Answer:
B C F
Step-by-step explanation:
If you reduce those answer and try to find the square roots, the decimals are terminating and never ending, while the others are perfect squares.
You need to solve this "system of linear equations." In other words, find a point (x,y) that satisfies both 4x-3y=17 and 2x-5y=-11.
Try solution by elimination. Multiply the 2nd equation by -2 to obtain -4x+5y=22. Add this result to the 1st equation. I'd suggest you write this out to see what is happening.
4x-3y=17
-4x+10y=22
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7y=39. Solving for y, we get y=39/7 (a rather awkward fraction).
Now find x. To do this, substitute 39/7 for y in either of the given equations. Solve the resulting equation for x.
Write your solution in the form (x, y): ( ? , 39/7).
Answer:
2769.48 sq. mm
Step-by-step explanation:
The formula for the surface area of a hemisphere is 2πr^2. Using the formula(and approximating pi as 3.14) the answer of 2769.48 is reached. Approximate that however you want.
Hope this helps!
So for every hour they make 21.70 I’m not sure if that’s how constant of proportionality works since I never learned that sorry