Answer:
= - 4 cm/s
Step-by-step explanation:
Let us revise the chain rule
If = a and 
= b, then
= ÷ = 
∵ y = x² + 1
- Use the differentiation to find
∴ = 2x
∵ x = -1
- Substitute x by -1 in
∴ = 2(-1)
∴ = -2
∵ = ×
∵ = 2 cm/s
∴ = (-2) × (2)
∴ = - 4 cm/s
0.4219 Approximately .
Also HIIII
Joyce and Tina had an equal amount of money
Lets x = # of days they spent money
Joyce spent $24 still had $64 left = 24x + 64
Tina spent $28 a day and spent all her money, no left = 28x
Both has equal amount of money so
28x = 24x + 64
Subtract 24x from both sides
4x = 64
Divide both sides by 4
x = 16
Answer:
Tina spent all her money in 16 days.
Answer:if We should put it in a decimal it’s 0.1 as a fraction it’s 11/110
Step-by-step explanation: You have to add all the numbers from the table and then add 11 wich makes it 11/110 you also add 11 beacahss it’s how many times yellow has landed on tails hope I am right
We have that Clarence sells yearly subscriptions to a particular magazine.
He sells at least 10 and not more than 25 subscriptions each week.
The function f(t) = 48t represents the amount of money earned for selling t subscriptions each week.
So;
10 ≤ t ≤ 25
f(t) therefore is 48(10) ≤ f(t) ≤ 48(25)
This gives: 480 ≤ f(t) ≤ 1200
So the amount of money earned f(t) for selling t subscriptions each week is all multiples of 48 between 480 and 1200, inclusive.
