3 years ago

Please help ill give brainliest

1 answer:

Paul [167]3 years ago

3 0

1.c
2.d
3.b
4.a
Im sure about 1 and 4 but a little hesitant on 2 and 3 but good luck pretty sure it’s right

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AfilCa [17]

Sixty two is your answer you’re adding all the sides

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2 years ago

Vadim26 [7]

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Step-by-step explanation:

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slavikrds [6]

1 yard = 3 feet

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3 years ago

8_murik_8 [283]

$y=2x^2+8x-9\\D=b^2-4ac\\D=64-4(2)(-9)\\D=64+72 > 0$

There are 2 roots so the only way to complete the square is,

$y=2x^2+8x-9\\y=2[(x^2+4x)]-9\\y=2[(x^2+4x+4)-4]-9\\y=2[(x+2)^2-4]-9\\y=2(x+2)^2-8-9\\y=2(x+2)^2-17$

Just factor 2 out of 2x^2+8x (just ignore the -9) then find the number that will make the terms be able to complete the square.

then complete the square and multiply 2 inside the brackets.

subtraction as you already get the vertex form and know how to complete the square.

Vertex Form: $y=2(x+2)^2-17$

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3 years ago

Lena [83]

Answer:

the median of this data is 12

6 0

2 years ago

Please help ill give brainliest​