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ELEN [110]
3 years ago
14

HELP!!!! CLICK ON THE PICTURE! THANK YOU

Mathematics
1 answer:
zloy xaker [14]3 years ago
7 0
19/25 is the answer 
hope i helped!

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Wirte the expression the quotient of the quantity k minus 8 and m
umka21 [38]

Answer:

k - m - 8

Step-by-step explanation:

pretty sure you just move the -8 to the back.

8 0
3 years ago
Kevin can travel 22 1/2 miles in 1/3 hour .What is the average speed in miles per hour?
pochemuha
He would travel 67 1/2 miles in an hour.
3 0
3 years ago
Make y the subject of the formula.
3241004551 [841]

Answer:

b

Step-by-step explanation:

because it is the correct one

7 0
3 years ago
Read 2 more answers
Find the exact value of the given expression.<br> sin(2cos^-1(5/13))
xeze [42]

Answer:

+120/169 or -120/169

Step-by-step explanation:

  • let cos^{-1}[\frac{5}{13}  ] = \alpha

where, alpha is some angle that satisfies the assumed condition.

  • so, cos\alpha= 5/13

[ taking cos to the other side  or applying cos on both sides]

  • now, substitute this in the given expression
  • sin(2cos^-1(5/13)) = sin(2\alpha )

as sin\beta =  + or -\sqrt{1-(cos\beta) ^{2}

[by general trigonometry formula: cos^{2}[\beta]  +sin^{2}[\beta]=1]

so if  cos\alpha= 5/13, we can get sin\alpha from the above formula as + or - 12/13

(because, after taking square root on both sides we keep + or -]

  • as, sin2\beta  = 2*sin[\beta ]*cos[\beta ]

[by general trigonometry formula]

  • here, now sin[2\alpha ]=2*(+or- 12/13)*5/13\\

so, the final value can be 120/169 or -120/169.

4 0
3 years ago
38% of what number is 57
boyakko [2]
You can get the answer by dividing the number 57 by the decimal of the percent thirty-eight (.38), you see you multiply a decimal by a number or a number by a decimal to get a smaller number, whereas dividing like you do here gets and bigger number. ( In this case the answer to your question) So in conclusion 57 divided by .38 = 150, your answer.
7 0
3 years ago
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