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Sonbull [250]
3 years ago
7

The temperature in Toronto at noon during a winter day measured 4 degrees Celsius.The temperature started dropping 2 degrees eve

ry hour.Which inequality can be used to find the number of hours,x,agter which the temperature will measure below-3 degrees celsius
Mathematics
1 answer:
Ronch [10]3 years ago
5 0

Answer:

4−2x<−3

Step-by-step explanation:

check:

now --- 4°

after 1 hr --- 2°

after 2 hrs--- 0°

after 3 hrs--- -2°

after 4 hrs--- -4°

so between 3 and 4 hrs it will reach -3°

4-2x < -3

-2x < -7

x > 3 1/2

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Step-by-step explanation:

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5 0
2 years ago
I got 16/63 but i am not sure if its correct or not .
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Answer:

i think i got

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Step-by-step explanation:


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Anyone good with algebra 2??
sweet [91]
A discontinuity is a point that cannot exist because the x-coordinate would cause a problem in the equation. If you have a polynomial in the denominator, you must find which values of x would cause the polynomial in the denominator to evaluate to zero. Since division by zero is undefined, that would cause a discontinuity.

Let's look at your function.

f(x) = \dfrac{x^2 - 16}{6x - 24}

x^2 - 16  is in the numerator. It is defined for every value of x. There is no problem there.

6x - 24  is in the denominator. This is a function defined for every value of x, but since it is in the denominator, we must exclude the x-value that would cause this polynomial to evaluate to zero.

We set it equal to zero and solve the equation for x.

6x - 24 = 0

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For x = 0, the denominator has a value of zero, so at this point there is a discontinuity in function f(x).

The answer is:

x \ne 4

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