Answer:
2.9
Step-by-step explanation:
3.6 - 0.7 = 2.9
Answer:
x=-16
Step-by-step explanation:
from x=-3 to get to y=12 u need to multiply x=-3 by -4 to get to 12 so for y=64 u need to divide by -4 which equals x=-16
Answer:
30 cans
Step-by-step explanation:
We can use ratios
15 cans x cans
---------------- = ------------------
7*2 people days 4*7 people days
Using cross products
15 * 28 = 14 * x
Divide by 14
15 * 28/14 = x
30 =x
Answer:
B
Step-by-step explanation:
The problem wants you to PLUG IN x into the correct equation.
1) f(-1) means -1 equals x
f(3) means 3 equals x
For example g(9) means 9 = x and f(3/5) means 3/5 = x and so on.
2) Now that you know x equals two numbers -1 and 3 you have to plug them into a equation.
3) Which equation do you plug it in you may ask? You must plug in -1 into x^2 +3 BECAUSE the condition next to it says you can only plug in numbers to x^2+3 greater than or equal to -1 and less than 2. Therefore, you can plug in -1 to this equation.
-1^2 +3 = <u>4</u>
4) Now you have the number 3. Where do you think we should plug #3 into? Well you can plug it in to the first equation because the condition only allows numbers less then -1. the only option is the last one!!
1, for x >= 2 because 3 is certainly bigger than 2.
This means any number greater than or equal to 2 has to be 1.
SO OUR ANSWER IS 4 AND 1
Answer:
B. The horizontal cross-sections of the prisms at the same height have the same area.
Step-by-step explanation:
<em>Notice that the cone and the pyramid have the same volume. This is important. </em>
This follows the <em>Cavalieri's principle</em> that, for the case of 3 dimensions, as the present case, it states, roughly, that if we have two bodies like the cone and the pyramid, and if we have parallel planes crossing each section, and we always have the same area, these two bodies have the same volume.
In this case, both, cone and pyramid have the <em>same volume</em>, then (reciprocally):
B. The horizontal cross-sections of the prisms at the same height have the same area.
