Answer:
see below
Step-by-step explanation:
Vertical angles are formed by two lines and are opposite each other
Vertical angles are equal
So to find the answer of the area, you have to multiply 7 and 8 which would equal to 56.
Volume of the cone:
V = 3.14 x 3^2 x 9/3 = 84.78
Volume of half sphere on top of cone:
V = (4/3 x 3.14 x 3^3 )/2 = 56.52
Total volume = 56.52 + 84.78 = 141.3 cm^3
Answer:
h(0) = -2
x = 3
Step-by-step explanation:
Line is intersecting x and y axes at points (1, 0) & (0, -2)
Slope of line (m) = (-2 - 0)/(0 - 1) = -2/(-1) = 2
y - intercept (b) = -2
Equation of line in slope-intercept form is given as:
y = mx + b
plugging the values of m and b in the above equation, we find:
y = 2x + (-2)
y = 2x - 2
Replacing y by h(x), we find:
h(x) = 2x - 2 (This is the required function)
Plug x = 0 in the function, this gives:
h(0) = 2(0) - 2
h(0) = 0 - 2
h(0) = -2
Plug h(x) = 4
4 = 2x - 2
4 + 2 = 2x
6 = 2x
x = 6/2
x = 3
