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2 years ago

Please help me outtttttttttt

Mathematics

1 answer:

Evgen [1.6K]2 years ago

3 0

Answer:

is correct

Step-by-step explanation:

1/12

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Hello need help with this one to and thanks and have a great day or weekend and be safe

Mandarinka [93]

Answer:

a) It's a quadratic

b) f(x) = A(x-3)(x-7)

c) she is right

Step-by-step explanation:

(0-12)/(3-1) = -6

(-4-0)/(5-3) = -2

Since the slope is not constant, it can't be a linear.

Therefore a quadratic

Since the zeroes are 3 and 7,

Factors are (x - 3) and (x - 7)

f(x) = A(x - 3)(x - 7)

Use any one point besides the x-intercepts to find A

12 = A(1-3)(1-7)

12 = 12A

A = 1

f(x) = (x - 7)(x - 3)

f(x) = x² - 7x - 3x + 21

f(x) = x² - 10x + 21

She is right

7 0

3 years ago

Read 2 more answers

Round 27,141 to the nearest ten

Wittaler [7]

27, 140 is the correct answer

4 0

2 years ago

Please Help Me Out Show You Work :) I will appreciate much

liberstina [14]

Step-by-step explanation:

$k = \frac{6}{4} \\ k = \frac{3}{2}$

$\frac{ab}{mn} = \frac{bc}{no} = \frac{cd}{op} = \frac{da}{pm}$

$y = 8 ( \frac{3}{2} ) \\ y = 12$

$z = 6 ( \frac{3}{2} ) \\ z = 9$

$5k = 8 \\ k = \frac{8}{5} \\ x( \frac{8}{5}) = 32 \\ x = 20ft$

5 0

2 years ago

100 Points! What are the classifications of each system?

alexdok [17]

Answer:

Part 1) Is a inconsistent system

Part 2) Is a consistent independent system

Part 3) Is a consistent dependent system

see the attached figure

Step-by-step explanation:

we know that

If a system has at least one solution, it is said to be consistent .

If a consistent system has exactly one solution, it is independent .

If a consistent system has an infinite number of solutions, it is dependent

If a system not have solution, it is said to be inconsistent

Part 1) we have

$x+5y=-2\\x+5y=4$

This system of linear equations has two parallel lines (their slopes are equal) with different y-intercept

The lines don't intersect

The system has no solution

therefore

Is a inconsistent system

Part 2) we have

$y=3x+4\\-2x+y=4$

we know that

If two lines have different slopes, then the lines intersect at one point and the system of equations has one solution

In this problem, the lines have different slopes (m=3 and m=2)

The lines intersect at one point

The system has one solution

therefore

Is a consistent independent system

Part 3) we have

$3x+y=4$ ----> equation A

$-6x-2y=-8$ ----> equation B

Multiply equation A by -2 both sides

$-2(3x+y)=-2(4)$

$-6x-2y=-8$ ----> equation C

Compare equation B and equation C

Are identical lines

The system has infinity solutions

therefore

Is a consistent dependent system

4 0

3 years ago

Please help me I don't get it 7 1/5−(−3/5)

Fudgin [204]

Answer:

39/5

Step-by-step explanation:

8 0

2 years ago