Answer:
30%
Step-by-step explanation:
total boxes of pizza = 20
he gave away 14 boxes
so pizza left is 20 - 14 = 6 boxes
to calculate percentage = 6 / 20 * 100
= 6 * 5
= 30%
Answer:

Step-by-step explanation:

Expand brackets.

This is in quadratic form.

Since this is for equal roots:







Plug k as 0 to check.

False.
So that means k must equal 6.
Answer:
Area = 64 cm²
Step-by-step explanation:
To find the area, we have to follow some steps:
=> <u>Step 1: Make the bases similar:</u>
Since we have 2 bases given 6 and 10 we have to come up with a third base by finding their average:
(6 + 10) / 2
(16) / 2
8
So now that we know our base,
=><u> Our second step is to multiply the base we found by the height of the trapezoid:</u>
Area = common base * height
Area = 8 * 8
Area = 64 cm²
Hope this helps!
The answer is 180.add 40 to its self or multiply by 4 then add 20 for the .5 portion, 40x4=160 160+20=180.
hoped this helped =)