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Strike441 [17]
3 years ago
9

Simplify 81 to the negative 3 fourths power. (1 point)

Mathematics
2 answers:
Oksi-84 [34.3K]3 years ago
7 0

Answer:

negative 1 over 27

Step-by-step explanation:

81 * negative 1 over 27 = -3

suter [353]3 years ago
5 0

Answer:

\dfrac{1}{27}

Step-by-step explanation:

81^{-\frac{3}{4}} =

= \dfrac{1}{81^{\frac{3}{4}}}

= \dfrac{1}{(\sqrt[4]{81})^3}

= \dfrac{1}{(3)^3}

= \dfrac{1}{27}

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sertanlavr [38]
What you have to do is multiply each of the sides so you have 80, 60, and 48.

Add those up to get 188. Then multiply this by 2 and you get 376.

Your answer is D. (376)

P.S if this helped you out, please give me brainliest if you don't mind. I am only a few more from leveling up :D
5 0
4 years ago
A) From where Jacob and his family have set up camp to the base of the mountain is 2,000 feet.
Vilka [71]

Answer:

A.) 2752.8 feet

B.) 5044.3 feet

C.) 6182.9 feet

Step-by-step explanation:

A.) Given that the camp to the base of the mountain is 2,000 feet. And the angle of elevation is 54 degrees

Using SohCahToa, to calculate the height

Tan 54 = height/2000

Height = 2000 tan54 = 2752.8 feet

B.) Given that the base of the mountain is 2600 feet wide.

Let use pythagorean theorem to find the slant length

Adjacent = 2600/2 = 1300 feet

Slant length = root ( 1300^2 + 2752.8^2)

Slant length = 3044.3 feet

The total distance that Jacob and his dad hiked from their campsite to the top of the mountain will be

3044.3 + 2000 = 5044.3 feet

C.) Given that the angle of depression is 24 degrees while the height is 2752.8 feet

Using pythagorean theorem again

Tan 24 = 2752.8/distance

Distance = 2752.8/tan24

Distance = 6182.9 feet

8 0
3 years ago
Explain how you can use a number line to show that 5/8isgreater than 3/8
Rina8888 [55]
Here is what I did.... 

8 0
4 years ago
Ax + by = c<br> To solve each literal equation for the given variable
vodka [1.7K]

Answer:

Step-by-step explanation:

For a:

ax = c - by

a = (c - by)/x

For x:

ax = c - by

x = (c - by)/a

For b:

by = c - ax

b = (c - ax)/y

For y:

by = c - ax

y = (c - ax)/b

8 0
4 years ago
35 boys 21 girls. mei ling surveys 16 girls. barry surveys 28 and 12 and halmi surveys 14 and 14. who would have the most approp
seraphim [82]

Halmi had the most appropriate information because when you add both the girls and the boys up it is 56 after that you have to add 14+14=28.

28/56= exactly %50 of the entire group.

6 0
3 years ago
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