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anzhelika [568]
3 years ago
14

So guys,im stuck,sorry for being a stupid person ;;

Mathematics
2 answers:
Genrish500 [490]3 years ago
4 0

Answer:

48 cm

Step-by-step explanation:

The surface area of an object will be all of it's side area's added up.

Looking at this, we can see that there are 4 sides with side lengths 2 and 5, and 2 with side lengths 2 and 2.

The area of a rectangle is it's length times width.

2 \cdot 5 = 10

Since there are 4 of these sides:

10\cdot4 = 40.

2\cdot 2 = 4

Since there are two of these sides:

4 \cdot 2 = 8.

40 + 8 =48

Hope this helped!

jeyben [28]3 years ago
3 0

the answer 48

Step-by-step explanation:

take 4×2=8 take 8+40 and it equals 48

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The class sizes of elementary school classes in a public school district are normally distributed with an unknown population mea
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Answer: (17.14,\ 22.86)

Step-by-step explanation:

The confidence interval estimate for the population mean is given by :-

\overline{x}\pm ME, where \overline{x} is the sample mean and ME  is the margin of error.

Given : Sample mean: \overline{x}=20

The margin of error for a 98% confidence interval estimate for the population mean using the Student's t-distribution : ME=2.86

Now, the confidence interval estimate for the population mean will be :-

20\pm2.86=(20-2.86,\ 20+2.86)=(17.14,\ 22.86)

Hence, the 98% confidence interval estimate for the population mean using the Student's t-distribution =  (17.14,\ 22.86)

8 0
3 years ago
Meredith has $630,000 she wants to save. If the FDIC insurance limit per
Viefleur [7K]

Answer:

$200,000 in bank A, $200,000 in bank B, $230,000 in bank C

Step-by-step explanation:

Meredith has $630,000

Limit per depositor, per bank, is $250,000

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A. $200,000 in bank A, $200,000 in bank B, $230,000 in bank C

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B. $200,000 in bank A, $170,000 in bank B, $260,000 in bank C

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you

Also, her deposit in bank C exceeds $250,000, so there is no guarantee for insurance in bank C

The way her money can be distributed between three Banks and guarantee insurance is

A. $200,000 in bank A, $200,000 in bank B, $230,000 in bank C.

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4qu, when q= 5 and u = 7
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Answer:

140

Step-by-step explanation:

Substitute q = 5 and u = 7 into the expression

4qu

= 4 × 5 × 7 = 20 × 7 = 140

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