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Vanyuwa [196]
3 years ago
11

A health survey determined the mean weight of a sample of 762 men between the ages of 26 and 31 to be 173 pounds, while the mean

weight of a sample of 1,561 men between the ages of 67 and 72 was 162 pounds. The difference between the mean weights is significant at the 0.05 level. Determine the meaning of this significance level.
Mathematics
1 answer:
Sladkaya [172]3 years ago
3 0

Answer:

Step-by-step explanation:

The difference in weights compared over the two different groups is significant and at 0.05 level of significance, the age of men is directly linked with their mean weight.

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Nataliya [291]

Answer:

x=34

Step-by-step explanation:

x+(x+12)+(100) = 180

2x+112=180

x=68

x=34

6 0
2 years ago
PLEASE HELP FAST...WILL MARK AS BRAINLIEST IF GIVEN GOOD ANSWER ​
EleoNora [17]

Answer:

I think it B

Step-by-step explanation:

Cause if we are looking for an angle that is approximately = to the coise B has no angle

3 0
3 years ago
I Need The Answer Plz!!! Geometry Is Hard!!
prohojiy [21]

Answer:

12√5

Step-by-step explanation:

According to the attached sketch, there are 2 triangles which we need to focus on, triangle A (in yellow) and triangle B (In red).

If you look at triangle A, we notice that X is the hypotenuse of triangle A. This means that X must be the largest length in triangle A, hence we can say that x must be greater than 24 (or 24 < x)

Now look at triangle B, in this case, they hypotenuse is 30 and x is the length of one of the sides. This means that x must be shorter than the hypotenuse (i.e x < 30)

from the 2 paragraphs above, we can see now that we can assemble an inequality in x

24 < x < 30

If we look at the choices, we can immediately ignore 33 because x must be less than 30,

working out the choices, we find that the only choice which falls into the range 24<x<30 is the 2nd choice 12√5  (= 26.83)  (which is the answer)

The last 2 choices give values smaller than 24 and are hence cannot be the answer

8 0
2 years ago
Order the numbers from greatest to<br> least.<br> 6.057, 6.125,6.38, 6.01, 6.03 , 6.57
Sergio039 [100]

Answer:

6.57, 6.38, 6.125, 6.057, 6.03, 6.01

7 0
2 years ago
use the graphing calculator to graph the quadratic function y = x2 − 5x − 36. Which value is a solution of 0 = x2 − 5x − 36?
daser333 [38]

The solutions of the quadratic equation x² - 5x - 36 = 0 are -4 and 9.

The graph is attached below.

  • We are given a quadratic function.
  • A polynomial equation of degree two in one variable is a quadratic equation.
  • The function given to us is :
  • y = x² - 5x - 36
  • We need to find the solution of the quadratic function.
  • To find the roots, let y = 0.
  • x² - 5x - 36 = 0
  • Use the quadratic formula.
  • In elementary algebra, the quadratic formula is a formula that gives the solution(s) to a quadratic equation.
  • x = [-b±√b²-4ac]/2a
  • x = [-(-5) ± √25 - 4(1)(-36)]/2(1)
  • x = (5 ± √25 + 144)/2
  • x = (5 ± √169)/2
  • x = (5 ± 13)/2
  • x = 9 or x = -4

To learn more about functions, visit :

brainly.com/question/12431044

#SPJ1

3 0
1 year ago
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