The formula to find the area of a parralogram is base x height. the base is 39 and the height is 8! Now all you have to do it multiply. So you’re final answer is 312! Don’t listen to the other person they just wanted the points! Answer: 312 !
<2 + 95 = 180 straight line
<2 = 180-95 = 85
right angle +144 + <2 + <1 = 360 degrees ( quadrilateral)
substitute knowns
90 +144 +85 +<1 = 360
combine like terms
319 +<1 =360
<1 =41
Answer:
Step-by-step explanation:
We can draw a perpendicular line through the two parallel lines to create a pentagon (there is an image attached in case you need to see where the line intersects the two parallel lines). Since the angle sum of a pentagon is 
, we can solve for 
.
(Angle sum of pentagon is )
(collect like-terms)
Hope this helps :)
8k = 4/9
Divide 8 to both sides, or multiply by its reciprocal 1/8:
k = 4/9 * 1/8
k = 4/72
k = 1/18
Answer:
495 milliliters of the 95% mixture are needed.
Step-by-step explanation:
Given that I need a 90% alcohol solution, and on hand I have a 55 ml of a 45% alcohol mixture, and I also have 95% alcohol mixture, to determine how much of the 95% mixture will I need to add to obtain the desired solution, the following calculation must be performed:
55 x 0.45 + 45 x 0.95 = 67.5
25 x 0.45 + 75 x 0.95 = 82.5
15 x 0.45 + 85 x 0.95 = 87.5
10 x 0.45 + 90 x 0.95 = 90
10 = 55
90 = X
90 x 55/10 = X
4,950 / 10 = X
495 = X
Thus, 495 milliliters of the 95% mixture are needed.
