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AveGali [126]
3 years ago
13

True or false I’m confused ?

Mathematics
1 answer:
larisa [96]3 years ago
6 0
The answer would be false
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What store has the best deal? Tae Store:4 cans for $2.48, Be Cool Store:5 cans for $3.00 or Not Today Store:59 cents per can?
tino4ka555 [31]
2.48 divided by 4 =.62 a can. Tae store

3.00 divided by 5= .60 a can. BE cool store

.59 not today store

The best is not today store at .59 a can

8 0
3 years ago
Prove the statement holds for all positive integers:<br><br> 2 + 4 + 6 + ... + 2n = n² + n
crimeas [40]

Proving a relation for all natural numbers involves proving it for n = 1 and showing that it holds for n + 1 if it is assumed that it is true for any n.

The relation 2+4+6+...+2n = n^2+n has to be proved.

If n = 1, the right hand side is equal to 2*1 = 2 and the left hand side is equal to 1^1 + 1 = 1 + 1 = 2

Assume that the relation holds for any value of n.

2 + 4 + 6 + ... + 2n + 2(n+1) = n^2 + n + 2(n + 1)

= n^2 + n + 2n + 2

= n^2 + 2n + 1 + n + 1

= (n + 1)^2 + (n + 1)

This shows that the given relation is true for n = 1 and if it is assumed to be true for n it is also true for n + 1.

<span>By mathematical induction the relation is true for any value of n.</span>

6 0
3 years ago
A plane is approaching an aircraft carrier at 25° angle of elevation from 3.2 miles away how far above sea level is the plane
s2008m [1.1K]

Answer:

Height\approx 1.35\ miles

Step-by-step explanation:

The angle of elevation=25\textdegree

It is 3.2\ miles away from the point.

If we imagine a right  triangle having an angle 25\textdegree.

Hypotenuse=3.2, Opposite=Height from sea level(h)

\sin 25=\frac{opposite}{hypotenuse}\\\\\sin 25=\frac{h}{3.2}\\\\h=3.2\times \sin 25\\\\h=3.2\times 0.4226\\\\h=1.3524\approx 1.35\ miles

8 0
3 years ago
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Myrna is driving at a constant rate in her car if she travels 135 miles in 3 hours how far would you travel in 8 hours
Romashka-Z-Leto [24]
360 miles in 8 hours you do 135 divided by 3 which gives you 45 then you do 45 times 8 giving you 360 I hope I helped and I’m sorry if just didn’t give you the correct answer I tried.
3 0
3 years ago
Subtract: (7x^{3}-5x^{2}+4)-(-6x^{3}-8x^{2}+3)
barxatty [35]

Answer:

Simplify the expression.

13 x 3 + 3 x 2 + 1

Step-by-step explanation:

4 0
3 years ago
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