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Iteru [2.4K]
2 years ago
12

Use the function f(x) to answer the questions:

Mathematics
1 answer:
True [87]2 years ago
7 0

Answer:

x=(-2,0) and x=(5/2,0)

Step-by-step explanation:

To find x-intercepts you set f(x), or y, to 0 and then solve.

0=2x^2-x-10\\Factor!\\0=(x+2)(2x-5)\\x+2=0\\x=2\\2x-5=0\\2x=5\\x=\frac{5}{2}

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Gabe Amodeo, a nuclear physicist, needs 60 liters of a 60% acid solution. He currently has a 40% solution and a 70% solution. Ho
timofeeve [1]

Answer:

20 liters of the 40% solution

60-20=40 liters of the 70% solution

Step-by-step explanation:

40%x+70%(60-x)=60%(60)

0.4x+0.7(60-x)=0.6(60)

0.4x+42-0.7x=36

-0.3x+42=36

-0.3x=-42+36

-0.3x=-6

0.3x=6

3x=60

x=60/3

x=20 liters of the 40% solution

60-20=40 liters of the 70% solution

check: 0.4*20=8

0.7*40=28

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3 years ago
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Point Q is the image of Q(-4,7) under a translation by 4 units to the right and 2 units down.
Vika [28.1K]

Answer:

(0,5)

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6 0
3 years ago
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Answer:

slope or m = -1

Step-by-step explanation:

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-------- =   -------------- = --------- =  ----- = -1

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Step-by-step explanation:

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2 years ago
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