A negative cannot be a root, 8= 2.4
Answer:
Brainliest please
50years is their ages now
Step-by-step explanation:
<h3>use algebra</h3>
onyango= 3a
daughter= let it be a
son= he is 4 times less than his father, 3/4a
8years
8+3a+a+8+3/4a+a
a+8+3/4a+a
7/4+1 = 8/4a+8 + 12y 20= 8/4a = 40years is the father 8 years later, so his present age is 40-8
32y= father now
daughter= 1/3×32=10years
son= 1/4×32= 8yrs
add 32+10+8= 50years
Why would someone answer all of this for o ly 5 points? lol
For a vector:
cos^2(α) + cos^2(β) + cos^2(γ) = 1
From the givens:
α = π/4, therefore, cos(α) = 1/root 2 and cos^2(<span>α) = 1/2
</span>β = π/3, therefore, cos(β) = 1/2 and cos^2(<span>β) = 1/4
Substitute in the above equation:
1/2 + 1/4 + </span>cos^2(γ) = 1
cos^2(γ) = 1 - 1/2 - 1/4
cos^2(γ) = 1/4
cos(γ) is either 1/2 or -1/2
For cos(γ)= 1/2 .......> γ = <span>π/3
For </span>cos(γ)= -1/2 .......> γ = 2π/3
