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2 years ago

HELP!!! Is this a function or not a function Why or why not

Mathematics

1 answer:

defon2 years ago

6 0

Answer:

Yes, it is a function

Step-by-step explanation:

anytime you want to test to see if the graph is a function, perform a vertical line test.

Basically if you drew a vertical line and the vertical line crosses the graph at only one point that means the graph is a function.

If it crosses on more than one point the graph is not a function.

You might be interested in

The answer is 3:5=N : 50 whats the solution?

andrew11 [14]

Answer:

N = 3 × 50 / 5

N = 150 / 5

N = 30 (Ans)

6 0

3 years ago

Please answer this. I would greatly appreciate it

asambeis [7]

Answer:

11.1 feet

Step-by-step explanation:

When you are given a right triangle with a given angle and side, you can use

trigonometric functions to calculate missing side lengths or inverse functions for angles based on this information.

These ratios can be remembered by the mnemonic:

SOH CAH TOA.

S O H → Sin (Sine) = Opposite / Hypotenuse

C A H → Cos (Cosine) = Adjacent / Hypotenuse

T O A → Tan (Tangent) = Opposite / Adjacent

______________________________________

The Opposite side is the side directly across from the angle, The adjacent (next to) side is the side other than the hypotenuse or opposite side, and the hypotenuse is the longest side.

Given that we are trying to find the adjacent side, we must use the cos (cosine) function because that can be multiplied by the hypotenuse to give us the adjacent side we are looking for.

Therefore, 36 [Hypotenuse Side] × cos(72°) = Adjacent Side.

Because: 36 = Hypotenuse Side.

cos(72)° = Adjacent Side / Hypotenuse Side.

36 × cos(72°) =

36 × 0.309016994374... = 11.12461179749... ≈ 11.1

3 0

3 years ago

Please help ill give whoever answers the best the brainliest answer :0

Greeley [361]

Expression (5x² - 2x + 7), ( $\frac{1}{5}x^3 -\frac{7}{2}x^2 -2$ ) and (y⁵ - √(5y²) + 7) are polynomials.

<h3>What is a polynomial ? </h3>

A polynomial is a type of algebraic expression where exponents of all variables are whole number.

1) 5x² - 2x + 7

Since there are no variables raised to negative or fraction exponents,

the expression is a polynomial.

2) $\frac{1}{5}x^3 -\frac{7}{2}x^2 -2$

Since there are no variables raised to negative or fraction exponents,

the expression is a polynomial.

3) y⁵ - √(5y²) + 7

This can be re-written as

$y^5-(\sqrt{5})y+7$

Since there are no variables raised to negative or fraction exponents,

the expression is a polynomial.

4) $\frac{y^3}{3} -\sqrt{y} +2$

This can be re-written as

$\frac{1}{3}y^2 -y^{1/2}+2$

Since variable y is raised to a fraction exponent,

the expression is not polynomial.

Therefore, expression (5x² - 2x + 7), ( $\frac{1}{5}x^3 -\frac{7}{2}x^2 -2$ ) and (y⁵ - √(5y²) + 7) are polynomials.

Learn more about polynomials here: brainly.com/question/17822016

#SPJ1

3 0

2 years ago

I need to know 11 10 and 19. 19 says “list three decimal numbers that, when rounded to the nearest tenth, it round to 3.2” (I wi

attashe74 [19]

Answer:

7.99- no

8.162- no

8.074- yes

8.13- yes

8.012- no

Step-by-step explanation:

7.99 to the nearest tenth = 8.0

8.162 to the nearest tenth= 8.2

8.074 to the nearest tenth=8.1

8.13 to the nearest tenth=8.1

8.012 to the nearest tenth=8.0

When rounding to the nearest tenth look at the place after it. If it is less than five then the number in the tenth will be rounded to 0. However if the following digit is 5 and above, 1 is added to the number you are rounding.

5 0

3 years ago

Can someone plz help me on this? (By help I mean give me the answer)

Ghella [55]

Answer:

Step-by-step explanation:

Step 1: Multiply Both sides by 4: result is 96 = 3r

Step 2: Divide both sides by 3: result is 32 = r

and there is your answer!

I hope this helped, and please mark this as brainliest!

8 0

3 years ago