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madam [21]
3 years ago
6

EQUATIONS AND INEC

Mathematics
1 answer:
Nikolay [14]3 years ago
7 0

Answer:

a=2 and b=3

Step-by-step explanation:

5(2) +2(3) = 10 +6 =16

3(2) + 2(3) = 12

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a river flows due south at 1.2 miles per hour. A swimmer attempting to cross the river heads due east swiming at 3 miles per hou
kotegsom [21]

Answer:

The swimmer must move in the direction 338.2°

Step-by-step explanation:

Since the river flows due south at 1.2 miles per hour and the swimmer swims 3 miles per hour due east of the river, since their directions are perpendicular,  the resultant speed is the hypotenuse of the triangle formed by the two perpendicular directions.

The direction of the resultant speed is thus θ = tan⁻¹( vertical component/horizontal component) where vertical component = 1.2 mph due south = -1.2 mph and horizontal component = 3 mph due east = + 3 mph

So, θ = tan⁻¹(-1.2 mph/+ 3mph)

θ = tan⁻¹(-1.2/3)

θ = tan⁻¹(-0.4)

θ = -21.8°

θ = -21.8° + 360° (since we are in the fourth quadrant- between east and south)

θ = 338.2°

So, <u>the swimmer must move in the direction 338.2°</u>.

4 0
3 years ago
I need help !!!!!! Please bZ÷12=9
scoundrel [369]

Answer:

The answer is b=18/z

Step-by-step explanation:

Let's solve for b.

bz/2=9

Step 1: Divide both sides by z/2.

1/2bz/z/2=9/z/2

b=18/z

Answer:

b=18/z

5 0
3 years ago
I NEED HELP REALLY BAD PLEASE ANSWER THIS QUESTION AS SOON AS POSSIBLE!!!! Which of the following expressions represents the dis
Delvig [45]

A: 3/4 - 2.

Hope this helped!

8 0
3 years ago
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Ali is making a scale drawing of a triangular face of a pyramid of menkaure. The face of the actual pyramid has a base of 110m a
Harlamova29_29 [7]

Answer:

110:8.6

Step-by-step explanation:

110/1:68.8/5

=110:8.6

8 0
3 years ago
What are 3 equivalent fractions for 6
Hitman42 [59]
6 as a fraction is 6/1
12/2 
18/3
24/4
4 0
3 years ago
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