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aksik [14]
3 years ago
8

Find x when F(x)=10 f(x)=2x-6

Mathematics
2 answers:
Dovator [93]3 years ago
7 0

just substitute 10 into the equation

10=2x-6

add 6 to both sides

16=2x

divide both sides by 2

x=8

Delicious77 [7]3 years ago
3 0

Answer:

14

Step-by-step explanation:

Plug in the 10 as x and solve

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Determine the vertex of the function f(x) = 2(x - 5)2 + 8.
Pachacha [2.7K]
Solve for x, which can be done by moving x to the other side.
2(x-5)^2+8

So, x = 5

The y value is the number at the end and we can see that it is positive 8.

y = 8

Write it out as a coordinate pair and you would get (5,8) or answer choice D
8 0
4 years ago
a person Can travel 120 miles in one direction. the return trip was accomplished at double the speed and took three hours less t
BaLLatris [955]
40 mph would be 120 miles in 3 hours (120/40)

80 mph is 120 miles in 1.5 hours(120/80)

3 - 1.5 = 1.5, not 3 hrs

Change the speed to 20 mph( 1/2 the speed) to double the hours.

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6 - 3 = 3 hours difference
6 0
4 years ago
Which of the following angles has a reference angle of pi/12
Likurg_2 [28]

Given:

\frac{\pi}{12}

Required:

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Required answer:

Option B

5 0
1 year ago
3x +y = -5<br> x - 2y = -4
Len [333]

Answer:

y=-1

x=2

Step-by-step explanation:

3x+y=5

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4 0
3 years ago
What two numbers multiply by 25 but adds up to 6
Natalka [10]
No two <em>intergers</em> can solve this problem. If you're not in Algebra II yet, the answer is probably "none."

Just look at the factor pairs of 25:
1 × 25
-1 × 25
5 × 5
-5 × -5
Clearly none of those can add up to 6.

If you want the more complex answer, I'll show you how here. If you don't understand why it doesn't work, that's okay. I just want you to see that  there's not an actual answer to the problem.

a+b = 6
a = 6-b
ab = 25
(6-b)b = 25
6b -b² = 25
-b² + 6b = 25
b² -6b = -25
Factor by splitting the middle.
Half of -6 is -3, (-3)² = 9. Add this to each side.
b² -6b + 9 = -16
Factor the perfect square trinomial.
(b-3)² = -16
Take the square root of each side.
b-3 = 4i
b = 3+4i
a+b = 6
a+3+4i = 6
a= 3-4i
<em>(The "i" stands for an imaginary number, specifically, the square root of -1.)</em>
8 0
3 years ago
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