Mathematics High School

Which of the following tables represents a proportional relationship?

Answers

Answer 1

Answer:

Step-by-step explanation:

A is incorrect because as x goes from 0 to 1, y jumped from 0 to 4

B is incorrect because as x goes up by 2, y at first goes up by 2 but then jumped to 4.

C is correct because as x goes up by 1, y goes up by 3

D is incorrect because y jumped from 0 to 10 and first but lowered to 5 after.

Related Questions

how many solutions does the equation 2 + 6 (x - 4) = 3x have?

Answers

The answer is x= 22/3 hope it helps!

Answer:

1 solution

Step-by-step explanation:

To find this out you can just solve the equation so if you simplify you get

2+6x-24=3x

-3x=-22

x=22/3

so one solution

I got some money for my birthday. I save and spend in the ratio 2:3. I save £32. How much money did I receive for my birthday?

Answers

Answer:

80 i think

Step-by-step explanation:

32.3=80

Step-by-step explanation:

Amount of money saved : spent = 2 : 3.

Since amount of money saved = £32,

Amount of money spent = £32 * (3/2) = £48.

Total amount of money = £32 + £48 = £80.

Therefore I received £80 for my birthday.

If x and y vary inversely and x = -3 when y = 12, what is the constant of variation?

Answers

k=-36

Step-by-step explanation:

x inversely proportional to y

x=1k/y

where k = constant

x= -3, y= 12, k = ?

-3=k/12

k = -3 × 12

k = -36

Help!!!!!! Please and thanks

Answers

Answer:

HI I am back thanks for zooming in I would say your answer would be D sorry if i am wrong but that should be correct I am 98% sure. Plz let me know if it is correct or not! (Brainliest Plz)

Step-by-step explanation:

(PLz give me Brainliest)

Is "The radio's sound died down" a metaphor, personification, onomatopoeia, or oxymoron answer quick

Answers

Answer:

I think personification

Step-by-step explanation:

A square with a perimeter of 20 units is graphed on a coordinate grid. The square is dilated by a scale factor of 0.4 with the origin as the center of dilation. If (x , y ) represents the location of any point on the original square, which ordered pair represents the coordinates of the corresponding point on the resulting square

Answers

Answer:

its 20x20

Step-by-step explanation:

ty for point also i did the test

Answer: I just did the test so the answer would be (20x,20y)

Step-by-step explanation: hoped this help thx for the points :D

what is 8029 times 89810

Answers

Answer:

721084490

Step-by-step explanation:

f f(x)=4x^(2)-9, find f(-1)

f(-1)= ?

Answers

Answer:

[tex]f(-1)=-5[/tex]

Step-by-step explanation:

Numeric Value of a Function

Given:

[tex]f(x)=4x^2-9[/tex]

It's required to find f(-1).

It can be calculated by substituting the value x=-1 in the function:

[tex]f(-1)=4(-1)^2-9[/tex]

Calculating:

[tex]f(-1)=4*1-9[/tex]

[tex]f(-1)=4-9[/tex]

[tex]\boxed{f(-1)=-5}[/tex]

Solve for the unknown variable

Answers

Answer:

Step-by-step explanation:

ayo

The population of Kenya was 45.1 million in 2009 and has been growing by 2.3% each year. If this trend continues, in what year will the population exceed 52.2 million?

Answers

Answer:

6.4294 years

Step-by-step explanation:

45.1 million in 2009 -- 2.3% each year

In what year will the population exceed 52.2 million?

We use exponential growth formula

ξ(t) = y = ab^t

a = 45.1, b = 1+ξ, ξ= 2.3%, ξ(t) = 52.2

52.2/45.1 = (1.023)^t

We take log both side

Log(1.15742794) = tlog(1.023)

0.0634939619 = t0.00987563371

t = 0.0634939619/0.00987563371

t = 6.429355701569454

t = 6.4294 years

Pleaseeee helppppp meeeeee

Answers

Answer:

the answer is (1)

Step-by-step explanation:

k = am +3mx

i) factorize out m from the expression

k = m(a+3x)

ii) rearrange the equation using commutative property

m(a+3x) = k

iii) divide both sides of the equation by (a+3x)

[tex] \frac{m(a+3x)}{(a + 3x)} = \frac{k }{(a + 3x)} [/tex]

[tex]m = \frac{k }{a + 3x} [/tex]

Solve the inequality:
2(x = 5) > 4

Answers

Answer:

x>-3 (if the = is meant to be +)

Step-by-step explanation:

Distribute the 2: 2x+10>4

Subtract 10 from both sides: 2x>-6

Divide both side by 2: x>-3

Find the degree of the polynomial -m^6-10m^3

Answers

Answer:

We conclude that:

The degree of the polynomial is 6.

Step-by-step explanation:

Given

Given the polynomial

[tex]-m^6-10m^3[/tex]

To determine

The degree of the polynomial

In order to determine the degree of the polynomial, we need to check the term with the highest of the degree with non-zero coefficients. The degree of an individual term is basically the exponent of the term.

In our case,

The exponents of the terms of this polynomial are, in order, 6, and 3.

Thus, the highest degree (larger exponent) of the term is 6.

Therefore, we conclude that:

The degree of the polynomial is 6.

How many groups of 13 inch are in 34 inch?

Answers

Answer:

2 groups

Step-by-step explanation:

13 times 3 is 39

39 is not 34

please mark me brainliest!!!

9 x 2 = 2 x 9

A. Associative property of x
B. Distributive property
C. X inverse property
D. Commutative property of X

Answers

Answer:

Step-by-step explanation:

communicative property of X

HELP PLLSS
92;69
work included!

Answers

Answer:

92/69 cannot be simplified

Step-by-step explanation:

3-7/8

please answer :p

Answers

Answer:

2.125 is your answer!! pls give brainlist (:

Step-by-step explanation:

Consider the function represented by 9x + 3y = 12 with x as the independent variable. How can this function be
written using function notation?
O FU=-v+
Of(x) = - 3x + 4
o f(x) = -x +
Of = -3y + 4

Answers

Answer:

9x + 3y = 12

3y = -9x + 12

y = -3x + 4

f(x) = -3x + 4

Step-by-step explanation:

I hope it's help

Which of the following is equivalent to
the expression (i + 5)(3 + 4i)?

Answers

Answer: 11+23i

Step-by-step explanation:

(i+5)(3+4i)

First foil

3i+4i^2 +15+20i

Then combine like terms

23i+15+4i^2

i^2 = -1 so,

23i+15+4(-1)

11+23i

Write down the value of the 4 in 8642 in figures

Answers

I have no idea but I

2.
.
X + 3
X + 18
X +4
X=

Answers

x = -1,-16,-2.

TIE FIGHTERS GO ZOOOOOOOM

Jasmine is buying cakes for a party. One chocolate cake costs $7, and one lemon cake
costs $5. If Jasmine needs to buy 18 cakes and has $110 to spend, how many lemon
cakes can she buy?

Set up and solve a system of linear equations to model how to determine the number
of lemon cakes Jasmine can buy for the party.

Answers

Answer:

Step-by-step explanation: Am not sure if this is the answer you guys are looking for but my in 9th grade and this is how my math teacher taught me how to do it.

one chocolate cake=?=x

one lemon cake=?=y

$270 spent

need to buy total of 18 cakes

1-chocolate cake =$7

lemon cake = $5

cakes 18=x+y

money $110=$7x+$5y

When i graphed it on the demos calculator i got (10,8).

So 10= the number of chocolate cake brought and 4= the number of lemon cake brought

Can someone substitute this? Please and thank you

Answers

Step-by-step explanation:

soln

given

y=2x+3 -----(i)

y=-x-9 ------(ii)

now, putting value of equation (i) in (ii)

y= -x-9

or, 2x+3 = -x-9

or, 2x+x = 9-3

or, 3x = 6

or, x = 6/3

or, x = 2

again,

y = 2x+3

or, y = 2×2+3

or, y = 7

therefore, value of X and Y are 2 and 7 respectively.

The price of a technology stock was $9.70 yesterday. Today, the price fell to $9.59 Find the percentage decrease. Round your answer to the nearest tenth of a percent.

Answers

Answer:

round it to 20×10 there's you answer

-3x+6<27?

Solving Linear Inequalities.

Answers

While solving, you can treat inequalities the exact same as you would treat equations. Pretend the inequality sign is an equals sign. Now solve for x.

-3x + 6 < 27

-3x < 21

3x < -21

x < -7

Which of the graphs below represents the solution set for d - 4 > -3?

Answers

Answer: C

Step-by-step explanation:

Simplify this expression. Show your work. (7x - 5) - (3x - 2)

Answers

Answer:

4x-3

Step-by-step explanation:

(7x-5) - (3x-2)

aka

(7x-5) -1 (3x-2)

first distribute the -1 into (3x-2)

-3x+2

(7x-5)+ -3x+2

next combine like terms

7x-3x=4x

4x-5+2

then

-5+2=-3

4x-3 would be your simplified equation

Evaluate the expression when $a=3$ and $c=12$ . plzz help meeee

Answers

No expression shows up

Which table does NOT show a proportional relationship?
1 point

A
B
C
D

Answers

The answer is Either ‘A’ or ‘D’

I think it’s C or A I don’t know but I say A or C

Which of the following sunds does not result in an answer of -5?
1. (-7) + (+2)
2. (-11) + (+6)
3. (-9) - (-4)
4. (-8) - (+3)

Answers

Answer:

4. (-8) - (+3)

Step-by-step explanation:

This answer does not result in an answer of -5

This subtracts -3 from -8, which gives you the answer of -11.

So, this answer is correct because it is the one that doesn't result in -5.

Answer:

Problem #4

Step-by-step explanation:

Some things to remember when doing problems like are

Double negative = positive

Double positive = positive

Negative & positive = negative

1. (-7) + (+2) 2. (-11) + (+6) 3. (-9) - (-4) 4. (-8) - (+3)

-7 + 2 -11 + 6 -9 + 4 -8 - 3

-5 -5 -5 -11

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