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3 years ago

Really desperate cant find anyone to help me would really appreciate any help i can get

Mathematics

1 answer:

oksano4ka [1.4K]3 years ago

3 0

Let the model for the change in water vapor be

y = x^3 − 8x^2 + 15x

to find the x intercepts we can factor this expression

x^3 − 8x^2 + 15x = x(x−3)(x−5)

the x intercepts are 0, 3, 5

Hope this helps!

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Answer these series of events

Alchen [17]

Answer: A= 34

B= 25

C= -30

D= -25

E= -1.3

F= 0.6 repeating or rounded to the nearest tenth place 0.7

Hope this helps!

Step-by-step explanation:

4 0

3 years ago

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at maximum speed, an airplane travels 1720 miles against th wind in 5 hours. Flying with the wind, the plane can travel the same

iragen [17]

Answer:

x = 387

Step-by-step explanation:

The wind acts in the opposite direction to the plane when the time is longer.

The wind acts in the same direction as the plane when the time is shorter.

Equation

d = r*t

Givens

d = 1720
x = plane's speed
y = wind speed
t1 = 5 hours
t2 = 4 hours.

Substitution

d = (x + y) * t
1720 = (x + y) * 4
1720 = (x - y) * 5

Since the two distances are the same, you can equate the right hand sides.

(x + y) * 4 = (x - y)*5 Remove the brackets.
4x + 4y = 5x - 5y Add 5y to both sides
4x + 4y + 5y = 5x - 5y + 5y Combine all the terms.
4x + 9y = 5x Subtract 4x from both sides
9y + 4x - 4x = 5x - 4x Combine
9y = x

Now use one of the given equations with the distance

1720 = (x + y)*4 Substitute 9y for x
1720 = (9y + y) * 4 Combine
1720 = 10y * 4 Multiply the right
1720 = 40y Divide by 40
1720/40 = 40y/40 Do the division
43 = y y = wind speek
9y = x x = 9*y
9*43 = x
x = 387 miles per hour.

4 0

4 years ago

What kind of solution is x(5-2)=4x-x

Furkat [3]

Answer:

All Real Answers / Infinite Solutions

Step-by-step explanation:

Distribute: 5x-2x = 4x-x

Simplify: 3x=3x

Subtract 3x from each side: 0=0

8 0

3 years ago

A firm has a fixed cost of $500 in its first year of operation. When the firm produces 100 units of output, its total costs are

HACTEHA [7]

Answer:

option (a) $250

Step-by-step explanation:

Data provided in the question:

Fixed cost = $500

For 100 units produced Total cost = $3,500

For 101 units produced, Total cost = $3,750

Now,

Marginal cost is calculated as:

Marginal cost = $\frac{\textup{Total change in cost of producing more goods}}{\textup{Total change in produced goods}}$

thus,

Marginal cost = $\frac{\textup{Total cost of 101 units - Total cost of 100 units}}{\textup{101-100}}$

Marginal cost = $\frac{\textup{3,750-3,500}}{\textup{1}}$

Marginal cost = $250

Hence,

The correct answer is option (a) $250

7 0

3 years ago

CAUSE SHE TWERK, CAUSE SHE TWERK, CAUSE SHE TWERK, TWERK, TWERK!!!!!!!!! TURN UP B!TÇH!!!!!!!!!!!!

EleoNora [17]

Answer:

'scuse me sir? haha

Step-by-step explanation:

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3 years ago

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