3 years ago

Determine if the numbers are parallel, perpendicular or netiher.

Mathematics

1 answer:

Margarita [4]3 years ago

4 0

Answer:

Parallel :)

Step-by-step explanation:

thats the tea sis.

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makvit [3.9K]

If you need to solve this equation you can multiply the both side of equation on (-1). Like that
2 = (-x);
-1·2 = (-1)·(-x)
if you multiply negative and positive you'll have negative,
if you multiply negative and negative you'll have positive. So

-2 = x. or
x = -2.
The answer is -2.

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3 years ago

Find the circumference of a circle with diameter 8 meters

uysha [10]

The answer is going to 25.13

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3 years ago

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Ierofanga [76]

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Step-by-step explanation:

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3 years ago

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By driving 8 mph faster than Bob, John can make a 230 mile trip in one half hour less. How fast does Bob drive on the trip? Roun

____ [38]

Answer: The speed of Bob is 56.8 km/hr.

Step-by-step explanation:

Let the speed of Bob be 'x'.

Let the speed of John be 'x-8'.

Distance covered = 230 miles

time = $1\dfrac{1}{2}=\dfrac{3}{2}\ hr$

According to question, we get that

$\dfrac{230}{x}-\dfrac{230}{x+8}=\dfrac{3}{2}\\\\230\dfrac{x+8-x}{x(x+8)}=\dfrac{3}{2}\\\\\dfrac{230\times 8}{x^2+8x}=\dfrac{3}{2}\\\\\dfrac{1840}{x^2+8x}=\dfrac{3}{2}\\\\1840\times 2=3x^2+24x\\\\3680=3x^2+24x\\\\3x^2+24x-3680=0\\\\x\approx 56.8\ km/hr$

Hence, the speed of Bob is 56.8 km/hr.

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3 years ago

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sveta [45]

9(8-x)=3x
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2 years ago

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