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
sesenic [268]
3 years ago
7

Please try this, it's a basic proof that I don't know how to do. Thanks!

Mathematics
1 answer:
avanturin [10]3 years ago
7 0
A cube, is made off 6 squarial faces, so all faces on that cube, are squares, the front, back, left, right, top and bottom.

a square has all equal sides, and also all right angles, so all angles in a square are 90°.  Let's say the sides are "x" long.

now, if we run a plane on that cube diagonally, check the picture below, the diagonal side at the bottom, by usin the 45-45-90 rule as you see it there, will be x√2.

let's keep in mind that, "x" is opposite side of that angle θ, and then x√2 will be the adjacent side of it.

and we can use those two to get the tangent and then the inverse tangent to get the value, as you see it in the picture.

if you need the angle in radians, run the inverse tangent again, just make sure your calculator is in radians mode.

You might be interested in
Complete the diamond and submit your answer as a file upload.<br> 9<br> -10
Novay_Z [31]

Answer:

-1?

Step-by-step explanation:

4 0
2 years ago
uhammad, a shipping and receiving clerk, uses 1 yard, 2 feet, 4 inches of twine to wrap each carton he packs. He has to pack 29
irina1246 [14]

Answer

Find out the how much twine will he needs to pack 29 cartons today .

To proof

As given

uhammad, a shipping and receiving clerk, uses 1 yard, 2 feet, 4 inches of twine to wrap each carton he packs.

As given in the question

Convert the answer to larger units .

As between  yard is the largest unit between yard, feet and inches.

1 inches = \frac{1}{36} yard

and

1 feet = \frac{1}{3} yard

Convert 2 feet into yard

=\frac{2}{3}

Convert 4 inches into yard

= \frac{4}{36}

twine to wrap each carton packs

= 1 + \frac{2}{3} + \frac{4}{36}

L.C.M of (3 , 36) = 36

than the equation becomes

=\frac{36 +2\times 12 + 4}{36}

= \frac{64}{36}

=1.77777778 yard

Now twine to wrap pack 29 cartons  = 29× 1.77777778

                                                             = 51.5555556 yard


Now twine to wrap pack 29 cartons is 51.55 yard ( approx)

Hence proved  

6 0
3 years ago
What is the area of this figure? ​
Delvig [45]

Answer:

33

Step-by-step explanation:

5 0
2 years ago
9(2a+2) equivalent expression
ollegr [7]
Multiply 9 by 2a and 2, and you get 18a + 18. Another equivalent expression would be 18(a+1), which you can get by factoring the above answer.
3 0
3 years ago
1. Rewrite the expression. Use an exponent, rather than repeated multiplication. (–4)(–4)
AlekseyPX
-4^2 is the same as -4*-4

-4*-4=16

-4^2= 16 

-4^2 is the exponent.

I hope this helps!
~kaikers
4 0
3 years ago
Other questions:
  • Suppose that each time Diana Taurasi takes a 3-point shot, she has a 37% probability of success, independent of all other attemp
    13·1 answer
  • A video game costs $29.35 at one store and $32.79 at another store. Generate two equivalent expressions and then find how much m
    12·1 answer
  • Support requests arrive at a software company at the rate of 1 every 30 minutes. Assume that the requests arrive as events in a
    15·1 answer
  • Y=2 when x=8<br> &amp;<br> y=-3 when x=1
    15·1 answer
  • 5 = g/8 g = what is the g
    15·1 answer
  • Whats is 1 - 1 =<br><br> it is 1 (:
    7·2 answers
  • Help please and no links!!!!
    15·1 answer
  • Plz answer, in the question.
    14·1 answer
  • 8k - 3 - 10 ( I have to simplify it)
    6·1 answer
  • Help ASAP (find the area)
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!