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4 years ago

3rd time posting can anyone help me with 10 and 11

Mathematics

1 answer:

Angelina_Jolie [31]4 years ago

4 0

Step-by-step explanation:

10=Ptolemy's theorem

11=angle bisector theorem

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Use the properties of equality to simplify the equation. Tell whether the equation has zero, one, or infinitely many solutions.

Ganezh [65]

Answer
One solution

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3 years ago

Which two shapes can be classified as parallelograms?

Deffense [45]

Actually there are three shapes that can be classified as a parallelogram.

Square, Rectangle, and Rhombus

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3 years ago

Read 2 more answers

The density of a certain material is such that it weighs 10 ounces per gallon of volume. Express this density in pounds per pint

poizon [28]

Answer:

0.08 pounds per pint.

Step-by-step explanation:

Given: The density of a certain material is such that it weighs 10 ounces per gallon.

We are to express this density in pounds per pint.

1 gallon ⇒ 10 ounces

1 pound = 16 ounces

How many pounds? = 10 ounces.

Cross-multiplying gives;

$\frac{10 * 1}{16} = 0.625$ pounds

1 gallon = 8 pints

The density in pounds per pint is;

0.625 pounds ÷ 8 pints = 0.078125 pounds per pint = 0.08 pounds per pint (answer rounded up to the nearest hundredth).

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3 years ago

Please help me with only one question. 20 points

Ostrovityanka [42]

Answer:

141.3 cubic inches

Step-by-step explanation:

The volume of a cylinder is found using the volume formula $V=\pi r^2h$ .

The radius is half the diameter 6 which is 3.

Substitute h=5 and r = 3.

$V = \pi r^2h\\V = \pi (3^2)(5)\\V=\pi *9*5\\V = 45\pi \\V= 141.3$

3 0

3 years ago

Jason wants to know the percentage of M & M's that are green. He chooses a sample of 30 M & M's from a bag, and 3 of the

KATRIN_1 [288]

Answer:

The margin of error of his experiment is of 0.1074.

Step-by-step explanation:

In a sample with a number n of people surveyed with a probability of a success of $\pi$ , and a confidence level of $1-\alpha$ , we have the following confidence interval of proportions.

$\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}$

In which

z is the z-score that has a p-value of $1 - \frac{\alpha}{2}$ .

The margin of error is of:

$M = z\sqrt{\frac{\pi(1-\pi)}{n}}$

30 M & M's from a bag, and 3 of them are green.

This means that $n = 30, \pi = \frac{3}{30} = 0.1$

Standard 95% confidence level

So $\alpha = 0.05$ , z is the value of Z that has a p-value of $1 - \frac{0.05}{2} = 0.975$ , so $Z = 1.96$ .

Margin of error:

$M = z\sqrt{\frac{\pi(1-\pi)}{n}}$

$M = 1.96\sqrt{\frac{0.1*0.9}{30}}$

$M = 0.1074$

The margin of error of his experiment is of 0.1074.

5 0

3 years ago