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nevsk [136]
3 years ago
11

I need need help with this problem ASAP please!

Mathematics
1 answer:
Vinvika [58]3 years ago
3 0
The answer is B I believe
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A rectangle has a width of 6 inches and a perimeter of 26 inches. What is the length of the rectangle?
labwork [276]

Answer:

Length = 7 inches

Step-by-step explanation:

Perimeter = 2L+2W

Perimeter = 26

W = 6

Plug these in: 26=2L + 2*6 ; 26 = 2L + 12

Subtract 12 from both sides.

26-12 = 2L +12 -12 ; 14 = 2L

Devide by 2

14/2 = 2L/2

L=7


3 0
3 years ago
Lara baked a pan of brownies for a potluck. The number of squares she cuts the brownies into will depend on the number of people
Feliz [49]

Answer: i would say s

Step-by-step explanation:

i hope this helps

7 0
2 years ago
Who painted the larger fraction of their ceiling?
olga_2 [115]
Well the person who painted 1/2 did. 
7 0
3 years ago
Heights of Women. Heights of adult women are distributed normally with a mean of 162 centimeters and a standard deviation of 8 c
Bogdan [553]

Answer:

a) 6.68% of heights less than 150 centimeters

b) 58.65% of heights between 160 centimeters and 180 centimeters

Step-by-step explanation:

When the distribution is normal, we use the z-score formula.

In a set with mean \mu and standard deviation \sigma, the zscore of a measure X is given by:

Z = \frac{X - \mu}{\sigma}

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

In this question, we have that:

\mu = 162, \sigma = 8

a) The percentage of heights less than 150 centimeters

We have to find the pvalue of Z when X = 150. So

Z = \frac{X - \mu}{\sigma}

Z = \frac{150 - 162}{8}

Z = -1.5

Z = -1.5 has a pvalue of 0.0668

6.68% of heights less than 150 centimeters

b) The percentage of heights between 160 centimeters and 180 centimeters

We have to find the pvalue of Z when X = 180 subtracted by the pvalue of Z when X = 160.

X = 180

Z = \frac{X - \mu}{\sigma}

Z = \frac{180 - 162}{8}

Z = 2.25

Z = 2.25 has a pvalue of 0.9878

X = 160

Z = \frac{X - \mu}{\sigma}

Z = \frac{160 - 162}{8}

Z = -0.25

Z = -0.25 has a pvalue of 0.4013

0.9878 - 0.4013 = 0.5865

58.65% of heights between 160 centimeters and 180 centimeters

7 0
3 years ago
What is the value of 2c + d² - 3e + 4f when c = 3, d = 5, e = 6, and f = 1?
Andrej [43]

Answer:

17

Step-by-step explanation:

2c + d^3 - 3e +4f

=2(3) + (5^2) - 3(6) + 4(1)

=6+25-18+4

=17

5 0
3 years ago
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