Answer:
4^7
Step-by-step explanation:
4 * 4 * 4 * 4 = 256
4 * 4 * 4 = 64
Since the number is the same, another way to write the expression is 4^7.
256 * 64 = 16,384
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Answer:
The roots are rational
Step-by-step explanation:
Given
x² = 144 ( take the square root of both sides )
x = ± = ± 12 ← both rational
A rational number can be expressed in the form
where a and b are integers.
12 = ← thus rational
- 12 = ← thus rational
Answer:
B. 455
Step-by-step explanation:
The order in which the toppings are chosen is not important. So we use the combinations formula to solve this question.
Combinations formula:
is the number of different combinations of x objects from a set of n elements, given by the following formula.
In this question:
3 toppings from a set of 15. So
455 3-topping sundaes can be made.
The rule for a reflection over the x -axis is (x,y)→(x,−y) .
Y = 2x + 2
This is the equation in the form of y = mx + b.