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
miss Akunina [59]
3 years ago
14

The length of your classroom is about 3.5 x 10^2 inches. If the hallway is ten times as long as the classroom, what is the lengt

h of the hallway, expressed in scientific notation?
Mathematics
1 answer:
tatuchka [14]3 years ago
8 0

Answer:

3.5x10^3

Step-by-step explanation:

3.5x10^2 = 350

350x10 = 3500

3500 = 3.5x10^3

You might be interested in
I need measures for both angle 2 and 3 please help
olchik [2.2K]

Answer:

44 and 22

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
PLEASE HELP ME I NEED HELP ASAP!!!! PLEASE HELP ON A AND B
valina [46]

Answer:

<h2>a) x = 16 and y = 6</h2><h2>b) P = 864 in</h2>

Step-by-step explanation:

a)

The opposite sides of the rectangle are of equal length.

Therefore we have the system of equations:

\left\{\begin{array}{ccc}3y=2+x&\text{subtract 2 from both sides}\\3x=2+x+5y&\text{subtract x from both sides}\end{array}\right\\\\\left\{\begin{array}{ccc}3y-2=x&(*)\\2x=2+5y&(**)\end{array}\right

Substitute from (*) to (**):

2(3y-2)=2+5y\qquad\text{use distributive property}\\\\(2)(3y)+(2)(-2)=2+5y\\\\6y-4=2+5y\qquad\text{add 4 to both sides}\\\\6y=6+5y\qquad\text{subtract 5y from both sides}\\\\\boxed{y=6}

Put the value of y to (*):

x=3(6)-2\\\\x=18-2\\\\\boxed{x=16}

b)

Calculate the width and the length:

3x = 3(16) = 48\\\\3y = 3(6) = 18

The perimeter:

P = 2w + 2l\\\\P = (48)(18)=864\ in

8 0
3 years ago
Please answer this in two minutes
garik1379 [7]

Answer:

VW = 1

Step-by-step explanation:

Tan 45 = 4/VW

VW = 4/Tan 45 = 1

5 0
3 years ago
What polynomial must be added to x^2-2x+6 so that the sun is 3x^2+7x?
ollegr [7]
When you ask "what do you add to A to get B, you solve it by subtracting.
For example, what do you add to 5 to get 13?
Subtract 13 - 5 = 8
The answer is you add 8 to 5 to get 13.

Now you need to do the same with your polynomials.
What do you add to <span>x^2 - 2x + 6 to get 3x^2 + 7x?

To find the answer, subtract

(3x^2 + 7x</span>) - (x^2 - 2x + 6)
7 0
3 years ago
How to solve numbers 17-28 Supplementary Problems
Virty [35]
The answers to the questions

8 0
3 years ago
Other questions:
  • Find the product: 6,370 (86)
    12·1 answer
  • -3/2 divided by 1/4
    14·2 answers
  • Which of the following best describes the equation below?
    7·1 answer
  • Hey guys in the middle of my final! please help? will mark the brainiest + 30 points !
    6·1 answer
  • For a school picnic, leslie ordered a box of fresh-baked gingerbread cookies and sugar cookies. She got 60 cookies in all. 15 of
    6·1 answer
  • A line with a slope of 0 contains the point (3,4) . The point -2,? is also on the line. What is the missing y-coordinate?
    15·1 answer
  • Choose all pairs of points that are reflections of each other across both axes.
    12·1 answer
  • Please select the best answer from the choices provided<br>A<br>B<br>C<br>D​
    13·2 answers
  • An Apple Watch was marked down 1/9 of the original price. If the sales price was $224 what is the original price?
    13·2 answers
  • Liam paid $13. 00 at a department store for 5 pairs of socks. When the number of pairs of socks is represented by p and the tota
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!