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2 years ago

Find the center and radius of the circle defined by the equation given below.

Mathematics

2 answers:

kow [346]2 years ago

6 0

Answer:

your question seem off but if its x² + 2x + y² +10y=15

Step-by-step explanation:

the answer will be

center = (-1,-5)

radius = square root 41

which will be C:center (-1,-5), radius square root 41

Aleks [24]2 years ago

4 0

It was b
Hope this is right?

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For a circle with a diameter of 6 meters, what is the measurement of a central angle (in degrees) subtended by an arc with a len

Sholpan [36]

Answer:

$\boxed{\boxed{\theta=150^{\circ}}}$

Step-by-step explanation:

We know that,

$\text{Arc length}=r\cdot \theta$

where,

r = radius,

θ = central angle in radian.

Given,

diameter = 6 m, so radius = 3 m.

$\text{Arc length}=\dfrac{5}{2}\pi$

Putting the values,

$\Rightarrow \dfrac{5}{2}\pi=3\theta$

$\Rightarrow \theta=\dfrac{5}{2\times 3}\pi$

$\Rightarrow \theta=\dfrac{5}{6}\pi=\dfrac{5}{6}\times 180^{\circ}=150^{\circ}$

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3 years ago

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A 9,000-gallon silo of wheat is being drained at a rate of 500 gallons per hour. A 7,000-gallon silo of wheat is being filled at

netineya [11]

Answer:

Step-by-step explanation:

9000-500h=0+500h

h= 9 hours

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2 years ago

David earns $8 per hour he works 40 hours each week how much does he earn in 6 weeks

dem82 [27]

Answer:

$1920

Step-by-step explanation:

First, find out how much he earns in one week-so $8 times 40 = 320. Then multiply 320 by 6 to get how much earns in 6 weeks which is $1920.

(hope this helps :P)

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2 years ago

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Which mathematical symbol would best fill in the blank to compare the two real numbers?

Alexandra [31]

Answer: The correct option is (A) < .

Step-by-step explanation: We are given to select the correct mathematical symbol that would best fill in the blank to compare the following two real numbers :

$\sqrt7~~~?~~~\dfrac{14}{5}.$

First , we need to find the values of both the real numbers in decimal form.

We have

$\sqrt7=2.64575...,\\\\\dfrac{14}{5}=2.8.$

Since, $2.64575$ so we get

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Option (A) is CORRECT.

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3 years ago

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Solving an Absolute Value Equation

Andre45 [30]

Answer:

Solution set = {-12, 12}

Step-by-step explanation:

Start by dividing both sides of the given equation by negative one, to get rid of the negative signs on both sides:

$-\,|-x|=-\,12\\|-x|=12$

Now we consider the two possible cases:

1) The expression inside the absolute value symbol is a positive number, then :

$|-x|=-x\\$

and replacing it in the equation, this becomes:

$|-x|=12\\-x=12\\x=-12$

which is our first answer.

2) The expression inside the absolute value symbol is a negative number, then :

$|-x|=x\\$

and replacing it in the equation, this becomes:

$|-x|=12\\x=12$

which is our second possible answer.

Then the set of solutions is: {-12, 12}

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