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Norma-Jean [14]
3 years ago
8

Someone’s help me please

Mathematics
1 answer:
valentinak56 [21]3 years ago
3 0

A Relation is said to be a Function if an element of Domain of the Function has one and only one image in the Co-domain of the Function.

⇒ A is not a Function, Because Element 4 has Three images

⇒ B is a Function, Because Each Element has a Unique Image

⇒ C is not a Function, Because Element 7 has Two images

⇒ D is a Function, Because Each Element has a Unique Image

⇒ E is a Function, Because Each Element has a Unique Image

So, The Relations which are Functions are : B - D - E

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3/2a - ab + 1 (if a = 5/6 and b = 3/10)
dedylja [7]
The answer is 2.

3/2a - ab + 1
3/2(5/6) - 5/6(3/10) + 1
5/4 - 1/4 + 1
4/4 + 1
1 + 1 = 2
7 0
1 year ago
I need help..... please answer ASAP if you know how to solve this
kvv77 [185]
For part A, The answer is that the car gets better gas mileage. We can see it from the graph that the number of gallons used is on the X axis, and the distance traveled using those number of gallons is on the Y axis. The easiest way to compare would be to look at the 1 gallon of gas. You can see that you can travel 25 miles on 1 gallon of gas. The truck on the other hand will get you 18 miles per gallon. Imagine putting 1 in for X, the Y value would be 18 if you did this. The graph just shows us a visual way of saying the same thing. To determine how much farther the car with a girl on 8 gallons of gas, you would just multiply 8 by 25 for the number of miles traveled by the car. You would multiply 8 by 18 to find the number of miles traveled for the truck. The answers are 200 miles for the car and 144 miles for the truck. 200-144=56 miles farther for the car.
6 0
3 years ago
QUESTION 1<br> Find the derivative of the function f(x)= /7x-8 using the limiting process.
Greeley [361]

Answer: Apply the Sum/Difference Rule

            d/dx(7x)-d/dx(8)

               d/dx(7x)=7

               d/dx(8)=0

                  7-0=7

                   

Step-by-step explanation: The answer is 7

4 0
3 years ago
You just obtained a credit card. You immediately purchase a digital camera for $160. Your credit limit is $4000. Let’s assume th
frutty [35]
Thank you for posting your question here at brainly. I hope the answer will help you. Feel free to ask more questions.
Below are the choices:

a.0.0142 
<span>b.1.0142 </span>
<span>c.14.2 </span>
<span>d.1.42
</span>
Every month your balance includes the original amount (100%) and the added the monthly interest (1.42%). So each month the balance will be 101.42% of the prior month's balance. Move the decimal point two places to the left to make that into a decimal. 

<span>Answer: </span>
<span>b. 1.0142</span>

6 0
3 years ago
The maximum weight for a truck in Oregon without a special permit is 40 tons what is the greatest number of pounds what is the g
Nimfa-mama [501]

Answer:

80,000lbs

Step-by-step explanation:

40 tons = 80000lbs

8 0
2 years ago
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