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hjlf
3 years ago
14

Find the domain of the function. f(x) = x² - 9x - 15 What is the domain off?

Mathematics
1 answer:
goldfiish [28.3K]3 years ago
4 0
The domain of the function is all real numbers because it is a quadratic equation
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I need help on these questions
Advocard [28]
For #4, we know V = lwh
We have the values
5184 = 2(18)h
Solve for h
5184 = 36h
144 = h.

for # 3:
we know A = pi r^2
We have 
A = 3.14 * 6^2
A = 3.14 * 36
A = 113.04

for #2:
We know C = 2pi *r
C = 2(3.14)(14)
C = 28(3.14)
C = 87.92

for #1:
C = 2pi * r
C = 2(3.14)(26.3/2)
C = 2(3.14)(13.15)
C = 26.3(3.14)
C = 82.582
4 0
3 years ago
Triangle ABC be similar to triangle DCE.
Studentka2010 [4]
Pls. see attachment.

3 0
3 years ago
X + x + x = 54<br> What’s the answer for this
Oliga [24]

Answer:

x = 18

Step-by-step explanation:

Step 1: Simplify both sides of the equation.

x+x+x=54

(x+x+x)=54(Combine Like Terms)

3x=54

3x=54

Step 2: Divide both sides by 3.

3x  3 = 54

3 x=18

Answer:

x=18

8 0
3 years ago
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Select two ratios that are equivalent to 2:12 A.6:40 B.12:2 C.3:24 D.1:6 E.8:48
Sever21 [200]

Answer:

E

Step-by-step explanation:

2:12 is equivalent to 8:48

7 0
3 years ago
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OverLord2011 [107]

Answer:

6.9 6.9 6.9 6.9 6.9 6.9 6.9 6.9 6.9

6 0
3 years ago
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