Answer:
it would be 3025
Step-by-step explanation:
605
x. 5
3025
First, divide both sides by 3. I think your mistake was that you were multiplying -3. Please note that in order to cancel something out you need to do the reverse operation. The reverse operation of subtraction is addition and the reverse of multiplication is division.
3(a - 5) = -6
a - 5 = -2
Now add 5 to both sides
a - 5 = -2
+5 +5
a = 3
Hope this helps!
I guess you mean the derivative of:
√7x + √2x, if so then:
Remember that the derivative of √u = 1/(2√u) . u'
if 7x = u, then u' = 7 , hence the derivative of √7x is 7/(2√7x)
Use same logic for √2x and you will find:
y' = 7/(2√7x) + x/√2x
5 (x-2y)=20
x-2y=20/5
x-2y =4
-2y=4-x
y=- 4-x/2
ans -4-x/2
You'd like to think 1 is true. I wonder if it really is though. There are so many horror stories out there about people in University courses that will be paid off by a McDonald's employee. (Sorry if that's you).
Again you hope this is true, but much depends on where you are. You can have a mansion in a ghetto area and it is worth next to nothing.
I should hope so.
The 4th one is a physical relationship. If the person is driving all the time it is true. There is a positive relationship.
The last one would have a random result.
All of these or none of them could have positive results. If you treat it as a pure math question, 1 should, 2 should, 3 should, 4 should and 5 should not. This question is far too subjective to get 100%. If you say anything at all, arguing it is very worthwhile. State your case and then shut up if your marker disagrees.
