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Genrish500 [490]
3 years ago
6

While making a sandcastle and moat on the beach, Glenda fills 3 pails with sand and 1 pail with water. The pails are of equal si

ze.
What fractional part of the pails contains sand?
Mathematics
1 answer:
Tanzania [10]3 years ago
7 0
Smnseismsjsisnznjzsjsnjsisnsnsjdd
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I am a polygon that connects with the bases of a polyhedron
baherus [9]
It is a pyramid. a polygon meets with a polyhedron and make a pyramid
4 0
3 years ago
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Which equation represents the hyperbola in general form?
valina [46]

ANSWER

D.

9 {y}^{2}  - 4 {x}^{2}- 36y + 16x - 16 = 0

EXPLANATION

The standard equation of the hyperbola is

\frac{ {(y - 2)}^{2} }{4}  -  \frac{ {(x - 2)}^{2} }{9}  = 1

We multiply through by 36 to obtain:

9 {(y - 2)}^{2}  - 4( {x - 2)}^{2}  = 36

We now expand to get,

9( {y}^{2}  - 4y + 4) - 4( {x}^{2}  - 4x + 4) = 36

Expand :

9 {y}^{2}  - 36y + 36  - 4 {x}^{2}  + 16x - 16 = 36

To get the general form, we equate everything to zero to get,

9 {y}^{2}  - 4 {x}^{2}- 36y + 16x - 16 = 0

The correct choice is D.

7 0
3 years ago
Something on sale for $725. The original price was $1299. To the nearest tenth of a percent, what was the rate of discount?
ElenaW [278]

Answer:

44.2%

Step-by-step explanation:

Rate of discount = (difference in prices / original price) x 100

Difference in price = $1299 - $725 = $574

Original price = $1299

($574 / $1299) x 100 = 44.187837%

the tenth is the first number after the decimal place. To convert to the nearest tenth, look at the number after the tenth (the hundredth). If the number is greater or equal to 5, add 1 to the tenth figure. If this is not the case, add zero

the hundredth figure is 8, which is greater than 5. 1 would be added to the tenth figure.

So it becomes 44.2%

4 0
3 years ago
What is the GCF of 36 and 90
ELEN [110]
The greatest common factor is 18
8 0
3 years ago
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2d + 7 = 9<br><br>please help me!<br><br><br><br> ​
jasenka [17]

Answer:

d=1

Step-by-step explanation:

8 0
3 years ago
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