Answer:
1/2x^2 -3
Step-by-step explanation:
The first equation is 1/2x^2 + 1 and since this equation is the first one minus 4 1-4= -3 so you would get this new equation.
C. 38.46% To get your answer you divide the number of students who liked sandwiches by total number of students in the cafeteria. Example: 10/26=.3846 which is 38.46%
Answer:
34 ft. tall
Step-by-step explanation:
Your first step should to draw a diagram. When you do that, your diagram should look like a right triangle, the leg, or the distance from the firetruck to the building, (we'll call this a) should be 30ft. and the hypotenuse, or the ladder (we'll call this c), should be 45ft.
Now we have a visual so it'll be easier.
We know that this problem is a right triangle and we know that to solve for a missing side of a right triangle you use pythagorean theorem: a^2+b^2=c^2
We know one leg 'a' and the hyp. 'c' and we just need to find 'b' the other leg (aka the building):
Plug in numbers and simplify:
30^2+b^2=45^2
900+b^2=2025
b^2=1125
≈33.54 OR 34 ft. tall
Answer:
Step-by-step explanation:
The SA would be 10e² because there are 10 squares.
The V would be 2e³ because there are 2 cubes.
Part A
If e = 5 cm, simply plug it into the SA formula we have already.
SA = 10e² = 10*5² = 10*25 = 250 cm².
Part B
If e = 5cm, simply plug it into the V formula we have already.
V = 2e³ = 2*5³ = 2*125 = 250 cm³.
Now we need to find what percent of 250 is 150?
250p = 150
p = 150/250 = 3/5 = 0.6 = 60%
