Is y = x^2 a function. Explain

Answers

Answer 1

Answer:

no it not

Step-by-step explanation:

X = y2 would be a sideways parabola and therefore not a function. ... If a vertical line passes thru two points on the graph of a relation, it is NOT a function


Related Questions

evaluate sinB given that sinA=-1, a=10 and b=4

Answers

Answer:

-2.5

Step-by-step explanation:

Using the sine rule, a/sinA = b/sinB.

So, sinB = bsinA/a

substituting sinA = -1, a = 10 and b = 4, we have

sinB = 10 × (-1)/4

= -10/4

= -5/2

= -2.5

Simplify the following expression
-5(6 - 2i) +(3+ i)(2-3i)

Answers

The answer will be -21+3i
Hope that helps have a nice day <3

-3 - 4x ≤ 21
Please help!! The first time I got this answer I got x≤ 5.25 but i know it's not right.
I know there are smarties out there. Please help!!

Answers

Answer:

lol

Step-by-step explanation:

Yeah i have no clue but good luck

[tex]-3-4x\leq 21 \\~\\-3-4x+3\leq 21+3 \\~\\-4x \leq 24[/tex]

When you multiply both sides by a negative number, you have to flip the inequality.

[tex]-4x\cdot \left(-\dfrac{1}{4}\right) \geq24\cdot \left(-\dfrac{1}{4}\right) \\~\\x \geq-6[/tex]

You could also solve by doing this:

[tex]-4x \leq 24 \\~\\-4x +(4x-24) \leq 24 +(4x-24) \\~\\-24 \leq 4x \\~\\-6\leq x[/tex]

If -6 is less than or equal to x, then x is greather than or equal to  -6.

2. Rotate the following 180 degrees about point D.

Answers

Just redraw it at a 180 degrees , it doesn’t say whether it goes clockwise or counterclockwise so I can’t give the exact answer

Renee calculated 3/6 plus 2/4 and said the answer equaled 5/10. Amanda solved the same problem and said the answer equaled one whole. Whose answer is more reasonable?

Answers

Answer:

Amanda's

Step-by-step explanation:

Given :

3/6 + 2/4

The L. C. M of 6 and 4 = 12

(6 + 6) / 12

12 / 12

= 1

Renne's result = 5/10

Amanda's result = 1 whole

Hence, Amanda's result makes more sense.

Marilyn goes to the mall to shop for school clothes. she buys a pair of jeans for $30 and wants to buy a few graphic t-shirts that cost $15 each. if she bought $75 to the mall, what is the maximum number of shirts she can buy?
write the answer in an inequality.​

Answers

Answer:

oh thats easy

Step-by-step explanation:

it really w

asy

Anthony patella earns 300 a week working part time at his uncles restaurant how much does he make in a year

Answers

500 is the answer checked and for sure write your welcome

Answer:

15,600 is how much he will make in a year.

Step-by-step explanation:

There are approximately 52 weeks in a year therefore, 300*52= 15,600

What is the x-intercept of the line 5x-2y=10 ?

a. 5
b. 0
c. 2
d. -10

i’m thinking it’s C but i’m not sure?

Answers

I’m pretty sure c is the right answer

you cut a board into pieces that are 1/3 ft long. If the board is 5 ft how many pieces will you have

Answers

Answer:

b

Step-by-step explanation:

Answer:

15

Step-by-step explanation:

One foot would have 3 1/3 pieces (because 3 * 1/3 = 1) so that means 5 would have 15 pieces (because 3 * 5 = 15)

22 = 5(y – 8) please help me

Answers

Answer:

y=12.4

Step-by-step explanation:

22/5 is 4.4

so the numbers in the bracket must equal to 4.4

so y is 12.4

Answer:

62/5 or 12 2/5

Step-by-step explanation:

22 = 5(y-8)

22 = 5y - 40

5y−40=22

Add 40 to both sides

5y−40+40=22+40

5y = 22+40

5y=62

Isolate the variable.

5y/5 = 62/5

Josh has 36 postcards from national parks he visited. He wants to put them in a
binder. Each page in the binder holds 4 postcards. How many pages does he need for
the binder? Explain.

Answers

Answer:

he needs nine pages

Step-by-step explanation:

36 divided by 4 makes 9

what are the factor of 44 and 66​

Answers

Answer:

Factors for 44: 1, 2, 4, 11, 22, and 44. Factors for 66: 1, 2, 3, 6, 11, 22, 33, and 66.

Answer:

For 44 and 66 those factors look like this: Factors for 44: 1, 2, 4, 11, 22, and 44. Factors for 66: 1, 2, 3, 6, 11, 22, 33, and 6

Solve for x in the figure below
3x-1
21
167°​

Answers

Answer:

49

Step-by-step explanation:

167 = 21 + (3x - 1)

167 = 20 + 3x

3x = 147

x = 49

Answer is 49

Step-by-step explanation:

167=(3x-1)+21(Exterior angle is equal to two opposite interior angle)

or,167=3x-1+21

or,167=3x+20

or,167-20=3x

or,147=3x

or,x=147/3

or,x=49

Base and height of a parallelogram 12 cm and 8 cm respectively. find its area


please guys give me correct answer​

Answers

Answer:

96 cm²

Step-by-step explanation:

Area of a parallelogram A = bh where b = base = 12 cm and h = height = 8 cm.

So, A = 12 cm × 8 cm

A = 96 cm²

So, the area of the parallelogram with base 12 cm and height 8 cm is 96 cm².

can someone help me​

Answers

Step-by-step explanation:

Electric potential energy UE=Ke.RQqso UE∝R1

so to increase Ue by 16 times you gotta reduce R(distence) by 16 times

A ranch has an area of 1120 acres. How many square miles is 1120 acres? Show all your work. (1 square mile = 640 acres)

Answers

Answer:

1.75 Sq. Miles

Step-by-step explanation:

1120/640 = 1.75

24

50

75

YO I Think ima bout to fall this class
please help meh

( AnSWeR ThE 2 QuEsTioNs)

----Directions are provided in the picture-----

Answers

                                                Question 1)

Answer:

The slope between  (-5, -20) and (9, 9) is:

[tex]m=\frac{29}{14}[/tex]

Step-by-step Explanation

Given the points

(-5, -20)(9, 9)

Finding the slope between (-5, -20) and (9, 9)

[tex]\mathrm{Slope}=\frac{y_2-y_1}{x_2-x_1}[/tex]

[tex]\left(x_1,\:y_1\right)=\left(-5,\:-20\right),\:\left(x_2,\:y_2\right)=\left(9,\:9\right)[/tex]

[tex]m=\frac{9-\left(-20\right)}{9-\left(-5\right)}[/tex]

Refine

[tex]m=\frac{29}{14}[/tex]

Therefore, the slope between  (-5, -20) and (9, 9) is:

[tex]m=\frac{29}{14}[/tex]

                                        Question 2

Answer:

the slope between (18, -5) and (18, 20) is undefined.

Step-by-step Explanation

Given the points

(18, -5)(18, 20)

As the x-values of the points are the same. It indicates that the given line is vertical.

Finding the slope between (18, -5) and (18, 20)

Slope = m =  [y₂ - y₁] /  [x₂ - x₁]

               =  [20 - (-5)] / [18 - 18]

               = [20+5] / [0]  

               = 25/0

               = ∞ or undefined

Thus, the slope between (18, -5) and (18, 20) is undefined. It indicates that the line is vertical.

Hence, the slope between (18, -5) and (18, 20) is undefined.

2. Carl bought some stickers on Saturday. He used 9 of them that same day.
When he went back to the store on Sunday, he bought 3 more stickers.
Write an expression that represents the number of stickers Carl has.

PLEASE HELP ME ASAP​

Answers

Let N be the number of stickers Carl have and K be the number of stickers he bought at Saturday.

[tex]N = K-9 +3[/tex]

[tex]N = K-6[/tex]

What is the answer to this ?

Answers

Answer:

The answer is option 1.

Step-by-step explanation:

In order to solve x, you have to make x the subject, by multiplying each sides by 5, to get rid of 5 on the left side.

[tex] \frac{x}{5} = 8[/tex]

[tex] \frac{x}{5} \times 5 = 8 \times 5[/tex]

[tex]x = 40[/tex]

The class went from 28 students last week to 32 students this week.
What percent did the class grow by? (amount of growth is what percent of
the original class)

Answers

Answer:

The class grew by 14.5%

Step-by-step explanation:

When you add 14.5% of 28 to the 28 you should get about 32. :)

Helppppp pleaseeee :))

Answers

Answer:

d.11-x<-18

put the value of x in inequality and identify.

Mr. Cruz fills a 3-gallon water cooler for a family picnic. He brings plastic cups that each hold 12 fluid ounces of water. How many plastic cups can Mr. Cruz completely fill with the water from the cooler?

Answers

One gallon is equivalent to 128 fluid ounces

3 gallons is equivalent to 3*128 fluid ounces

= 384 fluid ounces

One plastic cup can hold 12 guide ounces

So cups needed will be 384/12

32 cups

Mr. Cruz can completely fill 32 plastic cups with the water from the cooler.

What is the division operation?

In mathematics, divides left-hand operands into right-hand operands in the division operation.

The 3-gallon water cooler contains 3 x 128 = 384 fluid ounces of water.

We can divide the total amount of water in the cooler by the amount of water each plastic cup can hold to find out how many cups can be completely filled:

384 fluid ounces / 12 fluid ounces/cup = 32 cups

Therefore, he can completely fill 32 plastic cups with the water from the cooler.

To learn more about the division operation click here :

brainly.com/question/25870256

#SPJ2

HEELLPPPPPPPPPPPP.. I NEED THE ANSWER

Answers

C I thinkkkkkkkkkkk!!!!!!!!!

Solve for the hypotenuse in the right triangle shown

Answers

Answer:

C.) Square root of 34

Step-by-step explanation:

a^2 + b^2 = c^2

3^2 + 5^2 = c^2

9 + 25 = c^2

c^2 = 25 + 9

c^2 = 34

√c^2 = √34

did u figure this out yet or not i can help

A straight-line graph

• has gradient 4

• crosses the y axis at (0, −3).

Write down the equation of the graph.

Answers

Given:

A straight-line graph  has gradient 4  and crosses the y axis at (0, −3).

To find:

The equation of the given graph.

Solution:

The slope intercept form of a line is:

[tex]y=mx+b[/tex]            ...(i)

Where, m is the slope of the line and b is the y-intercept.

A straight-line graph  has gradient 4. It means the slope of the line is 4.

[tex]m=4[/tex]

Line crosses the y axis at (0, −3). So, y-intercept is -3.

[tex]b=-3[/tex]

Putting m=4 and b=-3 in (i), we get

[tex]y=(4)x+(-3)[/tex]

[tex]y=4x-3[/tex]

Therefore, the equation of the given line graph is [tex]y=4x-3[/tex].

can someone prove this for me please​

Answers

We will take both sides as LHS & RHS, and solve for LHS to be equal to RHS.

what is it called when two lines intersect

Answers

Answer:

The point where the lines intersect is called the point of intersection. If the angles produced are all right angles, the lines are called perpendicular lines. If two lines never intersect, they are called parallel lines.

If m∠9 = 130°, what is m∠4?

Answers

Answer:

m<9=130 it also equal to 180 so 130-180 makes m<4= 50

Evaluate this expression using the given values for x and y.
1 point
4x² + 13 – 2y when x = 3 and y = 8

Answers

Answer:

The answer is 33.

Step-by-step explanation:

4x^2 + 13 - 2y, x=3 y=8

In order to evaluate this, you just need to plug the x and y in the expression:

= 4(3)^2 + 13 - 2(8)

= 4(9) + 13 - 16

= 36 + 13 - 16

= 33

PLEASE HELPP ME!!!!
i know this isnt really a school question but i really need help... So recently i got a husky and at her old house we are thinking she was malnourished. Now over at our house she does not want to eat anything except for a few select types of table food. We are not sure what to do and i was wondering does anybody maybe know what is wrong, or what to do to get her to eat again?

Answers

Answer:

Step-by-step explanation:warm the food up.

offer strong-smelling foods.

try different brands of pet food.

try hand feeding.

check your husky nose is clean (the smell of food may help stimulate their appetite)

Other Questions
how to find gram molecular mass A box is 1 m high, 2.5 m long, and 1.5 m wide, its volume is 5 m.true or false need an answer for this Help meeeeeee please choose ALL of the correct ones Please help thank you so much I will mark u the brainiest and give out 50 points!! All decimals can also be represented on a Which of the following changes led to more Americans watching professional sports in the early 1900s How many centimeters are there in 1/5 of an inch Please dont guess !!Explain your answer will give braisnlt What is the distance between (-5, 3) and (7, 3)? (I WILL GIVE BRAINLIEST) Which steps will delete an appointment?left-clicking on the appointment and hitting delete on the keyboarddouble-clicking on the appointment and hitting delete on the keyboardright-clicking the Calendar folder and hitting delete on the keyboardclicking the Calendar folder and hitting delete on the keyboard ANSWER AND GET BRAINLIEST a change in matter in which the density of the inatterstays the same 0 Type the Correct Irregular Preterite Conjugation Given in the Parenthesis. Usted_________ de compras el ao pasado. (ir) Which of the following is most likely the next step in the series? PLEASE HELP ILL GIVE U BRAINLYIST IF U GET IT RIGHT Robert made a design on his wall with the similar pentagon tiles shown.L9 cm9 cmRKMQs10 cm15 cm10 cm15 cmU10 cmnot drawn to scaleP15 cmNWhat is the length of side RS?A. 3 cmB. 4 cmC. 5 cmD. 6 cm What was an effect of the US government selling war bonds?A. Citizens received government loans to support them during the war.B. Citizens saw immediate returns on their investments.C. The public protested the mandatory war bonds.D. The government raised hundreds of billions of dollars. To multiply 10 with 2/5you should_________. how do you find deviation and standard deviation