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3 years ago

2 to the negative 3rd power represented another way

Mathematics

1 answer:

Citrus2011 [14]3 years ago

5 0

Answer:

1/8

Step-by-step explanation:

2^(-3) = (1/2)^3 = 1/2^3 = 1/8

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How much is N^2-10N+9

nataly862011 [7]

Answer:

(n−9)(n−1)

Step-by-step explanation:

Consider the form x2+bx+c

. Find a pair of integers whose product is c and whose sum is b. In this case,product is 9

and whose sum is −10.−9,−

the factored form using these integers.(n−9)−1 )

6 0

3 years ago

Tia cut a 4 meters 8 centimeters wire into 10 equal pieces.Marta cut a 540 centimeters wire into 9 equal pieces. How much longer

Anon25 [30]

19,2 centimeters longer

4 0

3 years ago

Eighth grade

spin [16.1K]

The 8 and the 8m which isn’t 6m

5 0

3 years ago

The san paulo community swimming pool can be filled in 12 hr if water enters through a pipe alone or in 30 hr if water enters th

Nuetrik [128]

Alright, lets gets started.

If water enters through a pipe alone, swimming pool can be filled in 12 hr.

Or say, in 12 hrs, swimming pool can be filled with help of pipe.

It means in 1 hr, the part of swimming pool filled = $\frac{1}{12}$ (For pipe only)

Similarly, with hose only, , in 1 hr, the part of swimming pool filled = $\frac{1}{30}$

So, water is coming from both, pipe and hose , then in 1 hr, the part of pool filled will be = $\frac{1}{12} + \frac{1}{30}$

Suppose in x hrs, with both supplies, pipe and hose, pool is filled.

Means

$\frac{1}{12} + \frac{1}{30} = \frac{1}{x}$

making common denominator

$\frac{30}{360} + \frac{12}{360} = \frac{1}{x}$

$\frac{30 + 12}{360} = \frac{1}{x}$

$\frac{42}{360} = \frac{1}{x}$

Flipping

$\frac{360}{42} = x$

$x = \frac{60}{7}$

Means 8.57 hrs : Answer

Hope it will help :)

7 0

3 years ago

In an experiment of 50 cars passing was recorded 17 silver cars were recorded what Is the relative frequency of a silver car pas

Vilka [71]

The relative frequency of the silver cars will be given by:
(number of silver cars recorded)/(number of cars recorded)*100
=17/50*100
=34%
The answer is 34%

7 0

3 years ago