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3 years ago

14.87 +3.65 ANSWER THE QUESTION

Mathematics

2 answers:

fenix001 [56]3 years ago

6 0

14.87 + 3.65 = 18.52

Hunter-Best [27]3 years ago

6 0

Answer:

18.52

Step-by-step explanation:

14.87+3.65

14.87+3.65= 18.52

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Prove that one of every three consecutive positive integer is divisible by 3

Inessa05 [86]

Hello :
all n in N ; n(n+1)(n+2) = 3a a in N or : <span>≡ 0 (mod 3)
1 ) n </span><span>≡ 0 ( mod 3)...(1)

n+1 </span>≡ 1 ( mod 3)...(2)
  n+2 ≡ 2 ( mod 3)...(3)
by (1), (2), (3) : n(n+1)(n+2) ≡ 0×1×2   ( mod 3) : ≡ 0 (mod 3)
2) n ≡ 1 ( mod 3)...(1)

n+1 ≡ 2 ( mod 3)...(2)
  n+2 ≡ 3 ( mod 3)...(3)
by (1), (2), (3) : n(n+1)(n+2) ≡ 1×2 × 3  ( mod 3) : ≡ 0 (mod 3) , 6≡ 0 (mod)
3) n  ≡ 2 ( mod 3)...(1)

n+1 ≡ 3 ( mod 3)...(2)
  n+2 ≡ 4 ( mod 3)...(3)
by (1), (2), (3) : n(n+1)(n+2) ≡ 2×3 × 4  ( mod 3) : ≡ 0 (mod 3) , 24≡ 0      (mod3)

5 0

3 years ago

IF A MAN TRAVELS 380 METERS IN 20 SECONDS, HOW FAR DOES HE TRAVELNIN 3 SECONDS?

KATRIN_1 [288]

Answer:19

Step-by-step explanation: 380 divide by 20 is 19

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3 years ago

What is the function of X?

Stels [109]

D the sent greater than or equal to 1

4 0

3 years ago

The figure below shows a straight line AB intersected by another straight line t:

BaLLatris [955]

When two straight lines intersect, the pairs of nonadjacent angles in opposite posi-tions are known as vertical angles.

If a segment AB is intersected by a transversal labeled t, then ∠1 and ∠3 and ∠2 and ∠4 are vertically angles formed by the transversal t on the segment AB.

Angles ∠1 and ∠2 can be described as adjacent and supplementary angles, so

$m\angle 1+m\angle 2=180^{\circ}$ .

Angles ∠3 and ∠2 can be also described as adjacent and supplementary angles, so

$m\angle 3+m\angle 2=180^{\circ}$ .

Subtract from the first equation the second equation:

$m\angle 1+m\angle 2-(m\angle 3+m\angle 2)=180^{\circ}-180^{\circ},\\ m\angle 1-m\angle 3=0,\\ m\angle 1=m\angle 3$ .

Similarly you can prove that $m\angle 2=m\angle 4$ .

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4 years ago

What is the approximate diagonal distance from one corner of a 3 inch by 5 inch index card to the opposite corner

77julia77 [94]

Answer:

5.83 inches

Step-by-step explanation:

The card is a rectangular shaped object, drawing a diagonal from one corner to the other, divides the rectangle into two right angled triangles with the diagonals as the hypothenuse.

Using Pythagoras theorem.

c^2 = a^2 + b^2

Given;

Side a = 3

Side b = 5

Substituting the given values;

c^2 = 3^2 + 5^2

c = √(9+25)

c = √34

c = 5.83 inches

7 0

4 years ago