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Bumek [7]
3 years ago
5

Can someone explain how to do these questions or show me how?

Mathematics
1 answer:
AleksAgata [21]3 years ago
3 0
Check the picture below.

bear in mind that since we have a radical in the denominator, we'd rationalize the denominator to take it off the denominator.

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Whats the property in equation 3(2x-6)=6x-18
garri49 [273]
<span>3(2x-6)=6x-18

Distributive property

hope it helps</span>
7 0
3 years ago
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A boat costs $11,850 and decreases in value by 10% per year. How much will the boat be worth after 8 years?
VMariaS [17]
A=11,850×(1−0.10)^(8)
A=5,101.04
8 0
3 years ago
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Given f (x) = -12x + 72, find x when f(x) = 24.
Neko [114]

Answer:

x = 4

Given:

f(x) = -12x + 72

f(x) = 24

Step-by-step explanation:

=  >  - 12x + 72 = 24 \\  \\  =  >  - 12x = 24 - 72 \\  \\  =  >   \cancel{- }12x =   \cancel{-} 48 \\  \\  =  > 12x = 48 \\  \\  =  > x =  \frac{48}{12}  \\  \\  =  > x = 4

4 0
2 years ago
caleb has 7 black caps 4 yellow caps and 9 blue caps in his wardrobe. Two caps are drawn wothout replacement from the wardrobe.
Hitman42 [59]

Answer:

18/95

Step-by-step explanation:

What is probability?

Probability is simply the chances of something occuring.

As a formula, I like to say that formula = # of favorable outcomes / total # of outcomes

Where favorable outcomes is what we want to happen and total # of outcomes is the total number of possibilities.

In order to find the probability of the occurrence of something in a row, we multiply the individual probabilities of each action

Understanding the question

Here we are given that caleb has 7 black caps 4 yellow caps and 9 blue caps in his wardrobe and given this we want to find the probability of Caleb randomly selecting 2 blue caps without replacing it the first being drawn.

So here # of favorable outcomes = # of blue caps = 9

and

total number of outcomes = total # of caps = 7 + 4 + 9 = 20

Finding the probability

<em>For </em><em>first </em><em>draw</em>

First let's find the probability that caleb will select a blue cap the first time.

We know that probability = # of favorable outcomes / total # of outcomes

We also know that # of favorable outcomes = 9 and total # of outcomes = 20

Plugging this in, we get that the probability of Caleb randomly selecting a blue cap on the first draw is 9/20

<em>For </em><em>second </em><em>draw</em>

Because it says that caleb will not replace the cap when drawn it's important to subtract 1 from both the # of caps and # of blue caps

This results us in having # of favorable outcomes as 8 and total # of outcomes as 19

Plugging this in we get that the probability of Caleb drawing a blue cap the second time is 8/19

Finally to find the total probability of him selecting two blue caps in a row without replacing the first cap, we multiply the individual probabilities

From doing so we acquire 9/20 * 8/19 = 18/95

4 0
1 year ago
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Explain what is 90% of 180
Yakvenalex [24]

Answer:

The answer is 162.

Step-by-step explanation:

To find the percentage of a number:

Turn the percentage into a decimal. 90% to .90

Multiply the decimal by the number you want to find the percentage of. .90 x 180

The answer is the product.

4 0
3 years ago
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