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2 years ago

Hi anyone have any idea i am confused

Mathematics

1 answer:

Kobotan [32]2 years ago

3 0

Answer:

3rd option

Step-by-step explanation:

y = x² + 2x - 35

consider the factors of the constant term (- 35) which sum to give the coefficient of the x- term (+ 2)

the factors are + 7 and - 5 , since

7 × - 5 = - 35 and 7 - 5 = + 2 , then

y = (x + 7)(x - 5) ← in intercept form

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dybincka [34]

Answer:

$D(t)=50(0.8)^t$

Step-by-step explanation:

We are given that

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$r=\frac{1}{5}/min$

We have to find the function that gives the temperature difference in degrees Celsius D(t).

We know that

$D(t)=a(1-r)^t$

Substitute the values

$D(t)=50(1-\frac{1}{5})^t=50(1-0.2)^t$

$D(t)=50(0.8)^t$

This is required function that gives the temperature difference in degrees Celsius.

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Alexandra [31]

Answer:

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3 years ago

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Answer:

Step-by-step explanation:

Step 1:

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