Answer:
(a) 4d
(b) 4x+12y
Step-by-step explanation:
If there are 4 pencils in a pack and she buys d packs, the amount of pencils she gets is 4*d, or 4d. The same principle goes for (b). Hope this helps!
Answer:
peregrine falcon
Step-by-step explanation:
you convert the 61.6 feet to miles which is 0.01166667 miles. you multiply that by the seconds in an hour(3600)
so 0.01166667*3600 = 42 miles an hour 75>42
Insert x = 7
so 3/(7+2) - sqr (7-3)
=3 / (9) - sqr (4)
= 1/3 - 2
=1/3 - 6/3
= -5/3
Answer:
h(x) = x - 2
Step-by-step explanation:
h(x) = -2x - 4 -(-3x - 2)
-2x - 4 + 3x + 2
x - 2
Answer:
8.3%
Step-by-step explanation:
To solve this question, we will use <em>permutation.</em>
Permutation helps us calculate the number of ways to order items. Basically we multiply the number of elements that can be placed first, then for second place until there is no empty place.
In this case, the probability of selecting Jim first is 1 over the total number of students that is 4. Then:
To select Al in second place is similar, but this time we have 3 students since Jim has already been placed.
Thus, in total the probability will be: