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Naddika [18.5K]

2 years ago

8

What is the diameter of the circle: x^2+y^2=16 ?

1 answer:

Sever21 [200]2 years ago

6 0

Answer:

<u>The diameter of this circle is equal to 8</u>

Step-by-step explanation:

The standard form of a circle is equal to x^2 + y^2 = r^2. As this equation shows x^2 + y^2 = 16, all we have to do is find the square root of 16, which is 4. This means that 4 is the radius of the circle and that 2 * 4 = 8, which is the diameter of the circle.

<u>Because of this, the diameter of this circle is equal to 8.</u>

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Choose a method you prefer to solve for a system of linear equations.<br> 2x + 4y = -4<br> 2x-y=6

Artyom0805 [142]

Answer:

Elimination

x = 2

y = -2

Step-by-step explanation:

Elimination

2x + 4y = -4

2x - y = 6

Subtract the second equation from the first

5y = -10

Divide both sides by 5

y = -2

---------------------

Substitute for y = -2 in the second equation

2x - -2 = 6

2x + 2 = 6

subtract 2 from both sides

2x = 4

Divide both sides by 2

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7 0

3 years ago

List the numbers in order from least to greatest.<br><br> −3, 9, −12, −7, 5, 1

musickatia [10]

Answer:

-12, -7, -3, 1, 5, 9

Step-by-step explanation:

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3 0

2 years ago

An urn contains 12 balls, of which 4 are white.

wel

Answer:

a) $\frac{1}{3}$

b) $\frac{4}{12}\,,\,\frac{4}{11}\,,\,\frac{4}{10}\,,...$

Step-by-step explanation:

Number of balls in the urn = 12

Number of white balls in the urn = 4

So, number of balls which are not white = 12 - 4 = 8

We know that probability = No. of outcomes/Total number of outcomes

Let $A_i\,,\,B_i\,,\,C_i$ denotes the event of getting white ball by A, B and C

a) each ball is replaced after being drawn.

Probability = Number of white balls/Total number of balls

Solution: $P(A_i)=P(B_i)=P(C_i)=\frac{4}{12}=\frac{1}{3}$

b)the balls that are withdrawn are not replaced.

Solution:

If A wins: $P(A_1)=\frac{4}{12}=\frac{1}{3}$

If A lost and B wins: $P\left ( B_1|A_1^{c} \right )=\frac{4}{11}$

If A and B lost and C wins: $P\left ( C_1|A_1^{c}\,B_1^{c} \right )=\frac{4}{10}$

and so on....

4 0

3 years ago

All insurance policies have a cash or loan value,<br> True<br> Folie

pishuonlain [190]

Answer:

false

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

Lol plsss help me :((

patriot [66]

Answer:

The choice two;

$- \sqrt{3}$

Step-by-step explanation:

$\sqrt{27} - 4 \sqrt{3} \\ 3 \sqrt{3} - 4 \sqrt{3} = - 1 \sqrt{3} = - \sqrt{3}$

6 0

2 years ago