Answer:
y-intercept = (-2,0)
Step-by-step explanation:
the "C" is the answer
Answer:
Step-by-step explanation:
A triangular pyramid has a base with an area of 21.8 square meters, and lateral faces with bases of 7.1 meters and heights of 9 meters. Enter an expression that can be used to find the surface area of the triangular pyramid.
The expression is written as:
Surface Area = Area of the base + 1/2( Perimeter × Slant height)
60/5 is 12. So they are $12 each.
So what is $12*2=$24
The sample size is 36 because 3x12=36
So the correct answer is C
Good luck with future problems m8
Answer:
It takes 20 weeks to empty the lake
Step-by-step explanation:
Some rate, let's call it 
empties the lake in 10 weeks and a river (with rate 
can fill the lake in 20 weeks. The idea behind the solution of this type of problem is always set the rate to the same units. Let's see this:
which implies that this rate empties 0.1 of the lake per week, thus, 
.
Using the same idea, we can obtain that the filling rate of the river is:
Since both rates are acting at the same time, the total rate of flowing water (either in or out the lake) would be given by:
, which means that the lake is being empty at a rate of -0.05 week and using the rule of three:
Thus, It takes 20 weeks to empty the lake.
