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Aneli [31]
3 years ago
15

Hannah serves tables at a restaurant. The first table she served on a Monday paid her $70.15. The bill amount was $61.00, and th

e rest was Hannah's tip. What percentage of the bill was Hannah tipped?
PLEASE ANSWER SOON. I AM DOING THIS FOR SUMMER HOMEWORK. Am giving 30 points..
Mathematics
1 answer:
Aleonysh [2.5K]3 years ago
5 0
I think it should be around 13 percent
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I need an answer to this asap... please ....just number 3
Agata [3.3K]

Answer:

hence cos ( 2 A ) = cos 2 A − ( 1 − cos 2 A ) = 2 cos 2 A − 1


Step-by-step explanation:Well we know that for two angles A , B

it holds that cos ( A + B ) = cos A cos B − sin A ⋅ sin B hence for A = B you get cos ( 2 A ) = cos 2 A − sin 2 A But sin 2 A = 1 − cos 2 A


7 0
3 years ago
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Help, please the question and thank you
Fynjy0 [20]

Answer:

2

Step-by-step explanation:

If A = (2, 3) then a dilation of scale factor 2 means that the x and y coordinates are multiplied by 2, so x = 2 x 2 = 4  and y = 3 x 2 = 6, so A' = (4, 6)

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2 years ago
Write an equation in point-slope form of the line through point (4, -4) with slope, m=4
Mazyrski [523]

Answer:

y + 4 = 4(x-4)

Step-by-step explanation:

Use the point slope form of a line to write the equation by substituting m = 4 and the point (4,-4).

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4 0
4 years ago
Question 3 (Essay Worth 10 points)
Vika [28.1K]

Answer:

a) A= Lenght *Width

And replacing we got:

A= (3x+10) (4x+5)

And simplifying we got:

A = 12x^2 +15x +40x +50 = 12x^2 +55x +50

b) For this case since the coeficient for the higher degree is 2 then the polynomial is of second degree.

c) We need to remember that the closed property for polynomials tell to us that if we apply any operation between two polynomials we need to obtain and other polynomial. For this special case the property is the sum and after multiply we have another polynomial with a higher degree and then the closed property is satisfied.

Step-by-step explanation:

We know a  rectangle has sides measuring (4x + 5) units and (3x + 10) units

Part a

For this case we can find the area like this:

A= Lenght *Width

And replacing we got:

A= (3x+10) (4x+5)

And simplifying we got:

A = 12x^2 +15x +40x +50 = 12x^2 +55x +50

Part b

For this case since the coeficient for the higher degree is 2 then the polynomial is of second degree.

Part c

We need to remember that the closed property for polynomials tell to us that if we apply any operation between two polynomials we need to obtain and other polynomial. For this special case the property is the sum and after multiply we have another polynomial with a higher degree and then the closed property is satisfied.

5 0
3 years ago
Solve the equation -3=7+z/2
Yanka [14]
<span>-3=7+z/2
Subtract 7 from both sides
-10=z/2
Multipy 2 on both sides so that the only thing remaining on the right side is the variable z.
Final Answer: -20= z</span>
7 0
3 years ago
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