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2 years ago

11

Please help 10 points and you get brainiest if you get it right. look at the pic below

2 answers:

IRISSAK [1]2 years ago

6 0

I think its 2/3 + 1/4 = 11/12

Nimfa-mama [501]2 years ago

5 0

Change the equation to 8/12 + 3/12 = 11/12

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at McDonalds a cheese burger, c, has 200 fewer calories that a large fry, f. two cheeseburgers and a large fry have 1100 calorie

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Answer:

700 more caleries

Step-by-step explanation:

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3 years ago

Read 2 more answers

The one whoever solved it until 11 :00 am will be markrd as the branliest plus 20 points it arrange in ascending order with meth

Monica [59]

Answer:

1) 1/6, 1/3, 1/2, 3/4

2) 3/10, 2/5, 7/10, 4/5

3) 1/4. 7/12. 2/3, 5/6

4) 4/15. 11/30, 2/5, 7/10

Step-by-step explanation: Either convert all in a set to a common denominator, or convert to decimal fractions.

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2 years ago

The value of y directly varies with the value of x. If y equals 21when x is 14, what is the value of y when x = 20?

Karo-lina-s [1.5K]

Answer:

21×20÷14

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2 years ago

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Natalka [10]

Answer:

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7 0

3 years ago

Find the exact value of tan(x-y) if sin x=8/17 cosy = 3/5

jolli1 [7]

To solve the the question we proceed as follows:

From trigonometric laws

$(cos x)^2+(sin x)^2=1$

$(cos x)^2+(sin x)^2=1$

$sin (x-y)=sin$ $x$ $sin$ $y-sin$ $y$ $cos$ $x$

$cos (x-y)=cos$ $x$ $cos$ $y+sin$ $x$ $xin$ $y$

si $x=\frac{8}{17}$

$cos$ $x=sqrt(1-(sin x)^2)=sqrt(1-64/289)=sqrt(\frac{225}{289} )=\frac{15}{17}$

$cos$ $y=\frac{3}{5}$

$sin$ $x= sqrt(1- (cos x)^2)= sqrt(1-\frac{9}{25} )=sqrt(\frac{16}{25} )=\frac{4}{5}$

thus

$tan (x-y)=[sin (x-y)]/[cos (x-y)]$

=[sin x cos y-sin y cos x]/[cos x cos y+sin x sin y]

plugging in the values we obtain:

$[8/17 *3/5-4/5*15/7]/[15/17*3/5+8/17*4/5]$

simplifying

$[24/85-60/85]/[45/85+32/85]$

$=-\frac{36}{77}$

6 0

2 years ago