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Greeley [361]
3 years ago
7

In school the libary gets painted every 2 years, the cafeteria every 3 years and classrooms every 4 years. If they were painted

in 2010, when is the next time they will all be painted in the same year??
A: 2012

B: 2034

C: 2022

D: 2019

please help no one will help me and I can't handle getting another F in math ;^;
Mathematics
2 answers:
yarga [219]3 years ago
6 0
In a problem like this, you're looking for the lowest common multiple. Each number needs to bet multiplied into the smallest number where they all fit. So in this case, 12 years later because 12 is the lowest common multiple. Therefore, in 2022
rewona [7]3 years ago
5 0
The answer is C. hope this helps
The person before me was correct
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Which system of equations would have the same solution as the system: x+y=5 3x+2y=10
Alex73 [517]
{ x + y = 5     * ( -3 )
  3x + 2y = 10

- 3 x - 3 y = - 15
  3 x + 2y = 10
_______________
          - y = - 5  * ( -1 )
 
           y = 5

For x :

3 x + 2 y = 10

3 x + 2 * ( 5 ) = 10

3 x + 10 = 10

3 x = 10 - 10

3 x = 0

x = 0 / 3

x = 0

X = 0 and y = 5

hope this helps!





5 0
3 years ago
Find the length of a square whose area is 0.0084m​
TiliK225 [7]

Answer:

.091651514m

Step-by-step explanation:

The area of a square is found by

A = s^2 where s is the side length

.0084 = s^2

Take the square root of each side

\sqrt{.0084} = \sqrt{s^2}

.091651514 = s

4 0
2 years ago
Read 2 more answers
what is each number written in scientific notation? 1,220,000,000 --------------------------------------------------------------
MakcuM [25]
1.22x10^9 or 1.22G (for Giga = 10^9)
5 0
4 years ago
Sin 1 + sin 2 + sin3 .................+ sin 360 = ?
lesya [120]

Assuming that arcs are given in degrees, call S the following sum:

S = sin 1° + sin 2° + sin 3° + ... + sin 359° + sin 360°


Rearranging the terms, you can rewrite S as

S = [sin 1° + sin 359°] + [sin 2° + sin 358°] + ... + [sin 179° + sin 181°] + sin 180° +
   + sin 360°

S = [sin 1° + sin(360° – 1°)] + [sin 2° + sin(360° – 2°)] + ...+ [sin 179° + sin(360° – 179)°]
   + sin 180° + sin 360°          (i)


But for any real k,

sin(360° – k) = – sin k


then,

S = [sin 1° – sin 1°] + [sin 2° – sin 2°] + ... + [sin 179° – sin 179°] + sin 180° + sin 360°

S = 0 + 0 + ... + 0 + 0 + 0        (... as sin 180° = sin 360° = 0)

S = 0


Each pair of terms in brackets cancel out themselves, so the sum equals zero.

∴   sin 1° + sin 2° + sin 3° + ... + sin 359° + sin 360° = 0          ✔


I hope this helps. =)


Tags:  <em>sum summatory trigonometric trig function sine sin trigonometry</em>

4 0
3 years ago
Is 6.041 bigger than 6.401
evablogger [386]
No it isn't

6.041
6.401

As you can see 0 isn't bigger than 4 in the tenths place
4 0
3 years ago
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