Answer:
Step-by-step explanation:
<u>Ratios and Proportions
</u>
The ratio between two numbers x and y is defined as x/y. It measures how many times y is contained in x. For example 12/8 = 1.5 means 12 is 1.5 times 8.
We have two key sets of data: the ratio between the surface areas of the cylinders and the fact that the radius and heights of the cylinders come in the same proportion.
First, we can easily compute the ratio of the surface areas
It gives us the relation
Computing the square root
Computing the cube
Answer:
x=±√7
Step-by-step explanation:
Hi there!
We're given the quadratic equation 6x²-42=0 and we need to find the roots of the equation (the values of x that make the equation true).
So we need to isolate x onto one side.
We can start by adding 42 to both sides
6x²=42
divide both sides by 6
x²=7
Now, take the square root of both sides (remember that when we take the square root, we get both POSITIVE and NEGATIVE answers).
x=√7 and x=-√7 (can be rewritten as x=±√7)
Hope this helps! :)
A. For the first company, the equation is: y = 0.15x
Answer:
57.14%
Step-by-step explanation:
So if he removes an orange ball from the bag, that means there are 8 white golf balls and 6 orange golf balls - 14 balls in total
8 balls of the 14 are white, so to find the percent we can set up a proportion
8/14=x/100
you can simplify 8/14 to 4/7
4/7=x/100
cross multiply
7x=400
divide by 7 on both sides
x=57.14%
Answer:
B. They were at the same elevation after riding the escalator for 8 seconds
Step-by-step explanation:
Point of Intersection