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sveticcg [70]
3 years ago
8

50 points! Mhanifa please help! Everyone is putting random answers when I post a question and I need this done asap! DONT ANSWER

IT IF YOU DONT KNOW IT GUYS

Mathematics
2 answers:
Genrish500 [490]3 years ago
6 0

Answer:

  • x = 26°

Step-by-step explanation:

The first two questions are answered here

  • brainly.com/question/21794653
<h3>Question 3</h3>

Use the equation for exterior angle

<u>Exterior angle  = sum of non-adjacent interior angles</u>

  • 5x - 2 = 2x + 76
  • 5x - 2x = 76 + 2
  • 3x = 78
  • x = 26
Firdavs [7]3 years ago
3 0

Answer:

x = 26° degrees the work bellow is correct i double checked it :)

Step-by-step explanation:

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A study suggested that childrenbetween the ages of 6 and 11 in the US have anaverage weightof 74 lbs. with a standard deviation
Doss [256]

Answer:

The proportion of children in this age range between 70 lbs and 85 lbs is of 0.9306.

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.

A study suggested that children between the ages of 6 and 11 in the US have an average weightof 74 lbs, with a standard deviation of 2.7 lbs.

This means that \mu = 74, \sigma = 2.7

What proportion of childrenin this age range between 70 lbs and 85 lbs.

This is the pvalue of Z when X = 85 subtracted by the pvalue of Z when X = 70. So

X = 85

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

Z = \frac{85 - 74}{2.7}

Z = 4.07

Z = 4.07 has a pvalue of 1

X = 70

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

Z = \frac{70 - 74}{2.7}

Z = -1.48

Z = -1.48 has a pvalue of 0.0694

1 - 0.0694 = 0.9306

The proportion of children in this age range between 70 lbs and 85 lbs is of 0.9306.

7 0
2 years ago
Please please please help me!!!!!!
soldier1979 [14.2K]

Answer:

Step-by-step explanation:

Use Pythagorean theorem.

c^2 = a^2+b^2

c^2 = 4^2+6^2

c^2 = 16+36

c^2 = 52

c = √52 = 7.21

7 0
3 years ago
So this is for my geometry I'm trying to work on my review and I'm hoping that maybe one of you guys out here could help me with
alukav5142 [94]
Sorry it’s not that neat but I think the answer would be in the exact surd form root 233

7 0
2 years ago
Express the area of the entire rectangle​
Travka [436]

Answer: x^2 +6x +2x +36 = X^2 +8x + 36

Step-by-step explanation:

3 0
2 years ago
Read 2 more answers
I need help on this I don’t get it
levacccp [35]

Answer:

picture: the one with the triangle in red on the base (first picture of box)

Equation: a^2 + 11^2 = c^2

Step-by-step explanation:

as we can see for the first one, the equation we see is 20^2 + 8^2 = c^2, so you look for the picture with those numbers on the triangle.

and to find the equation we look at the picture and see that in the triangle the numbers are 11 and a. And we know the equation has to be 11^2 + a^2 = c^2 And see if that equation is there

5 0
3 years ago
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