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kiruha [24]
3 years ago
11

Prove this conjecture

Mathematics
1 answer:
steposvetlana [31]3 years ago
7 0

Answer:

See explanation

Step-by-step explanation:

Consider the natural number n(n+1)(n+2).

If n is the natural number, then n+1, \ n+2 are next two natural numbers, so numbers n,\ n+1 and n+2 are three consecutive numbers.

Given three consecutive natural numbers, one of them is always even number and one of them is always multiple of 3, so the product

n(n+1)(n+2)

is divisible by 6.

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What is the approximate value of x in the diagram below
Anon25 [30]

Answer:

x = 8 cm

Step-by-step explanation:

The first step in solving this problem is to determine which trig function applies.  The diagram shows that this triangle is a right triangle, that side x is opposite the 25-degree angle, and that the hypotenuse has a length of 18 cm.  

The sine function of an angle Ф is defined as the ratio of the opposite side to the hypotenuse.  In this case, sin Ф (or sin 25 degrees) equals x/(18 cm).

We need to determine the value of x.  Adapt the above equation to this particular situation:  sin 25 degrees = x/(18 cm).

To solve for x, multiply both sides of the most recent equation, above, by (18 cm).  The following results:  (18 cm)(sin 25 degrees) = x.

Next, use a calculator to find the value of sin 25 degrees:  It is 0.4226.

Then the desired value of x is (18 cm)(0.4226), or x = 7.61 cm.  This should be rounded off to x = 8 cm to reflect the level of accuracy of the given 18 cm.

5 0
3 years ago
Solve for r. 60 = -24 + 12r​
neonofarm [45]

Answer:

r = 7

Step-by-step explanation:

60 = -24 + 12r​

<u>+24  +24</u>

84 = 12r

84 ÷ 12 = r

7 = r

Check:

60 = -24 + 12r

-24 + 12(7)

-24 + 84 = 60

3 0
3 years ago
Read 2 more answers
What are the values of x and y?
Natasha_Volkova [10]
The answer is the second option
3 0
3 years ago
What is the length of segment NS? <br><br> 1 unit<br> 2 units<br> 4 units<br> 6 units
Masja [62]
Four units  is correct
4 0
2 years ago
Read 2 more answers
Fill in the missing values in the table and answer the question. Scale Distance on map Distance in miles 1/4 inch = 1 mile 2.5 i
Sliva [168]

Answer:

ao = 6 miles

a1 = 4 inches

a2 = 50 miles

Step-by-step explanation:

Scale Distance on map                          Distance in miles

1)  1/4 inch                                                   1 mile

   2.5 inches                                             10 miles

2)  1/2 inch                                                1 mile

     3.0 inches                                          <u> _6____miles </u>

3)   1 inch                                                 1 mile

      3.0 inches                                          3 miles

4)    1 inch                                                5 miles

   <u> </u><u> _4____ inche</u>s                                 20 miles

5)     1 inch                                               15 miles

       2.0 inches                                        30 miles

6)      1 inch                                             25 miles

         2.0 inches                                   <u>_50__</u>_____ miles


Thank you.

4 0
3 years ago
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