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svetlana [45]
3 years ago
11

Amanda is selling cupcakes to raise money for charity. On the first day, she sells 12 cupcakes for a total of $64.68. On the sec

ond day, she sells 31 cupcakes at the same price per unit. What would be the best estimate of the amount of money she made on the second day?
A.
$175
B.
$165
C.
$160
D.
$170
Mathematics
2 answers:
vampirchik [111]3 years ago
8 0

Answer:I believe the answer is D

Step-by-step explanation:

stiv31 [10]3 years ago
3 0
The exact answer would be 167.09 so if you round the closest answer is D. $170
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O the circumcenter is equidistant to all three vertices

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3 years ago
20 points answer right uestion 1(Multiple Choice Worth 4 points)
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Answer:

two and one fifth

Step-by-step explanation:

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3 years ago
Will give brainliest plz help
Dominik [7]

Answer:

\frac{(x+4)^2}{25}+\frac{(y+3)^2}{9}=1

Step-by-step explanation:

Given:

Center of the ellipse is, (h,k)=(-4,-3)

Minor axis length is, 2b=6

A vertex of the ellipse is at (1, -3)

Now, distance between the center and the vertex is half of the length of the major axis.

Using distance formula for (-4, -3) and (1, -3), we get:

a=\sqrt{(1+4)^2+(-3+3)^2}=5

Therefore, the value of half of major axis is, a=5. Also,

2b=6\\b=\frac{6}{2}=3

Now, equation of an ellipse with center (h,k) is given as:

\frac{(x-h)^2}{a^2}+\frac{(y-k)^2}{b^2}=1

Plug in h=-4,k=-3,a=5,b=3 and determine the equation.

\frac{(x-(-4))^2}{5^2}+\frac{(y-(-3))^2}{3^2}=1\\\\\frac{(x+4)^2}{25}+\frac{(y+3)^2}{9}=1

Therefore, the equation of the ellipse is:

\frac{(x+4)^2}{25}+\frac{(y+3)^2}{9}=1

6 0
3 years ago
POSSIBLE POLYGONS Determine if it is possible for a regular polygon to have an interior angle with the given angle measure. Expl
grigory [225]

Answer:

yes for all 4.

Step-by-step explanation:

I am not sure I see the whole information.

but if the question truly is simply, whether a polygon can have an internal angle of 165 or 171 or 75 or 40 degrees, then the answer is a resounding yes to all 4.

the simplest polygon is a triangle.

the sum of all angles in a triangle is always 180 degrees.

so, any angle smaller than 180 degrees is a possible internal angle in a triangle (and therefore in polygons in general), because the difference to 180 can then be split into 2 angles (e.g. half/half).

so, if one angle is 165 degrees, then the other two angles have to have 15 degrees together (e.g. 10 and 5, or 7 and 8, or 2 and 13, or ...). they will be narrow angles, but they are still angles.

similar for 171 degrees. now the other two angles have to have only 9 degrees together. like 5 and 4.

for 75 degrees the other two angles must have 180-75 = 105 degrees together. like 20 and 85.

for 40 degrees the other two angles must have 180-40 = 140 degrees together. like 90 and 50.

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3 years ago
The length of a rectangle with length 12 yd and width yd is divided by 6.
Art [367]
It may be (12w)/6=0 then solve by multiplying 6 and dividing by twelve 
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3 years ago
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