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2 years ago

Which of the following equations is quadratic?

Mathematics

1 answer:

Dominik [7]2 years ago

6 0

Answer:

Step-by-step explanation:

hope this helps.

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Jane finished a race in 7 minutes. How many seconds is this.

Serggg [28]

Answer:

420 seconds

Step-by-step explanation:

(60 seconds in a minute, 60 x 7 = 420)

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2 years ago

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Find the midpoint of the segment with the following endpoints.<br> (5,5) and (10,8)

Solnce55 [7]

Answer: G

Step-by-step explanation:

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2 years ago

Somebody please help me

miss Akunina [59]

I chose x^3, it would be a cubic function , then it’s -(x-6 )^3 -2

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3 years ago

Two cyclists leave city at same time, one going east and the other going west. The westbound cyclist bikes 3 mph faster than the

Bumek [7]

Speed of the east bound cyclist is 12 mph and the speed of west bound cyclist is 15 mph.

<u>Solution:</u>

Let us assume that x is speed of slower eastbound cyclist

So, x+3 will be the speed of faster westbound cyclist

We know that distance is the product of speed and time. That is,

$\text{Distance}=\text{Speed}\times\text{Time}$

West-bound DATA:

Rate of speed = x+3 mph ; Time = 6 hrs ; distance = 6(x+3) = 6x+18 miles

East-bound DATA:

Rate of speed = x mph ; time = 6 hrs. ; distance = 6x miles

On solving,

Distance apart = 162

$\Rightarrow6x+18+6x = 162$

$\Rightarrow12x=162-18$

$\Rightarrow x=\frac{144}{12}\rightarrow x=12$

So, the rate of speed of the east bound cyclist is 12 mph and the rate of speed of the west bound cyclist will be $x+3=12+3=15 \text{ mph}$

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2 years ago

Why will percent of change always be represented by a positive number?

Murljashka [212]

Percent of change will always be positive because the change is an absolute value. As we know, absolute value is always a positive value because you don't pay attention to the direction, only the distance is important.

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2 years ago