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VikaD [51]
3 years ago
13

PLEASE HELP!!! worth 15 POINTSSS

Mathematics
1 answer:
Readme [11.4K]3 years ago
3 0

Answer: i need the answer too please quys answer

Step-by-step explanation:

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Given the relation y = 7x2 + 3, if the input is 4, what is the output? (4 points)
aivan3 [116]
I'm assuming that you meant: 
y = 7x² + 3 

Remember! Inputs are always x values (unless stated otherwise). Meaning the problem says: 
x = 4 

y = 7(4)² + 3 

The square only applies to the 4. The 7 is not going to be squared! (To be exact it only applies to whatever the value of x is. 

4² = 4·4 = 16

Remember: 
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Follow PEMDAS from left to right (or in the case above from top to bottom).

7·16 + 3 = ? 

16·7 = 10·7 + 6·7 = 70 + 42 = 112
(All I did to multiply was break it up into parts. If it confuses you don't worry about it, and just multiply it out like normal or use a calculator if you are allowed to)

112 + 3 = ? 

Our output is: 
115!
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3 years ago
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Can you help me with the first two questions?
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Answer:

y=79/73x+644/73

theres the equation, enjoy <3

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After 9 new members joined the ski club, there were 38 members. How many members had been in the club previously?
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HELP ASAP
slega [8]

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No

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The sample size wasn't big enough. It could only be a trend in that grade.

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2 years ago
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