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murzikaleks [220]
2 years ago
5

I have 3 green cubes, 4 red cubes, 2 black cubes, and 6 yellow cubes. What is the probability that I will randomly choose a blac

k cube, put it back then randomly choose a yellow cube
Mathematics
1 answer:
Strike441 [17]2 years ago
6 0

Answer:

4/75 or 0.05333

Step-by-step explanation:

3+4+2+6=15 elements

2/15= probability to choose a black

6/15 = probability to choose a yellow cube

Probability to choose a black AND (*) a yellow = 2/15*6/15=12/225=4/75 or 0.05333

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The two parallelograms in the figure are similar. What is the value of x?
puteri [66]

Answer:

The answer is D, 30.4

Step-by-step explanation:

Because the two parallelograms are similar, the relationship between the sides of them are directly proportional.

So:

\frac{9}{8} =\frac{x}{27}

Cross multiply

8x = 243

÷8 both sides

x = 30.375 ≈ 30.4

The answer is D, 30.4

5 0
3 years ago
Read 2 more answers
Write an equation of the circle with center (-2, 7) and radius 9.
Andrei [34K]
(x+2)^2 + (y-7)^2 = 9^2

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3 years ago
Please help! what equation best models this data?
kolezko [41]

Answer:

P = 309.35 + 2.31t

Step-by-step explanation:

The relation between the population of the USA and the time in years after 2010 will be linear as the increase in population is constant for every year since 2010 which is  2.31 million.

So, we can model the population P in million as a function of time(t) in years since 2010 as

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(Answer)

8 0
3 years ago
A family has an annual income of $27,000. Of this, 1/4 is spent for food, 1/5 for housing, 1/10 for clothing, 1/9 for savings, 1
pav-90 [236]
Food is $6,750
Housing is $5,400
Clothing is $2,700
Savings is $3,000
Taxes is $6,750
And other expenses is $2,400
7 0
3 years ago
Which of the following shows that polynomials are closed under subtraction when polynomial x + 5 is subtracted from 3x2 + 2x − 6
Art [367]
For this case we have the following polynomials:
 P = 3x ^ 2 + 2x - 6

Q = x + 5
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 What we must do is subtract terms of the same degree.
 We have then:
 P - Q = 3x ^ 2 + (2x - x) + (-6 - 5)

P - Q = 3x ^ 2 + x - 11
 Answer:
 
3x ^ 2 + x - 11 will be a polynomial
3 0
3 years ago
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