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lisabon 2012 [21]
3 years ago
14

Find the vertex I’d this parabola y=-2x^2-4x+4

Mathematics
1 answer:
mamaluj [8]3 years ago
5 0

Answer:

  (-1, 6)

Step-by-step explanation:

A graphing calculator shows the vertex to be (x, y) = (-1, 6).

__

You can also find it by putting the equation into vertex form.

  y = -2(x^2 +2x) +4

  y = -2(x^2 +2x +1) +4 +2(1) . . . . . add 1 inside parens; the opposite outside

  y = -2(x +1)^2 +6

Compare to ...

  y = a(x -h)^2 +k

and you see a=-2, h=-1, k=6

The vertex is (h, k) = (-1, 6).

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the data represents the heights of fourteen basketball players, in inches. 69, 70, 72, 72, 74, 74, 74, 75, 76, 76, 76, 77, 77, 8
mamaluj [8]
If you would like to know the interquartile range of the new set and the interquartile range of the original set, you can do this using the following steps:

<span>The interquartile range is the difference between the third and the first quartiles.

The original set: </span>69, 70, 72, 72, 74, 74, 74, 75, 76, 76, 76, 77, 77, 82
Lower quartile: 72
Upper quartile: 76.25
Interquartile range: upper quartile - lower quartile = 76.25 - 72 = <span>4.25
</span>
The new set: <span>70, 72, 72, 74, 74, 74, 75, 76, 76, 76, 77, 77
</span>Lower quartile: 72.5
Upper quartile: 76
Interquartile range: upper quartile - lower quartile = 76 - 72.5 = 3.5

The correct result would be: T<span>he interquartile range of the new set would be 3.5. The interquartile range of the original set would be more than the new set.</span>
4 0
3 years ago
Selena has 31 days to complete her quilt for the county fair. The blue squares in the quilt can be sewn at a rate
Setler79 [48]

Answer:

The answer is a

Step-by-step explanation:

Becuase its right

6 0
3 years ago
Read 2 more answers
Does anyone know the answer? 19 points if u answer + brainliest answer! :P
kakasveta [241]

Answer:

first start by finding the equation and then put it into photomath and then boom theres your answer hun

Step-by-step explanation:

6 0
3 years ago
10 x 6 1/2 x 2 1/4 can someone pls help this home work is due in an hour✋
Leto [7]

Answer:

<u>585/4</u> or <u>146.25</u>

Step-by-step explanation:

10 x 6 1/2 x 2 1/4

10 x 13/2 x 9/4

5 x 13 x 9/4

65 x 9/4

<u>585/4 = 146.25</u>

4 0
2 years ago
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When placed in the box below, what expression will complete an example of the commutative property of addition 7(2+9)= ?
ANEK [815]

The expression for 7(2+9) IS A(B+C) which is distributive property of addition over multiplication.

Only two arithmetic procedures are subject to the commutative property: Multiplication and Addition

 A + B = B + A Which is Commutative property of addition

A.B = B.A, which is a commutative property of multiplication.

Distributive property is A(B+C) =AB+AC

The operation on numbers that are available in brackets can be distributed for each number outside the bracket, according to the distributive property. It is one of the mathematical properties that is used the most. Commutative and associative qualities are the other two important features.

from the given data 7(2+9) =7*2+7*9

                                                =14+63

                                                =77

Now, we can clear that 7(2+9) =7(9+2)

Hence, the expression for commutative property of addition is A(B+C) = AB+AC.

To learn more about commutative property, visit

brainly.com/question/28387735

#SPJ1

6 0
1 year ago
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