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3 years ago

Y+1=3(x−4) Find the Y intercept and the X intercept

Mathematics

1 answer:

vivado [14]3 years ago

3 0

X intercept-(9,2/0)
y intercept-(0,-9)
hope this helps

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There are 30 balls numbered 1-30 in a bag. One is randomly selected 12 times. What is the probability of getting a prime number

Sliva [168]

Answer: The probability of getting a prime number exactly five times = 0.1908

Step-by-step explanation:

Prime numbers from 1 to 30 are 2,3,5,7,11, 13, 17, 19, 23, 29.

The probability of getting a prime number p= $\dfrac{10}{30}=\dfrac13$

Number of trials n = 12

Binomial probability formula:

$P(X=x) = \ ^nC_x p^x(1-p)^{n-x}$

, where x= number of successes

n= number of trials.

x = Number of successes

p= probability of getting one success.

The probability of getting a prime number exactly five times:

$P(X=5)=\ ^{12}C_5(\frac13)^5(1-\frac13)^{7}$

$=\frac{12!}{5!7!}(\frac1{243})(\frac{128}{2187})\\\\=0.1908$

Hence, the probability of getting a prime number exactly five times = 0.1908

4 0

2 years ago

Find the perimeter of missing densions if lendth is 4 rods and width is 11 yards what is the perimeter?answer_____rods

riadik2000 [5.3K]

I think it's 30 rods

3 0

3 years ago

The probability of picking a green Token from a box containing 10 red , 6 blue, and 4 green tokens

aleksandr82 [10.1K]

Answer: You have a 20% chance of picking a green token or 4/20 with converts to 20%

Step-by-step explanation:

7 0

3 years ago

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How to factor quadratic with a leading coefficient?

Harrizon [31]

One method is called the ac method:-

For example factor

3x^2 + 2x - 21

ac ( first coefficient times the last) = 3*21 = -63

now we need to find 2 factors of -63 which add up to the coefficient of x ( + 2):-

+9 and - 7 look good so we can write the original expression as:-

3x^2 + 9x - 7x - 21

Factor by grouping:-

= 3x(x +3) - 7(x + 3) ( x + 3) is common so:-

= (3x - 7)(x + 3) Answer

7 0

3 years ago

How to solve this problem

bixtya [17]

L-5l+l9l=

5+9=14

and done :P

8 0

2 years ago

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