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Allisa [31]
3 years ago
6

Given the relation y = 7x2 + 3, if the input is 4, what is the output? (4 points)

Mathematics
2 answers:
finlep [7]3 years ago
7 0

Answer:115

Step-by-step explanation:

aivan3 [116]3 years ago
4 0
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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Cone A is divided into Cone B and Frustum C. B A 12cm C 20cm 20cm Express the volume of Frustum C as a fraction of the volume of
zaharov [31]

The volume of the frustum is volume of the whole cone(A) minus the smaller cone(B) which is would give the volume of frustum(C) = 256cm³

<h3>Calculation of a frustum</h3>

The volume of cone A V=πr²h/3

Where radius = 20cm

The volume of cone B = V=πr²h/3

Where radius = 12cm

Therefore volume of frustum =

V=π * 20² * h/3 - π * 12² *h/3

The variables will cancel out each other

V = 20² - 12²

V = 400- 144

V = 256cm³

Therefore, the volume of the frustum(C) = 256cm³

Learn more about cone here:

brainly.com/question/1082469

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7 0
2 years ago
What are the solutions to the equation x2 = 289?
artcher [175]
Because this is a second degree equation you will have 2 solutions.  When you take the square root of a number you have to account for both the positive and negative roots.  Since the square root of 289 is 17 then your solutions are +17 and -17.
3 0
3 years ago
Which is the slope of the line y= -3x + 2?​
zavuch27 [327]

Answer:

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Step-by-step explanation:

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3 years ago
(Algebra 1 )please help me I'll give brainliest
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7-3/-3-3

4/-6

this can be simplified to -2/3

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The answer is

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