<u>Answer</u>
3
<u>Explanation</u>
The two lines in the diagram are secants meeting outside the circle.
The products of a secant and the extension of the chord of one line is equal to the products of a secant and the extension of the chord of the other line.
∴ 4 × 9 = x × 12
36 = 12x
x = 36/12
= 3
We are given function f(x) =3x-12
We have to find the value of f(2), that means we plug x as 2 in the given equation
f(2) = 3(2)-12
f(2) =6-12
f(2)=-6
Answer f(2)=-6
Answer:
Solution given.
The length of the prism is <u>5</u>m.
The width of the prism <u>is</u><u> </u><u>4</u> m.
The height of the prism is <u>3</u>m.
The prism holds a total <u>of5</u><u>*</u><u>4</u><u>=</u> <u>2</u><u>0</u> cubes.
The volume is <u>l</u><u>*</u><u>w</u><u>*</u><u>h</u><u>=</u><u>5</u><u>*</u><u>4</u><u>*</u><u>3</u><u>=</u><u> </u> <u>6</u><u>0</u>m3.
Answer:
<u>417.4ft^2</u>
Step-by-step explanation:
Surface area of a cone = πr(r+√r²+h²)
r is the radius
h is the height
Substitute
Surface area of a cone = π(5)(5+√5²+21²)
Surface area of a cone = πr(5+√25+441)
Surface area of a cone = π(5)(5+21.59)
Surface area of a cone = 3.14*5*26.59
Surface area of a cone <u>= 417.4ft^2</u>
<u>Hence the surface area of the cone is 417.4ft^2</u>
