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3 years ago

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Mathematics

2 answers:

Inessa05 [86]3 years ago

5 0

Answer:

9π

Step-by-step explanation:

3²π = 9π

valkas [14]3 years ago

3 0

ANSWER

28.26 units square.

EXPLANATION

The area of a circle is given by

$A = \pi \: {r}^{2}$

The radius of the circle is given as 3 units.

We substitute r=3 and π=3.14 into the formula to obtain:

$A = 3.14 \: \times {3}^{2}$

$A = 28.26sq. \: units$

Therefore the area of the circle 28.26 units square.

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The product of a number and negative three is twenty-seven. Which of the following could represent this statement?

Arturiano [62]

Answer:

Step-by-step explanation:

The product of a number and negative three is twenty-seven.

<em>n - </em><em>a number</em>

the product of a number and negative three: <em>n · (-3) = -3n</em>

5 0

3 years ago

Read 2 more answers

Complete the square. Fill in the number that makes the polynomial a perfect-square quadratic.

dimaraw [331]

Answer:

225

Step-by-step explanation:

a $x^{2}$ - bx + c

$(\frac{b}{2}) ^{2}$

$(\frac{-30}{2}) ^{2}$

$(-15)^{2} \\$

225

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2 years ago

The number of medals won by the United States is 26 more than three times the number of medals won by Italy. Write an algebraic

Illusion [34]

x = the number of medals won by Italy

y = the number of medals won by the US

y = 3x + 26

The <u>number of medals won by the United States</u>(y) <u>is</u>(=) 26 <u>more</u>(addition) than three <u>times</u>(multiplication) the <u>number of medals won by Italy</u>(x)

4 0

3 years ago

SOMEBODY HELP ME PLEASE

Karolina [17]

The exponential model indicates that hydropower energy generation has increased by 2.3% (0.023).

<h3>What is an exponential function?</h3>

An exponential function can be defined as a type of mathematical equation whose numerals are generated by a constant that's raised to the power of an argument.

Based on an exponential model for this data, we can deduce the following:

Mathematically, the exponential function for the given data is given by $y = 1276.6e^{0.023x}$

The exponential model indicates that hydropower energy generation has increased by 2.3% (0.023).

Hydropower energy generation in 25 years after 1970 was closest to 2270 TWh.

Because the correlation coefficient indicates a strong correlation between the model and the data, this prediction can be accepted with confidence interval of 98.7%.

Read more on exponential functions here: brainly.com/question/12940982

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5 0

2 years ago

¿Cuál es el capital que colocado al 6% quincenal<br> genera en 2 meses un monto de S/. 7200?

Zinaida [17]

Answer:

$27428.57

Step-by-step explanation:

To solve this problem, we can use the formula for compound interest:

P = Po * (1 + r)^(t)

Where P is the final value, Po is the inicial value, r is the rate of interest, t is the time.

With r = 0.06, t = 4 (The rate is for every 15 days, and the time is 2 months, so we have that 2 months = 4 periods of 15 days) and P = Po + 7200, we have:

Po + 7200 = Po * (1 + 0.06)^4

Po + 7200 = Po * 1.2625

Po * 0.2625 = 7200

Po = 7200 / 0.2625 = $27428.57

3 0

3 years ago