Not clear on what you're asking buddy-boo
Answer:
x² +11x +28
Step-by-step explanation:
(x +4) (x+7)
take the first x and multiply by x and then the 7 which gives you x² +7x
then take the 4 and multiply it by the x and the 7 which gives you 4x + 28
add all like terms
Answer:
Step-by-step explanation:
The formula of a circumference of a circle:
<em>r</em> - radius
The formula of an area of a circle:
<em>r</em> - radius
We have C = 176cm. Substitute to the formula and calculate the radius <em>r</em>:
Calculate the area:
According to the moderator, I should take 
. You can do it like that. In my opinion, my solution is correct.
Find the slope (m) by using Y2-Y1/X2-X1
Y2 = -1
Y1 = 7
X2 = 4
X1 = 2
(-1 - 7)/((4-2) = -8/2 = -4
Use the point-slope formula to determine the equation. You only need to use one set of points. (2,7) in this case.
(y-Y1) = m(x-X1)
(y - 7) = -4(x - 2)
y-7=-4x + 8
y= -4x + 15
Answer:
h = 3.6
Step-by-step explanation:
This is just substituting in for variables and solving for x. The hard part is knowing the formula.
R = h((a+b)/2) where a and b are the 2 different bases, h is the height or latitude, and R is the area of a trapezoid, is the formula.
Given that R = 8.1, a = 1 and b = 3.5, we can substitute these equations in the formula.
(8.1) = h(((1) + (3.5)) / 2)
= h((4.5) / 2)
= h(2.25)
8.1/2.25 = h
3.6 = h
