Let angle be x
4 times complement = 4(90 - x)
2/3 times its supplement = 2/3(180 - x)

4(90 - x) = 2/3 (180 - x)
360 - 4x = 120 - 2/3 x
240 = 3 1/3 x
x = 240 / 10/3 = 240 * 3/10 = 72 degrees Answer

4 0

2 years ago

What is 15mn-20n / 5n

AlexFokin [52]

The correct answer is 3m-4

8 0

2 years ago

The proportion of items in a population that possess a specific attribute is known to be 0.40. If a simple random sample of size

WARRIOR [948]

Answer:

The sampling error = 0.06

Step-by-step explanation:

From the given information:

Let represent $\beta$ to be the population proportion = 0.4

The sample proportion be P = 0.46 &

The sample size be n = 100

The population standard duration can be expressed by the relation:

Population standard duration $\sigma = \sqrt{\dfrac{\beta(1- \beta)}{n}}$

$\sigma = \sqrt{\dfrac{0.4(1-0.4)}{100}}$

$\sigma = \sqrt{\dfrac{0.4(0.6)}{100}}$

$\sigma = 0.049$

The sample proportion = 0.46

Then the sampling error = P - $\beta$

The sampling error = 0.46 - 0.4

The sampling error = 0.06

5 0

2 years ago