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weeeeeb [17]
1 year ago
15

A person is connecting heat trace cable on pipe at the jobsite. The cable he or she is using is rated 2.5 watts/foot. How many f

eet of this cable can be installed on a 120-volt/15-amp circuit?
Mathematics
1 answer:
maksim [4K]1 year ago
7 0

The length of the cable will be 6 feet which can be installed  120-volt/15-amp circuit.

<h3>What is an ampere circuit?</h3>

Ampere's circuital law states that “the line integral of the magnetic field surrounding closed-loop equals to the number of times the algebraic sum of currents passing through the loop.”

Here we have a cable rating of 120-volt/15-amp so if the 1-ampere circuit means 1 watt per foot cable will be used for the 1-ampere circuit.

A Total of the 15-ampere circuit means 15 watts needed so we are using 2.5 watts per foot.

\rm Length \ of\  Cable =\dfrac{15}{2.5}=6 \ \ foot

Hence the length of the cable will be 6 feet which can be installed  120-volt/15-amp circuit.

To know more about the ampere circuit follow

brainly.com/question/14233513

#SPJ1

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The equation for line r can be written as y=-1/4x+3. Line s which is parallel to lone r includes the point (-4,3). What is the e
MaRussiya [10]

Answer:

y=-\frac{1}{4}x+2

Step-by-step explanation:

Hi there!

<u>What we need to know:</u>

  • Linear equations are typically organized in slope-intercept form:y=mx+b where m is the slope and b is the y-intercept (the value of y when x is 0)
  • Parallel lines always have the same slope

<u>1) Determine the slope of line S using line R (m)</u>

y=-\frac{1}{4} x+3

We can identify clearly that the slope of the line is -\frac{1}{4}, as it is in the place of m. Because parallel lines always have the same slope, the slope of line S would also be -\frac{1}{4}. Plug this into y=mx+b:

y=-\frac{1}{4}x+b

<u>2) Determine the y-intercept of line S (b)</u>

y=-\frac{1}{4}x+b

Plug in the given point (-4,3) and solve for b

3=-\frac{1}{4}(-4)+b\\3=1+b

Subtract 1 from both sides to isolate b

3-1=1+b-1\\2=b

Therefore, the y-intercept is 2. Plug this back into y=-\frac{1}{4}x+b:

y=-\frac{1}{4}x+2

I hope this helps!

6 0
2 years ago
Write ACUTE, RIGHT, OBTUSE, STRAIGHT or REFLEX for each of the following: ( 5 marks)
soldier1979 [14.2K]

Answer:

a. obtuse angle

b. right angle

c. reflex angle

d. straight

e. acute angle

3 0
3 years ago
What is an equation in point slope form for the given point and slope? Point: (7,4) Slope: 6
svlad2 [7]
Y-y1=m(x-x1) for slope=m
point is (x1,y1)

pont s (7,4)
slope is 6
x1=7
y1=4

y-4=6(x-7)

2nd one is correct answer
4 0
3 years ago
HELP PLEASE<br><br><br> SHOW WORK<br> WILL MARK BRAINLIEST
defon

I've attached a photo of the solution below. Hope it helps!

3 0
2 years ago
Which expression is equivalent to *picture attached*
Sedbober [7]

Answer:

\sum_{n=3}^{20}(n(n+1))=\sum _{n=3}^{20} n^2+ \sum _{n=3}^{20} n

Step-by-step explanation:

Given expression : \sum_{n=3}^{20}(n(n+1))

Solving further :

\Rightarrow \sum_{n=3}^{20}(n^2+n)

\Rightarrow \sum _{n=3}^{20} n^2+ \sum _{n=3}^{20} n

So, \sum_{n=3}^{20}(n(n+1))=\sum _{n=3}^{20} n^2+ \sum _{n=3}^{20} n

So, The given expression is equivalent to Option A

So, Option A is the answer

7 0
3 years ago
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