Answer:
=2m−7
Step-by-step explanation:
For this, we use the FOIL method of expanding brackets; start by multiplying the FIRST terms of each bracket together to get xx=x^2. Next multiply the OUTSIDE elements, ie the first element in the first bracket and the last in the second, giving x(-5)=-5x. Then comes the INSIDE elements, giving 4x=4x, and finaly the LAST elements of each bracket, giving 4(-5)=-20. Adding all these terms together gives us our answer; x^2+4x-5x-20, which can be simplified to x^2-x-20.
Hope this helps!
Answer:
6 km/hr
Step-by-step explanation:
Sue can ride her bike 14 km/hr faster than she can walk. So for each step, add 14 km/hr.
Solve
Therefore, it is 6.
Answer:c
Step-by-step explanation:
Answer:
7. 32
8. 68
9. 16
10. 29
Step-by-step explanation:
7. =90°-58
=32
8. =68°
9. = (1 + 5x)°
= (1 + 5(16)°
=81
10. = (2x + 3)°
= (2(29) + 3)°
= 61°
