HELP FOR BRAINLEST!!

Mathematics

1 answer:

Tju [1.3M]2 years ago

8 0

Answer:

I believe D is the correct answer.

Step-by-step explanation:

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Help me pls Ahhhh <br> Help me brainles

ruslelena [56]

Answer:

0.94, 1.03, 1.09, 1.1

Step-by-step explanation:

1.1

1.03

0.94

1.09

Those are the numbers in decimal form in sequence.

So it would be 0.94, 1.03, 1.09, then 1.1

I can't help on the graphing part, but thats the best you can pretty much get. Hope it helps :)

8 0

2 years ago

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Delvig [45]

The answer is 2 ° C because 5 + 4 + -3 /3 = 2 ° C

3 0

3 years ago

Forces of 9 lbs and 13 lbs act at a 38º angle to each other. Find the magnitude of the resultant force and the angle that the re

fiasKO [112]

Answer: $R=20.84\ lb\quad 22.57^{\circ},15.43^{\circ}$

Step-by-step explanation:

Given

Two forces of 9 and 13 lbs acts $38^{\circ}$ angle to each other

The resultant of the two forces is given by

$\Rightarrow R=\sqrt{a^2+b^2+2ab\cos \theta}$

Insert the values

$\Rightarrow R=\sqrt{9^2+13^2+2(9)(13)\cos 38^{\circ}}\\\Rightarrow R=\sqrt{81+169+184.394}\\\Rightarrow R=\sqrt{434.394}\\\Rightarrow R=20.84\ lb$

Resultant makes an angle of

$\Rightarrow \alpha=\tan^{-1}\left( \dfrac{b\sin \theta}{a+b\cos \theta}\right)\\\\\text{Considering 9 lb force along the x-axis}\\\\\Rightarrow \alpha =\tan^{-1}\left( \dfrac{13\sin 38^{\circ}}{9+13\cos 38^{\circ}}\right)\\\\\Rightarrow \alpha =\tan^{-1}(\dfrac{8}{19.244})\\\\\Rightarrow \alpha=22.57^{\circ}$