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Elodia [21]
2 years ago
9

F(x)=4x squared −7x+7, Find f(2)

Mathematics
1 answer:
Lana71 [14]2 years ago
7 0

Answer: 9

Step-by-step explanation:

4x²-7x+7   f(2)=4*(2)^2-7(2)+7=16-14+7=9

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she walks up 9 flights of stairs. If there are 13 steps in 1 flight of stairs, how many steps does Kay climb in 5 days at work?
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13 * 9
And then multiply that answer by 5.
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3 years ago
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If sin theta = -0.7660, which of the following represents an approximate value of tan theta, for 180 degrees < theta < 270
Elis [28]
We have that
sin ∅=-0.7660

the sin ∅ is negative
so 
∅ belong to the III or IV quadrant
but
180°< ∅ < 270°
hence
∅ belong to the III quadrant
sin ∅=-0.7660
sin² ∅+cos² ∅=1
cos² ∅=1-sin² ∅------> cos² ∅=1-(0.7660)²-----> 0.4132
cos ∅=√0.4132-----> cos ∅=0.6428
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cos ∅=-0.6428

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the answer is
tan ∅ is 1.1917
4 0
3 years ago
Helpppppp show your work
Tpy6a [65]

Answer:

-5/3

Step-by-step explanation:

Do PEMDAS

8 - 11 = -3

-3 ^ 3 = -27

-(-27) = 27

I-14I = 14

3 x 14 = 42

27 - 42 = -15

2^4 = 16

16 - 7 = 9

-15/9 = -5/3

6 0
1 year ago
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Each hour, the number of bacteria in Dr. Nall’s petri dish tripled. What percent is the population compared to the population th
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THE ANSWER IS THE D!!!!!!!!!!!!
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Simplify using the order of operations.<br> 3/8-1/9
svetoff [14.1K]

Answer:

19 /72 ≈0.264

Step-by-step explanation:

3 0
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