2 years ago

Find the slope of the line that passes through the given points (5,-1), (-7,2)

Mathematics

1 answer:

soldier1979 [14.2K]2 years ago

7 0

Answer:

4y = -m-1 bcoz u use the formula y-y1 = (y2-y1/x2-x1) times (x-x1)

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In his boat, Sheldon can travel 45 mi downstream in the same time that it takes to travel 9 mi upstream. If the rate of the curr

Nataliya [291]

Answer:

9 mph

Step-by-step explanation:

-let x be the speed of current and t be time. The speed equation for both directions can then be represented as:

$Speed=\frac{Distance}{Time}\\\\\#Upstream\\(u-6)t=9\\\\\#Donwstream\\\\(u+6)t=45$

#Since t is equal in both, we can do away with t.

#We the divide the downstream equation by the upstream equation as:

$\frac{u+6}{u-6}=\frac{45}{9}\\\\(u+6)=5(u-6)\\\\u+6=5u-30\\\\4u=36\\\\u=9$

Hence, the boat's speed in still water is 9 mph

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3 years ago

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Step-by-step explanation:

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2 years ago

∠ A and ∠B are vertical angles. Find each angle if, m∠ A=7x+2 and m∠ B=4x+11. Solve for x

tino4ka555 [31]

Answer:

x=3

Step-by-step explanation:

Vertical angles are equal so

<A = <B

7x+2 = 4x+11

Subtract 4x from each side

7x+2-4x = 4x+11-4x

3x+2 =11

Subtract 2 from each side

3x+2-2 = 11-2

3x = 9

Divide by 3

3x/3 = 9/3

x=3

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3 years ago

You ask your best friend to lend you 200 to buy your favourite toy. She says she can lend you the money

faltersainse [42]

Answer: A) 248 dollars

B) 2 dollars every month

Step-by-step explanation:

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3 years ago

Read 2 more answers

20x+32y=0 <br> -50x-80y=0

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Answer:

dont know what you need

Step-by-step explanation:

explain what you need

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2 years ago