All categories

3 years ago

18x^2+24x=0 Please solve by factoring.

Mathematics

1 answer:

Harman [31]3 years ago

4 0

Answer:

6x ( 3x +4)

X =0 and x = 4/3 or x = 1 1/3

Step-by-step explanation:

Take the common factors out,

Here x is common to both equation and also 6 is common to both equation

So,

6x ( 3x + 4) = 0

So it can be solved by

X = 0 and x = 4/3

You might be interested in

In the expression “six to the power of four is 1,296," which number is the base?

cestrela7 [59]

Six is the base because 6^4 is 1296.

7 0

2 years ago

Square root of y^2 times y^2

Galina-37 [17]

Square root of y^2 = y
so
Square root of y^2 times y^2 = y * y^2 = y^3

answer
y^3

8 0

3 years ago

Simply the equation 3x+1=2x+5

kipiarov [429]

Answer:4

Step-by-step explanation: 3x+1−2x=2x+5−2x

x + 1 = 5

x+1−1=5−1

x=4

3 0

2 years ago

Read 2 more answers

Simplify the exoression (x^3-5x^2+7x-12)÷(x-4)

kiruha [24]

Answer:

x^2-x+3

Step-by-step explanation:

You factor it out which would then make it

(x-4)(x^2-x+3)/x-4

Then you cancel out the common factor, x-4

which leaves you with x^2-x+3

4 0

3 years ago

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