to find mass - energy equivalence.

7 0

3 years ago

Answer this pls asap

Scorpion4ik [409]

Answer:

24.75

Step-by-step explanation:

2x-11 + 6x-7 =180

8x-18=180

8x=198 /8

x=24.75

5 0

3 years ago

Read 2 more answers

Simplify (3^-2)^4A: 3^8B: 1/3^2C: 1/3^8D: 3^2​

Simplify (3^-2)^4A: 3^8B: 1/3^2C: 1/3^8D: 3^2