Use distributive property:
16. 5k(3 - 4k)
15k - 20k^2
18. 6g^2(g - 8)
6g^3 - 48g^2
20. -2n^2 (5n - 9 + 4n^2)
-10n^3 + 18n^2 - 8n^4
As a decimal, 0.25396825396. As a fraction, it is already simplified.
Complete question :
Point K on the number line shows Kelvin's score after the first round of a quiz: A number line is shown from negative 10 to 0 to positive 10. There are increments of 1 on either side of the number line. The even numbers are labeled on either side of the number line. Point K is shown on 3. In round 2, he lost 9 points. Which expression shows how many total points he has at the end of round 2? 3 + (−6) = −9, because −9 is 6 units to the left of 3 3 + 6 = −9, because −9 is 6 units to the left of 3 3 + (−9) = −6, because −6 is 9 units to the left of 3 3 + 9 = −6, because −6 is 9 units to the left of 3
Answer: 3 + (−9) = −6, because −6 is 9 units to the left of 3
Step-by-step explanation:
Given the following :
Width of number line = - 10 to + 10
Point K on the number line = +3 ( kelvin's score after the first round of quiz).
If Kelvin losses 9 points in round 2 = - 9
Hence at the end of round 2, He'll have a total of :
Point at the end of round 1 + point lost in round 2
3 + (-9) = - 6
There is a way to solve for the interior angles of the polygon add up to, by using the expression: (Note: n being the side: (n - 2)180
solve for the 14 angles first. Plug in 14 for n
14 - 2 = 12
12 x 180 = 2160
All of the angles combined together = 2160°. Note that it is given to us that 13 of the angles = 2016°
Solve for the last angle. Set the last (14th) angle as x:
x + 2016 = 2160.
Isolate the x. Note the equal sign, what you do to one side, you do to the other. Subtract 2016 from both sides
x + 2016 (-2016) = 2160 (-2016)
x = 2160 - 2016
x = 144
Answer: The 14th angle must be 144°
~
346 divided by 2 would be 153. Subtract 92, and that would lead you with 61.
Therefore, the ultimate answer is 61.