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eduard
3 years ago
12

CAN SOMEONE PLEASE JUST ANSWER THIS ASAP FOR BRAINLIEST!!!

Mathematics
1 answer:
BARSIC [14]3 years ago
5 0

Answer:

F=7xy²

Step-by-step explanation:

Rewrite the question

4xy * F = 28x^2y^3         Divide by 4xy

\Text{F  =   }\dfrac{28x^2y^3}{4xy}

Divide the 4 into the 28.

Divide the x into the x^2

Divide the y into the y^3

\Text{F=}\dfrac{7x * x * y * y * y}{4xy}

\Text{F=}7*x*y*y

\Text{F=}7*x*y^2

F = 7xy²

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2) A girl starts from a point A and walks 285m to B on a bearing of 078°. She then walks due south to a point C which is 307m fr
adelina 88 [10]

Answer:

bearing of A from C is - 65.24°

the distance |BC| is 187.84 m

Step-by-step explanation:

given data

girl walks AB = 285 m (side c)

bearing angle B = 78°

girl walks AC = 307 m (side a)

solution

we use here the Cosine Law for getting side b that is

ac² = ab² + bc² - 2 × ab × cos(B)     ...............1

307² = 285² + x²  - 2 × 285 cos(78)

x = 187.84 m

and

now we get here angle θ , the bearing from A to C get by law of sines

sin (θ) = \frac{187.84}{307} \times sin(78)

sin (θ) =  0.5985  

θ = 36.76°

and as we get here angle BAC that is

angle BCA = 180 - ( 36.76° + 78° )

angle BCA = 65.24°

and here  negative bearing of A from C so - 65.24°

7 0
3 years ago
HELP! I NEED THE TWO EQUATIONS AND THE COST OF ONE PACKAGE OF BROWNIES AND ONE PACKAGE OF CUPCAKES
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Answer:

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A function is defined by y = 2x + 1. What is the range of the function if the domain is {0, 2, 3}?
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Answer:

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Step-by-step explanation:

For x=0, y = 2·0 +1 = 1

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For x=3, y = 2·3 +1 = 7

The range is the list of y-values, so is {1, 5, 7}.

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