1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Archy [21]
3 years ago
5

A bricklayer uses the formula N=7LH to estimate the number of bricks, n, needed to build a wall that is L feet long and H feet h

igh. Which of the following correctly expresses L in terms of N and H?
A)L= 7/NH
B)L= H/7N
C)L= N/7H
D)L= N/7+H
SAT
2 answers:
IgorC [24]3 years ago
8 0
C is the answer and expresses the terms
ladessa [460]3 years ago
7 0

Answer: Option C

Explanation: Here we have the equation: N = 7LH

If we want to isolate L in one side of the equation, the steps are the following ones:

N = 7LH

First, divide both sides by the number 7, this does not affect equality.

N/7 = (7LH)/7 = LH

Now, we divide both sides of the equation by H.

N/(7H) = LH/H = L

Now we have the equation L = N/(7H), this mean that the right option is C.

You might be interested in
Anyone needs help with an assignments
hoa [83]

Answer:

Not right now, but thank you! :)

Explanation:

8 0
2 years ago
What piece of evidence does President Reagan use to logically conclude that the astronauts were aware of the dangers? previous a
Cloud [144]

The piece of evidence which President Reagan use to logically conclude that the astronauts were aware of the dangers was the previous accident on the ground

  • Former President Ronald Reagan gave a powerful speech concerning the Space Shuttle Challenger disaster which claimed the life of all crew members including a teacher.

  • The shuttle’s launch was said to have been delayed at least two times before the lunch date and due to pressure from the White House, it launch on January 28, 1986.

  • Due to this previous issues that happened on the ground not space, the shuttle malfunction and burst to flames and if this issues were handled before takeoff, this incident would not have happened.

The piece of evidence which President Reagan use to logically conclude that the astronauts were aware of the dangers was the previous accident on the ground

Learn more from

brainly.com/question/20609648

8 0
3 years ago
How are the emotional aspects of the fresco above expressed? a. Through the odd pose, the scale of the piece, as well as the con
larisa [96]

Answer:

The answer is A

Explanation:

3 0
2 years ago
Help?????!!!!!!!<br> Thank you
Lilit [14]
A,b, c and a because of how the forms are
8 0
3 years ago
Read 2 more answers
A linear machine is connected as shown in Fig. 1. The input source voltage Vin=10V, the internal resistance Rin=0.05Ω. The appli
galina1969 [7]

It is important to note that the direct of flow of the electricity current in the Linear Machine is anti-clockwise direction. The resultant effect of this is such that is stand at variance with the change in flux as force is going the right direction. See attached Image (Illustration I).

<h3>What is the magnitude of the current?</h3>

Recall that Force (f) = il xB

Given that Force (F) = 10N; and

Magnetic Field Density B = 0.5T

Hence,

10 = i x 0.2 x 0.5  

[Note that Width is converted to Meters from millimeters that is 200 mmm = 0.2m]

10 = 0.1i

i = 10/0.1

i = 100A

<h3>What is the Induced Voltage Across the metal bar?</h3>

Note that Vg = Vde + IR

Vg = 10 + 100 x 0.05

Vg = 10 + 5

Vg = 15v

<h3>What is the final speed of the metal bar?</h3>

The final speed of the bar is given as V

Recall that Induced Voltage is VB x L

That is:

15 = V x 0.5 x 0.2;

15 = 0.1 V

make V the subject of the formula:

V = 15/0.1

V = 150m/s

<h3>What is the status of the Machine? a motor or generator?</h3>

Given that the current being supplied is  in DC hence the machine is a generator. [Vdc x i]

<h3>What is the electric power of the source?</h3>

The electric power of the source is:

Vdc x i

= 10 x 100

= 1,000 watts

Learn more about electric current:

brainly.com/question/1100341
#SPJ1

8 0
2 years ago
Other questions:
  • The
    5·1 answer
  • Jeff is a bird watcher. Every year in the first week of spring, he visits the Hawk Mountain Sanctuary in Pennsylvania. Last year
    10·2 answers
  • How fast does the moon travel around the earth
    11·1 answer
  • Njknbkgkhvjhvhjvhjvjhbhj,vuljhvjhvuvhjvilyhvuljvihkvjvuvjviyv
    7·2 answers
  • The mainland of Southeast Asia is located on which type of landform? A. Tundra B. Plateau C. Desert D. Peninsula
    14·2 answers
  • The Heisenberg uncertainty principle most directly applies to which of the
    13·2 answers
  • Why is it important to distress?
    15·1 answer
  • The Bahama Islands were created by Question 9 options: Underwater mountains Underwater volcanoes Coral Reef
    7·1 answer
  • A species of mud snail was studied for five years. During this time, scientists observed the season in which they mated, the num
    13·1 answer
  • A bakery offers a sale price of $3. 50 for 4 muffins. What is the price per dozen.
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!