2000(3/5)
6000/5
1200
So 1200 doctors used brand X
Let the numbers be a and b, then ab=0.2 and a/b=0.8, so a=0.8b. Therefore, 0.8b^2=0.2 and b^2=0.2/0.8=2/8=1/4 and b=+1/2 or +0.5 and a=+0.8*0.5=+<span>0.4. The two numbers are therefore 0.5 and 0.4 or -0.5 and -0.4. The quotient is 0.4/0.5</span>
Answer is A and obtuse angle is wider than a right angle
Answer:
C
Step-by-step explanation:
Using the rule of exponents
=
Note that 8 = 2³, thus
=
=
= 2²
Answer:
54.36
Step-by-step explanation:
Cos