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Ganezh [65]
3 years ago
7

!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Mathematics
1 answer:
Sever21 [200]3 years ago
7 0

Answer:

C.

Step-by-step explanation:

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Nina bought 3.45 pounds of walnuts and 1.83 pounds of almonds. How many more pounds of walnuts did she buy than almonds
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Answer:

subtract them

Step-by-step explanation:

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John and 3 friends are going out for pizza for lunch. They split one pizza and 4 large drinks. The pizza cost $13.00. After usin
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A single drink would cost be $1.55. This is because:
13 + 4x - 6 = 13.20.
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3. Tamu has 17 cards. Richard gives her t cards. Tamu now has at least 38 cards. Which best describes Tamu’s cards? *
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6 0
3 years ago
What is 4/9 • t when t=1/3
Reptile [31]
\frac{4}{9}* \frac{1}{3}= \frac{4}{27}
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castortr0y [4]
Answer: second option y = 2(x + 7/2)^2 + 1/2

Explanation:

1) given:

y = (x + 3)^2 + (x + 4)^2

2) expand the binomials:

y = x^2 + 6x + 9 + x^2 + 8x + 16

3) add like terms:

y = 2x^2 + 14x + 25

4) take common factor 2 of the first two terms:

y = 2 (x^2 + 7x) + 25

5) complete squares for x^2 + 7x

x^2 + 7x = [x +(7/2)x ]^2 - 49/4

6) substitue x^2 + 7x = (x + 7/2)^2 - 49/4 in the equation for y:

y = 2 [ (x + 7/2)^2  - 49/4] + 25

7) take -49/4 out of the square brackets.

y = 2 (x + 7/2)^2 - 49/2 + 25

8) add like terms:

y = 2(x + 7/2)^2 + 1/2

And that is the vertex for of the given expression.

7 0
3 years ago
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