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adoni [48]
3 years ago
12

2x^(2/3)+5x^(2/3)=686

Mathematics
1 answer:
mrs_skeptik [129]3 years ago
4 0

Answer:

Step-by-step explanation:

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A researcher analyzed the results of her data and calculated the standard deviation of scores at 3.5. what is the variance? 7.00
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A researcher analyzed the results of her data and calculated the standard deviation of scores at 3.5. what is the variance?

Solution: We are given the standard deviation of scores = 3.5

We know that the variance is the square of the standard deviation.

Therefore, the variance is:

Variance = (Standard-deviation)^{2}

                       =3.5^{2}

                       =12.25

Therefore, the variance of the scores is 12.25

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3 years ago
Derivative of sin11xcos11x
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Hello here is a solution :
f'(x) =( sin11x)'cos11x +<span>sin11x(cos11x)'
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6 0
3 years ago
Whats the anser to this please help out​
Paha777 [63]

Answer:

The answer is B

Step-by-step explanation:

5 0
2 years ago
How many times heavier is a 8 1/4 pound fish than a 6 7/8 pound fish
icang [17]

Answer:

Step-by-step explanation:

Divide 8 1/4 by 6 7/8 and the answer will be 1.2 times heavier.

8 1/4 is 8.25 and 6 7/8 is 6.875 in decimal point and again:

8.25 divided by 6.875 is 1.2.

8 0
1 year ago
7. for normal situations, the minimum speed limit throughout the u.s. interstate highway system is 72 km/hr which is 45 miles pe
gladu [14]

Answer:

Question 7: Distance = 237.6 km

Question 8: Distance = 399.3 km

Step-by-step explanation:

Question 7:

Given:

Minimum speed (s) = 72 km/hr

Time taken (t) = 3.3 hours.

We know that, distance traveled is equal to the product of speed and time.

Therefore using distance formula, we get:

Distance = Minimum speed × Time

Distance = s\times t

Distance = 72\times 3.3 = 237.6\ km

Therefore, distance traveled at this speed is 237.6 km.

Question 8:

Maximum speed (S) = 121 km/hr

Time taken (T) = 3.3 hours.

We know that, distance traveled is equal to the product of speed and time.

Therefore using distance formula, we get:

Distance = Maximum speed × Time

Distance = S\times T

Distance = 121\times 3.3 = 399.3\ km

Therefore, distance traveled at this speed is 399.3 km.

3 0
2 years ago
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