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Alla [95]
2 years ago
12

How can you determine if a relation represents as an equation is a function?

Mathematics
1 answer:
elixir [45]2 years ago
7 0
It is relatively easy to determine whether an equation is a function by solving for y. When you are given an equation and a specific value for x, there should only be one corresponding y-value for that x-value. For example, y = x + 1 is a function because y will always be one greater than x.
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Simplify the expression: 2x( 4x + 5)<br> A 622 + 72<br> B 82 + 5<br> C 812 + 103<br> D O81 +10
nexus9112 [7]

Answer:

=8x2+10x

Step-by-step explanation:

2x(4x+5)

=(2x)(4x+5)

=(2x)(4x)+(2x)(5)

3 0
3 years ago
sarah invests £9600 at a simple interest rate of 8% per year. Work out the value of the investment after 3 years
andre [41]

Answer:

the value of the investment after 3 years=  £11,904

Step-by-step explanation:

sarah invests £9600 at a simple interest rate of 8% per year

number of years = 3

Formula for simple interest

I = P*n* r

P is the initial amount invested= 9600

r is the rate of interest = 8% = 0.08

n = number of years = 3

Now we find interest using formula

I = 9600 * 0.08 * 3= 2304

Interest amount is 2,304

Now we add the interest with the initial amount to get the value of investment after 3 years

9600 + 2304= 11904

6 0
3 years ago
What is the solution to this system of equations? Negative 3 x + 5 y = negative 2. 3 x + 7 y = 26. NEED FAST TAKING UNIT TEST 40
Citrus2011 [14]

3x + 5y = -2

3x + 7y = 26

Subtract first equation from second

2y = 28

y = 14

Plug it in

x = -24

6 0
3 years ago
Read 2 more answers
HELP PLEASE FIND X AND SHOW YOUR WORK
PtichkaEL [24]

Answer:

34

Step-by-step explanation:

Straight lines are 180 degrees, so the angle inside of the triangle next to the 127, is 53 degrees. (180-127= 53)

So to find "x", we need to figure out what the full number is.

59+53 = 112.

180-112= 68.

Now that we have the degree of the full angle, we can make an equation to find x.

x*2 = 68

(Divide 2 from both sides to isolate the variable)

x = 34  

I hope this helped!

7 0
2 years ago
A customer member owe 16.50 and pays $20 in cash the change due is 3.50 provide the amount owe using the smallest number of bill
Daniel [21]

Answer:

4

Step-by-step explanation:

2 plus 6 is 8, 8 divided by 2 is 4

7 0
2 years ago
Read 2 more answers
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