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2 years ago

A quadratic function has zeros at 1 and -8. Which of the following could be the function?

Mathematics

1 answer:

3241004551 [841]2 years ago

3 0

Answer:(x-1)(x+8)

Step-by-step explanation: You need to set it up as (x+y)(x+z) format. To get that you need to flip the zeroes making them the opposite. So the answer in this case would be (x-1)(x+8).

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Solve for x. 4- (2x + 4)=5 A. x = -10 B. x = 6 C. x = 3/2 D. x = -5/2

horsena [70]

Answer:

x = (-5/2)

Step-by-step explanation:

4 - (2x + 4) = 5

-4 from both sides

- (2x + 4) = 1

divide both sides by -1

2x + 4 = -1

-4 from both sides

2x = -5

divide both sides by 2

x = (-5/2)

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4 years ago

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at a farmers market two vendors sell fresh milk. one vendor sells 2 liters for $3.80, and another vendor sells 1.5 liters for $2

Artist 52 [7]

Answer:

The second dealer is better.

Step-by-step explanation:

To figure this out we need to divide the price by the amount of milk. Lets do both at the same time.

3.8/2= 2.7/1.5=

3.8/2=1.9 2.7/1.5=1.8

The second dealer is better.

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3 years ago

Does supplementary angles have a sum of 90

krek1111 [17]

No supplementary equals 180 degrees

5 0

3 years ago

The length of the arc intercepted by a central angle of 3/9 pie is 3.6 feet long. How long is the radius of the circle?

gtnhenbr [62]

Answer:

B) 3.44 feet

The Radius of the circle 'r' = 3.439 ≅3.44 feet

Step-by-step explanation

Step(i):-

Given data the length of arc = 3.6 feet long

l = 3.6 feet

Given central angle 'θ' = $\frac{3}{9} \pi$

Step(ii):-

The arc length 'l' of a circle of radius 'r' with central angle 'θ' radians is given by

Arc length l = r θ

3.6 = r ( $\frac{3}{9} \pi$ )

put π = 3.14

now simplification, we get

$r = \frac{3.6 X9}{3\pi }$

$r = \frac{3.6 X9}{3X3.14 } = \frac{32.4}{9.42} = 3.439$

Conclusion:-

The Radius of the circle 'r' = 3.439 ≅3.44 feet

8 0

3 years ago

What is the y-coordinate of the solution of the system of equations?

Vladimir [108]

The solution will be (7,-5), so the y-value is -5 $${y=3x-26 \atop y=2x-19}$

We can subtract y=2x-19 from the top, resulting in 0=x-7, or x=7.

If we then put x=7 into the top formula, we get:

y=3(7)-26

y=21-26

y=-5$

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3 years ago

Read 2 more answers

A quadratic function has zeros at 1 and -8. Which of the following could be the function?​

A quadratic function has zeros at 1 and -8. Which of the following could be the function?