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Lunna [17]
3 years ago
6

F(x) = -4x2 + 19 Find f(-7)

Mathematics
1 answer:
faust18 [17]3 years ago
7 0

Step-by-step explanation:

Solution,

f(x) = -4x2 + 19

f(x)=-8+19

f(x)=27

As it is a constant function, therefore

f(-7)=27

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I add 20 to my number and subtract 17 from the new number. the answer is 37. what is my number?
valentinak56 [21]
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3 0
3 years ago
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Paul is going to have the exterior of his home painted. Painting USA charges $75.00 to come out and evaluate the house plus $25.
Sladkaya [172]

Answer:

The most cost effective company will be Painting USA that charge $700 to paint Paul house .

As given

Paul is going to have the exterior of his home painted.

Painting USA charges $75.00 to come out and evaluate the house plus $25.00 per hour of labor.

If it takes 25 hours to paint Paul’s house.

Total amount charge by Painting USA = Painting USA charges for come out  and evaluate the house + Cost of per hour of labor × Total hours take to paint Paul house .

Total amount charge by Painting USA = 75 + 25 × 25

                                                               = 75 + 625

                                                               = $ 700

As given

Upscale Home Painting does not charge to evaluate the house. However, they charge $40.00 per hour.

Total amount charge by Upscale Home Painting = Cost of per hour of labor × Total hours take to paint Paul house

                                                                                = 40 × 25

                                                                                = $ 1000

Therefore  the most cost effective company will be Painting USA  that charge $700 to paint Paul house .

Step-by-step explanation:

4 0
3 years ago
Please help ASAP!!!!!!!!!!
Minchanka [31]

well if 200 people entered the stadium then divide that number by 27

4 0
3 years ago
I need help with the questions
riadik2000 [5.3K]

Answer:

Step-by-step explanation:

Hello

please find attached the graph

you can notice that x^2-6x+9 = (x-3)^2

(a) from the graph we can say that there is no maximum and one minimum in x = 3

and then f(3) = 0 so o is the minimum of f

(b) vertex is (3,0)

(c) x = 3 is an axis of symmetry

(d) as x^2-6x+9 = (x-3)^2 the root is 3

(e) y=9 for x = 0 so the y-intercept is 9

do not hesitate if you need further explanation

if you like my answer, tag it as the brainliest :-)

8 0
3 years ago
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Step-by-step explanation:

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Then that's your answer.

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2 years ago
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