Answer:
9x+7y+13
Step-by-step explanation:
5x+4x=9x
3y+3y+y=7y
5+8=13
Answer:
15k+5
Step-by-step explanation:
11k-3+4k+8
=(11k+4k) (-3+8)
=15k+5
Answer:
0.857..miles/sec
Step-by-step explanation:
this is basically your distance divided by the time:
miles/hr in this case
Speed= 0.75/0.875 = 0.857... miles/sec
Hope this helps!
Please mark brainliest if you think I helped! Would really appreciate!
Answer:
x=4 and x=-4
Step-by-step explanation:
We assume you intend ...
y = (x^2 +5x +6)/(x^2 -16)
There will generally be points of discontinuity where the denominator is zero. Sometimes a denominator factor will be cancelled by a numerator factor, but the "hole" remains and there is still a discontinuity there.
Here, the denominator factors as the difference of squares:
x^2 -16 = (x -4)(x +4)
There will be discontinuities where these factors are zero, at x=4 and x=-4.
