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MAVERICK [17]
3 years ago
13

Will crown brainiest the first answer

Mathematics
1 answer:
Aliun [14]3 years ago
3 0

Answer:

2

Step-by-step explanation:

10a² : 5a² = 10 : 5 = 2

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A typical tip in a restaurant is​ 15% of the total bill. If the bill is ​$90​, what would the typical tip​ be?
Lana71 [14]

Answer:

$13.50 typical tip

Step-by-step explanation:

So to find the percentage

multiply 0.15*90

You’ll get 13.5

6 0
2 years ago
Read 2 more answers
Please help with the questions in the image
iren2701 [21]

Step-by-step explanation:

This seems to be calculus 1.

<u>Question a</u>

We have -2x^3 + 5x^2 + 9

m = slope = derivative

Find the derivative / slope of -2x^3 + 5x^2 + 9

We do this by differentiating the polynomials. There are a few methods to do this but I am going to use the power rule, which we multiply the constant by the exponent on the variable and subtract one from the exponent.

\frac{d}{dx}(-2x^3 + 5x^2 + 9)

-6x^2 + 10x

m = -6x^2 + 10x when x = a

<em>Now that we have this information, we can answer question b</em>

<u>Question b</u>

<u>The tangent line for Point (1, 12)</u>

First find the slope by using our derivative.

m = -6x^2 + 10x

m = -6(1)^2 + 10(1)

m = -6 + 10x

m = 4

Now that we have our slope, use point slope form to find our tangent line

y - 12 = 4(x - 1)

y(x) = 4x + 8


<u>Now lets do the same for the Point (2, 13)</u>

Find the slope at the point.

m = -6x^2 + 10x

m = -6(2)^2 + 10(2)

m = -24 + 10

m = -4

Now find the tangent line using point slope form of a line.

y(x) - 13 = -4(x - 2)

y(x) = -4x + 21


Now graph the lines, which I have done and you can see by viewing the image I have attached.


6 0
3 years ago
Please help again with the following 2 questions
yuradex [85]
Perimeter top one:
5+1+2+3+3+4= 18in

Perimeter bottom one:
6+1+4+3+2+4= 20in


3 0
3 years ago
Ok so brainly wont let me post the questions so I'm putting them in the comments but 100 points and brainlyest to the person who
Degger [83]

Answer:

here are the answers

Step-by-step explanation:

Part A)

scientific notation ------>  

standard notation ----->  

Part B)

scientific notation ------>  

standard notation ----->  

Part C)

scientific notation ------>  

standard notation ----->  

Part D)

scientific notation ------>  

standard notation ----->  

Part E)

scientific notation ------>  

standard notation ----->  

4 0
3 years ago
Send meh good memes pls xd
ZanzabumX [31]
Your beautiful ahahah
4 0
3 years ago
Read 2 more answers
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