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DENIUS [597]
2 years ago
14

I NEED SOMEONE WHO IS SUPER SMART! I NEED HELP! PLEASE. I WILL GIVE BRAINIEST!!!!! THIS IS 30 POINTS. PLEASE!!!

Mathematics
1 answer:
kipiarov [429]2 years ago
7 0

Hey there mate :)

As per question,

Options (a), (b) and (d) are correct.

<h3>Proof :-</h3>

(a) <em><u>The cost per visit to a community pool.</u></em>

Considering x = number of visits to the pool

a = fixed cost of visit.

So, the cost per visit to the pool y will be ax

Therefore, this represents a linear function.

And

<em><u>The neighborhood charges a yearly fee to use the pool.</u></em>

Assuming x = number of years

a = fixed fee to use the pool

So the yearly fee to use the pool y will be ax

Therefore, this represents a linear function.

(b) <em><u>The cost to attend a show at the local theater. Tickets are $12 each.</u></em>

Let x = number of shows

Let the cost of one show = $12.

Now, the cost of x shows y will be 12x

So, it represents a linear function.

(d) <em><u>The distance a bicyclist travels when cycling at a constant speed of 30 mph. </u></em>

Assuming <em>x</em>= time

Speed = 30 mph.

Since the distance (y) is given as:-

Distance = Speed×time, so,

<em>=> y = 30x</em>

Hence, this also represents a linear function.

<u>Hence, all correct option are proved</u>

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G(x)=9x-11 find g(8)
sineoko [7]

Answer:

Step-by-step explanation:

8(9x-11)

72x-88

6 0
4 years ago
The value of 4 less than the product of 0.25 and x is greater than 6.
ella [17]

Answer:

0.25x - 4 > 6

7 0
3 years ago
Can someone help me with math? I DO NEED help with questions 13, 11, 9, 8, 7, 5, 3. PLEASE HELP ME!!!!! I need these answered by
jek_recluse [69]
Absolute value is just how many integers rhat number is away from 0. i say this because it’s not too hard of a thing to learn and it’s very important in the higher grades.

3 is 2 6/7
5 is a greater than symbol >
7 is 1/3 and negative 1/3 so -1/3
8 is 14 and -14
9 is 21 and -21
11 is | -75 |
i’m not sure about 13 but i believe it could be | -8 |
i hope this helped
8 0
3 years ago
Find the value of x at which the function has a possible relative maximum or minimum point.​ (Recall that e Superscript x is pos
shutvik [7]

Answer:

x= -11/4 is a maximum.

Step-by-step explanation:

Remember that a function has its critical points where the derivative equal zero. Therefore we need to compute the derivative of this function and find the points where the derivative is zero. Using the chain rule and the product rule we get that

f'(x)=  -e^{-4x}(11+4x)

And then we get that   if   11+4x = 0   then   x = -11/4 . So it has a critical point at   x = -11/4.

Now, if the second derivative evaluated at that point is less than 0 then the point is a maximum and if is greater than zero the point is a minimum.

Since

f''(x) = 8e^{-4x} (5+2x)\\f''(-11/4) = -239496.56

x= -11/4 is a maximum.

6 0
3 years ago
What are 3 input and output values for the equation y=-x^2+4?
pogonyaev
Here, The function:  y = -x² + 4
Input values would be x coordinates & output values would be y.

When, x = 1, y = (-1)² + 4 = 1 + 4 = 5
x = 2, y = (-2)² + 4 = 4 + 4 = 8
x = 3, y = (-3)² + 4 = 9 + 4 = 13

In short, Your Three input values are: 1, 2, 3
Three Output values are: 5, 8, 13

Hope this helps!
4 0
3 years ago
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