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4 years ago

Round to two decimal places

Mathematics

1 answer:

Fantom [35]4 years ago

6 0

Answer:

D. 0.43, because 13 of the 30 days were cloudy

Step-by-step explanation:

The fist thing that you should do is divide 100 by 30. We will do this so taht our percentages add up to 100. When we do this we get 3.333. Next we need to multiply this by the nubert of cloudy days 13 to get the answer D.

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WILL MARK BRAINLIEST IF CORRECT PLS HELP

Fed [463]

The answer is B

A proper ratio table would be the same ratio in every row

1:4 is the start
3:12 can simplify to 1:4
6:24 can simplify to 1:4

6 0

3 years ago

Help me please thank youu ❤️

Nata [24]

Answer: $5^6=15,625$

Step-by-step explanation:

To solve this exercise it is important to remembet the definition Definition of a Logarithm:

If $x >0$ and, $b>0,$ $b\neq 1$ , then $y = log_bx$ is equivalent to $b^y=x$ (which is the exponential form).

Knowing this definition and having the following logarithmic equation:

$6=log_515,625$

You can identify that:

$b=5\\y=6\\x=15,625$

Therefore, susbtituting values into $b^y=x$ , you can rewrite this equation as an exponential equation. Then:

$5^6=15,625$

7 0

4 years ago

You are to take a multiple-choice exam consisting of 64 questions with 5 possible responses to each question. Suppose that you h

stepan [7]

Answer:

(a) The expected score is 12.8

(b) The standard deviation is 3.2 and variance is 10.24

Step-by-step explanation:

Consider the provided information.

You are to take a multiple-choice exam consisting of 64 questions with 5 possible responses to each question.

Here n=64 p=1/5 and q=1-1/5=4/5

Part (a) we need to find the expected score on the exam.

Expected = np

Expected score = number of questions × P(right)

$Score = 64 \times \frac{1}{5} = 12.8$

Hence, the expected score is 12.8

Part (b) Compute the variance and standard deviation of x.

Standard Deviation: $\sigma =\sqrt{npq}$

Now calculate the standard deviation as shown:

$\sigma =\sqrt{64\times \frac{1}{5}\times \frac{4}{5}}$

$\sigma =\sqrt{\frac{256}{25}}$

$\sigma =\frac{16}{5}=3.2$

Variance: $\sigma^2 =npq$

$\sigma^2 =64\times \frac{1}{5}\times \frac{4}{5}$

$\sigma^2 =\frac{256}{25}$

$\sigma^2 =10.24$

Hence, the standard deviation is 3.2 and variance is 10.24

5 0

4 years ago

Write the phrase as a unit rate. 452.5 miles on 12.5 gallons of gasoline.

vovangra [49]

452 miles on 12.5 gallons = 452 miles / 12.5 gallons

= 36.16 miles / gallon

8 0

3 years ago

In mr. Ochoas mathematics class, 1/2 of the students received as and 1/6 received bs. What fraction of the student received eith

Contact [7]

Answer:1/3

Step-by-step explanation:

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3 years ago