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3 years ago

Please help!!!!!!!!!

Mathematics

1 answer:

Effectus [21]3 years ago

5 0

Answer:the second one goes to the first box the third one to the second and the first one to to the last box

Step-by-step explanation:I hope it helps:)

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Sari has a bag containing 6 half dollars. What is the mass of half dollars in Sari's bag when half dollars weighs 11.34 grams?

Fittoniya [83]

Mass of one half dollars = 11.34g
therefore mass of six half dollars = 6*11.34g
=68.04g
Ans : mass of 6 half dollars = 68.04g

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3 years ago

The ratio of the surface areas of two spheres is 1:9.

lapo4ka [179]

Answer:

Step-by-step explanation:

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2 years ago

in the final event of a track meet, 6 runners run a 100 meter dash. A) How many possible arrangements are there for the medal wi

ohaa [14]

6 runners, 3 medals, how many ways to give them? well, runner say 2 could get gold or not, bronze or not and silver or not, and so can any other runnner, and the order "does matter", it makes a distinction, thus, is a Permutation

$\bf _nP_r=\cfrac{n!}{(n-r)!}\qquad \qquad _6P_3=\cfrac{6!}{(6-3)!}$

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3 years ago

Read 2 more answers

Filipemarcosdesouza

Margaret [11]

Answer:

noted, thanks for the note

7 0

3 years ago

Read 2 more answers

Find the exact value of cos theta, given that sin thetaequalsStartFraction 15 Over 17 EndFraction and theta is in quadrant II.

vova2212 [387]

Answer:

$cos \theta = -\frac{8}{17}$

Step-by-step explanation:

For this case we know that:

$sin \theta = \frac{15}{17}$

And we want to find the value for $cos \theta$ , so then we can use the following basic identity:

$cos^2 \theta + sin^2 \theta =1$

And if we solve for $cos \theta$ we got:

$cos^2 \theta = 1- sin^2 \theta$

$cos \theta =\pm \sqrt{1-sin^2 \theta}$

And if we replace the value given we got:

$cos \theta =\pm \sqrt{1- (\frac{15}{17})^2}=\sqrt{\frac{64}{289}}=\frac{\sqrt{64}}{\sqrt{289}}=\frac{8}{17}$

For our case we know that the angle is on the II quadrant, and on this quadrant we know that the sine is positive but the cosine is negative so then the correct answer for this case would be:

$cos \theta = -\frac{8}{17}$

5 0

3 years ago

Please help!!!!!!!!!​

Please help!!!!!!!!!