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3 years ago

Which relation is a function?

Mathematics

2 answers:

Alja [10]3 years ago

3 0

Answer:

the answer is the first option.

miskamm [114]3 years ago

3 0

Answer:

Option A

Step-by-step explanation:

A) {(1, 3), (2, 6), (3, 9), (4, 12)} - Yes, all input-outputs are unique

B) {(1,4), (1, 3), (1, 2), (1, 1) - No, repeat inputs (1)

C) {(3, 4), (2, 4), (5, 1), (3,5)} - No, repeat inputs (3)

D) {(3, 4), (3, 3), (1, 2), (1,5)} - No, repeat inputs (1 and 3)

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, list the first five terms of each sequence, and identify them as arithmetic or geometric.

sveta [45]

Answer: -2, 2, 6, 10, 14

It is an Arithmetic sequence.

Step-by-step explanation:

Given Recursive formula : $A(n + 1) = A(n) + 4$ , for n ≥ 1 and A(1) = -2.

$A(2)=A(1 + 1) = A(1) + 4=-2+4=2$

$A(3)=A(2 + 1) = A(2) + 4=2+4=6$

$A(4)=A(3 + 1) = A(3) + 4=6+4=10$

$A(5)=A(4 + 1) = A(4) + 4=10+4=14$

Hence, the five terms of given sequence= -2, 2, 6, 10, 14

Since, there is common difference of 4 in two consecutive terms.

Therefore, it is an Arithmetic sequence.

5 0

3 years ago

ILL BRAINLIEST YOU PLEASE HELP ME

ExtremeBDS [4]

A D and F

All the others are also true for rectangles

4 0

3 years ago

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Find the value of x<br> 12<br> 5<br> X

steposvetlana [31]

Answer:

x = 13

Step-by-step explanation:

Note that the side length x is opposite of the right angle, which means that it is the hypotenuse, which will usually be denoted as c.

Set the equation:

a² + b² = c²

let:

a = 5

b = 12

c = x

Plug in the corresponding numbers (& x) to the corresponding variables:

(5)² + (12)² = (x)²

Simplify. First, solve for the power, and then add:

x² = (5²) + (12²)

x² = (5 * 5) + (12 * 12)

x² = 25 + 144

x² = 169

Next, root both sides of the equation:

√x² = √169

x = √169 = √(13 * 13) = 13

x = 13

Note the rules, and it should be easier:

30-60-90° = 1 , √3 , 2

45-45-90° = 1 , 1 , √2

Any other measurements use the equation: a² + b² = c²

5 0

3 years ago

NEED HELP ASAP!!!!Instructions: Using the following image, solve for the trigonometry ratios of

Anni [7]

Answer:

8/17

Step-by-step explanation:

x= $\sqrt{8^{2} +15^{2} } =17$

sin∠D = $\frac{8}{17}$

5 0

3 years ago

A swimming pool is 22 feet long and 18 feet wide. How many feet of fencing are needed to enclose the pool

alexira [117]

Answer:

80 feet

Step-by-step explanation:

length of pool = 22 , width of pool = 18

feet required for fencing the pool = 2 (l +b)

= 2 ( 22+18)

=2*40

=80feet

8 0

3 years ago

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