2 years ago

According to exponent rules, when we divide the expressions we exponents.

1 answer:

3 0

The quotient rule for exponents states that if we divide exponents with the same base, then we can subtract the exponents and keep the base unchanged.

You might be interested in

If 10^2y = 25, then 10^-y equals: (a) -1/5 (b) 1/625 (c) 1/50 (d) 1/25 (e) 1/5

Gemiola [76]

<h3>given:</h3>

$10 ^{2y} = 25$

${10}^{y} = .......$

<h3>solution:</h3>

$10 ^{2y} = 25$

$(10y {)}^{2} = {5}^{2}$

$10y = 5$

$\frac{1}{ {10}^{y} } = \frac{1}{5}$

${10}^{ - y} = \frac{1}{5}$

therefore, the correct answer is option E.

8 0

1 year ago

Read 2 more answers

A circle has a circumference that measures 18π inches. What is the radius, in inches, of the circle?

sveta [45]

Answer:

the radius will be 9 or b

Step-by-step explanation:

18 is the diameter so you divide by 2 to get the radius which will be 9.

7 0

2 years ago

Im having trouble with this question, ill give 20 points :)

maks197457 [2]

Answer:

Step-by-step explanation:

the correct answer is C

3 0

2 years ago

Read 2 more answers

Which equation is used with right triangles? Question 1 options: a2 + b2 = c2 2a + 2b = 2c a + b = c from K12

astraxan [27]

Answer:

a^2 + b^2 = c^2

Step-by-step explanation:

The Pythagorean theorem is

a^2 + b^2 = c^2 where a and b are the legs of the triangle and c is the hypotenuse

6 0

3 years ago

Suppose the 100 people in society X all know the same 10 facts, while the 10 people in society Z specialize, with each person kn

Ivan

Answer:

29 times

Step-by-step explanation:

Given :

Society X ;

Population = 100

Number of facts known = 10

Average fact known per person = known fact / population = 10 / 100 = 0.1

Society X:

Population = 19

Common fact known by 9 = 5

Specialized fact, known by 10 = 5 * 10 = 50

Total facts = common + specialized = 55

Average fact known per person = 55 / 19 = 2.8947368 fact per person

Number of times society Z is better :

2.8947368 / 0.1 = 28.947 times

Approximately 29 times

5 0

3 years ago