You use Pythagorean theorem to solve this problem.a^2+b^2=c^2
A.53*53=45*45+28*28
2809=2025+784
2809=2809
B.85*85=13*13+84*84
7725=169+7056
7725=7725
C.85*85=36*36+77*77
7725=1296+5929
7725=7725
D.65*65=16*16+61*61
4225=256+3721
4225=3977
The answer is D
Answer:
Step-by-step explanation:
4(4) = -7(-3) - 5
16 = 21 - 5
16 = 16
answer is D
Answer:
Yes it represents.
Variation tax = 0,25
Step-by-step explanation:
Direct variation is the name we gave to the rate of change of a first degree function.
A first degree generic function is:
y = f(x) = ax + b
Now observe the question's function:
- x + 4y = -2
4y = x - 2
y = 1/4x - 2/4
y = f(x) = 0,25x - 0,5
0,25 is our constant variation, because any number that x assume will be multiplied by 0,25.
Answer: $7.58/2=$3.79
Step-by-step explanation:
