If you have at least as many equations as your have unknown variables, the 'system' is solvable (unless the equations are copies of eachother).
In this case, isolate one letter and plug it in the other. I'm going for the 2a in the bottom one (it doesn't matter)
2a - 4b = 12 => (divide by two and move the b's to the other side)
a = 6 + 2b. (plug this one into the top equation)
4(6+2b) + 6b = 10 => 24+8b+6b = 10 => 24 + 14b = 10 => 14b = -14 => b=-1
a = 6 + -2 = 4.
So a=4 and b=-1.
Answer:
Median is 8
Range is 24
Step-by-step explanation:
Please mark me as the brainliest
280 mg = 70 Ml
280/70 = 4
50 mL x 4 = 200 mg
200 mg
LHS: =

(using

)
We know

so we can replace the sin²x in the LHS expression as follows

which is the RHS.