Answer:
C.250
Step-by-step explanation:
If f(x) varies directly with x^2
f(x) = k * x^2
f(x) = 40 when x=2. Substitute these values in
40 = k(2)^2
40 = k*4
Divide by 4
40/4 = 4k/4
10 =k
f(x) = 10x^2
Now we want to find f(x) when x=5. Substituting
f(5) = 10 *5^2
f(5) = 10 *25
f(5) = 250
Answer:
Algebra is a branch of mathematics dealing with symbols and the rules for manipulating those symbols. In elementary algebra, those symbols (today written as Latin and Greek letters) represent quantities without fixed values, known as variables.
Step-by-step explanation:
The angles labeled 22, 1, and 2 are part of a triangle. 1 is a 90 degree angle.
So, 2 is 180-90-22=68 degrees.
3 is 180-68=112 degrees, since it forms a straight line if joined with angle 2.
4 is also 112 degrees since it is vertical with 3. .
5 is 180-112=68 because it makes a straight line with 4.
And so on
Answer:
(0, 3 ) and (2, 0 )
Step-by-step explanation:
To find the y- intercept let x = 0 in the equation and solve for y
y = - 1.5(0) + 3
y = 3 ← y- intercept ⇒ (0, 3 )
To find the x- intercept let y = 0 in the equation and solve for x
0 = - 1.5x + 3 ( subtract 3 from both sides )
- 3 = - 1.5x ( divide both sides by - 1.5 )
x = 2 ← x- intercept ⇒ (2, 0 )
Answer:
Step-by-step explanation:
The second one is perimeter, not area. The first one is correct.
