Answer:
6.8
Step-by-step explanation:
The number is already rounded to the nearest tenth and hundredth.
To find slope, use the equation:
(y₂ - y₁)/(x₂ - x₁) = slope
Let:
(8,8) = (x₂, y₂)
(5,5) = (x₁, y₁)
Plug numbers into corresponding areas.
(8 - 5)/(8-5) = 3/3
3/3 = 1
The slope of the line is 1, or 1/1 (rise 1, run 1)
hope this helps
Lets find the common demoninator of them all, Its 30! so 1/3 of 30= 10
3/5 of 30= 18 7/10 of 30= 21 1/2 of 30 = 15
So that means that 7/10 is the biggest out of them all, That means carlos ran the greatest distance!
D. -4
sq rt of 3x+28-8=x
add 8 to both sides
sq rt of 3x+28 = x+8
square both sides of the equation
3x + 28 = x^2 + 16x + 64
subtract x^2+16x+64 from both sides
group common terms
-13x-36-x^2=0
rearrange and put in quadratic form
x= -13 +/- sq rt of 13^2-4(1)(36) over 2(1)
subtract 169 by 144
x= -12 +/- sq rt of 25 over 2
solve for both sides
x = -13+5 over 2
=-4
x= -13-5 over 2
= -9
now plug in x
sq rt of 3(-4)+28 -8=-4
sq rt of 3(-9)+28 -8= -9
-4 = -4
but
-7 does not = -9
so -4 is the solution
