Answer:
Ok for the 1st and 2nd paragraph, each person will need to pay 20 dollars each. For the 3rd paragraph, you could say your favorite restaurant is McDonalds. For you, you could have a strawberry milkshake, medium fries, and a Big Mac. For your second friend, they could have a coca cola, a salad, and large fries. For your third friend, they could have a lemonade, lettuce hamburger, and chocolate ice cream. For your fourth friend, they could have a Oreo Mc flurry, chicken nuggets, and small fries.
Restaurant name: McDonalds
Price: 59.99/60.00
Cost of each persons order: you pick
Each person should leave 5 dollars as a tip.
The total including tip: 79.99/80.00
Each person will pay 15.00
I dont know the last one sorry
Answer:
cos(F) = 9/41
Step-by-step explanation:
The triangles are similar, so you know that ...
... cos(D) = cos(A) = 40/41.
From trig relations, you know ...
... cos(F) = sin(D)
and
... sin(D)² +cos(D)² = 1
So ...
... cos(F) = sin(D) = √(1 -cos(D)²) = √(1 -(40/41)²) = √(81/1681)
... cos(F) = 9/41
_____
The ratio for cos(A) tells you that you can consider AB=40, AC=41. Then, using the Pythagorean theorem, you can find BC = √(41² -40²) = √81 = 9.
From the definition of the cosine, you know cos(C) = BC/AC = 9/41. Because the triangles are similar, you know
... cos(F) = cos(C) = 9/41
So basically what you wanna do is multiply across giving you 40/88 which you can simplify down to 5/11
Hope this helps :D
Answer:
see below
Step-by-step explanation:
a) 2(x - 1) = 4 (x + 2)
Distribute
2x-2 = 4x+8
Subtract 2x from each side
2x-2x-2 = 4x-2x +8
-2 = 2x+8
Subtract 8 from each side
-2-8 = 2x+8-8
-10=2x
Divide each side by 2
-10/2 = 2x/2
-5 =x
b)(3 - x) (x + 2) = 0
We can use the zero product property
3-x = 0 x+2= 0
3-x+x=0+x x+2-2=0-2
3=x x=-2