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3 years ago

Write a sentence to describe: 20:4

Mathematics

2 answers:

arsen [322]3 years ago

8 0

Answer:

Twenty divided by four equals five.

Doss [256]3 years ago

7 0

Answer:

what is the quotient of 20 divided by 4

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What is 150/100 in decimal form and percent form

Andrews [41]

Decimal : 1.5
Percent : 150%

3 0

3 years ago

Answer. it fast please

mojhsa [17]

Answer:

$(\frac{6}{10})^3 * (\frac{5}{9})^2 = \frac{1}{15}$

Step-by-step explanation:

Given

$(\frac{6}{10})^3 * (\frac{5}{9})^2$

Required

Solve:

$(\frac{6}{10})^3 * (\frac{5}{9})^2$

Simplify 6/10

$(\frac{6}{10})^3 * (\frac{5}{9})^2 = (\frac{3}{5})^3 * (\frac{5}{9})^2$

Express 9 as 3^2

$(\frac{6}{10})^3 * (\frac{5}{9})^2 = (\frac{3}{5})^3 * (\frac{5}{3^2})^2$

Apply law of indices

$(\frac{6}{10})^3 * (\frac{5}{9})^2 = \frac{3^3}{5^3}* \frac{5^2}{(3^2)^2}$

$(\frac{6}{10})^3 * (\frac{5}{9})^2 = \frac{3^3}{5^3}* \frac{5^2}{3^4}$

Express as a sing;e fraction

$(\frac{6}{10})^3 * (\frac{5}{9})^2 = \frac{3^3*5^2}{5^3*3^4}$

Apply law of indices:

$(\frac{6}{10})^3 * (\frac{5}{9})^2 = \frac{1}{5^{3-2}*3^{4-3}}$

$(\frac{6}{10})^3 * (\frac{5}{9})^2 = \frac{1}{5^1*3^1}$

$(\frac{6}{10})^3 * (\frac{5}{9})^2 = \frac{1}{5*3}$

$(\frac{6}{10})^3 * (\frac{5}{9})^2 = \frac{1}{15}$

5 0

2 years ago

2. Stanford–Binet IQ Test scores are normally distributed with a mean score of 100 and a standard deviation of 15. a. Sketch the

gogolik [260]

Answer:

0.0010,0.2743

Step-by-step explanation:

Given that Stanford–Binet IQ Test scores are normally distributed with a mean score of 100 and a standard deviation of 15

If x represents the scores then

X is N(100,15)

a) See enclosed file

b) Z score = $\frac{x-100}{15}$

c) the probability that a randomly selected person has an IQ test score

i. Over 145.

= $P(X>145) = P(Z>3) = 0.0010$

ii. Under 91

= $P(X$

8 0

3 years ago

PLEASE HELP WITH THESE 2

Salsk061 [2.6K]

Answer:

1. ?=100 2.?=70

Step-by-step explanation:

1. for the inner arch, you just have to multiply by 2 so 50x2

2. to find the inner arch from the outer arch, you have to divide by two so 140/2

5 0

2 years ago

Suppose there are 25 students attending Friday lectures on Statistics.

AnnyKZ [126]

The answer is A because B doesn't make sense

4 0

3 years ago