Answer:
Step-by-step explanation:
<, > - open circle
≤, ≥ - closed circle
<, ≤ - draw the line to the left
>, ≥ - draw the line to the right
Answer:
y = -0.8x - 5
Step-by-step explanation:
x1 = (XA + XB) / 2 = -5
y1 = (YA + YB) / 2 = -1
m = (XA - XB) / (YA - YB) = -0
__________________________________________
(y - -1) = -0.8(x - -5)
y - -1 = -0.8x - 4
y = -0.8x - 4 + -1
y = -0.8x - 5
Answer:
36π mm²
Step-by-step explanation:
Please, Mark, it's π or pi, not pie.
Formula for the area of a circle: A = πr²
so, if the radius is 6 mm, the area is A =π(6 mm)² = 36π mm²
Answer:
112 lights
Step-by-step explanation:
The rule c=14f gives the number of lights, c, there are for each foot, f, of wire.
We need to find the number of light on 8 feet of wire.
Put f = 8 in the given rule equation
c = 14 × 8
= 112
Hence, there are 112 lights on 8 feet of wire.
Answer:
<h2>224 cubic inches</h2>
Step-by-step explanation:
It's a prism.
The formula of a volume of a prism:
<em>B</em><em> - area of a base</em>
<em>H</em><em> - height</em>
We have a triangle in the base.
The formula of an area of a triangle:
<em>b</em><em> - base</em>
<em>h</em><em> - height</em>
We have <em>b = 4in, h = 7in</em>.
Substitute:
Put the value of a base <em>B = 14 in²</em> and the height <em>H = 16 in</em> to the formula of a volume: