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3 years ago

Im having trouble with my homework can u tell me what is x=3y

2 answers:

8 0

Y=3xx=3yIf you sub for y:x = 3*3x1 = 9
There's no solution possible other than x and y are zero.x = 3*3xx = 9x8x = 0x = 0y = 0<span>If you graph these, you get 2 straight lines that intersect at the origin (0,0)</span>

viktelen [127]3 years ago

4 0

That's an equation that describes a linear and proportional relationship between 'x' and 'y'. The graph of that equation is a straight line through the origin whose slope is. 1/3 .

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Solve the equation -(-2-n)

Harrizon [31]

Answer:

<h2><u><em>I think 2 + n</em></u></h2>

Step-by-step explanation:

<h2><u><em> Step1: Distribute parentheses -(-2)-(-n)</em></u></h2><h2><u><em>Step 2: Then Apply minus - plus rules and u will get -(-a)=a</em></u></h2><h2><u><em>step 3: = 2+n</em></u></h2>

8 0

3 years ago

A leaking bucket is filled to 3/4 capacity. After some time, 1/2 of the water has leaked out. What fraction of the water leaked

Ilia_Sergeevich [38]

C. 3/8 is the answer

3 0

3 years ago

Which relations are functions? List the relation number(s) that are function(s) in the answer bank

Sergeu [11.5K]

Answer:

options 1,3,4 are functions.

Step-by-step explanation:

RULE: a relation is said to be a function if every element in the domain ( the numbers in the left side in the below sets) is related to only one number ( number on the right side in the below sets).

Let us check each option one by one:

1. 3 2

9 1

-4 7

0 -2

here each number on the left side is mapped to or is related to one number only.

so this relation is a function

2. 7 1

-5 2,3

1 0

here, "-5" is mapped to two different numbers. so this relation is not a function.

3. -2 -4

2 4

6 8

-6 -8

here each number on the left side is mapped to or is related to one number only.

so this relation is a function

4. 1 3

-1 3

2 3

-2 3

here each number on the left side is mapped to or is related to one number only.

so this relation is a function.

even if it is related to the same number, it doesn't matter.

it should follow the above given rule that's it.

6 0

3 years ago

If value of a+b=7and ab=12then find the value of a and b

LiRa [457]

a+b = 7

ab =12

we know that

a and b = ab – a+b

= 12 –7

= 5 ans

3 0

3 years ago

Read 2 more answers

The advertised duration of the trip is 2 hours and 15 minutes. The company operating the ferry would like to increase its operat

vesna_86 [32]

The 2.88 minutes have to reduce the standard deviation to increase the efficiency.

According to the statement

we have given that the duration of the trip is 2 hours and 15 minutes. And we have to how much standard deviation be reduced to increase the operational efficiency.

So, For this purpose, we know that the

Let X be the time taken to reach the resort. Then it is given that the

N (μ , σ).

Here μ is 2 hours then

μ = 2*60 = 120 minutes.

And

Let σ be the reduced standard deviation such that new distributions becomes N (μ , σ)

Then P ( x <135)

here 135 is the minute format of 2 hours and 15 min.

So,

P ( x <135) = 0.95

And

P [ (x -120 / σ) < (135 -120 / σ)] = 0.95

P [ Z < ( 15 / σ)] = 0.95

And after solving it the

σ = 9.22 min.

i.e. 12 - 9.22 = 2.88 min.

So, The 2.88 minutes have to reduce the standard deviation to increase the efficiency.

Learn more about Standard deviation here

brainly.com/question/475676

Disclaimer: This question was incomplete. Please find the full content below.

Question:

The time it takes for a ferry to reach a summer resort from the mainland is Normally distributed with mean 2 hours and standard deviation 12 minutes. The advertised duration of the trip is 2 hours and 15 minutes. The company operating the ferry would like to increase its operational efficiency by reducing the standard deviation so that they are on time 95% of the time. How much do they have to reduce the standard deviation

#SPJ4

5 0

1 year ago