I’m so sorry I cannot help
You with that question I am also having trouble on some questions like that
Answer:
60°
Step-by-step explanation:
Let angle BAE = angle ACD = x
BCD = AEC = 60°
EAC + FCA + ECF + AEC = EAC + x + 60° + 60° = 180°
EAC = 60° - x
BAC = EAC + BAE = 60° - x + x = 60°
Answer:
$7420
Step-by-step explanation:
First, converting R percent to r a decimal
r = R/100 = 2%/100 = 0.02 per year,
then, solving our equation
I = 7000 × 0.02 × 3 = 420
I = $ 420.00
The simple interest accumulated
on a principal of $ 7,000.00
at a rate of 2% per year
for 3 years is $ 420.00.
(r + 1)th term of (a + b)^n = nCr a^(n-r)b^r
here n = 8 , r = 8-7 = 1, a = a and b = y
so we need second term where r = 1:-
= 8 C 1 x^7y
so the coefficient is 8