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julia-pushkina [17]

1 year ago

5

Please help!!!!!!!!!!!!!!! i need this answer really fast!!!

1 answer:

yan [13]1 year ago

3 0

Answer:

What's the question you f... you amazing human being

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How do you solve x^2 plus 16x plus 63=0?

Alex

$x^2+ 16x + 63=0 \\ \\a=1, \ b=16 , \ c=63 \\ \\ \Delta =b^2-4ac =16^2 -4\cdot1\cdot 63 = 256 -252 = 4 \\ \\x_{1}=\frac{-b-\Delta }{2a}=\frac{-16-\sqrt{4}}{2 }=\frac{-16-2}{2}=-\frac{-18}{2}=-9 \\ \\x_{2}=\frac{-b+\Delta }{2a}=\frac{-16+\sqrt{4}}{2 }=\frac{-16+2}{2}=-\frac{-14}{2}=-7 \\ \\ \\Answer : \ x= -7 \ \ or \ \ x= -9$

8 0

3 years ago

26. If the area of the rectangle shown below is given by the expression 3x + 7x - 6,

Crazy boy [7]

Answer:

D=(3x-2)

Step-by-step explanation:

Area=length×width =3x²+7x-6

thus a=3 b=7 c=-6

W=(x+3)

since c is -6 it has to be the product of 3(from W)=-2

since a=3 multiply by x (from W) 3×x=3x

=3x-2

check if its correct.

3x-2×x+3

x(3x-2)+3(3x-2)

3x²-2x+9x-6

3x²+7x-6 thus its true

6 0

3 years ago

The Coopers own two vehicles, a mini-van and sedan. The following functions represent the resale value of both cars, in thousand

velikii [3]

Answer:

$h(x) = 57(0.8)^x$

Step-by-step explanation:

Given

$f(x) = 32(0.8)^x$

$g(x) = 25(0.8)^x$

Required

A function that represents the total resale value of the two vehicles

To do this, we simply add up the functions

$h(x) = f(x) + g(x)$

$h(x) = 32(0.8)^x + 25(0.8)^x$

Factorize

$h(x) = (32 + 25)(0.8)^x$

$h(x) = 57(0.8)^x$

6 0

2 years ago

Suppose Tommy walks from his home at (0, 0) to the mall at (0, 8), and then walks to a movie theater at (9, 8). After leaving th

Roman55 [17]

Tommy walked 26 blocks.

5 0

3 years ago

OK yall i need help with this.I honestly hate geometry.Seriously.I need good student with good explanation skills.Ill mark brain

jonny [76]

Answer:

Step-by-step explanation:

In parallelogram, opposite sides are parallel and equal

3x + 7 = 5x -17

3x - 5x = -17 - 7

-2x = - 24

x = -24 /-2

x = 12

3 0

3 years ago