Is this relation a function? Justify your answer.

Please help me!! 5:45pm est! Answer as soon as you can!

Answer:

y=(-2)

Step-by-step explanation:

x=(-4) so 3x(-4)=(-12) (note: negative times a positive always equals a negative) 12/6=2 so 6x(-2)=(-12) both equations equal the same answer

Answer:

47.581

Step-by-step explanation:

can't explain I just know how to do it

Answer:

2/12 or 1/6

Step-by-step explanation:

Make common denominators, 3/4 turns into 9/12. Take away 9/12 from 11/12, simplify if needed, and boom! done!

Answer:

-8-x=x-4x

-8-x=-3x

-8=-2x

4=x

Answer:

free robux!?!!?

Step-by-step explanation:

Answer:

45

Step-by-step explanation:

corresponding angles are congruent

3 and 7 are corresponding

Answer:

what?

Step-by-step explanation:

Answer:

Your question is not clear

Answer:

I believe it would be 16.75 but ik not completely sure

The meaning of f(7) is that a vehicle is parked for 7 hours, and the cost of parking for 7 hours will be $16.75.

A function assigns the value of each element of one set to the other specific element of another set.

Given that the function for the cost of parking in the garage for 2 hours or more is f(x)=8+1.75(x–2), where x is the number of total hours parked in the garage.

Now, the meaning of f(7) is that a vehicle is parked for 7 hours in the parking garage. And its value can be found by substituting the value of x as 7 in the given function,

f(x) = 8 + 1.75(x – 2)

f(7) = 8 + 1.75(7 – 2)

     = 8 + 1.75(5)

     = 8 + 8.75

     = 16.75

Hence, the meaning of f(7) is that a vehicle is parked for 7 hours, and the cost of parking for 7 hours will be $16.75.

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Answer:

(`1/4)^4

Step-by-step explanation:

Since the probability of landing on a head is theoretically the same as that of landing on tails, and since the four flips are entirely independent of one another, the desired probability is

(1/2)^4 or 1/16

Answer:

The logical answer is 246

Step-by-step explanation:  So, (X+1)+ (X+2) + (X+3)=738 then 3x+3=738 so x=245. 245 is the first number so then the answer is 245+246+247=738. And that leads to the conclusion that the middle number is 246.

Answer:

he has to get at least a score of 88

Step-by-step explanation:

Answer:

84.25%

Step-by-step explanation:

85+76+95+81 = 337

337/4= 84.25

so Jack needs to get at least 84.25% on his fifth test to have an average of at least 85%:)

Step-by-step explanation:

Using vertex form of a parabola:

y = a (x − h)² + k

where (h, k) is the vertex.

If we say the vertex is (0, 80), then:

y = a (x − 0)² + 80

y = ax² + 80

The roots of the parabola are (-60, 0) and (60, 0).  If we plug this in:

0 = a (60)² + 80

-80 = 3600a

a = -1/45

Noemi's team's answer is incorrect.

Answer:

the answer is B this other guy messed up his math trust me i know it's right

Step-by-step explanation:

if you add up all the numbers it equals 27 squar units

Answer:I think it is

7 -5

Step-by-step explanation:

Answer:

D-(7, –5)

Step-by-step explanation:

hope this helps:)

Answer:

1 3/10 pounds of candy. Or around 1 pound

Step-by-step explanation:

6 1/2= 6.5

6.5/5=1.3

1.3 as a fraction is 1 3/10

The first negative sign cancels out the second, so 2 is equivalent to -(-2).

A double negative number becomes a positive.

-(-2) = 2

The answer is positive 2

Answer:

0.6

Step-by-step explanation:

Just divide 3 by 5. Fractions are also basically a division problem.

Hope this helps! :)

Answer:

A=3.1

B=3.2

Step-by-step explanation:

Answer:

25 minutes...

Step-by-step explanation:

This is because if he can complete 12 math problems in 6 minutes when u simplify that u get 2 problems done per minute so that would make 50 problems done in 25 minutes

David take 25 minutes to complete 50 math problems.

It is a method where we find the value of a single unit from the value of multiple units and the value of multiple units from the value of a single unit.

Steps to Use Unitary Method

First, let us make a note of the information we have. There are 5 ice-creams. 5 ice-creams cost $125.

Step 1: Let’s find the cost of 1 ice cream. In order to do that, divide the total cost of ice-creams by the total number of ice-creams. The cost of 1 ice-cream = Total cost of ice-creams/Total number of ice-creams = 125/5 = 25. Therefore, the cost of 1 ice cream is $25.

Step 2: To find the cost of 3 ice-creams, multiply the cost of 1 ice cream by the number of ice-creams. The cost of 3 ice-creams is cost of 1 ice-cream × number of ice-creams = 25 × 3 = $75. Finally, we have the cost of 3 ice-creams i.e. $75.

Given:

David completed 12 math problems in 6 minutes.

So, he will solve one math problem in= 6/12 = 1/2 minutes

Now, to complete 50 math problem he needs

=50 x 1/2

=50/2

=25 minutes

Hence, David take 25 minutes to complete 50 math problems.

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Answer:

The store will use 772 grams of sugar in 10 hours.

Taking into account the rule of three, a candy store uses 772 grams of sugar in 10 hours.

The rule of three is a way of solving problems of proportionality between three known values and an unknown value, establishing a relationship of proportionality between all of them.

That is, what is intended with it is to find the fourth term of a proportion knowing the other three.  

If the relationship between the magnitudes is direct, that is, when one magnitude increases, so does the other (or when one magnitude decreases, so does the other), the direct rule of three must be applied.

To solve a direct rule of three, the following formula must be followed, being a, b and c known data and x the variable to be calculated:

a ⇒ b

c ⇒ x

So: [tex]x=\frac{cxb}{a}[/tex]

The rule of three can be applied as follow: if in 1 hour a candy store uses 77.2 grams of sugar, in 10 hour how many mass is used?

1 hour ⇒ 77.2 grams

10 hours ⇒ x

So: [tex]x=\frac{10 hoursx77.2 grams}{1 hour}[/tex]

Solving:

x= 772 grams

In summary, a candy store uses 772 grams of sugar in 10 hours.

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Answer:

The answer is C) 7^11

Answer:

$316

Step-by-step explanation:

Since each cardigan costs $79 and there are 4 cardigans you would need to multyply 79×4. Which is $316. Kelly would be billed $316 for all four cardigans.

Answer: 22.34375

Step-by-step explanation:

35 and 3/4 is equal to 35.75

Therefore,

35.75 x (3/8) is equal to 13.40625 underground.

So 35.75 - 13.40625 = 22.34375 feet above ground

The value is 64.

How I got the answer :

Look at PEMDAS so first is parenthesis

24+8 = 32.

Next multiply 32 by 2 because M is next. 32 times 2 =  64

please put brainliest thanksss

Answer:

64

Step-by-step explanation:

2x(24+8)

2x32 or 32 plus 32

64

Answer:

$158.60 for the racquet

Answer:

k>3/2

Step-by-step explanation:

To solve this, you need to do fraction cross-multiplying.

So, If a/b=c/d, then a*d=c*b

After you cross-multiply, you get this: (11k-15)*4>3(5-2k)

If you simplify 3(5-2k), you get 15-6k

Then, simplify the next side as well

The full simplified expression should be: 44k-60>15-6k

If you add 60 to both sides, you get 44k>-6k+75

Then add 6k to both sides 50k>75

Then all you have to do is divide both sides by 50 and you get:

K>3/2 OR k>1.5