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zysi [14]
3 years ago
15

I don't get it, how do I do it?​

Mathematics
1 answer:
alexandr402 [8]3 years ago
5 0

Answer:

??

Step-by-step explanation:

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The profits of life insurance companies A and B are normally distributed with the same mean. The variance of company B's profit
Lerok [7]

Answer:

23.58-th

Step-by-step explanation:

The standard deviation of company B's profit is:

\sigma_B=\sqrt{2.25}\sigma_A

Let X be the profit correspondent to the 14th percentile of company A's profit.

The z-score for 14th percentile of a normal distribution is roughly -1.08.

The z-scores for X in companies A and B are:

-1.08 = \frac{X-\mu}{\sigma_a} \\z_B = \frac{X-\mu}{\sqrt{2.25}*\sigma_a}\\z_B=\frac{-1.08}{\sqrt{2.25}}\\z_B = -0.72

The z-score for X in company B's profit distribution is -0.72, which corresponds to the 23.58-th percentile.

8 0
3 years ago
AWARDING DOUBLE POINTS question in pic, will report anything other than the answer
mash [69]

Answer:

m∠R is 72°

Step-by-step explanation:

In the given figure

∵ ΔPQR ≅ ΔUVW

→ From congruency

∵ m∠P = m∠U

∵ m∠Q = m∠V

∴ m∠R = m∠W

∵ m∠R = (10x - 18)°

∵ m∠W = 8x°

∵ m∠R = m∠W

→ Equate their measures

∴ 10x - 18 = 8x

→ Add 18 to both sides

∵ 10x - 18 + 18 = 8x + 18

∴ 10x = 8x + 18

→ Subtract 8x from both sides

∴ 10x - 8x = 8x - 8x + 18

∴ 2x = 18

→ Divide both sides by 2 to find x

∴ x = 9

→ Substitute the value of x in the m∠R

∵ m∠R = 10(9) - 18

∴ m∠R = 90 - 18

∴ m∠R = 72°

∴ m∠R is 72°

7 0
3 years ago
Does anyone know the answer
lesya [120]
If the square translates to 7 units on the right and 6 units downwards, the following changes will be made:
 
Point S will have the coordinates of (3, -5).

Point R will have the coordinates of (-1, -5).

Point U will have the coordinates of (-1, -9).

Point  T will have the coordinates of (3, -9).

According to the only answer choices in the picture, only (-5, -3) is the only point that lies on a side of the pre-image, square RSTU.
5 0
3 years ago
Consider the explicit formula A(n) = 3/2 + 1/2(n-1)<br> 1a : Write the formula in function notation.
aleksandr82 [10.1K]

Answer:

i don't know this one!

Step-by-step explanation:

sorry!

6 0
2 years ago
The number of calories burned while jogging varies directly with the number of minutes spent jogging. If george burns 150 calori
IRISSAK [1]
He will burn 225 calories. if you divide 150/20 it will equal 7.5 then multiply 7.5 by 30 and you’ll get 225
7 0
3 years ago
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