Which function is a quadratic function?

1 answer:

5 0

The correct answer is: [C]: " c(x) = –8x² + 3x – 5 " .
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The quadratic function takes the form of:
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" f(x) = ax² + bx + c " .
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Answer choice: [C]: " c(x) = –8x² + 3x – 5 " ;

is the only answer choice provided that takes that form of the quadratic function:

" f(x) = ax² + bx + c " :

in which: " a = -8 " ; " b = 3 " ; " c = -5 " .
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Sarah deposits $600 in a savings account that pays 2.5% per year. What is the minimum number of years it would take for the amou

shutvik [7]

Here is the compound interest formula solved for years:
Years = {log(total) -log(Principal)} ÷ log(1 + rate)
Years = {log(800) - log(600)} ÷ log(1.025)
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That's how many years it takes for the $600 to become exactly $800.00
The question specifically asks how long for the money to be MORE than $800.00?

So, if we enter 800.01 into the equation, then the answer is
Years = {log(800.01) - log(600)} ÷ log(1.025)
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6 0

3 years ago

The cylindrical container is four-fifths full of powder. Round to the nearest tenth if necessary. a. The total capacity of the c

mezya [45]

Answer:

a. $\pi r^2h$

b. $\frac{4\pi r^2h}{5}$

Step-by-step explanation:

Volume of the container denotes its quantity. It is a three-dimensional space.

Let V denotes the volume of the container, h denotes the height of the container and r denotes the radius of the container.

The total capacity of the container in terms of π is $\pi r^2h$

As the cylindrical container is four-fifths full of powder, so the volume of the powder in terms of π is $\frac{4}{5}\times$ volume of the container i.e., $\frac{4\pi r^2h}{5}$