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3 years ago

Maria cut a 9 foot board into two pieces. The long piece is twice as long as the short one. How long is each piece?

Mathematics

1 answer:

erica [24]3 years ago

5 0

Answer:

The short piece is 3 feet long.

The long piece is 6 feet long.

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Find the length of the side labeled . Round intermediate values

xxTIMURxx [149]

Step-by-step explanation:

ATTACHED IS THE SOLUTION!!
PLEASE DON'T HESITATE TO ASK WHERE YOU DON'T UNDERSTAND.

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2 years ago

The panda at the zoo became very ill and lost 4 pounds each week for 5 weeks and then in the 6th week started to gain 3 pounds .

natali 33 [55]

Answer:

x-(4*5)+3=y

X=the pandas weight before

Y= the pandas current weight

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

Solve for q<br> (Please show all work thank you:))

Masja [62]

Answer:

q = ± $\frac{5}{4\sqrt{p} }$

Step-by-step explanation:

We are to solve for q in:

16pq² = 25

q² = $\frac{25}{16p}$

$\sqrt{q^2}$ = ± $\sqrt{\frac{25}{16p} }$ = ± $\frac{5}{4\sqrt{p} }$

5 0

3 years ago

A simple random sample of items resulted in a sample mean of . The population standard deviation is . a. Compute the confidence

damaskus [11]

Answer:

Following are the solution to this question

Step-by-step explanation:

Please find the complete question in the attached file.

In point a:

$a=0.05 \\\\| Z(0.025)|= 1.96 \text{(check in normal table)} \\\\ 95 \% \ CI \\\\\bar x \pm \ Z \times \frac{s}{\sqrt{n}}\\\\\to 80 \pm 1.96 \times \frac{15}{\sqrt{60}} \\\\\to (76.20448, 83.79552)$

In point b:

$95 \% \ CI \ is \\\\ \bar x \pm Z \times \frac{s}{\sqrt{n}}\\\\\to 80 \pm 1.96 \times \frac {15}{\sqrt{120}}\\\\\to (77.31616, 82.68384)$

In point c:

A large sample is a smaller error margin.

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3 years ago

Three baby penguins and their father were sitting on an iceberg 0.50.50, point, 5 meters above the surface of the water. The fat

nordsb [41]

The question is really quite easy. You just have to find the distance between the sea level and the point down the water. Make an illustration about the problem to visualize it better. The picture is shown in the attached picture. The distance we want to get is denoted as x. The solution is as follows:

x = 4.7 - 0.5 = 4.2 m

Hope this helps!

4 0

3 years ago