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nlexa [21]
3 years ago
14

Use the domain and range of each of the following relations to determine which is a function.

Mathematics
1 answer:
Taya2010 [7]3 years ago
7 0
B and C (I think they are the same)
You might be interested in
Simplify
Alecsey [184]

Answer:

8

Step-by-step explanation:

6  + 12 - 5 \times 2 + 2(8 \div 4 - 2)

6 + 12 - 10 + 2(2 - 2)

6 + 12 - 10 + 2 \times 0

6 + 12 - 10 + 0

= 8

6 0
3 years ago
The time period, T, of a simple pendulum is directly proportional to the square root of the length, d, of the pendulum.
bearhunter [10]

Answer: T= 3.54

Step-by-step explanation:

Step 1

Given that

The time period, T, s doirectly proportional  to the square root of the length, d, of the pendulum, we have that

T  ∝  \sqrt{d}

Introducing the constant of proportionality, we have that

T= K\sqrt{d}.

Step 2

When d=6, T=5, K =?

T= K\sqrt{d}.

5 = k\sqrt{6}

5=  k x 2.44949

k =5/2.44949

k =2.041

Therefore, when d = 3 , T= ?

T= K\sqrt{d}

T= 2.041 x \sqrt{3}

T= 3.53511≈ 3.54

4 0
3 years ago
Jenni wrote a rational number that is positive. Which of the following is not a possible number that she wrote?
notsponge [240]

Answer:

There is no answer.

0 is rational since it can be written as a fraction (0/5, 0/69)

1 is obviously rational. 7/8 is .875 and 5 1/4 is 5.25

3 0
3 years ago
The midpoint of line segment AB is (-2,1). If the coordinates of B are (0,2) what are the coordinates of A?
Whitepunk [10]

The required coordinate of A will be at (-4, 0)

When a point bisects a line, it cuts the line into two equal parts and the point on that line is known as its midpoint. The expression for calculating the midpoint of a line is expressed as;

M(X, Y)= [{ \frac{x_2+x_1}{2} , \frac{y_2+y_1}{2} ] where:

X =\frac{x_2+x_1}{2} \\Y=\frac{y_2+y_1}{2}

From the question, we are given the following coordinate points

X=-2\\x_1=0\\

Get x₂;

X =\frac{x_2+x_1}{2}\\-2 =\frac{x_2+0}{2}\\2 \times -2=x_2+0\\-4=x_2\\ Swap\\x_2=-4\\

Get y₂;

Y =\frac{y_2+y_1}{2}\\1 =\frac{y_2+2}{2}\\2 \times 1=y_2+2\\2=y_2+2\\y_2=2-2\\y_2=0

Hence the coordinate of A will be (-4, 0)

Learn more about the midpoint here: brainly.com/question/18315903

3 0
2 years ago
Can you answer this please (without a calculator)
mamaluj [8]

Answer:

a. 3.11

b. 7.5 or 7 1/2

c. 6 13/28

d. 133.17

Step-by-step explanation:

  • Mental math.
5 0
3 years ago
Read 2 more answers
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