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steposvetlana [31]
3 years ago
13

Select the equivalent expression.

Mathematics
1 answer:
posledela3 years ago
4 0

Answer:

its a

Step-by-step explanation:

a x 4 = a^4

b^3 x 4 = b^12

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AB and CD are parallel. EF is the translation of AB. Is EF parallel to CD? Justify. What does this prove about the effect of tra
sergij07 [2.7K]
Yes, EF is parallel to CD. Translation is the simple slide of a shape, therefore it doesn't have an effect on parallel lines.
8 0
2 years ago
Read 2 more answers
Subtract the following polynomials, then place the answer in the proper location on the grid.
Grace [21]
(3m - 4n - 7) - (8m + n - 6)

3m - 8m  = - 5m
-4n - n = -5n
-7 - (-6) = -7 + 6 = -1

-5m - 5n - 1 is your answer

hope this helps
8 0
3 years ago
A pizza had 9/10 left before Lucas ate 4/5 of the pizza. How much pizza is left over
Norma-Jean [14]
1/10 is left.

Explanation:

First we need to find a common denominator. Since 5×2=10, if we multiply 4/5 by 2/2, we will be able to subtract that from 9/10.

4/5×2/2= 8/10. Then if we subtract that from the 9/10 left of the pizza, we get 1/10, the amount remaining.

Hope this helps :)
8 0
2 years ago
Read 2 more answers
If 140 people were surveyed, how many preferred crab?
Cloud [144]

If 140 people were surveyed, from the given table, the number of people that preferred crab is; 42

<h3>How to work with percentages?</h3>

We are given;

Total sample size; n = 140

Now, from the table we see the percentages that preffered each seafood.

Percentage that preferred Shrimp = 24%

Percentage that preferred Crab = 30%

Percentage that preferred Fish = 36%

Percentage that preferred Neither = 10%

Thus;

Number that preferred Crab = 30% * 140

Number that preferred Crab = 42 people

Read more about Percentages at; brainly.com/question/843074

5 0
1 year ago
Suppose the lengths, in seconds, of the songs in an online database are normally distributed. For a random sample of songs, the
sattari [20]

Answer:

186

Step-by-step explanation:

The sample mean, x, is the central value in the confidence interval, that is, the average between the upper and lower bounds of the interval.

In this case, the Lower bound is 184.00 and the upper bound is 188.00. Therefore, the sample mean is given by:

x = \frac{184+188}{2}\\x=186.00

The mean length, in seconds, of the sampled songs is 186.00.

5 0
3 years ago
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