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3 years ago

6

1+4=5, 2+5=12, 3+6=21 , 8+11=? WHAT THE CORRECT ANSWER?/

1 answer:

wel3 years ago

8 0

<span>The pattern being formed is such that the number before the plus sign is being multipled to the sum of the number after the plus sign and 1. For example, 1 * (4 + 1) = 5. 2 * (5 + 1) = 12. 3 * (6 + 1) = 21. Applying the same principle for the given question, 8 * (11 + 1) = 8 * 12 = 96.Hope this helps. Let me know if you need additional help!</span>

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An airplane needs to head due north, but there is a wind blowing from the northeast at 50 km/hr. The plane flies at an airspeed

laiz [17]

Answer: $\theta =2.415^{\circ}$

Step-by-step explanation:

Using vector method to solve it

Resultant can be given by

$R^2=700^2+40^2+2\times 700\times 40cos135$

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R=671.12 Km/hr

The angle made by resultant with 700 km/hr is $\theta$

using sine rule

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$\theta =2.415^{\circ}$

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3 years ago

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3 years ago

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. For the function y= -5x2 - 10x + c, the vertex is (-1,8). What is c? F. -13 G. -3 - J. 13 H. 3

Marrrta [24]

Answer:

c=3

Step-by-step explanation:

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4 0

3 years ago

For every 15 students who run track, there are 7 students who play baseball. There are 112 more students

wolverine [178]

Answer:

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Step-by-step explanation:

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4 years ago

Read 2 more answers

First examples pt 1 no one answer

andrew11 [14]

Answer:

It takes the second worker 11 hours to do the job alone

Step-by-step explanation:

The problem tells you how to work it.

$\dfrac{1}{11}+\dfrac{1}{x}=\dfrac{2}{11}\\\\x+11=2x \qquad\text{multiply by 11x}\\\\11=x \qquad\text{subtract x}$

x = 11 tells you the second worker takes 11 hours to do the job alone.

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You can also work directly with the fractions. Subtract 1/11 and you have ...

1/x = 1/11

It should not be a real stretch to see that x=11. If you need, you can multiply both sides by 11x to get 11=x.

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3 years ago