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2 years ago

PLEASE HELP MEEEEEEEEEEEEE

Mathematics

1 answer:

sladkih [1.3K]2 years ago

4 0

The answer is
a.0.66

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A gym charges $45 per month and a $75 one-time starting fee. Which of these will show how much it costs to join the gym for one

Sauron [17]

Answer: 615

Step-by-step explanation: you take the 45 times 12 months plus the 75 for the one time fee.

4 0

3 years ago

Read 2 more answers

Suppose 40% of the students in a university are baseball players. If a sample of 781 students is selected, what is the probabili

3241004551 [841]

Answer:

$P(p>0.43) = 0.0436$

Step-by-step explanation:

Given

$p = 40\%$ -- proportion of baseball players

$n = 781$ --- selected sample

Required

Determine P(p>43%)

First, calculate the z score using:

$Z = \frac{\^{p}-p}{\sqrt{\frac{p(1-p)}{n}}}$

This gives:

$Z = \frac{48\%-40\%}{\sqrt{\frac{40\% *(1 - 40\%)}{781}}}$

Convert % to decimal

$Z = \frac{0.43-0.40}{\sqrt{\frac{0.40 *(1 - 0.40)}{781}}}$

$Z = \frac{0.43-0.40}{\sqrt{\frac{0.40 *0.60}{781}}}$

$Z = \frac{0.43-0.40}{\sqrt{\frac{0.24}{781}}}$

$Z = \frac{0.03}{\sqrt{0.00030729833}}$

$Z = \frac{0.03}{0.01752992669}$

$Z = 1.71$

So:

$P(p>0.43) = P(Z>1.71)$

$P(p>0.43) = 1 - P(Z$

$P(p>0.43) = 1 - 0.9564$

$P(p>0.43) = 0.0436$

5 0

3 years ago

Please Help!!!!!!!!!!

Elodia [21]

Answer:

letter a

Step-by-step explanation:

0.3 + 0.4= 0.8

3 0

3 years ago

HELP PLEASE!!!Area of the base=

HACTEHA [7]

Answer:

the answer is c

Step-by-step explanation:

5 0

3 years ago

I’m really struggling would really appreciate if someone could help!!!!!

ladessa [460]

9514 1404 393

Answer:

A) 29/40

Step-by-step explanation:

The formula for this is ...

P(A or B) = P(A) + P(B) - P(A and B)

Filling in the given values, you have ...

P(A or B) = 9/20 +1/2 - 9/40

P(A or B) = 18/40 +20/40 -9/40 = (18+20-9)/40

P(A or B) = 29/40 . . . . matches choice A

7 0

3 years ago