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Lana71 [14]
2 years ago
7

Evaluate (3)^1/6 × (3)^-2/3

Mathematics
2 answers:
Elan Coil [88]2 years ago
7 0
39918656718818881883
Lelechka [254]2 years ago
3 0

Answer:

\dfrac{1}{\sqrt{3}}

Step-by-step explanation:

Evaluate:  3^{\frac{1}{6}} \times 3^{-\frac{2}{3}}

Apply exponent rule:  a^b \times a^c=a^{b+c}

\begin{aligned} \implies 3^{\frac{1}{6}} \times 3^{-\frac{2}{3}}&=3^{\frac{1}{6}-\frac{2}{3}}\\ &=3^{-\frac{1}{2}\end{aligned}

Apply exponent rule:  a^{-n}=\dfrac{1}{a^n}

\implies 3^{-\frac{1}{2}}=\dfrac{1}{3^{\frac{1}{2}}}=\dfrac{1}{\sqrt{3}}

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Frank owns 300 acres of land. If he divides the land into 1/2 acre plots, how many plots will he have?
ohaa [14]
If there are 300 acres, each split in half, than the number of plots will be twice that: 600. Frank has 600 plots of land.
6 0
3 years ago
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Laura painted her room with pink paint that was made by mixing paint at a ratio of 5 parts white paint to 2 parts red paint. Wil
lakkis [162]

Answer:

No

Step-by-step explanation:

Laura painted her room with pink paint that was made by mixing paint at a ratio of 5 parts white paint to 2 parts red paint.

Suppose Laura has 15 parts of white paint. This is thrice the amount Laura needs (because 15:5=3), so she has to have

2\cdot 3=6

parts of red paint.

Hence, if Laura combines 15 parts white and 3 parts red paint, then she will not create the same shade of pink as she used.

7 0
3 years ago
If tan x is equal to 3/4 find the value of sin x + cos x/ cos x (1 - cos x) ​
Flauer [41]

Answer:

35/4 =8¾

Step-by-step explanation:

using pythagoras theorem

hyp²=opp²+adj²

recall that tanX= opp/adj

taking our opposite side to be 3 and the adjacent side to be 4 , the hyp² = 3²+4²

hypotenuse = 5

recall also that , sinX = opposite /hypotenuse

= 3/5

CosX= adjacent /hypotenuse

=4/5

so we've known tanx = 3/4 cosX = 4/5 sinx= 3/5

substitute these values into your equation

it will give us 3/5 + 4/5 divided by 4/5 ×(1-4/5)

=35/4 = 8¾

6 0
3 years ago
The depth of a lake is 15.8m
Leya [2.2K]

a. Jada got the measurement 16m.

b. The measured depth differ 0.2m from the actual depth.

c. There is a 12.66% error in calculation.

Step-by-step explanation:

Given,

The depth of lake = 15.8 m

a. Jada accurately measured the depth of the lake to the nearest meter. What measurement did Jada get

When a digit after the decimal point is 5 or more than that, the number before decimal is rounded to the next number.

Therefore,

15.8 rounded to nearest number is 16.

The depth of lake measured by Jada = 16 m

Jada got the measurement 16m.

b. By how many meters does the measured depth differ from the actual depth?

Difference = Approx - Exact

Difference = 16 - 15.8 = 0.2m

The measured depth differ 0.2m from the actual depth.

c. Express the measurement error ad a percentage of the actual depth.

Percent error = \frac{|approx-exact|}{exact}*100

Percent error = \frac{|2|}{15.8}*100 = \frac{200}{15.8}

Percent error = 12.66%

There is a 12.66% error in calculation.

Keywords: percent, error

Learn more about percent at:

  • brainly.com/question/9323337
  • brainly.com/question/9103248

#LearnwithBrainly

4 0
3 years ago
each row has a starting cart that it 4 feet long if this row is 43 feet long how many total carts are in it
Margaret [11]

Answer:

43/4 = 10.25 which rounds to the nearest whole number of 10 total carts

5 0
2 years ago
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