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velikii [3]
3 years ago
13

RATIOS MY WORST ENEMY HELP!!! IM SO LOST

Mathematics
1 answer:
Pavel [41]3 years ago
4 0
(4,6) (6,9) (8,12)
Now for rick it is (6,8) (9,12) (12,16)
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Sari is factoring the polynomial 2x2 + 5x + 3. What is the missing number in her factorization? 2x2 + 5x + 3 = (2x +[ ? ])(x + 1
Vikentia [17]

Answer: 3

Explanation:

The polynomial is:

2x^2+5x+3 (1)

We want to factorize it as follows:

(2x+C)(x+1)

where C is the unknown number we want to find.

Solving explicitely the last equation,

(2x+C)(x+1)=2x^2 +2x +Cx +C=2x^2 +(2+C)x+C (2)

We want eq.(2) to be identical to eq.(1). From the last term, we see immediately that it must be C=3, and 2+C=5. So the missing number is 3, and the factorization is

(2x+3)(x+1)

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4 years ago
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adoni [48]
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The graph of a quadratic function has x intercepts at -3 and 5/2, and y intercept at 10. Give the function.
sesenic [268]

Answer:

  f(x) = -4/3x² -2/3x +10

Step-by-step explanation:

The quadratic regression function of a graphing calculator or spreadsheet can determine the equation for you.

___

Or, you can determine it yourself.

The equation can be written in the form ...

   f(x) = a(x +3)(x -5/2) . . . . . . . using the given x-intercepts

for some value of "a"

For x = 0, this must match the y-intercept.

  f(0) = a(0 +3)(0 -5/2) = 10

  -15/2·a = 10

  a = -20/15 = -4/3

So, the function can be written as ...

  f(x) = (-4/3)(x +3)(x -5/2)

or

  f(x) = -4/3x² -2/3x +10

7 0
3 years ago
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Ten boys share 7 granola bars. what fraction does each boy get​
romanna [79]

Answer:

the Fraction is 1 \frac{43}{100}

Step-by-step explanation:

  • We divide 10 by 7 and we get 1.43 (simplest form)
  • then we transform it to a fraction and get  1 \frac{43}{100} ( also \frac{143}{100})
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Izzy is Iago's little sister. She is counting her coins. Izzy finds that she has three more quarters ($0.25) than she has dimes
Hunter-Best [27]
26 quarters
6 dimes
1 penny
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