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earnstyle [38]
3 years ago
11

A certain jar consists of eight green marbles, three black and eight red marbles. if three marbles are drawn at random, find the

probability that all three marbles are the same color.
Mathematics
1 answer:
Ivanshal [37]3 years ago
6 0
7/23rds is the correct answer.
You might be interested in
Please help if u can your a life saver!
Rom4ik [11]

Answer:

189.25in^2

Step-by-step explanation:

\pir^2

a*b

3.14 * 5^2 = 78.5

78.5/2 = 39.25

10 * 15 = 150

39.25+150=189.25

7 0
2 years ago
John is putting a fence around his garden that is shaped like a half circle and a rectangle.
belka [17]

Answer:

Answer:

C.46 ft

Step-by-step explanation:

we know that

The perimeter of the garden is equal to sum three sides of the rectangle plus the circumference of a semicircle

so

we have

substitute the given values

Step-by-step explanation:

7 0
3 years ago
Use the Remainder Theorem to completely factor p(x) = x ^3 + 7x ^2 + 11x + 5.
tigry1 [53]

In order to use the remainder theorem, you need to have some idea what to divide by. The rational root theorem tells you rational roots will be from the list derived from the factors of the constant term, {±1, ±5}. When we compare coefficients of odd power terms to those of even power terms, we find their sums are equal, which means -1 is a root and (x +1) is a factor.

Dividing that from the cubic, we get a quotient of x² +6x +5 (and a remainder of zero). We recognize that 6 is the sum of the factors 1 and 5 of the constant term 5, so the factorization is

... = (x +1)(x +1)(x +5)

... = (x +1)²(x +5)

_____

The product of factors (x +a)(x +b) will be x² + (a+b)x + ab. That is, the factorization can be found by looking for factors of the constant term (ab) that add to give the coefficient of the linear term (a+b). The numbers found can be put directly into the binomial factors to make (x+a)(x+b).

When we have 1·5 = 5 and 1+5 = 6, we know the factorization of x²+6x+5 is (x+1)(x+5).

4 0
3 years ago
Read 2 more answers
HELP PLEASE BE QUICK
SVEN [57.7K]

Answer:

8

Step-by-step explanation:

<u>Area of a circle = πr^2</u>

64π / π = πr^2 / π

sqrt(64) = sqrt(r^2)

8 = r

Answer:  8

3 0
3 years ago
What is 4 over 10 plus 88 over 100
denpristay [2]

Answer:

1.28

Step-by-step explanation:

4/10 + 88/100

so this is unlike denominators so

4 times 10 and 10 times 10 equal to 40/100

so 40/100 + 88/100 equal to 128/100 so we simplify 128÷2 and 100÷2 equal to 64/50 and 64÷2 and 50÷2 equals 32/25 we do long division then it is equal to 1.28

6 0
2 years ago
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