Mathematics High School

please, PLEASE answer this fast! I have 1 hour left before I pass it. Please help :( answer it properly! Thank you in advance.

-This is grade 8 math-

1.What elements belong to Set A and Set B?

2. Is there a repetition of the first elements in the ordered pairs? How about in second elements of the ordered pairs?

3. Does the set of ordered pairs represent a relation?

4. How is a relation represented?

Answers

Answer 1

Answer:

The range is is set of all second pairs (y-coordinates) while the domain is the set of first pairs(x-coordinates)

Step-by-step explanation:

Related Questions

Find the area of the base of a box of height 4cm and lateral surface area 120cm.sq if its length is twice its breadth.

Answers

Answer:

The area of the base of a box is 1800 cm².

Step-by-step explanation:

We have:

H: is the height = 4 cm

[tex]A_{l}[/tex]: is the lateral surface area = 120 cm

L = 2B

We can find the breadth of the base by using the lateral surface area and the height:

[tex] A_{l} = H*B [/tex]

[tex] B = \frac{A}{H} = \frac{120 cm}{4 cm} = 30 cm [/tex]

Now, if the length is twice its breadth we have:

[tex] L = 2B = 2*30 cm = 60 cm [/tex]

Hence, the area of the base is:

[tex] A_{b} = B*L = 60 cm*30 cm = 1800 cm^{2} [/tex]

Therefore, the area of the base of a box is 1800 cm².

I hope it helps you!

You order a 119 pound couch suppose you use 1 day shipping instead of 3 to 5 day shipping how much more will you pay

Answers

119 + 1 + 3 + 5 = add that if i am wrong sorry but have a nice day <3

Step-by-step explanation:

Alycia has $10 to use for some new school supplies. She wants to buy a
binder for $2.79, a package of markers for $1.25 and 2 packs of ink pens for
$ 1.96 each. How much change should she get? *

Answers

Her change will be $2.04

solve it...........!!!!

Answers

Answer:

I think it is correct and is 1 and 2

Step-by-step explanation:

5×4^(x+1)-16^x=64

0=64+16^x-5×4¹×4^x

0=(4^x)²-2×4^x×10+10²-10²+64

0=(4^x-10)²-36

(4^x-10)²=36

4^x-10=√36

4^x=+-6+10

when positive

4^x=4²

:.x=2

when negative

4^x=4

:.x=1

:.x=1,2 answer.

Angela makes a pillow in the shape of a wedge to use for watching TV. The pillow is filled with 0.35\text{ m}^30.35 m 3 0, point, 35, start text, space, m, end text, cubed of fluffy material.

Answers

Complete question :

Angela makes a pillow in the shape of a wedge to use for watching TV. The pillow is filled with 0.35 m3 of fluffy material, with base 0.5 m and height 1m

What is the length of the pillow?

Answer:

1.4 m

Step-by-step explanation:

The volume of wedge is given by:

V = Area of triangle * length

Area of triangle = 1/2 * base * height

Volume of wedge = 1/2 * base * height * length

Volume of wedge = 0.35m³

0.35 = 0.5 * 0.5 * 1 * length

0.35 = 0.25 * length

Length = 0.35 / 0.25

Length = 1.4 m

Answer:

1.4

Step-by-step explanation:

KAAAAAAAAAAAAAAHN!!!!!!!!!!!!!!

what's the inequality for 15x + 21 ≥ 120

Answers

X>= 6.6 is your answer

Find the area of the composite figure.

A) 22m
B) 26m
C) 30m
D) 34m

Answers

Answer:

C is the answer.

Which expression is equivalent to (44)2 . (47) 2? A. 1 46 1 1 B. 43 C. 411 D. 430

Answers

Answer:

Step-by-step explanation:

i dont know

A collector bought 47 coins at auction, some bronze and some silver. The bronze coins cost him $ 14 each and the silver coins, $ 18 each. If in total he spent $ 750, how many bronze coins did he buy and how many silver?

(with the steps)

please help me, it's for an exam

Answers

24 bronze coins and 23 silver coins

B= bronze coins S = silver coins
$14xB + $18 x S =$750
B + S = 47 total coins
Get in terms of S=47-B by subtracting B from each side, then replace the S in the first equation with this so that:
14xB+18x(47-B)=750
14B+846-18B=750
Subtract the 846 and combine the abs
-4B=-96 then divide the -4 on both sides
To get B=24 then 47-24=23=S

Im supposed to find angles for these, and I don't know on how to do that

Answers

Answer:

110

Step-by-step explanation:

They are equal to each other.

23x-5= 21x +5

2x = 10

x = 5

21(5) +5 = 110°

23(5) -5 = 110°

So it works. Angles are 110°

solve for y
3x+1/5y=7

Answers

Answer:

y = -15x + 35

Step-by-step explanation:

3x + 1/5y = 7

1/5y = -3x + 7

y = 5( -3x + 7)

y = -15x + 35

The population of a certain animal species decreases at a rate of 2.5%. If there are 400 of this animal in the wild, using an exponential function, predict approximately how many there will be in 4 years. Round to the nearest whole number.

Answers

X=y so y is the factor of 20 so the answer would be 20y

Answer:

20 years

Step-by-step explanations:

You just do the work and figure it out and it gives you the answer of 20 years

PLZ HELP ME PLZZZ I WILL GIVE BRAINLIEST......I REALLY NEED THE ANSWERS.

Answers

Answer:

2,4,2,1.7

Step-by-step explanation:

What is the determinant of H=

Answers

Answer:

The answer is -7

Step-by-step explanation:

I took the test! Hope this helps <3

9x+ 1 =x+ 9
the solution is x=

Answers

Step-by-step explanation:

9x + 1 = x + 9

9x - x = 9 - 1

8x = 8

x = 1

X is 1 because we can minus x fro. Both sides and 1 from both sides to get 8x equal to 8

ill mark brainlist plss help

Answers

he is going to need 37.5 ounces I guess

Inscribed angles!!

Find A, B, and C

Answers

sum of all exterior angles equals to 360

sum of interior angles equal to 180

divide 360 by 122 to find b the rest you'll get it

as you go further in the question

plz help me with this asap
81x^2 − 49y^2
Factorize each completely
1. y^2 − 1
2. x^2 − 2^2
3. x^2 − 4y^2
4. x^2 − 25b^2
5. 36 − 9m^2
6. 36a^2 − 169x^2

7. 81x^2 − 49y^2
8. 49r^2 − 16s^2
9. 144x^2 − 49
10. 64x^2 − 25
11. 81a^2 − 64b^2
12. 1 − 16x^2
13. 49x^2 − 1
14. (a + b)^2 − 2^2
15. (a − b)^2 − 1

Answers

Answer:

i will answer THIS.. just give me some time

Sketch graph for y=x^2+x-12

Answers

Answer:

graph your welcome :)

Step-by-step explanation:

hope this helps! try using the app Desmos if you have difficulty drawing graphs!

A chicken and rice recipe is shown below. Mrs. Hughes would like to make only two-thirds of the recipe. How many cups of each ingredient does Mrs. Hughes need? 2 2/3 cups of chicken broth 1 1/2 cups of chicken 3/4 cups of rice

Answers

Answer:

See explanation below

Step-by-step explanation:

This is actually pretty easy to explain, and we all need to do is work with fractions.

So we have a recipe for chicken and rice, but the person decides to use 2/3 of the recipe. to determine the quantity of each ingredient to be used, we just need to multiply the cups of each ingredient by 2/3, and that's it.

Let's go with each ingredient, one by one:

Chicken broth 2 2/3 cups:

In this case, let's convert the 2 2/3 to a simple fraction. (We just multiply the denominator by the single number and then, sum the numerator)

2 2/3 = (3*2) + 2 / 3 = 8/3 of cups

8/3 * 2/3 = 16/9 cups of chicken.

But to do this better, let's convert this into a mix fraction:

16 : 9 = 1 and the rest is 7 so:

1 7/9 cups of chicken

Chicken 1 1/2 cups:

We'll do the same thing as before:

1 1/2 = (2*1) + 1 / 2 = 3/2 of cups

3/2 * 2/3 = 1

1 cup of chicken

3/4 cups or rice:

3/4 * 2/3 = 1/2

1/2 cup of rice

Hope this helps

Help Pls!!! Will give brainliest

Answers

Answer:

Step-by-step explanation:

Complete the ordered pairs below so they satisfy the equation,
y= -2x + 6
Complete the following ordered pairs.
(0,_)
(6,_)
(_,20)
(Simplify your answers. Type an integer or a fraction.)

Answers

(0,6)
(6,-6)
(-7,20)

i believe !

anyone can do this please if you can do all of it of you can I'm really bad at math

Answers

Im Gonna Do 14 And 15.

14:
3/4 (9/12) + 1/3 (4/12) = 13/12
4/5 (16/20) - 1/4 (5/20) = 11/20

15:
-15 < -6
-31 < -19
-5 < 20
-21 < -15
0 < 22
-57 < -26
-71 < -10
3 < 21
-124 < 30
-43 < 18

Hope This Helps!

Sally's dance school had 60 students last year. This year there are only 48 students enrolled. By
what percent did the enrollment decrease? Show all of your work to justify your answer.

Answers

Answer:

20%

Step-by-step explanation:

60-48=12

changed ÷ original x 100%

= 12 ÷ 60 x 100%

= 20%

Gavyn and Alex win some money and share it into the ratio 1:4. Gavyn gets £6. How much does Alex get?

Answers

He gets 1.5 of it hope that help

Please help!! Question is above in the image

Answers

9514 1404 393

Answer:

$503.85

Step-by-step explanation:

The amortization formula can help with this.

A = P(r/12)/(1 -(1 +r/12)^(-n))

where P is the loan value, A is the monthly payment, r is the annual interest rate, and n is the number of monthly payments.

We want to find P. All of the other values are given.

P = A(1 -(1 +r/12)^-n)/(r/12)

P = 32.48(1 -1.012667^-18)/(0.012667) = 31.48·16.0054

P ≈ 503.85

The equivalent cash price is about $503.85.

please help me ( show ur work it’s multiple choice ):)

Answers

b=29.4 !!!!!!!! this how i do it

pls help me! 15 points

Answers

Answer:

1.414

Step-by-step explanation:

Which ordered pair is in the solution set of 3x - y = 10?

Answers

18 because that is the way you would solution a set of 3x

Answer:

it would be ( 0 , − 10 ) , ( 1 , − 7 ) , (2 , − 4 )

Step-by-step explanation:

Choose three values for x and substitute in to find the corresponding y values.

HELP GEO TESTT
NEED ANSWERS 1, 2, 3, THXXXXXX

Answers

where’s the picture ?

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