7. Which set of ordered pairs represents a function?
A) {(-2,1),(-1,0). (1,-1), (2,-2), (3,-3)}

B) {(-2,57, (-2,5), (-2,7),(-2,9), (-2,11)}

C) {(1,5), 7,2), (9,1), (9,7), (2,7)}

D) {(-4,0), (-2,1),(0,2), (-2,4), (-4,6)}

Answers

Answer 1

Answer:

a

Step-by-step explanation:

to be a function, every x has to have exactly one y, so there can't be the same number x twice wirh different y's


Related Questions

How do the values of the 4s in 64.723 and 9.048 compare? Choose the best answer below to correctly complete the statement. The value of the 4 in 64.723 is 10 100 1000 times the value of the 4 in 9.048.

Answers

Answer:

100

Step-by-step explanation:

4 in 64.723 is a unit value. So it has a value of 1

4 in 64.723 has a value of 0.01

so the value of 4 in 64.723 is 100 times the value of the 4 in 9.048.

INTERESTING EXAMPLE #1: SIMPLE INTEREST
ha Audio Ineho's;
Kyra has been babysitting since 6th grade. She has
saved $1,000 and wants to open an account at the
bank so that she will earn interest on her savings.
Simple Bank pays simple interest at a rate of 10%.
QUESTION: How much money will Kyra have IN
TOTAL after one year, assuming she neither deposits
nor withdraws any money?

Answers

Answer:

3d4cf4tg6g6g5yfrr3

5

Step-by-step explanation:

rc4g5g6g5f4d4f

Answer:

She will have $2,200

Step-by-step explanation:

Im assuming shes getting paid interest every month.

10% of 1,000 is 100

So, when you mulitiply 100 times 12

You get 1,200

You add that to the original amount of savings

And she ends up with $2,200

sin (0)= cos (28)
what is the value of 0?

Answers

Answer:

[tex]O=62[/tex]

Step-by-step explanation:

plz mark me brainliest. ;)

In which of the following expressions is 5 a coefficient?
A.5y + 4z
B.7x 2+ 4x 5+ 2
C.19x + 4y + 5
D.x + 3 + 2 – x

Answers

Answer:

A. 5y + 4z

Step-by-step explanation:

the coefficient is the number placed after the variable

so 5y in A part. because 5 is written with Y which is a variable

Can u help me with Circles and Composite Figures?​

Answers

Answer:

What type 9f composite figure?

Step-by-step explanation:

Pls send an attachment

Answer:

please can you bring the images of the circles and Composite Figures you want us to help you out.

Step-by-step explanation:

There is no attachment so please how can your question be answered.

the hypotenuse of a right triangle is 15in and leg one is 12in how long is leg two

Answers

Answer:

9 inches

Step-by-step explanation:

A^2 + B^2 = C^2 !!!! This is very important to remember!!!

15^2 - 12^2 = 81^2

Get rid of ^2 by taking square root

Square root of 81 is 9!

Someone help me (10 points each person)

Answers

Answer:

x = 34 degrees

Step-by-step explanation:

there are many rules when it comes to parallel lines but this is called corresponding angles which means if we know these two are parallel lines then x and 34 will be the same therefore x will equal 34

Answer:

34

Step-by-step explanation:

The Richter scale magnitude reading m is given by m=log10x , where x represents the amplitude of the seismic wave causing ground motion. Determine the reading of an earthquake that is 10 times less intense than an earthquake that measures 4.5 on the Richter scale.

Answers

Answer: The reading would be 5.5 on the Richter scale.

Step-by-step explanation:

The intensity of an earthquake that measures 4.5 on the Ritcher scale can be found by solving:

4.5 = log₁₀(x)

for x.

remember that:

logₐ(x) = ln(x)/ln(a)

Then we can rewrite our equation as:

4.5 = ln(x)/ln(10)

4.5*ln(10) = ln(x)

we also know that:

ln(exp(x)) = exp(ln(x)) = x

Then we can apply the exponential equation to both sides to get:

exp( 4.5*ln(10)) = exp( ln(x) ) = x

exp( 4.5*ln(10)) = x

x = 31,622.8

Now, if we have an intensity 10 times larger than this, we will have:

x = 10*31,622.8 = 316,228

The reading on the Richter scale will be:

m = Log₁₀(316,228) = 5.5

Y=? Need help ASAP very much appreciated

Answers

Answer:

8

Step-by-step explanation:

I'm guessing the answer is 8 because when y is -8, x is 4. So, my thought in mind is when x is negative, y is positive. It also says, "If the value of "y" varies directly with "x". So, this means the answer is 8. You're very much welcome! Also, I'm sorry if this is incorrect. I tried my best with this question but I'm pretty sure the answer is 8! Have a great day sunshine!! :)

Answer: y = 8

Step-by-step explanation:

11(n + 3)

F. 14n
G. n + 33
H. 33n
I. 11n + 33
(Please help with this)

Answers

Answer:

corect answers is I. 11n + 33

the half-life of chromium-51 is 38 days. If the sample contained 510 grams. How much would remain after 1 year?​

Answers

Answer:

About 0.6548 grams will be remaining.  

Step-by-step explanation:

We can write an exponential function to model the situation. The standard exponential function is:

[tex]f(t)=a(r)^t[/tex]

The original sample contained 510 grams. So, a = 510.

Each half-life, the amount decreases by half. So, r = 1/2.

For t, since one half-life occurs every 38 days, we can substitute t/38 for t, where t is the time in days.

Therefore, our function is:

[tex]\displaystyle f(t)=510\Big(\frac{1}{2}\Big)^{t/38}[/tex]

One year has 365 days.

Therefore, the amount remaining after one year will be:

[tex]\displaystyle f(365)=510\Big(\frac{1}{2}\Big)^{365/38}\approx0.6548[/tex]

About 0.6548 grams will be remaining.  

Alternatively, we can use the standard exponential growth/decay function modeled by:

[tex]f(t)=Ce^{kt}[/tex]

The starting sample is 510. So, C = 510.

After one half-life (38 days), the remaining amount will be 255. Therefore:

[tex]255=510e^{38k}[/tex]

Solving for k:

[tex]\displaystyle \frac{1}{2}=e^{38k}\Rightarrow k=\frac{1}{38}\ln\Big(\frac{1}{2}\Big)[/tex]

Thus, our function is:

[tex]f(t)=510e^{t\ln(.5)/38}[/tex]

Then after one year or 365 days, the amount remaining will be about:

[tex]f(365)=510e^{365\ln(.5)/38}\approx 0.6548[/tex]

HELP PLEASE! This is due tomorrow and I’m confused

Answers

upload a more detailed picture please

how do I get the area of a circle?

Answers

Answer:

The area of a circle is pi times the radius squared (A = π r²).

Step-by-step explanation:

Hope this helps!! If it does can you please mark me brainliest? It would help a lot, its fine if you don't want to!

You have to see how many faces it has

Danny has a rectangular rose garden that measures 8m by 12.5m. One bag of fertilizer can cover 16m2. How many bags will he need to cover the entire garden?

Answers

Answer:

do your work and ask a teacher or parent for help to solve it and stop asking random strangers for the answer and learn how to do it. <3

Step-by-step explanation:

URGENT please solve number 12 it’s due at 11:59 tonight thanks

Answers

11 with B
12 with C
13 with A


Question 4
A truck is loaded with packages. The truck's trailer is 12 feet high by 52
5 feet
15 feet
12 feet
What is the volume of the trailer?
А
97 cubic feet
B
191 cubic feet
С
252 cubic feet

Answers

Answer:

C. 252 CUBIC FEET IS THE VOLUME OF THE TRAILER

If you don’t know the answer pls don’t reply thank you

Answers

Answer:

Is B

Step-by-step explanation:

It's B because you use cups with the tablespoons to find the answer. 2 is cups, and it's on the numerator, and 1.5 is cups. It would have to be a numerator since you would only use denominators to plug in the value of tablespoons in the equation. v would be the denominator with 1.5 as the numerator since we are trying to find v with 1.5, so 1.5 has to be in the same fraction.

Hope this helps!

Need help plz it’s only one question!!!

Answers

Answer:

owes $12.50

Step-by-step explanation:

2.5*5

=12.5

Answer:

-12.5

Step-by-step explanation:

If you do 2.50*5 (because Ms. Ortiz borrows $2.50 every day for 5 days) it equals 12.5, and since it's how much she owes, you have to make it negative, so it's -12.50 or she owes $12.50 (the first one if you are supposed to have the answer be negative, the second one if you have to have it in money form).

After Friday's football game, Megan and her friends go out for ice cream. They share the Mega Mountain sundae and finish the whole thing! When they pay for the sundae, Megan evenly divides the total among 5 people. Each person pays $5.20. Which equation can you use to find the total cost c of the sundae?

Answers

Answer:  c=  $( 5 x 5.20)

Step-by-step explanation:

Given: Total people =5

Money paid by each person = $5.20

Total cost of the sundae = (Number of people )  x (Money paid by each person)

Total cost of sunday : c= 5 x ($5.20)

i.e.Total cost of sunday = $(5 x 5.20)

i.e.Total cost of sunday = $ 26

Hence, the required equation to represent the total cost (c) of the sundae:

 c=  $( 5 x 5.20)

solve : 2⁴
I need to show work​

Answers

Answer:

16

Step-by-step explanation:

2 to the power 4

2 × 2 × 2 × 2 = 4 × 2 × 2 = 8 × 2 = 16

2⁴=16

2•2=4

4•2=8

8•2=16

hope i helped. (:

Write an expression equivalent to m+m+m+m+m using a coefficient and a variable.

Answers

Answer:

5m

Step-by-step explanation:

there are 5 m with each a coefficient of one

Find The Area...
HURRY

Answers

Answer:

40in long your welcome I hope /his helps

20 x 25 = 500 in.^2 (base x height)

Triangle ABC was dilated and rotated to form triangle DEC.

Triangles A B C and D E C. Side A C is x and side B C is 8. Side E C is 5, side E C is 7.8, side C D is 6.

What is the length of side AC? (Figures not drawn to scale.)



IF YOUR CORRECT I WILL GIVE U THE CROWN

Answers

Answer:

9.6

Step-by-step explanation:

Answer:

9.6

Step-by-step explanation:

Find the area of this composite figure.

Answers

Answer: ≈ 551.71 ft²

All work is shown in the picture.

Answer:

551,7

see in the picture, this composite figure is made up of a rectangle and 2 halves of a circle

=> the area of this composite figure = the area of a rectangle + the area of a circle

+) the area of the rectangle = 15.25 = 375

+) the area of the circle = (15/2)².pi = 56,25pi

=> the area of this figure = 375 + 56,25pi = 551,7

Help please I need help with this

Answers

Answer:

The answer is 1.53 for week 1 and

week 2 is 1.2

Step-by-step explanation:

write the recurring decimals as fractions 0.15 and 0.369​

Answers

Answer:

0.15 = 3/20. 0.369= 369/1000.

SOMEONE HELP ME PLEASE. What is the missing number in the synthetic-division array?
-1
3
-1
-4
-3
-7
2
7
9
3
-10

Answers

Your answer should be 1 I’m sorry if this is incorrect and if it’s right pls leave Barinliest trying to rank up

Answer:

-9

Step-by-step explanatio

HELP What is the area of a circle with a radius of 13 feet? IT IS NOT 530.93 ft ​

Answers

Answer:

530.66

Step-by-step explanation:

to find the area you need to do pi times the radius square and to find the radius squared you just times it by its self so 13 times 13 which is 169 and pi is 3.14

so now you just do 3.14x169=530.66

Which system of equations has no solutions? y - ​

Answers

the second one on the top right

two angles of a triangle measure 29 degrees and 12 degrees what is the measure of the third angle?

Answers

Answer:

The measurement of the third angle would be 139 degrees.

Step-by-step explanation:

Using the triangle sum theorem, you already know that all interior angles of a triangle add up to 180 degrees. So since you already have two angle measurements, all you have to do is add them together and subtract them from 180 degrees. In this case it is 29+12, which equals 41. Now you subtract that from 180 and get 139.

I hope this helps!

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