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3 years ago

Some one please HeLp and explain

Mathematics

1 answer:

mihalych1998 [28]3 years ago

3 0

Answer:

2nd option

Step-by-step explanation:

You're goal is to isolate b by itself. The only part you need to worry about is the equation, the rest of the word problem is irrelevant.

The whole process of solving this is to do PEMDAS in reverse.

So first add/subtract all the values that does not have a b attach to it to the other side.

then multiply/divide all the values that is not a b to get the b-value by itself

You might be interested in

Running times for 400 meters are Normally distributed for young men between 18 and 30 years of age with a mean of 93 seconds and

Luda [366]

Answer:

C. 45 and 141 seconds

Step-by-step explanation:

The Empirical Rule states that, for a normally distributed random variable:

68% of the measures are within 1 standard deviation of the mean.

95% of the measures are within 2 standard deviation of the mean.

99.7% of the measures are within 3 standard deviations of the mean.

In this problem, we have that:

Mean = 93 seconds

Standard deviation = 16 seconds

99.7% of running times are approximately between:

By the Empirical rule, within 3 standard deviations of the mean, so between 3 standard deviations below the mean and 3 standard deviations above the mean

3 stnadard deviations below the mean

93 - 3*16 = 45 seconds

3 standard deviations above the mean

93 + 3*16 = 141 seconds

The correct answer is:

C. 45 and 141 seconds

3 0

3 years ago

On a Saturday, Saul can cut 4 lawns in 6 hours. If Mitch can mow lawns at the same rate, how long will it take him to mow 9 lawn

alukav5142 [94]

Answer:

13 1/2 this is the answer

6 0

2 years ago

Round 249798.828806 to the nearest ten.

loris [4]

Answer:

249798.8

Step-by-step explanation:

It should say to the nearest tenth.

6 0

2 years ago

Simplify this radical. V84

Yanka [14]

Answer:

$2\sqrt{21}$

Step-by-step explanation:

84/4=21

Square root of 4=2

$2\sqrt{21}$

8 0

3 years ago

HELP ASAP I WILL GIVE BRAINLIST

VikaD [51]

Answer:

33.51 cm

Step-by-step explanation:

240/360 = 2/3 (Arc length is 2/3 of the total circumference)

C = 2 $\pi$ r ( Calculate the total circumference)

C = 2(8) $\pi$

C = 50.265

2/3(50.265) (Take 2/3 of the circumference. times 2 divide by 3)

33.51

Use a calculator and leave the answer to C and then multiply and divide. You get a more precise answer.

6 0

3 years ago

Some one please HeLp and explain ​

Some one please HeLp and explain