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3 years ago

30 POINTS FOR WHO EVER GIVE ME THE RIGHT ANSWER

Mathematics

2 answers:

Alina [70]3 years ago

4 0

Answer:

False.

Step-by-step explanation:

$\dfrac{1}{x^{-3}} = x^3$

$x^3$ is a simplified expression. The given expression is not simplified.

tigry1 [53]3 years ago

3 0

False if there is a negative exponent move it to the other side for the fraction

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10. A bag contains 4 red balls, 6 green balls and some white balls. If the probability of not drawing a white ball in one draw b

klasskru [66]

Answer:

No of white balls = 5

Step-by-step explanation:

Given that,

Total no of red balls = 4

Total no of green balls = 6

The probability of not drawing a white ball in one draw be, $P=\dfrac{2}{3}$

We need to find the number of white balls. Let there are x balls.

The probability of drawing a white ball = 1 - the probability of not drawing a white ball

= 1 -2/3

= 1/3

Using the formula for solving probability of having a white ball.

$P=\dfrac{\text{favorable outcome}}{\text{total no of outcomes}}\\\\\dfrac{1}{3}=\dfrac{x}{4+6+x}\\\\\dfrac{1}{3}=\dfrac{x}{10+x}\\\\10+x=3x\\\\10=2x\\\\x=5$

Hence, there are 5 white balls.

3 0

3 years ago

nika2105 [10]

Answer:

idk

Step-by-step explanation:

8 0

3 years ago

If 6 times a number is added to -4, the result is 10 times the number. Find the number.

andrew11 [14]

the number is - 1

let the number be n then 6 times the number is 6n and added to -4 is

- 4 + 6n = 10n ( equal to 10 times the number )

subtract 6n from both sides

- 4 = 4n ( divide both sides by 4 )

$\frac{-4}{4}$ = n , hence n = - 1

5 0

3 years ago

Help please! Ty! Ratios

Kamila [148]

Answer:

Ratios to roses to lilies....6:9

Reduced.....2:3

Step-by-step explanation:

Pretty simple doesn't need explaining

8 0

3 years ago

What is 100 times less than one million

Serggg [28]

When converted to a household measurement, 9 kilograms is approximately equal to a

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