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3 years ago

15

A rectangle’s area is

^2 - x - 72" align="absmiddle" class="latex-formula">. What are the possible dimensions of the rectangle? Use factoring.

1 answer:

Arada [10]3 years ago

8 0

The possible dimensions could be (x+8)(x-9)

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A cube has six congruent faces that are all

erica [24]

Well you could just say that they have 6 congruent faces that have all the same measurements, as well as the same surface area.

5 0

3 years ago

What is the difference between theoretical and experimental probability?

umka2103 [35]

Answer:

<h2>See below</h2>

Step-by-step explanation:

Theoretical probability is the actual chance of something happening based on raw numbers.

For example: The theoretical probability of tails on a coin flip is 1/2 or 50%. If you flipped a coin, you would expect 50% to be heads, 50% to be tails.

However, since this almost never happens, experimental probability is used to describe the actual results.

For example: If you flip the coin 50 times and 23 are tails, 27 are heads, then the experimental probability is 46% for tails and 54% for heads.

I'm always happy to help :)

3 0

3 years ago

3+2(2p+4t) some one plz HELP ME.

makkiz [27]

Answer:

3+4p+8t

Step-by-step explanation:

We have been given an expression:

3+2(2p+4t)

We will simplify the equation:

Firstly, we will open the parenthesis by multiplying it with the 2 given outside of the parenthesis we get:

3+4p+8t

Since, we have two variables so it can not be further solved therefore,

This is the maximum simplification of the given expression.

3 0

4 years ago

Find the standard deviation of the following data. Answers are rounded to the nearest tenth. 5, 5, 6, 12, 13, 26, 37, 49, 51, 56

kogti [31]

Answer:

24.2(to the nearest tenth)

Step-by-step explanation:

The question is ungrouped data type

standard deviation =√ [∑ (x-μ)² / n]

mean (μ)=∑x/n

= $\frac{5+5+6+12+13+26+37+49+51+56+56+84}{12}$

=33.3

x-μ for data 5, 5, 6, 12, 13, 26, 37, 49, 51, 56, 56, 84 will be

-28.3, -28.3, -27.3, -21.3, -7.3, 3.7, 15.7,17.7, 22.7,22.7,50.7

(x-μ)² will be 800.89, 800.89,745.29,453.69,53.29,13.69,246.49,313.29,515.29,515.29,2570.49

∑ (x-μ)² will be = 7028.59

standard deviation = √(7028.59 / 12)

=24.2

6 0

4 years ago

Center ( 9,-8 ), passes through ( 19,22 )

katovenus [111]

Center at (h,k) and radius r is
(x-h)²+(y-k)²=r²

so given
center at (9,-8)

(x-9)²+(y-(-8))²=r²
(x-9)²+(y+8)²=r²

input the point (19,22) to find r²
x=19 and y=22
(19-9)²+(22+8)²=r²
10²+30²=r²
100+900=r²
1000=r²
10√10=r

well, the equation is
(x-9)²+(y+8)²=1000

6 0

4 years ago