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GalinKa [24]
3 years ago
5

Walmart sells birthday cakes for $18 after three days, they mark down the cakes by 45%. What is the discounted price

Mathematics
1 answer:
Misha Larkins [42]3 years ago
5 0

Answer:

$9.90

Step-by-step explanation:

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The equation (x-6)^2/16 + (y+7)^2/4 = 1 represents an ellipse. What are the vertices of the ellipse?
topjm [15]

Answer:

The correct option is C.

Step-by-step explanation:

The given equation is

\frac{(x-6)^2}{16}+\frac{(y+7)^2}{4}= 1

It can be rewritten as

\frac{(x-6)^2}{4^2}+\frac{(y+7)^2}{2^2}= 1         .....(1)

The standard form of an ellipse is

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

Where (h,k) is center of the ellipse.

If a>b, then the vertices of the ellipse are (h\pm a, k).

From (1) and (2) we get

h=6,k=-7,a=4,b=2

Since a>b, therefore the vertices of the ellipse are

(h+a, k)=(6+4,-7)\Rightarrow (10,-7)

(h-a, k)=(6-4,-7)\Rightarrow (2,-7)

The vertices of the given ellipse are (10, –7) and (2, –7). Therefore the correct option is C.

5 0
3 years ago
Read 2 more answers
A swimming pool is 12 metres long. how many metres would you swim if you swam 8 lengths. ​
kati45 [8]

Answer:

96m

Step-by-step explanation:

12m * 8 = 96m

unless lengths are counted as to one side and back then it would be double 96

4 0
3 years ago
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It's D, all real numbers greater than or equal to -3<br> i got %100 in the test
Artyom0805 [142]

Answer:

What's the question????

Step-by-step explanation:

6 0
3 years ago
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Solve x^2 - 3x - 10 = 0
Pachacha [2.7K]

Answer:

5 and -2

Step-by-step explanation:

{x}^{2}  - 3x - 10 = 0

{x}^{2}  - 5x + 2x - 10 = 0

x(x - 5) + 2(x - 5) = 0

(x - 5)(x + 2) = 0

x - 5 = 0

x = 5

or

x + 2 = 0

x =  - 2

6 0
3 years ago
The 16 oz jar of Peanut Butter costs $4.82. What is the cost per oz?
mr_godi [17]

Answer:

$.30 per ounce

Step-by-step explanation:

Take the price and divide by the number of ounces to get the cost per ounce

4.82/16

$.30125 per ounce

Rounding to the nearest cent

$.30 per ounce

7 0
3 years ago
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