Answer:
3² or 9
Step-by-step explanation:
Step 1: Add exponents
Step 2: Subtract exponents
You should get 3² because of exponent rules. Remember when you multiply exponents you add the powers and when you divide exponents you subtract the powers.
Answer: 4 centimeters is the mode
Step-by-step explanation: Mode is the number that comes out the most, and 4 comes out 6 times, which is the most.
Answer:
Leah has 48 marbles.
Step-by-step explanation:
Represent the number of marbles that each person has by L and D.
Leah has 28 more marbles than Dan: L = D + 28.
Then (1/3)L = (4/5)D. Here the LCD is 15, and so multiplying this equation by 15 will remove the fractions: 15(1/3)L = 15(4/5)D.
Therefore, 5L = 12D, and D = 5L/12.
Then, since L = D + 28, L = (5/12)L + 28, or
12L = 5L + 336, or
7L = 336, or
L = 336/7 = 48.
Leah has 48 marbles. That means that Dan has 20 marbles.
Answer:
When a 2-D circle is rotated around a line that it does not touch. What is the name of the resulting figure?
The answer is annulus
A sphere with radius 16 m is cut by a plane though it’s a great circle. What is the best description of the cross section that is shown?
B. A circle with radius 16 m
Answer:
y=3, x=2
Step-by-step explanation:
