3 years ago

Slope of (7,1) (12,4)

Mathematics

1 answer:

Kamila [148]3 years ago

6 0

Answer:

the slope is 3/5

Step-by-step explanation:

We can find the slope from two points using the formula

m = (y2-y1)/(x2-x1)

= (4-1)/(12-7)

= 3/5

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Nimfa-mama [501]

Answer: $b(t(h))=135h^2+180h+125$

Step-by-step explanation:

Given: The number of bacteria, B, in a refrigerated food is given by the function $b(t)=15t^2-60t+125$ , where t is the temperature of food in degrees Fahrenheit.

The function $t(h)=3h+4$ gives the temperature, t, of the food h hours after being removed from the refrigerator.

Now, the number bacteria in the food in h hours is given by:-

$b(t(h))=15(3h+4)^2-60(3h+4)+125\\=15(9h^2+16+24h)-180h-240+125\\=135h^2+240+360h-180h-240+125\\=135h^2+180h+125$

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$b(t(h))=135h^2+180h+125$

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Step-by-step explanation:

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