Is this circumference or Area ? Plz help me plz I beg u no links olz

Simplify the following expression (a+2)(3a-1)

Rasek [7]

3a^2+5a-2.

To do this problem would require a method called FOIL. If you are not familiar this means First Outside Inside Last. You multiply the First terms, 3a and a, which results in 3*a*a or 3a^2. Next you multiply the Outside terms, a and -1, which results in -a. Next multiply the Inside terms, 2 and 3a, to result in 6a. Finally multiply the Last terms, 2 and -1, which gives us -2. If we put all these terms together we get 3a^2 -a +6a -2 which we can then simplify to 3a^2+5a-2

6 0

3 years ago

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What is the 30th term in the arithmetic series: {58,51, 44, 37,...}?

gladu [14]

Answer:

-145

Step-by-step explanation:

6 0

3 years ago

When two lines intersect they form two pairs of opposite angles called?

tatuchka [14]

Hello, Katrina7!

Vertical angles are when two lines intersect they form two pairs of opposite angles.

I really hope this helps;)

5 0

3 years ago

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Jim says that the output of the floor function is the number before the decimal point in the input. For what domain is Jim’s sta

sweet [91]

Answer:

integers ∪ [0, ∞)

Step-by-step explanation:

The floor function gives the largest integer not greater than the input value. For non-negative numbers, that is the integer portion of the number, as Jim says.

However, for negative numbers, the floor is one less than the integer portion of any number that has a non-zero fractional part.

floor(1.2) = 1

floor(0.2) = 0

floor(-0.2) = -1

floor(-1.2) = -2

For any integer, negative or otherwise, the floor function gives that integer value.

Jim is correct on the domain of all integers and positive non-integers.

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3 years ago

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How many years will it take an account to double in value, assuming a 5.2% interest rate compounded quarterly? Round your answer

zhuklara [117]

The money account is doubled at an interest rate of 5.2 % compunded quarterly, that is, under the model of compound interest in a time period of about 3.5 years.

<h3>How to determine the doubling time of money account</h3>

The compound interest takes into account the change of money deposited in time in contrast with the simple interest, which only takes the initial amount of money into account. Please notice that four quarters equals a year.

The compound interest formula is described below:

C = C' · (1 + r/100)ⁿ (1)

Where:

r - Interest rate
n - Number of periods
C' - Initial money amount
C - Current money amount

If we know that C = 2 · C' and r = 5.2, then the doubling time is:

n = /㏒ C/C'/㏒ (1 + r/100)

n = ㏒ 2/㏒ 1.052

n ≈ 13.674

The money account is doubled at an interest rate of 5.2 % compunded quarterly, that is, under the model of compound interest in a time period of about 3.5 years. $\blacksquare$

To learn more on compound interests, we kindly invite to check this verified question: brainly.com/question/14295570

7 0

2 years ago