In a certain math class, it is known that 18 students LOVE math review, and 5 students dislike math review. The teacher randomly selects three students from the class. What is the probability that all three students love math review?

Answers

Answer 1

Answer: The probability that the first random choice will be a matho-file and not a -phobe is 18/23. The probability of the second one is 17/22, and for the third one it's 16/21. The probability of all 3 is 4,896/10,626 = (18x17x16)/(23x22x21). That's 46.1% (rounded).

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Which equation represents a hyperbola with a center at (0, 0), a vertex at (0, 60), and a focus at (0, −65)?

Answers

Answer:

Step-by-step explanation:

on edge

Answer:

D!!

Step-by-step explanation:

Got it right

The equation of a line is y = -3x - 2. What are the slope and the y-intercept of the line? slope = -3 and y-intercept = 2 slope = 3 and y-intercept = -2 slope = 3 and y-intercept = 2 slope = -3 and y-intercept = -2

Answers

Answer:

slope -3 and y-intercept -2

Step-by-step explanation:

The slope:

the general linear function is y=mx+n where m is the slope

so slope = -3

y intercept is when x=0

y=-3*0-2

y=-2

Paloma volunteered to dean up litter along the sidewalkin front of her home for a total of 24 hours. If it took
30 minutes to walk that section of sidewalk, and she
walked it daily and picked up all the litter she saw,
how many days would she need to work to complete
her 24 hours of volunteer time?
PLEASE SHOW WORK BECAUSE I HAVE TO WRITE IT DOWN!!!!! 15 POINTS IF U DO!!!

Answers

30 mins / day = 1 hr / 2 days

24 hrs * 2 days = 48 days

It would take Paloma 48 days to complete the 24 volunteer hours

Can someon plz help me solve this PLzzzzzzzzzzzzzzzzzzzz!!!!!!!!!!!!!!!!!!!!!!!!!!!!32-6x+7x=-15+28

Answers

=>32 - 6x + 7x = -15 + 28
=>32 - 6x + 7x + 15 -28 =0
=>32 -28 + 15 -6x + 7x =0
=>19 + x =0
=>x = -19

Hope it helps !!!

If you go to mathway . com you can put ANY problem in and it will tell you.

A quadratic equation is shown below:x2 − 14x + 41 = 0

Which of the following is the first correct step to write the above equation in the form (x − p)2 = q, where p and q are integers? (5 points)

A:Add 8 to both sides of the equation
B:Add 9 to both sides of the equation
C:Subtract 8 from both sides of the equation
D:Subtract 9 from both sides of the equation

Answers

Since the desired equation is a perfect square binomial, it is necessary to obtain a constant term (in the case of the given equation, 41) that is also a perfect square. To determine the perfect square needed, take the coefficient of the second term (14x) and divide it by two, then square it. It should yield "49". To obtain 49 as the constant term, we have to add 8 to both sides of the equation. Among the choices, the correct answer is A.

The first correct step to write the above equation in the form id to subtract 49 from both sides of the equation

Vertex form of an equation

The standard vertex form of an equation is expressed as:

a(x − p)² = q

Given the quadratic equation x^2 − 14x + 49 = 0

The first step is to subtract the constant of the expression from both sides as shown:

Subtract 49 from both sides of the equation to have:

x^2 − 14x + 49 = 0

x^2 − 14x + 49 - 49= 0 - 49

x^2 - 14x = -49

Hence the first correct step to write the above equation in the form id to subtract 49 from both sides of the equation

Learn more on vertex form here: brainly.com/question/17987697

#SPJ5

Which equation has the same solution as x²- 6x - 12 = 0

Answers

Hey There Baby and, Welcome to Brainly

Which equation has the same solution as x²- 6x - 12 = 0

x^2 - 6x = 12

x^2 -6x + 9 = 12+9

x^2 -6x + 9 =21

(x-3)^2 = 21

So the answer will be (x-3)^2=21

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