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shutvik [7]
3 years ago
8

Write an equation that represents"Four less than the difference of half a number and 3 is 20 ."Use X for the variable.​

Mathematics
1 answer:
Alex73 [517]3 years ago
8 0

Answer:

{(1/2)x-3}-4=20

That is your answer.

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The vertex of the parabola below is at the point (2, 4), and the point (3, 6) is on the parabola. what is the equation of the pa
Paraphin [41]

Given:

Vertex ===> (h, k) (2, 4)

The parabola passes through the point: (x, y) ==> (3, 6)

Let's find the equation of a parabola.

To find the equation, use the general equation of a parabola with vertex (h, k):

y=a(x-h)^2+k_{}

Where:

(h, k) ==> (2, 4)

(x, y) ==> (3, 6)

Substitute values into the general equation:

\begin{gathered} 6=a(3-2)^2+4 \\  \\ 6=a(1)^2+4 \\  \\ 6=a+4 \end{gathered}

Subtract 4 from both sides:

\begin{gathered} 6-4=a+4-4 \\  \\ 2=a \\  \\ a=2 \end{gathered}

Substitute 2 for a, and input the values of the vertex (h, k) in the general vertex equation:

y=2(x-2)^2+4

Therefore, the equation of the parabola is:

y=2(x-2)^2+4

ANSWER:

y=2(x-2)^2+4

3 0
1 year ago
The recycling club has a goal to recycle 2,000 pounds of newspaper this year. They have already recycled 1,585 pounds. How many
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Hi lola66795 i know the answer the answer is  415 pounds what you have to do is subtract 1585 from 2000 and you will get 415
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Simplifly the following question that i have for u 3/8+1/2=
kirill115 [55]

Answer:

4/8

Step-by-step explanation:

4/8

6 0
2 years ago
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The rules of a contest say there is 8% chance of winning a prize. Seven hundred people enter the contest. Predict how many peopl
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4 0
3 years ago
Lydia has money in two savings accounts. One rate is 7% and the other is 13%. If she has $300 more in the 13% account and the to
11111nata11111 [884]

Answer:

  • 7%: $1065
  • 13%: $1365

Step-by-step explanation:

If x represents the amount invested at 7%, then the amount invested at 13% is x+300. Lydia's total interest is ...

  0.07x +0.13(x +300) = 252

  0.20x = 213 . . . . . subtract 39

  x = 213/0.20 = 1065

Lydia has $1065 invested at 7% and $1365 invested at 13%.

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