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2 years ago

(Question and answer choices are in screencap)

Mathematics

1 answer:

Verdich [7]2 years ago

3 0

Answer:

1. (3,-3)

2. x=3 x=-2

Step-by-step explanation:

Plug it into the equation one number at a time.

You might be interested in

Write a quadratic equation to represent a function with the vertex (-4, 1)

pishuonlain [190]

Answer:

y=a(x+4)^2 +1, for a real number a hat is different of 0.

Step-by-step explanation:

If we know only the vertex, there are many quandratic equations.

* Result: Vertex (m,n), the quadratic equation is y= a(x-m)^2 + n for a real number a that is different of 0.

Here, the vertex (-4,1), we have the equation: y=a(x+4)^2 +1, for a real number a hat is different of 0.

Hope you understand.

6 0

3 years ago

2/3(4w+9) Please help

vfiekz [6]

Change the y to w the app didnt have the letter w so i just had to choose another letter

8 0

2 years ago

Find the equation (in terms of x ) of the line through the points (-5,-1) and (3,-4)

Nataly [62]

9514 1404 393

Answer:

y = -3/8x -23/8

Step-by-step explanation:

The slope is found using the slope formula:

m = (y2 -y1)/(x2 -x1)

m = (-4 -(-1))/(3 -(-5)) = -3/8

Then the point-slope equation of the line is ...

y -k = m(x -h) . . . . line with slope m through point (h, k)

For m = -3/8 and (h, k) = (-5, -1), the line is ...

y +1 = -3/8(x +5)

In slope-intercept form, this is ...

y = -3/8x -23/8

4 0

2 years ago

Mark has a bushel of apples which weighs 48 pounds. He wants to make some apple pies. If each apple pie requires 2.5 pounds of a

mixas84 [53]

This is easy, all you need to do is divide 48/2.5 and you have your answer.

3 0

3 years ago

A physics class has 40 students. Of these, 17 students are physics majors and 16 students are female. Of the physics majors, s

Snezhnost [94]

Answer:

Probability of female P(f) = 0,575 or 57,5 %

Probability of physic majors P = 0,425 or 42,5 %

Step-by-step explanation:

a) Probability that a random selected student is female:

Let call P(f) such probability is P(f1) + P(f2)

we have to evaluate 2 branch of the tree, working as follows

1.Probability of students as physics major is P(f1)

17/40 and after that the probability of student physics majors being female is 7/17, Therefore for that side we have probability

P(f1) = ( 17/40)* (7/17) = 119/680

2.-Probability of students as female from 40 student is

16/40

Then P(f) = ( 119/680) + 16/40 P(f) = 391/680

P(f) = 0,575 or 57,5%

b) Probability of physics majosr is:

P(pm) = 17/40

P(pm) = 0,425 or 42,5 %

4 0

3 years ago