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3 years ago

What is the sum of 6 feet 10 inches and 8 feet 9 inches

2 answers:

5 0

15 ft 7 inches

Here are the steps to doing this,

1. Write out

6 ft 10 inches
+ 8 ft 9 inches
-------------------------

2. Add the inches first, 10 + 9 = 19
3. Next, add the feet,

6 + 8 = 14

What you have is 14 feet 19 inches
Hopefully, you know that 12 inches is equivalent to one foot.

4. Subtract 12 from 19, and you get 7.
5. Your answer is 15 feet 7 inches

Hope this helps!

sertanlavr [38]3 years ago

3 0

The answer is 15 foot 7 inches or 187 inches.

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A sample with a mean of m = 40 and a variance of s2 = 20 has an estimated standard error of 1 point. how many scores are in the

tamaranim1 [39]

The correct option is 20.

The score found for the sample is 20.

<h3>What is Standard error?</h3>

A standard error is a statistic that is applied to test the distribution of data. This metric is comparable to standard deviation. We can calculate the standard error if we know the sample size & standard deviation. It assesses the mean's precision.

Now, according to the question;

Sample mean; $\bar{x}=40$

Sample variance; $s^{2}=20$

Thus, $s=\sqrt{20}=4.47$

Standard error SE = 1

The amount of scores with in sample must be determined here.

The standard error formula is as follows:

$S E=\frac{s}{\sqrt{n}}$

We might rearrange the formula as follows:

$\begin{aligned}\sqrt{n} &=\frac{s}{S E} \\n &=\left(\frac{s}{S E}\right)^{2}\end{aligned}$

Substituting the values;

$\begin{aligned}&n=\left(\frac{4.47}{1}\right)^{2} \\&n=19.98\end{aligned}$

The sample's number of scores n = 19.98 = 20 (round up)

Therefore, the scores are in the sample is 20.

To know more about the Standard error, here

brainly.com/question/14467769

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3 0

1 year ago

Consider a graph of the equation y = −3x + 4. What is the y-intercept?

Murrr4er [49]

Y = -3x + 4
In y = mx + b form, the y intercept will be in the b position.

y = mx + b
y = -3x + 4......so ur y intercept is 4.....or (0,4)

just so u know....in y = mx + b form, the slope will be in the m position....so ur slope would be -3

5 0

3 years ago

Read 2 more answers

The ball park is selling a hamburger combo. At the end of the day, they collected $103.95. If a total of 21 hamburger combos wer

Evgesh-ka [11]

Answer:

Each combo costed $4.95

Step-by-step explanation:

To solve, simply divide 103.95 by 21, and then put a dollar sign. (Most teachers would count no dollar sign as incorrect/points off, so don't forget it!)

103.95 ÷ 21 = 4.95 → $4.95

<em>Hope this helps!</em>

5 0

2 years ago

at an amusement park, 60% of the people were adults, and the rest were children. there were 720 adults. how many people were at

PIT_PIT [208]

There was 288 children at the amusement park.

4 0

2 years ago

4,5,10,8,4,8,7,6 range

kati45 [8]

10 meaning the biggest number and then subtract by 4 since it’s the lowest number and you get 6.