3 years ago

Match each quadratic equation with the best way to solve it.

1 answer:

6 0

I think you forgot some of the questions?
are the questions like this- <span>1. 5x^2 + 12x - 3 = 0 - solve by quadratic formula 2. x^2 - 4x = 8 - solve by factoring 3.
if so i can help you let me know</span>

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The sum of two numbers is 2. If one number is subtracted from the other, their difference is -8. Find the numbers.

raketka [301]

Answer:

5 and -3

Step-by-step explanation:

x+y =2

X-Y=-8

BY USING SIMULTANEOUS EQUATION

SUBTRACT SUCH THAT

2Y=10

SO Y = 5

X= -3

3 0

1 year ago

The number of students who enroll in a psychology course is a Poisson random variable with mean 105. The professor in charge of

EleoNora [17]

Answer:

The answer is "0.096".

Step-by-step explanation:

In this question, the X is a number of the students who enroll in a psycholog y course, follows a Poisson distribution with mean $= \lambda= 105$

$\therefore P(X=x)=\frac{e^{-105} 105^{x}}{x!},(x=0,1,2,3.....)\\\\\to p(teach\ two \ sections) = P(X \geq 119)\\\\=1-P(X$

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2 years ago

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Vladimir [108]

Diameter: 24
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3 0

3 years ago

Read 2 more answers

Please jelppp there’s also a option that says none of the above

asambeis [7]

They are vertical angles

8 0

2 years ago

Wilma is twice as old as Jamal, and Jamal is 3 years older than Tim. The sum of all their ages is 17.

oee [108]

<span>If x = Jamal's age , 2x = Wilma's age , x - 3 = Tim's age.
The sum of the ages is 17.
Jamal's age is 5
Wilma's age is 10
Tim's age is 2

Hope this helps!</span>

4 0

2 years ago