All categories

3 years ago

A quadrilateral with two pairs of parallel sides and no right angles

Mathematics

1 answer:

kolezko [41]3 years ago

4 0

A Parallelogram. 2 obtuse angles, 2 acute angles. 2 pairs of parallel sides

You might be interested in

3) What is the greatest common factor of 5x7, 30x4, and 10x3?

Rina8888 [55]

Answer:

because it is the largest positive integer that all of the products can be divided by.

3 0

2 years ago

Read 2 more answers

F(-7) if f(x) = 8x 15

scoray [572]

All you do is plug in -7 so you get f(x)=8(-7)*15 you get -56*15 which goes to -840

3 0

2 years ago

"A cable TV company wants to estimate the percentage of cable boxes in use during an evening hour. An approximation is 20 percen

Marizza181 [45]

Answer:

The company should take a sample of 148 boxes.

Step-by-step explanation:

Hello!

The cable TV company whats to know what sample size to take to estimate the proportion/percentage of cable boxes in use during an evening hour.

They estimated a "pilot" proportion of p'=0.20

And using a 90% confidence level the CI should have a margin of error of 2% (0.02).

The CI for the population proportion is made using an approximation of the standard normal distribution, and its structure is "point estimation" ± "margin of error"

[p' ± $Z_{1-\alpha /2} * \sqrt{\frac{p'(1-p')}{n} }$ ]

Where

p' is the sample proportion/point estimator of the population proportion

$Z_{1-\alpha /2} * \sqrt{\frac{p'(1-p')}{n} }$ is the margin of error (d) of the confidence interval.

$Z_{1-\alpha /2} = Z_{1-0.05} = Z_{0.95}= 1.648$

$d= Z_{1-\alpha /2} * \sqrt{\frac{p'(1-p')}{n} }$

$d *Z_{1-\alpha /2}= \sqrt{\frac{p'(1-p')}{n} }$

$(d*Z_{1-\alpha /2})^2= \frac{p'(1-p')}{n}$

$n*(d*Z_{1-\alpha /2})^2= p'(1-p')$

$n= \frac{p'(1-p')}{(d*Z_{1-\alpha /2})^2}$

$n= \frac{0.2(1-0.2)}{(0.02*1.648)^2}$

n= 147.28 ≅ 148 boxes.

I hope it helps!

3 0

3 years ago

Which of the following is a unit of measurement used in the apothecary system?

dlinn [17]

I believe it is option D

7 0

2 years ago

What's the answer?<br> Idk it bc I'm stupid and I don't feel like doing it

aliya0001 [1]

H=-16x to the second power +136

4 0

2 years ago