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Nata [24]
4 years ago
10

A parabola has x-int of (-8,0) and (4,0) and a minimum value of -9 in intercept form

Mathematics
1 answer:
babymother [125]4 years ago
6 0

Answer:

The function is  1/4x^2  + x - 8

Step-by-step explanation:

In Factor form the function  is

a(x + 8)(x - 4)    where a is a constant to be found.

= a( x^2 + 4x - 32)  Note the coefficient of x is positive because the function has a minimum value.

The line of symmetry is x = (-8+4)/2 = -2.

So the minimum value  will be the  value of f(x) when x = -2, so we have the equation

a(-2+8)(-2-4) = -9

-36a = -9

a = 1/4.



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9. Jerry's bedroom is square. He has a square desk that has an area of 1000 cm2. The area
FinnZ [79.3K]

Answer: 126.49 cm [A VERY small bedroom]

Step-by-step explanation:

The area of the square bedroom is 16 times larger than Jerry's 1000 cm^2 desk. That makes his bedroom 16000 cm^2, It is square, so each side, x, is the same: x^2 = 16000 cm^2; x = 126.49 cm.

For reference, 126.49cm is 4.14 feet.

7 0
2 years ago
When ringing up a customer, a cashier needs 6 seconds to process payment as well as 1 second to scan each item being purchased.
Leviafan [203]

43 items are being purchased.


Work:

49 - 6 = 43


43 items left!


Hope this helps!

4 0
3 years ago
Read 2 more answers
Which is a solution to the equation y=2x-5?
erma4kov [3.2K]

Answer:

C. (1, -3)

Step-by-step explanation:

Plug in the x to get the y in the equation. The point must fit the formula.

Plug in C. (1, -3), in which x = 1, y = -3:

(-3) = 2(1) - 5

Simplify:

(-3) = 2(1) - 5

-3 = 2 - 5

-3 = -3 (True).

C is your answer.

~

7 0
3 years ago
Read 2 more answers
Based on the information in the table what is the probability of being a girl and choosing lemonade?
tresset_1 [31]

Using it's concept, it is found that the probability of being a girl and choosing lemonade is given by:

b. 0.2.

<h3>What is a probability?</h3>

A probability is given by the <u>number of desired outcomes divided by the number of total outcomes</u>.

In this problem, out of 130 people, 26 are girls who choose lemonade, hence the probability is given by:

p = 26/130 = 0.2, which means that option b is correct.

More can be learned about probabilities at brainly.com/question/14398287

#SPJ1

5 0
2 years ago
What is 395,340 square feet of area minus an area of 110 x 30 feet?
azamat
The final area will be 392,040 square feet.

The area that is to be subtracted is 110 by 30. If we multiply those, we get 3300 square meet. Now, just subtract that from 395340.. 

395340 - 3300 = 392040
4 0
3 years ago
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