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3 years ago

The ellipse 14x2+2x+y2=114x2+2x+y2=1 has its center at the point (b,c)(b,c) where

1 answer:

6 0

18x^2 + 2x + y^2 = 1
==> 18(x^2 + x/9) + y^2 = 1 
==> 18(x^2 + x/9 + 1/324) + y^2 = 1 + 1/18 
==> 18(x + 1/18)^2 + y^2 = 19/18 
==> (x + 1/18)^2/19 + (y - 0)^2/(19/18) = 1. 

By comparing this to the standard form of an ellipse, the center is at (-1/18, 0).

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I have another Brainliest

Lynna [10]

Answer:

5 times
$22.75

Step-by-step explanation:

1. Let n represent the number of times you can ride. To keep the cost within your budget, you must have ...

2.75n ≤ 15.00

n ≤ 5.45

You can ride 5 times. You don't have enough money to ride 6 times.

2. You can choose the correct answer using estimation of the costs. (You only need to work out the numbers in detail if an estimate doesn't get you close enough.)

3 all-day passes are a little more than $20 each, so cost a little more than $60.

2 rides on the Mountain Coaster are another $9, so your total cost will exceed $69. That means you will get less than $31 in change from $100. The only answer choice in that range is $22.75.

If you add up the costs of the passes and rides, you find they come to $77.25, so your change from $100 will be $22.75.

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3 years ago

pat has a 10-centimeter length of string she is going to use to measure a small square table. the length she measures is 5 strin

AlladinOne [14]

5 x 10 is how you get the answer

6 0

3 years ago

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Misha practices the guitar for 3 hours every day.

kakasveta [241]

Answer:

It is B. H = 3d

Step-by-step explanation:

I got it right :)

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3 years ago

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5. 14% of 160 000 is A. 14 000 B. 16 000 C. 22 400 D. 24 200

Gemiola [76]

The right answer is C)

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2 years ago

Find the surface are of the cylinder in terms of pi

Andrej [43]

Hello!

To find the surface area of a cylinder you use the equation

$SA = 2 \pi rh + 2 \pi r^{2}$

SA is surface area
r is radius
h is height

PUt in the values you know

$SA = 2 \pi (7)(18) + 2 \pi * 7^{2}$

Square the number

$SA = 2 \pi (7)(18) + 2 \pi * 49$

Multiply 7 and 18

$SA = 2 \pi * 126 + 2 \pi * 49$

Multiply 126 by 2

$SA = 252 \pi + 2 \pi * 49$

Multiply the 49 by 2

$SA = 252 \pi + 98 \pi$

Add

$SA = 350 \pi$

The answer is $A)350 \pi cm^{2}$

Hope this helps!

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3 years ago