Answer:
The cost of making 60 calls a month is $20.
Step-by-step explanation:
There was a small typing mistake there. If the fixed charge is $14, the cost of n calls is given by the following equation:
Find the cost of making 60 calls a month.
This is C(60), that is, C when n = 60. So
The cost of making 60 calls a month is $20.
Answer:17
Step-by-step explanation:
So you start off by multiplying 3×5 beacuse of Area=base×height. And its 15. So you then multiply 2×1 and its 2. You add 15+2=17
Answer:
Pretty sure it the 1st one
9514 1404 393
Answer:
k > 9/20
Step-by-step explanation:
If the parabola does not touch the x-axis, the discriminant is negative. That means ...
b^2 -4ac < 0
(-3)^2 -4(5)(k) < 0
9 < 20k . . . . . . . . . add 20k
k > 9/20 . . . . . . . . .divide by 20
<span> For this case we have a rectangle triangle where we know:
hypotenuse of the triangle.
Angle between the base of the triangle and the hypotenuse.
We want to find the height of the triangle.
For this, we use the following trigonometric relationship:
</span>
<span> From here, we clear the value of x.
We have then:
</span>
<span>
Answer: The inclined height of the pyramid is given by: x = 6.93 m</span>
