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Misha Larkins [42]
3 years ago
12

Please help . I’ll mark you as brainliest if correct

Mathematics
1 answer:
timurjin [86]3 years ago
7 0

I believe that the length of the long piece is 30 m, I might not be right though

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Which is greater, - 5¼ or -5⅓
lana [24]

Answer:

-51/4 is greater

Step-by-step explanation:

7 0
3 years ago
Use the confidence interval to find the estimated margin of error. Then find the sample mean. A biologist reports a confidence i
mash [69]

Complete Question

A biologist reports a confidence interval of (3.5,4.9) when estimating the mean height (in centimeters) of a sample of seedlings. What is the estimated margin of error and the sample mean?

Answer:

The  margin of error is  E = 0.7

The  sample mean is  \=  x  =  4.2

Step-by-step explanation:

from the question we are told that

   The  upper limit is  k  =  4.9

    The  lower limit is  r = 3.5

Generally the margin of error is mathematically represented as

      E =  \frac{k - r}{ 2}

      E = \frac{ 4.9  -  3.5 }{2}

     E = 0.7

Generally the sample mean is mathematically evaluated as

        \=  x = k  -  E

=>    \= x  =  4.9 - 0.7

=>    \=  x  =  4.2

4 0
3 years ago
A cube has a volume of 125 cubic inches. What is the length of each edge?
Phantasy [73]

Answer:

1.95

Step-by-step explanation:

8 0
3 years ago
Asap - i need help like asap so if someone knows can you help me??
lisov135 [29]

Answer:

6) B distributive property 7) B distributive property 8) C associative property

Step-by-step explanation:

5 0
3 years ago
2-5(h+3)=-28 What does h equal? SHOW YOUR WORK
fiasKO [112]

3(x+1) = 2(x-8) + 3. First, remove the parentheses by distributing (multiplying out the numbers):


3x + 3 = 2x - 16 + 3.

Then, combine any like terms on the same side of the equals sign;


3x + 3 = 2x -13.

Then, move the like terms on opposite sides of the equals sign to the same side of the equals sign (don't forget to change the signs)..


3x -2x = -13 - 3.

Then combine the like terms on the same side of the equals sign again.. x = -16 .

6 0
4 years ago
Read 2 more answers
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