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Kaylis [27]
3 years ago
10

Answer correctly for brainliest and also get a thanks ! Don't answer if you don't know it please :)

Mathematics
2 answers:
finlep [7]3 years ago
6 0
We will use the eqn from the question 

y=19.42x+609.077
we know that x is the years after 2000 and we're given the year 2026 so we will do 2026-2000 to find how many years after 2000

2026-2000=26
so x=26
y=19.42(26)+609.077
y=1114.257 people will attend.
final answer would be 1114
Sophie [7]3 years ago
4 0
Plug in 20 for x (since x = the number of years since 2000 and the year is 2026)
19.43(26) + 609.077 = 1,114.257
You need to round to the nearest whole number, which makes 1,114.257--> 1,114.
This means that 1,114 people are expected to attend the fair in 2026.
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Can anyone help out with these two questions?
nikitadnepr [17]
To find f(3), plug x = 3 in f(x),
∴ f(3) = 3(3)+1 = 9+1 = 10
Therefore, the ordered pair is (3,10)

For second one,
plug x = 10 in f⁻¹(x), 

f⁻¹(10) = 10-1/3 = 9/3 = 3

Therefore, the ordered pair is (10,3)
5 0
2 years ago
How to find the average<br> of 78, 79, 87, 88, 101, 120, 130
crimeas [40]

Answer:

Add the numbers together and divide by the number of numbers. (The sum of values divided by the number of values).

Step-by-step explanation:

8 0
3 years ago
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A cone-shaped paper drinking cup is to be made to hold 27 cm of water. Find the height h and radius r of the cup that will use t
andreyandreev [35.5K]

Answer:

  • r = 2.632 cm
  • h = 3.722 cm

Step-by-step explanation:

The formula for the volume of a cone of radius r and height h is ...

  V = (1/3)πr²h

Then r² can be found in terms of h and V as ...

  r² = 3V/(πh)

The lateral surface area of the cone is ...

  A = (1/2)(2πr)√(r² +h²) = πr√(r² +h²)

The square of the area is ...

  T = A² = π²r²(r² +h²)

Substituting for r² using the expression above, we have ...

  T = π²(3V/(πh))((3V/(πh) +h²) = 9V²/h² +3πVh

We want to find the minimum, which we can do by setting the derivative to zero.

  dT/dh = -18V²/h³ +3πV

This will be zero when ...

  3πV = 18V²/h³

  h³ = 6V/π . . . . . multiply by h³/(3πV)

For V = 27 cm³, the value of h that minimizes paper area is ...

  h = 3∛(6/π) ≈ 3.7221029

The corresponding value of r is ...

  r = √(3V/(πh)) = 9/√(π·h) ≈ 2.6319242

The optimal radius is 2.632 cm; the optimal height is 3.722 cm.

_____

The second derivative test applied to T finds that T is always concave upward, so the value we found is a minimum.

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Interestingly, the ratio of h to r is √2.

8 0
3 years ago
Lucy throws a fair six sided dice . so like the letter that matches the probability of the dice landing on a number between 1 an
irakobra [83]

Answer:

Letter B matches the probability.

Step-by-step explanation:

Lucy throws a fair six sided dice.

Probability of the dice landing on a number between 1 and 6 = \frac{\text{Favorable outcome}}{\text{Number of events}}

= \frac{1}{6}

On a number line fraction \frac{1}{6} can be represented by,

An small section (A to B) will represent the fraction = \frac{1}{6}

Therefore, letter B will match the probability of a dice landing on a number between 1 and 6.

4 0
2 years ago
Joe has a 28 foot long board. He needs to cut it into 24 equal length part. H owmany feet long should each section of the board
34kurt
28/24 = 1.1(6)ft



Each section of the word should be 1.1(6)feet.

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2 years ago
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