Answer:
Step-by-step explanation:
sqrt(28): sqrt(4*7)
sqrt(4) = 2;
sqrt28)=2*sqrt(7)
sqrt(343): sqrt(7 * 7 * 7) = 7 * sqrt(7)
Note: the rule is if you have 3 equal primes under the root sign, you leave one, you throw one away, and you put one outside the root sign.
2 sqrt(63) = 2 sqrt(3*3*7) The above rule gets modified to throw 1 three away and take the other one outside the root sign.
2sqrt(63) = 2*3 sqrt(7)
Numerator: 2*sqrt(7) + 7sqrt(7) = 9sqrt(7)
9sqrt(7)
======
6 sqrt(7)
3/2
Note without brackets I cannot be certain that I have interpreted this correctly. The division only apply to sqrt(343) / 2 sqrt(63). If this is so please leave a note.
She got 1 more goal than on Friday
Answer:
C.
The remaining credit hours decrease by 9 for each semester completed.
Answer:
x=1
Step-by-step explanation:
perimeter of the square is 
perimeter of the rectangle is 
As rectangle and square have the same perimeter, we get that:
Hello!
Assuming that AC contains the points we are given, we will look at both values. We can see that both x values are the same, -2, so this is a vertical line segment. Therefore we need to find the difference between our y-values.
1--3
1+3
4
Therefore, the distance is 4 units.
I hope this helps!
