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melamori03 [73]
1 year ago
11

Which expreion are equivalent to

Mathematics
1 answer:
Makovka662 [10]1 year ago
8 0

The expression equivalent to the expression -90 - 60w is -30(3 + 2w),  (-9 - 6w)10 and  -20(4.5 + 3w)

We need to find the expressions that are equivalent to given expression

We solve the expression and check,

A) -30(3 + 2w)

-90 - 60w

Yes it is equivalent.

B) (-9 - 6w)10

-90 - 60w

Yes it is equivalent.

C) -3(30 - 20w)

-90 + 60w

No it is not equivalent.

D)(6 + 4w)15

90 + 60w

No it is not equivalent.

E) -20(4.5 + 3w)

-90 - 60w

Yes it is equivalent.

Therefore, The expression equivalent to the expression -90 - 60w is -30(3 + 2w),  (-9 - 6w)10 and  -20(4.5 + 3w)

To learn more about multiplication refer here

brainly.com/question/10873737

#SPJ4

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Assume a random variable x is normally distributed with mean = 90 and standard deviation = 5. Find the indicated probability.
nikklg [1K]

Answer:

16%

Step-by-step explanation:

The indicated probability is actually the area under the standard normal curve to the left of the mean.  I used the function normalcdf( on my TI-83 Plus calculator to find this quantity:

normalcdf(-1000,85,90,5) = 0.1587.

Note #1:  This quantity (area / probability) is the area to the left of 85.

Note #2:  by the Empirical Rule, 68% of data lies within 1 s. d. of the mean, so the area between the mean (90) and the score (85) is half of 68%, or 34%.  Subtracting this from 50% (the area to the left of the mean), we get 16%, which is roughly equivalent to the 0.1587 we got earlier.  


7 0
4 years ago
How do you find domain and range in a graph.
Bezzdna [24]
You just find the domain and the range and that’s it!
8 0
3 years ago
Read 2 more answers
Dade County Public Schools
deff fn [24]
Thirty-four thousandths
4 0
3 years ago
Bill brought 8 shirts, 6 pairs of shorts and 3 pairs of shoes to camp. How many different outfits consisting of a shirt, a pair
Ilya [14]
144 outfits, I believe.

8 X 6 X 3= 144
3 0
3 years ago
Find the value of x:
slega [8]

Answer:

x = 20

Step-by-step explanation:

The sum of the 3 angles in a triangle = 180°

Using ΔAHC , then

∠ACH = 180 - (2x + 100) = 180 - 2x - 100 = 80 - 2x

∠ECD = ∠ACB ( vertical angles are congruent ), thus

∠ECD = ∠ACH + ∠HCB, that is

3x = 80 - 2x + x

3x = 80 - x ( add x to both sides )

4x = 80 ( divide both sides by 4 )

x = 20

7 0
4 years ago
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