Answer:
Step-by-step explanation:
(x - 3)/2 = -1
x - 3 = -2
x = 1
(y - 10)/2 = 1
y - 10 = 2
y = 12
(1, 12)
Answer:
22.5 cm^2
Step-by-step explanation:
Amount of paper is going to be measured in area, so we want the surface area of the cone. Since it is a cub it doesn't have a base, so we don't need to count it.
Area of the cone without the base, or what is called the lateral area is pi*r*s where r is the radius and s is the slant height. and of course radius is d/2 where d is the diameter. so let's plug it in. We know diameter is 6 and slant height is 7.5
SA = pi * r * s
SA = pi * d/2 * s
SA = pi * 6/2 * 7.5
SA = 22.5 cm^2
So you will need 22.5 square centimeters of paper.
Answer:
1. D
2. A
3. B
Step-by-step explanation:
1. Add exponents
2. Multiply exponents to outside exponent and to the 16
3. Distribute exponents
Answer:
B D E
Step-by-step explanation:
The total amount of heat is the sum of the heat required to convert the ice to water, raise the temperature of water from 0 to 100°, and convert the heated water to steam. The heats are the product of the mass and the specific heats.
ice to water: (2000 g) x 0.50 cal/g = 1000 cal
raising of temp: (2000 g) x 1 cal/g°C = 2000 cal
water to steam: (2000 g) x 0.48 cal/g = 960 cal
The total amount of heat is equal to 3960 calories or 3.96 kcal.
