Answer:
D) 67.4°
Step-by-step explanation:
by observation, and noting that triangle PQR is a right triangle
sin R = opposite length / hypotenuse
in our case, the hypotenuse is PR = 13 and the length opposite form R is QP = 12
hence
sin R = opposite length / hypotenuse
sin R = 12/13
R = sin⁻¹ (12/13) = 67.4⁰
The mixed number have to become a improper fraction and then you have to subtract like this.
so 7 7/8 you have to multiply 7 times 8 and then add it by 7 .
You do the same thing with the other mixed number 3 times 4 plus 1
So the first one is 63/8 - 13/4 =
first the 4 in the 13/8 have to become 8 . so you do 4 times 2 = 8 and multiply the 13 by 2 = 26 .
so equal
63/8 - 26/8 = then you have to do 63 - 26 = 37 so is 37/8 and then simplify or divide .
when you divide you suppose to get 4 5/8
Answer:
x=25/6
Step-by-step explanation:
3x+11=9x-14
11=6x-14
25=6x
x=25/6
Answer
260 kilograms
Step-by-step explanation:
the correct answer is 260 kg