Answer: 35gh, 40mn
Step-by-step explanation:
You just multiply the numbers!
X^2 + y^2 = 25
2x + y = -5.....y = -2x - 5
x^2 + (-2x - 5)^2 = 25
x^2 + (-2x - 5)(-2x - 5) = 25
x^2 + (4x^2 + 20x + 25) = 25
5x^2 + 20x + 25 = 25
5x^2 + 20x = 0
5x(x + 4) = 0
5x = 0 2(0) + y = -5
x = 0 y = -5
x + 4 = 0 2(-4) + y = -5
x = -4 -8 + y = -5
y = 3
solutions are : x = 0, y = -5.....and x = -4, y = 3
Answer:
2j - 53
Step-by-step explanation:
"53 less than twice jose's score" comes out to 2j - 53.
Answer/Step-by-step explanation:
a. Using two points on the line (0, 2) and (4, 12), find the gradient:
Gradient = ∆y/∆x = (12 - 2) / (4 - 0) = 10/4 = 2.5
Gradient = 2.5
b. The gradient, 2.5, represents the unit rate. That is, the volume of the oil in the tank per second.
i.e. 2.5 litres per second
c. The value, L = 2 represents the y-intercept, which is the starting value or initial volume of oil in the tank at 0 secs.
<h2>587</h2>
Step-by-step explanation:
A lead cube of side 
is used to make spherical pellets of diameter 
.
As the volume of lead is conserved, the volume of raw material equals the volume of finished products.
Let us assume that 
cubes are produced. Volume of a cube of side 
is 
. The volume of a sphere of diameter 
is 
.
n is rounded off to 587.
∴ 587 spherical pellets can be made.
