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3 years ago

Can someone help me?

Mathematics

1 answer:

tekilochka [14]3 years ago

5 0

Check the picture below.

make sure your calculator is in Degree mode.

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Which expressions have a value of 16/81? Check all that apply.

lana [24]

Which expression have a value of 16/81? check all that apply. (2/3)^4, (16/3)^4, (4/81)^2, and (4/9)^2

Answer:

First and last option is correct.

$(\frac{2}{3})^{4}=\frac{16}{81}$

$(\frac{4}{9})^{2}=\frac{16}{81}$

Step-by-step explanation:

Given:

There are four options.

(2/3)^4, (16/3)^4, (4/81)^2, and (4/9)^2

We need to check all given options for value of 16/81.

Solution:

Using rule.

$(\frac{a}{b})^{n}=\frac{a^{n}}{b^{n}}$

Solve for option $(\frac{2}{3})^4$ .

$(\frac{2}{3})^{4}=\frac{2^4}{3^4}=\frac{2\times 2\times 2\times 2}{3\times 3\times 3\times 3}=\frac{16}{81}$

Solve for option $(\frac{16}{3})^4$ .

$(\frac{16}{3})^{4}=\frac{16^4}{3^4}=\frac{16\times 16\times 16\times 16}{3\times 3\times 3\times 3}=\frac{65536}{81}$

Solve for option $(\frac{4}{81})^2$ .

$(\frac{4}{81})^{2}=\frac{4^2}{81^2}=\frac{4\times 4}{81\times 81}=\frac{16}{6561}$

Solve for option $(\frac{4}{9})^2$ .

$(\frac{4}{9})^{2}=\frac{4^2}{9^2}=\frac{4\times 4}{9\times 9}=\frac{16}{81}$

Therefore, expression $(\frac{2}{3})^4$ and $(\frac{4}{9})^2$ have a value of $\frac{16}{81}$ .

6 0

3 years ago

Question is in the picture, please help me

gregori [183]

Answer:

12.56 units

Step-by-step explanation:

C=pid

C = 3.14(4)

C = 12.56

7 0

3 years ago

Jack was out at a restaurant for dinner when the bill came his dinner came to $14 he wanted to leave a 31% tip

postnew [5]

Answer:

Tip = $4.34

Total = $18.34

Step-by-step explanation:

Dinner = $14

Tip is 31% of dinner

14 x 0.31 = 4.34

14 + 4.34 = 18.34

4 0

2 years ago

F(x)=3x+4 and g(x) 4x^(2)-x <br> Find f(-5) and g(-2)

katovenus [111]

F(-5)=3(-5)+4=-11
g(-2)=4(-2)^2+2=18

7 0

3 years ago

2) A rectangular pyramid has the base area measuring 30 m by 20 m. Given 1 point

Hitman42 [59]

Answer:

20x30xH=7000

11.6666 , depends on how much you need to round it. if 2 sig figs, round it to 12.

4 0

2 years ago

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