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zavuch27 [327]
3 years ago
12

F(x)=20-x^2+8x what are the minimum and maximum points and the axis of symmetry?

Mathematics
1 answer:
-Dominant- [34]3 years ago
5 0
Vertex aka max or min point is found by -b/2a in form
f(x)=ax^2+bx+c
f(x)=-1x^2+8x+20
vertex x value is -8/(2)(-1)=-8/-2=4
input back to find y value
f(4)=-(4^2)+8*4+20
f(4)=-16+32+20
f(4)=36
max (since the graph opens down) is (4,36)
axis of symmetry is the x coordinate


max is (4,36)
axis of symmetrry is x=4
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For construction of a unique quadrilateral at least _____measurements are required.
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Answer:

Five

Step-by-step explanation:

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5 0
3 years ago
You can jog around the block twice and the park once in 10 min. You can jog around the block twice and the park 3 times in 22 mi
stich3 [128]
B = block     p = park

2b + p = 10 min                2 runs around the block takes 10 minutes
2b + 3p = 22 min        2 runs around the block plus 3 runs around the park                                                       takes 22 minutes

To solve, I will use substitution. First, I will divide the first equation by 2 to get b by itself and subtract p from both sides to get b by itself. Then, substitute 5 - 1/2p in for b in the second equation because they have equal values. Then, subtract 10 from both sides to eliminate it. Divide by 2 to both sides to get 'p' by itself.

2b + p = 10 min ---------→b + 1/2p = 5 ----------→ b = 5 - 1/2p

2(5 - 1/2p) + 3p = 22 ---------→ 10 -p + 3p = 22 --------→ 10 + 2p = 22

10 + 3p = 22 ----------→ 2p = 12

2p = 12 -------------→ p = 6

It takes 6 minutes to jog around the park

Hope this helps!
6 0
3 years ago
The base of a triangular door wedge has an area of 55 square centimeters. The height of the wedge is 5 centimeters. Find the vol
V125BC [204]

Answer:

the answer ios yes

Step-by-step explanation:

55-243 equals the sum of 11

8 0
2 years ago
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The answer to this is 3.

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4 years ago
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Can somebody help me?
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