Which of the following relations is not a function?
{(0,0),(1,0),(2,0)}
{(1,2),(3,-5),(-1,7)}
{(7,-1),(3,-2),(5,-2)}
{(-1,3)(4,2),(-1,5)}

Answer:

-3, -

Step-by-step explanation:

 I took the test

cancelout the v^-6

21/-7

-3

Answer:

Step-by-step explanation:

[tex]\dfrac{21y^{-6}}{-7y^{-6}}= (-3) *y^{-6 -[-6]} = (-3)*y^{6+6}=-3*y^{0} = -3*1 = -3[/tex]

Answer:

Step-by-step explanation:

The triangle formed by the lamp post and the (24+6)foot side on the ground is similar to the right triangle formed by the person of height h and his 6 foot shadow.

H/25=6/36

H=5

The person is 5 feet tall when his shadow is 6 feet long.

In general, the term "proportion" refers to a part, share, or amount that is compared to a total.

According to the concept of proportion, two ratios are in proportion when they are equal.

A mathematical comparison of two numbers is called a proportion. According to proportion, two sets of provided numbers are said to be directly proportional to one another if they increase or decrease in the same ratio. "::" or "=" are symbols used to indicate proportions.

Given:

A person is standing 24 feet away from a street light that is 25 feet tall.

let the height of person be x when its height of shadow is 6 feet.

Using Proportion

x/ 6 = 25 / 30

30x =150

x= 150/ 30

x= 5 feet

Hence, the height of the person is 5 feet.

Learn more about proportion here:

https://brainly.com/question/26974513

#SPJ2

Answer:

y= 1/4 (x -8)

Step-by-step explanation:

x -4y= 20

-4y= -x + 20

y= 1/4 × -5

y - y1 = m (x - x1)

y - 0 = 1/4 (x -8)

y= 1/4 (x -8)

Answer:

s = 12

Step-by-step explanation:

Since the triangles are similar then corresponding sides are in proportion, that is

[tex]\frac{AB}{XY}[/tex] = [tex]\frac{AC}{XZ}[/tex] , substitute values

[tex]\frac{6}{9}[/tex] = [tex]\frac{8}{s}[/tex] ( cross- multiply )

6s = 72 ( divide both sides by 6 )

s = 12

Answer:

Im not

sure but i think its (B) i really hope its right

Step-by-step explanation:

Answer:

1. r^5

2. st^2

3. qr (the two "s" cancel each other out)

4. z (the x^2's and y^2's cancel each other out)

5. m (the n^2's and o's cancel each other out)

6. x

7. z^-1

8. a (the b^2's cancel each other out)

9. d^4 f^2

Step-by-step explanation:

When exponential variables are divided, the base variable stays the same, and the exponents are subtracted. For example, for #6, x^2/x^1 (x doesn't need an exponent but for the sake of explanation is ^1). We subtract the exponents and since anything "to the power of 1" will just be the base number, for example 6^1 will still be 6.

The simplified expressions are given below.

Exponents are the method of writing numbers, especially large numbers, in terms of a base and an exponent, which is written as the power of base.

1) We have the division rule of exponents that,

xᵃ /  xᵇ = xᵃ⁻ᵇ

Using this,

r⁶ / r = r⁶⁻¹ = r⁵

2) s³t⁴ / s²t² = s³⁻² t⁴⁻² = st²

3) q³r²s / q²rs = q³⁻²r²⁻¹s¹⁻¹ = qr

s⁰ =  1, since any number raised to zero is always one.

4) x²y²z / x²y²z

Both numerator and denominator are same.

So the quotient is 1.

5) m³n²o / m²n²o

n²o gets cancelled both in the numerator and denominator.

m³n²o / m²n²o = m³⁻² = m

6) x² / x = x²⁻¹ = x

7) z⁴ / z⁵ = z⁴⁻⁵ = z⁻¹

8) a²b² / ab²

b² gets cancelled since they are same in both numerator and denominator.

a²b² / ab² = a²⁻¹ = a

9) d⁵f³ / df = d⁵⁻¹f³⁻¹ = d⁴f²

Hence the simplified form of each of the expressions is given.

Learn more about Exponents here :

https://brainly.com/question/27850853

#SPJ3

Answer:

a) -8yx-20y

b) -6x ² - 3xy - 16x -2y - 8

Step-by-step explanation:

a) -4y(2x+5) apply multiplicative distribution law

-4y × 2x - 4y × 5 multiply the monomials

-8yx - 20y

b) kinda the same steps like a

:) distributive property btw

hope it helps if you need the steps for b I'll send them in the comment

Answer:

7

Step-by-step explanation:

You subtract 220 - 129 = 91 then divide by 13

Answer:

There is no graph.

Step-by-step explanation:

Answer:

3.000

Step-by-step explanation:

Selisih

= 5000 - 2000

= 3000

Maka, selisih harga tiket delman Korea & Kanada adalah 3.000 .

Tiket to Korea = 5.000

Tiket to Kanada = 2.000

—» Selisih = Tiket Korea - Tiket Kanada

—» Selisih = 5.000 - 2.000

—» Selisih = (5 - 2)000

—» Selisih = 3.000

Answer:

I believe it is c

Step-by-step explanation:

The metrical pattern of a trochee is said to have a "falling rhythm" because the emphasis comes at the beginning of the foot: "da-dum da-dum." This falling rhythm is the exact opposite of the iambic "rising rhythm" that is more common in both poetry and speech, so the cadence of trochaic meter tends to sound a little unnatural to the ear. While for this reason trochees are relatively rare in most poetry, the "downward" motion and "backward" orientation of trochees actually makes them a popular foot for writing about dark subjects like madness and death.

Answer:

Step-by-step explanation:

I don't understand this but D is the

Answer:

1/5

Step-by-step explanation:

Answer:

7y + 3 = 3x + 11

7y = 3x + 11 - 3

7y = 3x + 8

y = 3x + 8 / 7

7y + 3 = 3x + 11

7y + 3 - 11 = 3x

7y - 8 = 3x

x = 7y - 8 / 3

Answer:

30+4x

Step-by-step explanation:

Well, break it up into pieces: two rectangles.

Answer:

7/18

Step-by-step explanation:

Answer:

-87

Here ya go :)

Answer:

a) Cost of rent to own option is = ($156.99/month) ( 2 yrs)( 12 month/yr) = $3767.76

b) The amount of the finance charge is = $3767.76 - $3225.00 = $542.76

c) the simple interest rate can be calculated by this formula

I = Prt, where  

I = total interest value = $542.76

P = is the present worth or original cost including taxes = $3225.00

t = time in yrs = 2  

r = Yearly interest rate, By rearranging the formula:

r = I /Pt, r = ( $542.76 / $3225.00 . 2) ( 100) = 8.415%

Step-by-step explanation:

Answer:

y=x-5

Step-by-step explanation:

Answer:

AA=59-7t

BB=34-2t

t<5

Step-by-step explanation:

AA=59-7t

BB=34-2t

Snowman A is taller than Snowman B while 59-7t > 34-2t

25>5t

t < 5 hrs

Answer:

30

Step-by-step explanation:

I think but if is wrong i'm sory

Answer:

2x+3y=-6

Step-by-step explanation:

the intercepts are (-3,0) (x intercept) and (0,-2) (y intercept)

this means that when x = 0, y = -2 and when y = 0, x = -3.

the last two are not in standard form, so we can eliminate those.

the answer also cannot be the second one because both intercepts are negative. when we solve it, the intercepts would be (3,0) and (0,2). the answer must be 2x+3y=-6.

sorry for the late reply!

Answer:

I believe its A. 2x+3y=-6

Step-by-step explanation:

Answer:

For example, apply the distributive property to the expression 3 (2 + ) to produce the equivalent expression 6 + 3; apply the distributive property to the expression 24 + 18 to produce the equivalent expression 6 (4 + 3); apply properties of operations to + + to produce the equivalent expression 3.

Step-by-step explanation: hope this helps

Answer:

B)p=20

Step-by-step explanation:

25=5p/4

25×4=5p

100=5p

p=100/5

p=20

Answer:

Step-by-step explanation:

a=e= 90 b/c it is square

b= 45, it half of square

c base in rule of sin or cos, tan.

d=2,85

Answer:

3/7 times 2/3 is 2/7

Step-by-step explanation:

I used a calculator ! Please let me know if i am incorrect.

Answer:

0.28571428571

basically 0.28

Step-by-step explanation:

gooogle calculator