Answer:
A (DE = GF)
Step-by-step explanation:
In a isosceles trapezoid, one pair of segments are parallel, and another pair are equivalent in length.
The only choice that fits this criteria is A, where DE equals GF.
Answer:
The 5th day must be 90
Step-by-step explanation:
The first 4 days averaged out to 80
You can find their total just by multiplying by 4. That won't tell you the exact values, but it will tell you their total when you add the 4 of them together.
80*4 = 320
Now you need to add another day into the mix. Call it x
320 + x
Now there are 5 days, not 4, and the new total is 82.
(320 + x) / 5 = 82 Multiply both sides by 5
5*(320 + x) / 5 = 82 *5
320 + x = 410 Subtract 320
-320 -320
x = 90
These lines are perpendicular because y = -6 is a horizontal line with a slope of 0 and x = 6 is a vertical line with an undefined slope
- How do you simplify this?
- x²y+xy² / y²+2/5 × xy
Factor the expressions that are not already factored.
_____
<u>How </u><u>to</u><u> factorise</u><u> </u><u>:</u><u>-</u>
<u>NUMERATOR</u> 
Factor out xy.
<u>DENOMINATOR</u>
Factor out 1/5.
_____
Continuing...
Cancel out y in both the numerator and denominator.
Expand the expression.
This can further simplified to as
