What times what equals 28
2 answers:
Answer:
Step-by-step explanation: To obtain number 28, we will find the factors of this number.
Factors of this number are: 1, 2, 4, 7, 14, 28
From the given factors, we can find the combinations which will givs us the product as 28
We are asked to find the multiplication ( times) of two number that will yield a number 28. So, the combinations will be
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Answer:
Step-by-step explanation:
y = x² + 2x - 5
d. D: all real numbers R: (y greater-than-or-equal-to negative 6)
Answer:
- k = 0.006
- T = 48 °F
Step-by-step explanation:
The initial temperature difference of 72 -34 = 38 °F is reduced to a difference of 72 -41 = 31 °F after 35 minutes. The exponential term in the temperature expression could have the factor ...
(31/38)^(t/35) = e^(-kt)
Taking the natural log, we find ...
(t/35)ln(31/38) = -kt
k = ln(38/31)/35 ≈ 0.00581711
To the nearest thousandth, this is ...
k ≈ 0.006
Using this in the equation for temperature, we have ...
T = 72 -38e^(-0.006t)
Filling in the desired value for t (80), we find the turkey temperature after 80 minutes to be about
T = 72 -38e^(-.006×80) = 72 -38e^-.48 ≈ 48.49
T ≈ 48 °F
The value of k is about 0.006, and the turkey temperature is about 48 °F.
