Answer:
Explanation:
in each of the following substitute x with the variables in the bracket.
f(a) = 5x - 6
= 5a - 6
f(a+h) = 5 (a + h) - 6
= 5a + 5h - 6
f(a+h) - f(a) = (5a + 5h - 6) - (5a - 6)
= 5a + 5h - 6 - 5a + 6
= 5h
(as the 5a's and 6's cancel each other out.)
f(a+h) - f(a)/h = 5a + 5h - 6 - ((5a - 6)÷h)
take l.c.m
= <u>(5ah + 5h^2 - 6h - 5a + 6)</u>
h
Answer:
hope this helps and make me brainliest
Step-by-step explanation:
. You have that:
- The homeowner want the length of the swimming pool to be 4 feet longer than its width.
- He wants to surround it with a concrete walkway 3 feet wide.
- He can only afford 300 square feet of concrete for the walkway.
2. Therefore, the tota area is:
At=L2xW2
L2 is the lenght of the walkway (L2=L1+3+3⇒L2=(W1+4+6)⇒L2=W1+10).
W2 is the width of the walkway (W1+3+3⇒W2=W1+6)
3. The area of the walkway is:
A2=At-A1
A2=300 ft²
4. Therefore, you have that the width of the swimming pool is:
A2=(W1+10)(W1+6)-(W1+4)(W1)
300=(W1²+6W1+10W1+60)-(W1²+4W1)
W1²+16W1+60-W1²-4W1-300=0
12W1-240=0
W1=240/12
W1=20 ft
5. And the length is:
L1=W1+4
L1=20+4
L1=24 ft
Answer: 10 + 9 + 0.6 + 0.05
Hello!
You draw a table or write this out
If you pick vanilla you can get 4 different fruits
That is 4 different yogurts
If you pick chocolate you can choose 4 different fruits
Same for strawberry
So there are 12 different combinations
The answer is 12
Hope this helps!
