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Alecsey [184]
3 years ago
12

What is the measure of x?

Mathematics
2 answers:
Fed [463]3 years ago
7 0

Step-by-step explanation:

The sum of interior angles in a triangle is equal to 180 we can solve the question using this information

allsm [11]3 years ago
4 0
My mother my mother
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Marylou is blowing up a beach ball. The package says that the ball has a diameter of 12 inches. What is the volume of the beach
Pavlova-9 [17]

Answer:

Volume of a circle = approximatley 25.12

Step-by-step explanation:

1. Volume of a circle= 4/3*pi*radius

2. Radius equals 1/2 of diameter

3. 12/2=6

4. radius=6

5. 4/3*3.14*6=25.12

6. Volume of a circle = approximatley 25.12

5 0
3 years ago
X+3.6= −4.75<br><br> Solve for x <br><br> Tell what you did to find x
Drupady [299]

Answer:

x=3.85

brainliest plssssssss

Step-by-step explanation:

<u>Question:</u>

x+3.6= −4.75

<u />

<u>Step 1:</u>

<u>Subtract  3.6 from both sides of the equation</u>

x+3.6-3.6=-4.75-3.6

<u>Step 2:</u>

<u>Subtract the Numbers and simplify</u>

x=3.85

4 0
3 years ago
A news report states that the 99% confidence interval for the mean number of daily calories consumed by participants in a medica
expeople1 [14]

Answer:

The sample mean is of 1925 calories.

The margin of error is of 75 calories.

The sample standard deviation is of 109.7992 calories.

Step-by-step explanation:

Sample mean:

The sample mean is the mean value of the two bounds of the confidence interval. So

M = \frac{1850 + 2000}{2} = 1925

The sample mean is of 1925 calories.

The margin of error

Difference between the bounds and the sample mean. So

2000 - 1925 = 1925 - 1850 = 75 calories.

The margin of error is of 75 calories.

Sample standard deviation:

Here, I am going to expand on the t-distribution.

The first step to solve this problem is finding how many degrees of freedom, we have. This is the sample size subtracted by 1. So

df = 18 - 1 = 17

99% confidence interval

Now, we have to find a value of T, which is found looking at the t table, with 17 degrees of freedom(y-axis) and a confidence level of 1 - \frac{1 - 0.99}{2} = 0.995. So we have T = 2.898

The margin of error is:

M = T\frac{s}{\sqrt{n}}

In which s is the standard deviation of the sample and n is the size of the sample.

Since M = 75, T = 2.898, n = 18

M = T\frac{s}{\sqrt{n}}

75 = 2.898\frac{s}{\sqrt{18}}

s = \frac{75\sqrt{18}}{2.898}

s = 109.7992

The sample standard deviation is of 109.7992 calories.

6 0
2 years ago
A storé is offering a 20% discount on all items. Write an equation for the relationship between the discount price of an item, d
prisoha [69]

Answer:

There are many ways you can write this as an equation:

d=p-20 %%

d=.8p

d=p-.2p

5 0
3 years ago
Henry steps onto an elevator at the first floor. He goes up to the 9th floor and then comes down 2 floors. He then goes up 4 flo
dimaraw [331]

Answer:

D

Step-by-step explanation:

8 0
3 years ago
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