What are the x-intercepts of the function f(x)=(x + 1)(x + 4)?
2 answers:
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a. The lightbulb uses the energy of 960 W or 9.60 kW.
Step-by-step explanation:
Step 1:
To determine the energy used by the appliances we need to understand the equation
To determine the energy used, we multiply the power of the appliance with the amount of time it has been used for.
Step 2:
The lightbulb has a power of 60 W and is used for a period of 16 hours.
The energy used by the lightbulb W = 0.96 kW.
The toaster oven has a power of 1,500 W and is used for 0.75 hours.
The energy used by the toaster oven W = 1.125 kW.
Answer:
Step-by-step explanation:
Given that a group of x people rent a jeep for 80 dollars.
Since they share the amount equally we have
each person share =
When one person in the group decides not to go, each remaining person has to pay an extra 4 dollars.
i.e. now the share borne by each in the group would be
This is 4 dollars more than the original
Hence equation would be
This equation would be used to determine how many people are in the group.