Look at this mapping diagram.
Is this relation a function?

Answer:

Down below

Step-by-step explanation:

i. 80/100 = 4/5 = 80%

ii. 12.5/100 = 1/8

iii. 10/100 = 1/10

answer is option B 480 because it is getting reduced by 4 times at Evey step

Answer:

30*4=120

120*4=480

answer=480

Step-by-step explanation:

Answer:

[tex](6x + 7)(8x - {170}^{0} ) \\ 6x + 8 x = - {170}^{0} - 7 \\ 14x = { - 177}^{0} \\ \frac{14x}{14} = \frac{ { - 177}^{0} }{14} \\ x = - 163 [/tex]

Answer:

140 comied

Step-by-step explanation:

Answer:

a

Step-by-step explanation:

40° + 3y + 2y = 180°

↔ 5y = 140°

↔ y =28°

I HOPE IT WILL HELP YOU A LOT.

I hope your day goes great.

In x axis y become minus .

In y axis x become minus .

Your answer i s

A' (1 ,-2 )

B' (3,-5)

C' (2,-1 )

Step-by-step explanation:

-5 4/11 = -59/4 , this is a fraction and all the fractions are rational numbers

√31 is not rational number

7.608 = 7608/10000, this is a rational number

18.466666... = 277/15, this is a rational number

The number, option (B) √31 is not a rational number.

A rational number can be defined as any number which can be represented in the form of p/q where q ≠ 0. It can be made by dividing an integer by an integer.

For the given situation,

The number is a rational number when it is in the form of fraction as [tex]\frac{p}{q}[/tex].

The options are

a) -5 4/11

⇒ [tex]-5\frac{4}{11}=-\frac{59}{11}[/tex]

The number is expressed in fraction. So it is a rational number.

b) √31

The number cannot be expressed in fraction. So it is not a rational number.

c) 7.608

⇒ [tex]7.608=\frac{7608}{1000}[/tex]

The number is expressed in fraction. So it is a rational number.

d) 18.46 repeating

⇒ [tex]18.4666666667=\frac{277}{15}[/tex]

The number is expressed in fraction. So it is a rational number.

Hence we can conclude that the number, option (B) √31 is not a rational number.

Learn more about rational numbers here      

https://brainly.com/question/19161857

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Answer:

Yes, it's a rational number

Step-by-step explanation:

-3/7. It is a rational because. It can be written as p/q form. Where p/q are non zero number. And in decimal it would be -0.42

Answer:

-3/7 is a rational because as it can be written as p/q form where p/q are integers and q≠0.

-3/7 = -0.4285

To the nearest hundredth,

=> -0.43

one CD is $19.98 with the shipping fee so use what money you have and see what you get :)

Answer:

x=2

Step-by-step explanation:

[tex]45x + 93 = 30x + 123 \\ 45x - 30x = 123 - 93 \\ 15x = 30 \\ x = \frac{30}{15} \\ x = 2[/tex]

Step-by-step explanation:

just trying....hope that helps

[tex] \large \mathfrak{Solution : }[/tex]

Answer: 0.113

Step-by-step explanation: 46 divided by 5 = 0 next put a 5 next to the 2 46 divided by 5.2 = 1 then there was six left over so put a six next to the 0 46  divided by 60 = 1 then there is 14 left over so put a 14 next to the 0 46 divided by 140 = 3

So the answer is 0.113 hope that answer helped you

Answer:

83 i think

Step-by-step explanation:

sorry if its wrong

Answer:

B

Step-by-step explanation:

x and 83 are same- side interior angles and sum to 180° , then

x + 83° = 180° ( subtract 83° from both sides )

x = 97° → B

Answer:

x = - 2

Step-by-step explanation:

−5x−10= 2−(x+4)

−5x−10= 2−1(x+4)

−5x−10= 2−1x+(−1*4)

−5x−10= 2−x+−4

−5x+−10= 2−x+−4

−5x−10= (−x)+(2-4)

−5x−10= −x−2

−5x−10= −x−2

−5x−10+x= −x−2+x

−4x−10= −2

−4x−10+10= −2+10

−4x= 8

x= −2

Hope it helps!

Answer:

The middle integer is 11.

Step-by-step explanation:

Hi there!

Let x be the smallest of the three consecutive integers.

Let x+1 and x+2 be the next consecutive integers. This makes x+1 the middle integer.

We're given that the third integer subtracted from the sum of the first two integers equals 9. We can use this to construct an equation:

[tex](x)+(x+1)-(x+2)=9[/tex]

Combine like terms:

[tex]x+x+1-x-2=9\\x+x-x+1-2=9\\x-1=9\\x=10[/tex]

Therefore, the smallest integer is 10.

Because the middle integer is x+1, the middle integer is 11.

I hope this helps!

Answer:

28 in.

Step-by-step explanation:

All you have to do is all the length of all the sides: 6+6+8+8=28 in.

Answer:

am sorry i dont know i just came for the coins bye

Step-by-step explanation:

Answer:

Step-by-step explanation:

(f-g)(x) = f(x)- g(x)

= (3x + 7) - (3x)

= 7

Therefore (f-g)(x) = 7

Answer:

(f - g)(x) = 7

Step-by-step explanation:

Here, we should subtract the two functions:

f(x) = 3x + 7  and g(x) = 3x

(f - g)(x) = 3x + 7 - 3x

            = 3x - 3x + 7

           = 7

Hence, (f - g)(x) = 7

Answer:

Girls:Boys

9:14

Hope it helps!!

Answer:

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Step-by-step explanation:

Let one of the numbers be x,

Then the two numbers are x and x +1

And,

x+x+1 = 53

2x = 53 - 1 (Transposing 1 from LHS to RHS)

2x = 52

x = 52/2

x = 26

x + 1 = 27

So, The two numbers are 26 and 27.

Answer:

[tex]2 :\sqrt{\pi} [/tex]

Step-by-step explanation:

a.......... [tex] x_{1} [/tex]

Answer:

option A 9.1 is close to 90

Answer:

9

Step-by-step explanation:

set up the equation: ab+bc=ac

(x-6) + 7 = (-8+2x)

Step 1: Simplify both sides of the equation.

x−6+7=−8+2x

x+−6+7=−8+2x

(x)+(−6+7)=2x−8(Combine Like Terms)

x+1=2x−8

x+1=2x−8

Step 2: Subtract 2x from both sides.

x+1−2x=2x−8−2x

−x+1=−8

Step 3: Subtract 1 from both sides.

−x+1−1=−8−1

−x=−9

Step 4: Divide both sides by -1.

−x/−1  =  −9 /−1

x=9

Answer:

34024.83

Step-by-step explanation:

Step-by-step explanation:

[tex](5 - 3y) {}^{2} \\s olution \div \\ ( - 3y + 5) + 5( - 3y + 5) \\ 3y( - 3y + 5) \ + 5( - 3y + 5) \\ 9y {}^{2} - 15y + 5( - 3y + 5) \\ 9y {}^{2} - 15y - 15y + 25 \\ 9y { }^{2} - 30y + 25 \\ [/tex]

hope this will help u :)

Answer:

I dont understand if he/she needs it worked out or what, because the question makes no sense?

Step-by-step explanation:

Evaluate- (5 - 3y) 2

Subtract the terms- (- 3y + 5) 2

Solution- 9y2 - 30y + 25

Alternative Form- (3y - 5)2

Answer:

[tex]4x - 27 = - 4x - 35 + 8 \\ 8x = 0 \\ x = 0[/tex]

Answer:

2/5+4/10

first find the LCM =10

Mytiply both numerator and denominator to have the denominator same value 2×2/5×2 + 4×1/10×1=

4/10 + 4/10 add numerator 8 / 10 both number divisible by 2 answer is 4/5

hope so it will help, if so please mark me brainliest