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Oksi-84 [34.3K]
3 years ago
5

Which statements are true?

Mathematics
1 answer:
Murrr4er [49]3 years ago
4 0

Answer:

All squares are parallelograms, and all rectangles are quadrilaterals are both true

Step-by-step explanation:

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The yearbook club had a meeting. The meeting had 8 people, which is one-fourth of the club. How many people are in the club?
nataly862011 [7]

Answer:

32

Step-by-step explanation:

Since we know 8 = 1/4

We can convert the 1/4 into a percentage:

8 = 25%

To get to 100% which is the full club we have to multiply both sides by 4:

8×4 = 25% ×4

32 = 100%

So there are 32 people in the club.

4 0
2 years ago
Five times the sum of a number and 3 is equal to twenty
drek231 [11]

5x3 is ur answer!!!! :)

7 0
3 years ago
Read 2 more answers
Solve the equation by factoring. x2+6x-16=0
posledela

Answer:

hi dear, the answer is option D, {-8,2}

4 0
2 years ago
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The range of three numbers is 17.the mode is 24 and the median is 24 ? What are the three numbers?
vivado [14]

The answer is 7, 24, 24.

The median is the middle number.

The mode is the number which occurs the most.

The range is the difference between the largest number and the smallest number.

Since 24 is the middle number, it is the median.

Since 24 is also the number which occurs the most often, it is also the mode.

To find range, do 24-7 which is equal to seventeen.

<em>Hope it helps</em>


3 0
3 years ago
Read 2 more answers
A physician wants to develop criteria for determining whether a patient's pulse rate is atypical, and she wants to determine whe
valkas [14]

Answer:

a) 66.1 < μ < 82.7

b) 71.9 < μ < 97.7

c) D. No, because the two confidence intervals overlap, we cannot conclude that the two population means are different.

Step-by-step explanation:

Confidence interval is given by the formula

M±t×(\frac{s}{\sqrt{N} }) where

  • M is the sample mean
  • t is the corresponding t value for 95 confidence level
  • s is the sample standard deviation
  • N is the sample size

<u>a. Construct a 95% confidence interval estimate of the mean pulse rate for males.</u>

For men:

M=74.4 t=2.262 s=11.6207 N=10 then confidence interval is:

74.4±2.262×(\frac{11.6207}{\sqrt{10 } }) ≈ 74.4±8.3

<u>b. Construct a 95% confidence interval estimate of the mean pulse rate for females.</u>

For women:

M=84.8 t=2.262 s=18.0488 N=10 then confidence interval is:

84.8±2.262×(\frac{18.0488 }{\sqrt{10 } }) ≈ 84.8±12.9

<u>c. Compare the preceding results. Can we conclude that the population means for males and females are different?</u>

Difference of Population means for males and females are not statistically significant, since confidence intervals overlap.

<u />

4 0
3 years ago
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