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3 years ago

How do I find domain?

Mathematics

1 answer:

attashe74 [19]3 years ago

8 0

Find the domain by finding where the expression is defined.

Inveral Notation: [3,6) ∪ (6, ∞)

Set Builder Notation:{x|x ≥3,x ≠6}

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Which of the following could be points on the unit circle?

ipn [44]

Answer:

Points A and C are on the unit circle

Step-by-step explanation:

The unit circle is a circle of radius 1, that is, all the points that are inside the circle have the sum of the squares of its coordinates that are at most 1. Here, we have to test this for each option.

In options B and D, the coordinates 13/7 and 4/3, respectively, means that this sum will be larger than 1, and this points will not be on the unit circle. Now we text for options A and C.

A. ( 5/13, 12/13)

$\sqrt{(\frac{5}{13})^2+(\frac{12}{13})^2} = \sqrt{\frac{25}{169}}+\sqrt{\frac{144}{169}} = \sqrt{\frac{169}{169}} = \sqrt{1} = 1$

Since the sum of the squares is 1, the point is on the unit circle.

C. (1/3, 2/3)

$\sqrt{(\frac{1}{3})^2+(\frac{2}{3})^2} = \sqrt{\frac{1}{9}}+\sqrt{\frac{4}{9}} = \sqrt{\frac{5}{9}}$

Since the sum of the squares is less than 1, the point is on the unit circle.

5 0

3 years ago

Answer answer please please

lawyer [7]

Answer: Its A i think, if not its C

Step-by-step explanation:

8 0

2 years ago

Read 2 more answers

Solve for x. Round to the nearest tenth.

sp2606 [1]

Answer: 36.2

Step-by-step explanation:

30^2+15^2=1314

square root of 1314 is equal to 36.249

rounded to nearest tenth: 36.2

4 0

3 years ago

PLEASE HELP NEED HELPPPP BAD PLS

Bad White [126]

Answer:

Step-by-step explanation:

x=2

y=3

z=4

2+7=9

3+21=24

12+4=16

4+3=7

2*3=6

4 0

3 years ago

Ed bought 3 liters of water, 2,750 milliliters of sports drinks, and 2.25 liters of juice. For numbers 4a-4e, select True or Fal

Naily [24]

<span>4a) 1000 milliliters = 1 liter, thus 3 liters = 3 x 1000 = 3000 milliliters.
Thus Ed bought 3000 - 2750 = 250 more water than sports drink.
Therefore, Ed bought 250 milliliters more water than sports drink is True.

4b) Ed bought 3 - 2.25 = 0.75 more water than juice.
Therefore, Ed bought 1.25 liters more water than juice is False.

4c) Ed bought 2.25 liters = 2.25 x 1000 = 2250 milliliters of juice.
Thus, Ed bought 2750 - 2250 = 500 more sports drink than juice.
Therefore, Ed bought 50 milliliters more sports drink than juice is False.

4d) Ed bought 2750 milliliters = 2750 / 1000 = 2.75 liters of sports drink.
Ed bought 2.75 - 2.25 = 0.5 liters more sports drink than juice.
Ed bought 0.5 liter more of sports drink than juice is True.

4e) Ed bought 3000 milliliters of water and 2250 milliliters of juice.
Ed bought 3000 - 2250 = 750 more milliliters of water than juice.
Therefore, Ed bought 75 milliliters more water than juice is False.</span>

8 0

4 years ago