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3 years ago

What is 15 minutes before 4:35? what time would that be? pls answer today!!!

Mathematics

2 answers:

ahrayia [7]3 years ago

8 0

Answer:

4:20

Step-by-step explanation:

Andrews [41]3 years ago

7 0

Answer:

4:20

Step-by-step explanation:

35-15= 20

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A base angle of an isosceles triangle measures 30, and the length of one of the legs is 12. What is the length of the altitude d

AfilCa [17]

Answer: 6

Step-by-step explanation:

From the question, a base angle of isosceles triangle is 30°.We are also informed that one of the legs is 12. The altitude is opposite to the angle having a measure of 30°. The hypoteneous in the right angled triangle which is formed by drawing the altitude is 12. This will be calculated as:

Sin = opposite/hypotenuse

Sin 30°=length of the altitude/12

Note that sin 30° = 0.5

0.5 = length of the altitude/12

length of the altitude = 12 × 0.5

Hence, length of altitude = 6

5 0

3 years ago

Lesson Check (4.MD.C.7)

vredina [299]

The measure of Zx is 4

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3 years ago

A group of tourists spends $168 to rent snorkels and fins. A total of 10 snorkels and 12 pairs of fins are rented. Renting a sno

allsm [11]

The snorkel costs $12 to rent!

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3 years ago

According to a recent publication, the mean price of new mobile homes is $63 comma 800. Assume a standard deviation of $7900.

wolverine [178]

Answer:

a. For n=25, the mean and standard deviation of the prices of the mobile homes all possible sample mean prices are $63,800 and $1,580, respectively.

b. For n=50, the mean and standard deviation of the prices of the mobile homes all possible sample mean prices are $63,800 and $1,117, respectively.

Step-by-step explanation:

In this case, for each sample size, we have a sampling distribution (a distribution for the population of sample means), with the following parameters:

$\mu_s=\mu=63,800\\\\\sigma_s=\sigma/\sqrt{n}=7,900/\sqrt{n}$

For n=25 we have:

$\mu_s=\mu=63,800\\\\\sigma_s=\sigma/\sqrt{n}=7,900/\sqrt{25}=7,900/5=1,580$

The spread of the sampling distribution is always smaller than the population spread of the individuals. The spread is smaller as the sample size increase.

This has the implication that is expected to have more precision in the estimation of the population mean when we use bigger samples than smaller ones.

If n=50, we have:

$\mu_s=\mu=63,800\\\\\sigma_s=\sigma/\sqrt{n}=7,900/\sqrt{50}=7,900/7.07=1,117$

4 0

3 years ago

Which fraction is equal to 60%?

trasher [3.6K]

Answer:

Step-by-step explanation:

$60\% =\\\\\frac{60}{100} \\=0.6$

4 0

3 years ago

Read 2 more answers