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levacccp [35]
3 years ago
11

Y =a/x make x the subject​

Mathematics
1 answer:
aniked [119]3 years ago
6 0

Answer:

x=a/y

Step-by-step explanation:

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A river is flowing at the rate of 2.4 miles an hour when a boy rows across it. If the boy rows at a still-water speed of 3.1 mil
Xelga [282]

Answer:

3.9 mi/h

Step-by-step explanation:

If the boy is rowing perpendicular to the current, the two vectors form a right triangle.

AB represents the downstream current, BC is the speed across the river, and AC is the ground speed of the boat

AC^2 = 2.4^2 + 3.1^2 =5.76 + 9.61 = 15.37

AC = sqrt(15.37) = 3.9 mi/h

The boat's speed over the ground is 3.9 mi/h.

7 0
3 years ago
The width of bergstroms dining room table is three feet shorter then the length. If the area of the tabletop is 28 square feet,
weeeeeb [17]
7*4=28
7-4=3
so the width is 4 feet and the length is 7 feet
6 0
3 years ago
The product of two numbers is 144 and their difference is 10. What is the sum of the two numbers
Lyrx [107]

Answer:

18+8=26

Step-by-step explanation:

Their sum would be 18 and * because they have  difference of ten. In order o get this you would have to multiply 1 X144 and so on.

6 0
3 years ago
Read 2 more answers
Yo i neeeeeeeeeeeeeeeeeeeeeeeeeeeed urgent elp
nignag [31]

Answer:

wheres ur calc

Step-by-step explanation:

9.25 - 0.5 + 0.375 = 9.126

8 0
3 years ago
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A camper wants to know the width of a river. From point A, he walks downstream 60 feet to point B and sights a canoe across the
Anarel [89]
<h2>Hello!</h2>

The answer is:

The correct option is:

D. 40 feet.

<h2>Why?</h2>

To solve the problem and calculate the width of the river, we need to assume that the distance from A to B and the angle formed between that distance and the distance from A to the other point (C) is equal to 90°, meaning that we are working with a right triangle, also, we need to use the given angle which is equal to 34°. So, to solve the problem we can use the following trigonometric relation:

Tan\alpha =\frac{Opposite}{Adjacent}

Where,

alpha is the given angle, 34°

Adjacent is the distance from A to B, which is equal to 60 feet.

Opposite is the distance from A to C which is also equal to the width of the river.

So, substituting and calculating we have:

Tan(34\°) =\frac{Width}{60ft}

Width=60ft*Tan(34\°)=60ft*0.67=40.2ft=40ft

Hence, we have that the correct option is:

D. 40 feet.

Have a nice day!

6 0
3 years ago
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