B)
it is 15 more than A so the A has to go first
B 50 x 70
Since 52 rounds to 50 and 67 round to 70
Answer:
-7
Step-by-step explanation:
Answer:
C.
Step-by-step explanation:
14/3 = 4.7 which seems about right for the Y-intercept & the gradient is - 1/3.
Gradient = rise /run
= 1/3
Hope this helps!
Answer: 8 and 9 or -9 and -8
Step-by-step explanation:
Let
be the first of the two integers. Then, since the numbers are consecutive,
is the other integer. We then know that the sum of the squares of
and
is equal to 145. So, now we have the equation

which can be expanded and simplified to

which then gives us the quadratic equation

This can then be factored into

Which can be simplified further into

So either
or
. This gives us two solutions: 8 and 9 or -9 and -8.
Hope this helps! CHEERS!