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nasty-shy [4]
3 years ago
5

Please can you help me anything will help please

Mathematics
1 answer:
Bumek [7]3 years ago
4 0

Answer: 1, 2, 4, or 5

Step-by-step explanation:

The relationship in #3 is a function because all the x values are distinct, that is, none are repeated. (Y values don't matter.)

A function will not repeat any x values so if your goal is for the relationship in #4 to NOT be a function, repeat one of the x values. Any one will work.

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Anybody know the correct answer to this?
Digiron [165]

A=\{x|x=3n,\ n\in\{2,\ 3,\ 4\}\}=\{(3)(2),\ (3)(3),\ (3)(4)\}=\{6,\ 9,\ 12\}\\\\B=\{x|x=4m-3,\ m\in\{1,\ 2,\ 3\}\}\\=\{(4)(1)-3,\ (4)(2)-3,\ (4)(3)-3\}=\{1,\ 5,\ 9\}\\\\A\ \cap\ B=\{9\}

Answer: 9

4 0
3 years ago
Write an expression showing 8 less than the sum of x and n. Is the answer (n+x)-8
Alik [6]
It is x+n-8. I believe that if you put the parentheses it will mean you are multiplying x+n by -8.
7 0
3 years ago
Read 2 more answers
Type A coffee costs Bill 4.30
avanturin [10]
4.30A+5.70B=855.40
A+B=168

A=168-B
substitute

4.30(168-B)+5.70B=855.40
4.30*168-4.30B+5.70B=855.40
1.40B =855-4.30*168
1.40B=132.60
B=132.60/1.40= 94.7 pounds≈95 pouds

5 0
3 years ago
Didi invested a total of $16125 in two accounts paying 8.5% and 4% simple interest. If her total return at the end of 2 years wa
Arturiano [62]

Answer:

5000 ;

11125

Step-by-step explanation:

Given :

Total principal = 16125

Rates = 8.5% and 4%

Period, t = 2 years

Total interest = 1740

Let :

Principal amount invested at 8.5% = x

Principal amount invested at 4% = 16125 - x

Interest formula :

Interest = principal * rate * time

Hence, mathematically ;

(x * 8.5% * 2) + [(16125 - x) * 4% * 2] = 1740

(0.17x + 1290 - 0.08x ) = 1740

0.09x + 1290 = 1740

0.09x = 1740 - 1290

0.09x = 450

x = 450 / 0.09

x = 5000

Amount invested at 4% :

16125 - 5000 = 11125

8 0
3 years ago
Can someone please help me with these two questions I figured the others out but these two I just cannot
mylen [45]

1:16/48

2:6/7

I hope im right!

8 0
3 years ago
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