Answer:
#1 is 60°, #2 is 55°
Step-by-step explanation:
all angles in a triangle add up to 180° so u can just subtract from that for the missing angles. :)
I hope this helps you
Thomas x age
Huilan 3x age
x+3x=112
4x=112
x=28
Tip = 12% × bill
$28 = tip + bill
$28 = bill + 12% × bill
$28 = bill (1 + 12%)
bill = $28÷(1+12%) = $25
Answer:
Step-by-step explanation:
From the picture we find that the sphere and the cylinder has equal heights.
i.e. cylinder has height = 2r.
x,y and r form a right triangle with hypotenuse as r.
Hence pythagorean theorem is satisfied
Area of the cross section parallel to it is area of circle with radius y
=
Volume of cylinder when 2 cones removed =
Hence volume of sphere =
Answer:
Step-by-step explanation:
You know that for weekdays parking the price is $3.50 and weekends are half price. Then for weekends, the price is the following:
You know that Cindy parked in the garage 20 times per month, and three of these days were weekend days. This means that she parked 17 times in week days and 3 times in weekends days.
Therefore, the total amount of money she would spend on parking per month can be calculated with: