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ratelena [41]
3 years ago
13

Two forces with magnitudes of 25 and 30 pounds act on an object at angles of 10° and 100°, respectively. Find the direction and

magnitude of the resultant force. Round to two decimal places in all intermediate steps and in your final answer.
I need an explanation please, I don't even know where to start.
Mathematics
1 answer:
Alina [70]3 years ago
6 0

Answer:

Here you go.

Step-by-step explanation:

x=25cos10+30cos100

y=25sin10+30sin100

v=√(x^2+y^2)

α=tan(y/x)  

Rounding to two decimal places in intermediate steps...

x≈19.41, y≈33.89

v≈39.05

α=60.20°

So (39.05, 60.20°)

Hope that helped, mark as brainliest asap not file exploiters

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Answer:

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Step-by-step explanation:

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Read 2 more answers
warehouse A has 200 tons of coal and sells 15 tons every day. warehouse B has 80 tons and buys 25 everyday in how many days does
forsale [732]

Hey there! I'm happy to help!

Let's represent the number of days with x.

WAREHOUSE A

200-15x

WAREHOUSE B

80+25x

We want to find how many days it will take for the two warehouses to have the same amount of coal. Let's put these expressions into an equation to show that they are equal and see what x is.

200-15x=80+25x

We subtract 25x from both sides.

200-40x=80

We subtract 200 from both sides.

-40x=-120

We divide both sides by -40

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Therefore, warehouse A and warehouse B will have the same amount of coal after 3 days.

Have a wonderful day! :D

7 0
3 years ago
Find value of the variables#7
RideAnS [48]
Because of exterior angles theorem, y=39+65, so y=104
x and y are a linear pair, so they add up to 180. x=180-104, x=76
all angles in a triangle add up to 180, so 21+104+z=180. therefore, z=55

y=104
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z=55
3 0
3 years ago
Solve the equation &lt; or &gt;? +10 ? +13
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Answer:

the answer is <

Step-by-step explanation:

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