To multiply these two binomials, we will use the F.O.I.L. method.
First-Outer-Inner-Last
First take the product of the first terms, which is 20x².
Then take the product of the outer terms which is 8x.
Then the product of the inner terms which is -20x.
Lastly take the product of the last terms which is -8.
Now let's combine like terms.
So our final answer is 20x^2 - 12x - 8.
Answer:
Exterior Angle = 36 degrees
Step-by-step explanation:
<u><em>Each interior angle of a regular decagon measures 144 degrees.</em></u>
=> <u><em>We'll subtract 144 from 180 to get the measure of the exterior angle.</em></u>
=> Exterior Angle = 180-144
=> Exterior Angle = 36 degrees
Answer:
6) -7 + 10 = 3 (3 more; total number doesn't matter)
7) 50w + 20
8) c / 5
9) 5 + 2t
10) 4d + 2d
I didn't see the trick problem!
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.
Answer:
(1,3/2)
Step-by-step explanation: x=(-4+6)/2=1
Y=(8-5)/2=3/2