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antiseptic1488 [7]
3 years ago
11

8 - 3(k + 2) = 2-3k

Mathematics
1 answer:
Rus_ich [418]3 years ago
5 0

Answer:

Any value of  k  makes the equation true.  

All real numbers

Interval Notation:

( − ∞ , ∞ )

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\The lengths of a lawn mower part are approximately normally distributed with a given mean Mu = 4 in. and standard deviation Sig
chubhunter [2.5K]

Answer:

68.26% of the parts will have lengths between 3.8 in. and 4.2 in.

Step-by-step explanation:

The lengths of a lawn mower part are approximately normally distributed

\mu = 4

Standard deviation =\sigma =0.2

We are supposed to find  What percentage of the parts will have lengths between 3.8 in. and 4.2 in . i.e. P(3.8<x<4.2)

Formula : Z=\frac{x-\mu}{\sigma}

At x = 3.8

Z=\frac{3.8-4}{0.2}

Z=-1

Refer the z table for p value

p value =0.1587

At x =4.2

Z=\frac{4.2-4}{0.2}

Z=1

Refer the z table for p value

p value =0.8413

P(3.8<x<4.2)=P(x<4.2)-P(x<3.8)=0.8413-0.1587=0.6826

So, 68.26% of the parts will have lengths between 3.8 in. and 4.2 in.

3 0
3 years ago
HELP PLS PLS PLS PLS PLS z
alina1380 [7]

Answer:

126

Step-by-step explanation:

I got a protracter

7 0
2 years ago
HELP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
fiasKO [112]

Answer:

Step-by-step explanation

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4 0
3 years ago
What is the following expression when simplified 5x + 8(5 + 2x)?
denpristay [2]

Answer:

5x+56

Step-by-step explanation:

5x+8(5+2)

5x+8(7)

6 0
3 years ago
Read 2 more answers
What is the range for the scores: 13, 23, 60, 46, 53, 75.
vova2212 [387]
Hello there.

Question: <span>What is the range for the scores: 13, 23, 60, 46, 53, 75.

Answer: Range is the largest value minus the smallest answer:
75 - 13 = 62.
The range is 62.

Hope This Helps You!
Good Luck Studying ^-^</span>
6 0
3 years ago
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