3 years ago

Which is equivalent to 3log28 + 4log212 − log32?

Mathematics

1 answer:

DiKsa [7]3 years ago

8 0

Answer:log1.39*10^12=12.14

Step-by-step explanation:

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If the temperature after 4.4 degree drop was -2.5 degrees Celsius what was the temperature at noon

Lostsunrise [7]

Answer:

1.9°C

Step-by-step explanation:

Let X be the temperature at noon and -2.5°C be the current temperature after the drop.

-We calculate temperature at noon as:

$\bigtriangleup =t_o-t_n\\4.4=X--2.5\\\\X=4.4-2.5\\\\=1.5\textdegree C$

Hence, the temperature at noon was 1.9°C

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3 years ago

What is 6 gallons in litres, to the nearest litre?

cestrela7 [59]

Answer:

22.71

Step-by-step explanation:

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3 years ago

How do you solve: f(x) = -x2e-x<br> +2xe-x , finding the zero's of f.

Maksim231197 [3]

Answer:

0 and 2

Step-by-step explanation:

$f(x) = -x^2e^{-x}+2xe^{-x}$

To find zeros set f(x)=0 and solve for x

$0 = -x^2e^{-x}+2xe^{-x}$

$0 = -e^{-x}(x^2-2x)$

now factor out x

$0 = -xe^{-x}(x-2)$

set each factor =0 and solve for x

$x=0$

$-e^{-x}=0$ no solution for x

$x-2=0, x=2$

zeros of f are 0 and 2

7 0

4 years ago

What is the sum of (5.4 * 10^5) + (6.7 * 10^4)? Write your answer in scientific notation.

shutvik [7]

The answer is 3.618 x 10^10

8 0

3 years ago

Alice weighs 20 dogs and 20 cats. The mean weight for the dogs is 32kg and the mean weight for cats is 4kg. The range in weight

alexgriva [62]

Answer:

1. Dogs are generally heavier than the cats.

2. The dogs have a much larger variety in their weights and size than cats.

Step-by-step explanation:

6 0

2 years ago