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sweet [91]
3 years ago
13

Question B help me please

Mathematics
1 answer:
stira [4]3 years ago
3 0

12, 54, 90 is the correct answer I got it right

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PLEASE ANSWER ASAP FOR BRAINLEST!!!!!!!!!!!!!!!!!!!!!!!
TEA [102]

Answer:12.5

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Mr. Wolfe builds a new deck in the shape shown below. Explain how to find the area of the deck, and solve.
kifflom [539]

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144

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coldgirl [10]

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​claim: the mean pulse rate​ (in beats per​ minute) of adult males is equal to 69 bpm. for a random sample of 140 adult​ males,
zaharov [31]

Answer:

93.19%

Step-by-step explanation:

We have that the mean (m) is equal to 70.4, the standard deviation (sd) 11.1 and the sample size (n) = 140

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For this, the first thing is to calculate z, which is given by the following equation:

z = (x - m) / (sd / (n ^ 1/2))

We have all these values, replacing we have:

z = (69 - 70.4) / (11.1 / (140 ^ (1/2)))

z = 1.49

With the normal distribution table (attached), we have that at that value, the probability is:

P (z <1.49) = 0.9319

The probability is 93.19%

8 0
3 years ago
A swimming pool is 50 metres long and 25 metres wide. How many lengths of the pool will a competitor in a 1500 metre race have t
GarryVolchara [31]
<h3>Answer:  30</h3>

Reason:

I'm assuming that the swimmer travels along the 50 meter side

Divide 1500 over 50 to get 1500/50 = 30, which tells us that the swimmer must make 30 trips.

7 0
1 year ago
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