180 = 72 + (2x) + x
subtract 72 from both sides.
108 = 3x
divide both sides by 3.
36 = x
m<DEF = 72*
m<EFD = 72*
m<EDF = 36*
M<FDG = 36 / 2 = 18 <<<<<<<
Answer:
C.250
Step-by-step explanation:
If f(x) varies directly with x^2
f(x) = k * x^2
f(x) = 40 when x=2. Substitute these values in
40 = k(2)^2
40 = k*4
Divide by 4
40/4 = 4k/4
10 =k
f(x) = 10x^2
Now we want to find f(x) when x=5. Substituting
f(5) = 10 *5^2
f(5) = 10 *25
f(5) = 250
Answer:
A = 60 and B = 30
Now, A + B = 60 + 30 = 90
Also, A – B = 60 – 30 = 30
sin (A + B) = sin 90 = 1
sin A cos B + cos A sin B = sin 60 cos 30 + cos 60 sin 30
Answer:
390
Step-by-step explanation:
find the fraction of those that don't like math
10/10 - 7/10= 3/10
then do 3/10 x 1300 to get 390
volume for a sphere (ball) is 4/3 x PI x r^3
r = 6.3, r^3 = 6.3^3 = 250.047
volume = 4/3 x 3.14 x 250.047 = 1046.863
rounded to nearest hundredth = 1046.86 cubic inches
