Ask question

Ask question

All categories

3 years ago

10

The model builder has 4 pieces of balsa wood that are 4 cm, 5 cm, 6 cm, and 7 cm length. How many different combinations of 3 pi

eces can be used to make triangles without breaking or cutting the pieces? List the combinations as inequalities

1 answer:

s2008m [1.1K]3 years ago

7 0

About 22 i think hope it helps in any way

You might be interested in

What is the significance of the Mayflower<br> Compact?

Serga [27]

Answer:

The Mayflower Compact was important because it efficiently was the first official document to establish self-government in the New World. It carried on being active until 1691 when Plymouth Colony became part of the Massachusetts Bay Colony.

5 0

3 years ago

Read 2 more answers

Simplify the radical expression. Use absolute value symbols if needed.

sergejj [24]

Answer: CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC

Step-by-step explanation: HOPE IT HELPS YOU

8 0

3 years ago

Which of the answer choices is a multiple of 4 select all that apply

Finger [1]

Answer:

12, 16, 20

Step-by-step explanation:

For this question the answer will be 12, 16 and 20.

4 times 3 is 12

4 times 4 is 16

4 times 5 is 20

6 0

3 years ago

Read 2 more answers

An item is regularly priced at $27. It is on sale for 35% off the regular price. What would be the sale price?

Veseljchak [2.6K]

Answer:

$17.55

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers

An engineer wishes to determine the width of a particular electronic component. If she knows that the standard deviation is 1.6

nexus9112 [7]

Answer:

n=1705

Step-by-step explanation:

The margin of error is the range of values below and above the sample statistic in a confidence interval.

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".

Assuming the X follows a normal distribution

$X \sim N(\mu, \sigma=1.6)$

And the distribution for $\bar X$ is:

$\bar X \sim N(\mu, \frac{1.6}{\sqrt{n}})$

We know that the margin of error for a confidence interval is given by:

$Me=z_{\alpha/2}\frac{\sigma}{\sqrt{n}}$ (1)

The next step would be find the value of $\z_{\alpha/2}$ , $\alpha=1-0.99=0.01$ and $\alpha/2=0.005$

Using the normal standard table, excel or a calculator we see that:

$z_{\alpha/2}=\pm 2.58$

If we solve for n from formula (1) we got:

$\sqrt{n}=\frac{z_{\alpha/2} \sigma}{Me}$

$n=(\frac{z_{\alpha/2} \sigma}{Me})^2$

And we have everything to replace into the formula:

$n=(\frac{2.58(1.6)}{0.1})^2 =1704.03$

And if we round up the answer we see that the value of n to ensure the margin of error required $\pm=0.1$ mm is n=1705.

6 0

2 years ago