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Stolb23 [73]
3 years ago
14

(-2abc)^2 simplify please

Mathematics
1 answer:
andrew-mc [135]3 years ago
7 0

Answer:

4 a^2 b^2 c^2

Step-by-step explanation:

(-2abc)^2

The exponent needs to go to each term in the parentheses

(-2)^2 * a^2 * b^2 c^2

4 a^2 b^2 c^2

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Ariana’s annual(year) pay is $34,320. What is her average gross pay?
MArishka [77]

Answer:

9. $2,860 per month

10. $660 per week

11. $94 per day <u><em>(not 100% sure on this one, not sure if its getting techinical with working 5 days a week)</em></u>

Step-by-step explanation:

9. $34,320 divide by number of months in a year (12)

10. $34,320 divide by number of weeks in a year (52)

11. $34,320 divide by number of days in a year (365)

4 0
3 years ago
A statistics professor plans classes so carefully that the lengths of her classes are uniformly distributed between 47.047.0 and
alisha [4.7K]

Answer:

0.025 = 2.5% probability that a given class period runs between 51.5 and 51.75 minutes.

Step-by-step explanation:

An uniform probability is a case of probability in which each outcome is equally as likely.

For this situation, we have a lower limit of the distribution that we call a and an upper limit that we call b.

The probability that we find a value X lower than x is between c and d is given by the following formula

P(c \leq X \leq d) = \frac{d - c}{b-a}

For this problem, we have that:

a = 47, b = 57, c = 51.5, d = 51.75. So

P(c \leq X \leq d) = \frac{d - c}{b-a}

P(51.5 \leq X \leq 51.75) = \frac{51.75 - 51.5}{57 - 47} = 0.025

0.025 = 2.5% probability that a given class period runs between 51.5 and 51.75 minutes.

4 0
3 years ago
Help please <br> Which graph does not represent a function?
dsp73
The first one is the one that doesn’t represent a function
7 0
3 years ago
Read 2 more answers
The length of a violin string varies inversely with the frequency of its vibrations. A violin string 14 inches long vibrates at
lara31 [8.8K]

Answer: 525 cycles per second.

Step-by-step explanation:

The equation for inverse variation between x and y is given by :-

x_1y_1=x_2y_2       (1)

Given : The length of a violin string varies inversely with the frequency of its vibrations.

A violin string 14 inches long vibrates at a frequency of 450 cycles per second.

Let x =  length of a violin

y=  frequency of its vibrations

To find: The frequency of a 12 inch violin string.

Put x_1=14,\ x_2=12\\y_1=450,\ y_2=y in equation (1) , we get

(14)(450)=(12)(y)  

Divide both sides by 12 , we get

y=\dfrac{(14)(450)}{12}=525

Hence, the frequency of a 12 inch violin string = 525 cycles per second.

3 0
3 years ago
FIND THE RADIUS OF A CIRCLE WHO'S DIAMETER IS40 FEET
iVinArrow [24]

Answer:

40 feet

radius is half of the diameter, so the radius is half of 40

radius = diameter/2

radius = 40/2

radius=20 feet

8 0
3 years ago
Read 2 more answers
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