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olga nikolaevna [1]
2 years ago
12

Help me asap …………..p

Mathematics
1 answer:
borishaifa [10]2 years ago
5 0

Answer:

1.) Tan C = \frac{12}{5}

2.) Sin Z = \frac{24}{26} or \frac{12}{13} if reduced

3.) Cos A = \frac{15}{17}

4.) Cos A = \frac{12}{37}

Step-by-step explanation:

Let's keep in mind that;

Sin = \frac{opposite}{hypotenuse}

Cos = \frac{adjacent}{hypotenuse}

Tan = \frac{opposite}{adjacent}

Hope this helps!

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HELP!!! It’s due is 20 minutes
Zinaida [17]

Answer:

B

Step-by-step explanation:

33.8 Rounded

Use Pythagorean theorem :)

Brainliest?

4 0
3 years ago
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Assume that the distribution of weights of adult men in the United States is normal with mean 190 pounds and standard deviation
avanturin [10]

Answer:

182.41

Step-by-step explanation:

Problems of normally distributed samples are solved using 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.

In this problem, we have that:

\mu = 190, \sigma = 30

40th percentile

Value of X when Z has a pvalue of 0.4. So X when Z = -0.253.

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

-0.253 = \frac{X - 190}{30}

X - 190 = -0.253*30

X = 182.41

So the answer is 182.41.

5 0
3 years ago
With a capacity of 6,300 people, Royal Caribbean’s Oasis of the Seas is the world’s largest cruise ship. The average beer consum
Mariulka [41]

Step-by-step explanation:

Mean = 81740

Standard deviation = 4590

Sample size = 15

Alpha level = 1-0.95 = 0.05

Df = 15-1 = 14

Critical value:

alpha/2 = 0.05/2 = 0.05

t0.025

t critical value = 2.145

Margin of error ME

2.145 x 4590/√15

2.145 x 4590/3.873

ME = 2542.09

Confidence interval

Lower CI = mean - ME

= 81740-2542.09

= 79197.91

Upper CI = mean + ME

= 81740+2542.09

= 84282.09

[ 79197.91, 84282.09]

B.

Using excel, exact answer for CI

Lower limit = 79198.142724212173

Upper limit = 84281.8572757827

C.

The assumptions to be made from the population are that

1. Samples are random

2. These samples are gotten from an approximately normal distribution

6 0
3 years ago
Jamal hiked on two trails. The first trail was 7 1/3 miles long, and the second trail was 1 9/11 times as long as the first trai
algol [13]

9514 1404 393

Answer:

  20 2/3 miles

Step-by-step explanation:

Altogether Jamal hiked 1 + 1 9/11 times the length of the first trail:

  (2 9/11)(7 1/3) = (31/11)(22/3) = 62/3 = 20 2/3

Jamal hiked 20 2/3 miles.

7 0
3 years ago
3. Jada has a coin jar containing n nickels and d dimes worth a total of $3.65. The
Ghella [55]

Answer:

C

Step-by-step explanation:

Here, we want to find an equation in the options which is same as the equation given in the question;

The equation we are testing against is;

0.05n + 0.1d = 3.65

What we can do here is divide through by 0.01

So we will have;

0.05n/0.01 + 0.1d/0.01 = 3.65/0.01

= 5n + 10d = 365

3 0
3 years ago
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