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2 years ago

Help !? i don’t know how to do this

Mathematics

2 answers:

kari74 [83]2 years ago

8 0

The slope is 5/2 and connect the two points in a triangle form

ozzi2 years ago

4 0

Answer:

y=7/2x+2 <---- slope intercept form

Step-by-step explanation:

I can't draw the slope triangle but I can give you the equation.

So use the 2 given points, (2,9) and (4,16)

find the slope by using the slope formula

y2-y1/x2-x1

enter the points in

16-9/4-2=7/2

slope=7/2

y=7/2x+b

enter one of the points in (2,9)

9=7+b

b=2

y=7/2x+2

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The area of a rectangle is 55 yd^2 , and the length of the rectangle is 4 yd less than three times the width. Find the dimension

zvonat [6]

45 or a random number lol just put in 45 and see if it orks

6 0

2 years ago

Write a quadratic function with zeroes 0 and 8.

Jlenok [28]

Answer:

$x^2-8x=0$

Step-by-step explanation:

the quadratic function should be as follows:

$x^2-8x=0$

Now let's confirm that the zeros of the function are 0 and 8

$x^2-8x=0=x(x-8)=0$

Therefore we can see that if x = 0

$0^2*8*0=0\\0=0$

the equation is fulfilled

And we also have $(x-8)$

for this expresion to be equal to zero:

$x-8=0\\x=8$

thus, if x = 8

$8^2-8*8=0\\64-64=0\\0=0$

the equation is also fulfilled

The zeros of the quadratic function $x^2-8x=0$ are 0 and 8.

3 0

2 years ago

Expand.<br> If necessary, combine like terms.<br> (x+3)(x – 3) = ?

Kobotan [32]

Step-by-step explanation:

multiply it

x²-3x+3x-9=0

x²-9=0

x²=9

square root both side we get

x=3

5 0

2 years ago

Read 2 more answers

Please help.<br> Algebra.

Arlecino [84]

Answer:

Step-by-step explanation:

4) C looks pretty good

5) D looks great

:) ask if you'd like to know how I figured that out

6 0

2 years ago

Given h(x) = 5x + 2, solve for 2 when h(x) = -8.

san4es73 [151]

Answer:

$\huge\boxed{\sf x = -2}$

Step-by-step explanation:

$\sf h(x) = 5x+2\\\\Put \ h(x) = -8\\\\-8 = 5x+2\\\\Subtract \ 2 \ to \ both \ sides\\\\-8-2 = 5x\\\\-10 = 5x\\\\Divide\ both \ sides \ by \ 5\\\\-10 / 5 = x \\\\x = -2 \\\\\rule[225]{225}{2}$

Hope this helped!

8 0

2 years ago