Mathematics High School

Which set of ordered pairs does not represent a function?
{(0,9),(-1,-2), (-5,2), (-3,0)}
{(0, -6),(-6,5), (4,5), (5,7)}
{(0,8),(-7, -1), (4,8), (1,5)}
{(4, -6), (9, – 7), (9,-4), (6,3)}

Answers

Answer 1

Answer:

{(4, -6), (9, – 7), (9,-4), (6,3)}

Step-by-step explanation:

It doesn't represnt a function because the 9 repeats twice

Related Questions

Which pair of expressions are equivalent?

3v + 5 - 9v + 2 and negative 6v + 6

Negative 6n + 3 - 2n + 2 and negative 8 n + 6

Negative 4n + 8 + 9n - 2 and 5n + 6

10n - 5 - 2n + 3 and 5n - 2

whoever answers this gets 50pts pls hurry!!!!!!!!

Answers

The answer is -4n + 8 + 9n - 2. 3v + 5 - 9v + 2 = -6v +7. -6n + 3 - 2n + 2 = -8n + 5. 10n - 5 - 2n + 3 = 8n - 2.

please help asap!!! i’ll mark you brainlest

Answers

It’s true because the squared in the biz exactly tell u what the answer is

Answer:

False

Step-by-step explanation:

First, simplify 6/12, which then equals 1/2

1/6 is not equal to 1/2

So, the answer is false

please help!!???????

Answers

Answer:

a)

table:

[tex]\begin{array}{ccccc}&2&3&4\\0&2&3&4\\1&3&4&5\\2&4&5&6\\3&5&6&7\end{array}[/tex]

b) Count the number of occurrances:

i: There are 3 fours in the table of 12 outcomes, so the probability is 3/12 = 1/4

ii: There are 9 outcomes less than six in the table of 12 outcomes, so the probability is 9/12 = 3/4

iii: There are 3 outcomes of 6 or more in the table of 12 outcomes, so the probability is 3/12 = 1/4

Can y’all help me for this test I don’t get it

Answers

Answer:

$2.25 per ganola Bar

Step-by-step explanation:

Cost of 4 Bars =  $ 9

Cost of 1 Bar = 9/4=2.25

Answer:

The constant of proportionally is 2.25$

Step-by-step explanation:

All you have to do is 9/4=2.25$

Hope this helps!!

A cuboid hos dimensions of 2 m x 90 cm x 140 cm.
It has a density of 0.8kg/m2
Find the mass of the cuboid.

Answers

2 * 0.9 * 1.4 = 2.52m^2
2.52 * 0.8 = 2.016kg
Therefore the mass is 2.016kg

Hi. I need help with these questions.
See image for question.
Answer 20 and 21

Answers

Answer:

20.  The vertex is (2/3, 14/3) | p = 3, q = -2/3 and r = 14/321.   20x² + 2x - 3 = 0

Step-by-step explanation:

20.

Giveny = 3x² - 4x + 6To findThe least value of the y and the corresponding value of xConstants p, q and r such that 3x² - 4x + 6 = p(x + q)² + rSolution

The given is the parabola with positive a coefficient, so it opens up and the minimum point its vertex.

The vertex has x = -b/2a and corresponding y- coordinate is found below:

x = - (- 4)/2*3 = 2/3, and y = 3(2/3)² - 4(2/3) + 6 = 4/3 - 8/3 + 6 = 14/3So the vertex is (2/3, 14/3)

The vertex form of the line has the equation:

y = a(x - h)² + k, where (h, k) is the vertex

Plugging in the values:

y = 3(x - 2/3)² + 14/3

Comparing with p(x + q)² + r, to find out that:

p = 3, q = -2/3 and r = 14/3

=====================================

21.

(i) α and β are the roots of: ax² + bx + c = 0

Show that:

α + β = -b/a and αβ = c/aSolution

Knowing the roots, put the equation as:

(x - α)(x - β) = 0x² - αx - βx + αβ = 0x² - (α+β)x + αβ = 0

Comparing this with the standard form:

ax² + bx + c = 0

Divide by a to make the constants of x² same:

x² + b/ax + c/a = 0

Now comparing the constants:

- (α+β) = b/a ⇒ α+β = - b/aαβ = c/a

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

(ii)

Givenα and β are the roots of: 3x² - x - 5 = 0To Find The equation with roots 1/2α and 1/2βSolution

The sum and the product of the roots:

α + β = -b/a = 1/3αβ = c/a = -5/3

The equation is:

(x - 1/2α)(x - 1/2β) = 0x² - (1/2α + 1/2β)x + 1/(2α)(2β) = 0x² - (α + β)/(2αβ)x + 1/4αβ = 0x² - (1/3)/(2(-5/3))x + 1/(4(-5/3)) = 0x² + 1/10x - 3/20 = 020x² + 2x - 3 = 0

You have 110 inches of yellow ribbon. The diameter of the old Oak tree is 38 inches. Do you have enough yellow ribbon to wrap around the old oak tree? Explain why. (20 points best answer gets 40)

Answers

Answer:

I believe that you will not have enough ribbon to wrap the entire tree.

Step-by-step explanation:

You will not have enough ribbon because the circumference of the tree is 119.38, more than the ribbon’s length. Therefore, it is impossible to wrap the entire tree in the ribbon.

#learnwithbrainly

When solving the problem 4 + 36 / 2 - 3^2, Kerry got the answer 13 and Katie got the
answer 11, Which student got the correct answer? What did the student who got the
incorrect answer do wrong?

Answers

Kerry got the correct answer (13). Katie forgot to use PEMDAS.

Which expression is equivalent to
(X^1/2y^-1/4z)^-2

Answers

Answer:

y^1/2/xz^2

Step-by-step explanation:

Yolanda is planning to put a pool in her backyard. The scaled model below gives the reduced measures for diameter and depth. The diameter of a pool is 18 centimeters and the depth is 4 centimeters. Not drawn to scale The yard space is large enough to have a pool that has a diameter of 27 feet. If Yolanda wants to keep the pool in proportion to the model, what will be the depth of the pool?

Answers

Answer: 6 feet

Step-by-step explanation:

You can use the ratio of the depth to the diameter of the pool in the scale to find out the depth in the yard given the diameter in the yard.

The ratio of the depth to the diameter is;

= 4/18

Given a diameter of 27 feet in the yard, the depth in the yard will be;

= 4/18 * 27

= 6 feet

Answer:

6ft

Step-by-step explanation:

Jake is comparing the price of 2 laundry service companies company a charges $20 per load in an additional $8 as service charges company B charges $24 per load and an additional $4 as survice charges

Answers

they’re both the same price
$20+$8=$28
$24+$4=$28

hope that helped

What is that y intercept? Can someone please explain to me how to do this and how you got the answer.

Answers

The y axis is the line going up and down like it says, and where the line is on the y axis is where it intercepts so it intercepts at -6 which is your answer

Write the quadratic equation in standard form: x^2+x=-4x^2+16​

Answers

Answer

-3[tex]x^{2}[/tex] +[tex]x[/tex]+16=0

Step-by-step explanation:

What is five million four thousand three hundred in standard form

Answers

Answer:

5004300

Step-by-step explanation:

5.004300 this is the answer because it just is

Need Help Fast plsss

Answers

Answer:

The answer should be B.) 2yw+y-1

Step-by-step explanation:

For this equation you:

multiply both sides by y Add -2 by both sides.Divide both sides by 2.

The Statue of Liberty is about 300 feet tall and about 30 feet wide. The town of Unionville is building a smaller model for their Fourth of July celebration. Unionville's statue will be 3 feet wide. How tall should Unionville's statue be?

Answers

It’s dividing by a factor of 10. So 30 divided by 10=3. You then do the same thing for the height. 300 divided by 10=30. The answer is 30.

I don’t know how to write this the way it’s supposed to be written but I hope U understand it Y^5/y^2


Answers

Answer:

is 14 sorry if i am wrong

Step-by-step explanation:

what does 3x^2+8x-10 equal?

Answers

Answer:

0.927

Step-by-step explanation:

just plug it in to a algebraric calculator!

The Answer would be:
0.927

A 16 oz. latte costs $3.75. If they are sold at the same rate, how much would a 24 oz. latte cost? Round to the nearest tenth.

Answers

Answer:5.62

Step-by-step explanation:

given an=-6n+5 find term 17 in the arthimetic sequence

Answers

Answer:

107

Step-by-step explanation:

A. 3 (x + 2) = 18

B. x + 2 = 6

1) How can we get Equation B from Equation A?

Choose 1 answer:

(Choice A) Add/subtract the same quantity to/from both sides

(Choice B) Add/subtract a quantity to/from only one side

(Choice C) Multiply/divide both sides by the same non-zero constant

(Choice D) Multiply/divide only one side by a non-zero constant

Answers

Answer:

c

Step-by-step explanation:

Find the solution to the following quadratic
8x^2 + 7x - 2 = 10x – 4 + x2

Answers

Answer x=3± i√ 47/14

Step-by-step explanation:

use math away its helpful

A ball is dropped from the top of the Washington Monument which is 555 feet high.
a) How long will it take for the ball to hit the ground?
b) Find the ball's speed at impact.

this is calculus terms, not physics.​

Answers

Answer:

Time taken t = 5.88 sec (Approx)

Final velocity v = 188.46 ft/s (Approx)

Step-by-step explanation:

Given:

Height h = 555 ft

Initial velocity u = 0 ft/s

Gravitational acceleration g = 32 ft/s²

Computation:

h = ut + 1/2(gt²)

555 = 1/2(30)(t²)

Time taken t = 5.88 sec (Approx)

Final velocity v = u + at

Final velocity v = (32)(5.88)

Final velocity v = 188.46 ft/s (Approx)

Can -8 8/15 be simplified? (Answer with yes or no) if it can what number would it be simplified?

Answers

Answer:

no

Step-by-step explanation:

it stays the same ok

Yes, -128/15
Decimal form - 8.5353...

Mixed number form - 8 8/15

I highly recommend u Math-way

An airplane 40,000 feet above the ground begins descending at a rate of 1,500 feet per minute. Write an equation to model the situtation.

Answers

Answer:

h(t) = 40,000 - 1,500t

Step-by-step explanation:

Let h(t) be the height of the airplane after t minutes.

h(t) = 40,000 - 1,500t

Athena is playing a game with bianca silver chip are worth 4 point and gold chip are worth 7 point she has 4 gold and 7 silver chip how many point the athena have

Answers

Answer:

56 points

Step-by-step explanation:

Given that:

Worth of sliver chip = 4 points

Worth of gold chip = 7 points

If Athena has 4 gold and 7 silver chips ;

Number of points will be ;

(Number of gold * worth of gold Chip) + (number of silver * worth of silver chip)

(4 * 7) + (7 * 4)

28 + 28 = 56 points

Hence, Athena will have 56 points.

Jose unlocks his cellphone by placing his right thumb on a square of 1 centimeter by 1 centimeter at the center of the screen. Upon recognizing his thumbprint, the square expands outward. The cellphone unlocks when the perimeter reaches 32 centimeters, taking a total of 2.5 seconds. What is the perimeter of the square after 1.5 seconds? 16.8 centimeters 19.2 centimeters 20.8 centimeters 29.2 centimeters

Answers

Answer:

Step-by-step explanation:

We can solve this question using proportion

Perimeter of the square/Time is takes to unlock

We are told in the question that:

The cellphone unlocks when the perimeter reaches 32 centimeters, taking a total of 2.5 seconds.

Hence, the perimeter of the square after 1.5 seconds is:.x = unknown

32/2.5 = x/1.5

Cross Multiply

2.5x = 32 × 1.5

x = 32 × 1.5/2.5

x = 19.2 centimeters

Dominic is looking to buy a cell phone and is comparing cellular plans. Company A charges a $175 start-up fee and

$75 per month for service. Company B does not have a start-up fee, but it charges $97 per month.

175+75m

Use the inequality < 97 to find how many months it will take before the average monthly cost of Company A

m

is less than Company B.

Enter your answer as a number, like this: 42

Answers

Answer:

4

Step-by-step explanation:

add up the cost of month one for A then keep adding 75 do the same for B

For less than 8 months the cost of company A remains less than company B.


Given that,
Company A charges a $175 start-up fee and $75 per month for service. Company B does not have a start-up fee, but it charges $97 per month.
To determine how many months it will take before the average monthly cost of Company A.

What is inequality?

Inequality can be defined as the relation of the equation containing the symbol of ( ≤, ≥, <, >) instead of the equal sign in an equation.

Here,
According to the question,
175 + 75m < 97m
175 < 97m - 75m
175 < 22m
8 < m

Thus, for less than 8 months the cost of company A remains less than company B.

Learn more about inequality here:

brainly.com/question/14098842

#SPJ2

In a city in Ohio, the sales tax rate is 5.75%. If the price of a book is $7, what is the total cost of the book including tax?

Answers

the total cost would be $2.49

Answer:

Step-by-step explanation:

what is y=3x+6 y=4x i need some help on it

Answers

Answer:

I don't fully understand, but if it is a true or false question it is false

Step-by-step explanation:

If y=4x      3x+6=9

4<9

So, in all it would be false.

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