All categories

3 years ago

I need help plz i dont know

Mathematics

1 answer:

ICE Princess25 [194]3 years ago

5 0

Answer:

Hey! Ok so the height is C.10 ft.

Step-by-step explanation:

So to find the height I have to do

h=Vlw =540 12·4.5=10

So therefore its 10

Hope you have a great day! I'm Eve btw Hoped this helped and consider marking this brainiest!

You might be interested in

What is the ratio 8 to 14 as a fraction in dimplest form

irga5000 [103]

Answer:

$\frac{4}{7}$

Step-by-step explanation:

8:14

divide by 2

4:7

so 4/7

7 0

3 years ago

Given the third-order differential equation z′′′+2z′′−4z′−8z=0, find the general solution. Enter your solution as z(x)=... . In

Scorpion4ik [409]

Answer: $z(x) = c_{1} e^{2x} +c_{2} e^{-2x} + c_{3} xe^{-2x}$

Step-by-step explanation:

This is a homogeneous linear third-order differential equation

z′′′+2z′′−4z′−8z=0 so the

FIRST STEP is to find the characteristic equation and its roots

$m^{3} +2m^{2} -4m -8 = 0$

Using the method of finding roots of a polynomial (using m = 2) would provide the solution below

(m-2)(m+2)(m+2)=0; m = 2 and m = -2 (repeated twice)

SECOND STEP is to write the general solution with the arbitrary constants.

The general solution based on the roots and the using x as the independent variable would provide

$z(x) = c_{1} e^{2x} +c_{2} e^{-2x} + c_{3} xe^{-2x}$

*It should be noted that when the characteristic equation has a repeated root, the general equation form becomes similar to the last part of the answer*

6 0

3 years ago

The gas tank of Tyrell's truck holds 19.8 gallons. when the tank empty, Tyrrell fills it with gas that costs $3.65 per gallon. a

Tems11 [23]

It is given in the question that

The gas tank of Tyrell's truck holds 19.8 gallons. when the tank empty, Tyrrell fills it with gas that costs $3.65 per gallon.

It means cost of one gallon of gas is $3.65 .

And the tank hold 19.8 gallon . So cost of 19.8 gallon is

$= $3.65*19.8 = $72.27$

Therefore about $72.27 it will cost to fill the tank .

8 0

3 years ago

Two pools are being filled with water. To start, the first pool contains 890 liters of water and the second pool is empty. Water

mars1129 [50]

Let x=amount of time it takes both pipes draining together to empty the pool
First pipe empties at the rate of 540,000/150=3600 liters/min
Second pipe empties at the rate of 540,000/225=2400 liters/min
Together, both pipes empties at the rate of 3600+2400=6000 liters/min, so our equation to solve is:
6000*x=540000

7 0

4 years ago

Julie wanted to find out the approximate percentage of non-traditional female college students at public universities. She decid

lawyer [7]

To solve this question, we need to understand sample and population concepts.

From this, the answer is:

The 25 females that Julie interviews are the sample, and all female college students at state universities are the population.

Example:

I want to estimate the proportion of New York state residents who are Buffalo Bills fans. So i ask, lets say, 1000 randomly selected New York state residents whether they are Buffalo Bills fans, and expand this to the entire population of New York State residents, which is the population of the study.

The sample will be: 1000 randomly selected New York state residents

The population will be: All New York state residents

In this question:

Sample: 25 females from each university in her state.

Population: All female college students in her student.

Thus, the correct statement is:

The 25 females that Julie interviews are the sample, and all female college students at state universities are the population.

For a similar example, you can check brainly.com/question/24331410

7 0

3 years ago