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3 years ago

What is the equation of the circle in standard form see attachment

Mathematics

2 answers:

Elodia [21]3 years ago

7 0

Center (-1,1), radius 5 so

$(x - -1)^2 + (y - 1)^2 = 5^2$

$(x+1)^2 + (y-1)^2 = 25$

Third choice

WINSTONCH [101]3 years ago

6 0

Answer:

○ (x + 1)² + (y - 1)² = 25

Step-by-step explanation:

According to one of the Circle Equations, (X - H)² + (Y - K)² = R², all the negative symbols give the OPPOSITE terms of what they really are, so be EXTREMELY careful inserting the center into the formula with their CORRECT signs. Then in the end, square the radius.

The radius is five, so squaring this will give you twenty-five.

I am joyous to assist you anytime.

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A car travels 20 mph slower in a bad rain storm than in sunny weather. the car travels the same distance in 2 hrs in sunny weath

ycow [4]

You can create two equations.

"A car travels 20 mph slower in a bad rain storm than in sunny weather."

$\sf x-20=y$

Where 'x' represents speed in sunny weather and 'y' represents speed in rainy weather.

"The car travels the same distance in 2 hrs in sunny weather as it does in 3 hrs in rainy weather."

$\sf 2x=3y$

Where 'x' represents speed in sunny weather and 'y' represents speed in rainy weather.

We want to find the speed of the car in sunny weather, or 'x'. Plug in the value for 'y' in the first equation into the second equation.

$\sf \boxed{\sf x-20}=y$
$\sf 2x=3y\rightarrow2x=3(x-20)$

Distribute:

$\sf 2x=3x-60$

Subtract 3x to both sides:

$\sf -x=-60$

Divide -1 to both sides:

$\sf x=60$

So the car goes 60 mph in sunny weather.

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2 years ago

¿Cuál es la suma de 4.225 x 10y 36.55 expresada en notación decimal?

umka2103 [35]

Use algo como cymath. It’s a calculator and it works very well

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3 years ago

will the opposite of a number always,sometimes,or never be greater than the number itself??????? can someone do an example and a

weeeeeb [17]

When the number is positive, its opposite is less than the number.

9 ==> -9 . . . . . . less
72 ==> -72 . . . . less
324 ==> -324 . . less

When the number is negative, its opposite is greater than the number.

-8 ==> 8 . . . . . . greater
-3/4 ==> 3/4 . . . greater
-429 ==> 429 . . greater .

We've seen that the opposite can be less, and it can also be greater.
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2 years ago

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lara31 [8.8K]

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3 years ago

(help!) What is the relationship between the ratios of the Perimeter and the ratios of the Area?

Papessa [141]

Answer:

4.5 I think

Step-by-step explanation:

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2 years ago