A 215-inch pipe is cut into two pieces. One piece is four times the length of the other. Find the length of the shorter piece.

Anettt [7]

The slope is three because the x goes up 1 and y goes up 3 so it’s 3/1 which makes the slope 3

4 0

2 years ago

A welder requires 18 hours to do a job. After the welder and an apprentice work on a job for 6 hours, the welder moves to anothe

Dafna1 [17]

Answer:

the apprentice can complete the job in 30 hours by working alone.

Step-by-step explanation:

Given:

Number of hours required to complete a job by welder = 18 hours

Number of hours welder work on job = 6 hours.

Number of hours required by apprentice to complete the job = 14 hours

We need to find Number of hours required to complete a job by apprentice alone.

Solution:

Let Number of hours required to complete a job by apprentice alone be 'a'.

Also let the job completed be = 1

Now we know that ;

Time required on job is equal to sum of Number of hours welder work on job and Number of hours required by apprentice to complete the job.

framing in equation form we get

Time required on job = $6+14 =20\ hrs$

Now we can say that;

each has done a fraction of the work so we will add to two fraction as number of hours of work done by Total number of hours required to do the work to complete 1 job.

so we can frame the equation as;

$\frac{6}{18}+\frac{20}{a}=1$

By reducing the fraction we get;

$\frac{1}{3}+\frac{20}{a}=1$

Now we will make the denominator common to solve the fraction we get;

$\frac{1\times a}{3\times a}+\frac{20\times3}{a\times3}=1\\\\\frac{a}{3a}+\frac{60}{3a}=1$

Now denominators are same so we will solve the numerator we get;

$\frac{a+60}{3a}=1$

Multiplying both side by 3a we get;

$\frac{a+60}{3a}\times3a=1\times 3a\\\\a+60=3a$

Combining the like terms we get;

$3a-a=60\\\\2a=60$

Dividing both side by 2 we get;

$\frac{2a}{2}=\frac{60}{2}\\\\a=30\ hrs$

Hence the apprentice can complete the job in 30 hours by working alone.

4 0

2 years ago

ANSWER PLEASE QUICK!! I AM ON A TIMERRR

Fynjy0 [20]

Answer:

smaller x is to the power of 2 3x is the larger.

Step-by-step explanation:

5 0

2 years ago

An observation deck extends 202 feet out above the valley. The deck sits 152 feet above the valley floor. If an object is droppe

OleMash [197]

Answer:

Step-by-step explanation:

Given the height of the object as it drops from the observation deck expressed as;

h= -16t^2+152

To determine the the time it will take the object to be 8 feet above the valley floor, we will substitute h = 8 into the equation and calculate t as shown;

8 = -16t^2+152

subtract 8 from both sides

8-8 = -16t^2+152-8

0 = -16t^2+144

0-144 = -16t^2

-144 = -16t^2

16t^2 = 144

Divide both sides by 16;

16t^2/16 = 144/16

t^2 = 9

t = √9

t = 3seconds

Hence it will take 3 seconds for the object to be 8 feet above the valley floor

6 0

2 years ago

Regression analysis involving one dependent variable and more than one independent variable is known as a. linear regression. b.

Greeley [361]

Answer:

<h3>The Option B) Multiple regression is correct</h3><h3>Regression analysis involving one dependent variable and more than one independent variable is known as <u>multiple regression.</u></h3>

Step-by-step explanation:

Given that regression analysis involving one dependent variable and more than one independent variable

For : Regression analysis involving one dependent variable and more than one independent variable is known as <u>multiple regression</u>

In statistics, a linear regression is a linear relationship between a dependent variable and one or more independent variables.

In statistics for more than one independent variable and with one dependent variable in regression analysis , then the regression is called as multiple regression.

Therefore Option B) Multiple regression is correct

<h3>Regression analysis involving one dependent variable and more than one independent variable is known as <u>multiple regression</u>.</h3>

7 0

3 years ago

A 215​-inch pipe is cut into two pieces. One piece is four times the length of the other. Find the length of the shorter piece.

A 215-inch pipe is cut into two pieces. One piece is four times the length of the other. Find the length of the shorter piece.