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harkovskaia [24]
4 years ago
6

What is the answer to 15a + 9 =

Mathematics
2 answers:
Elena-2011 [213]4 years ago
5 0

Answer:

Step-by-step explanation:

Use distributive property

15a + 9 = 3*5*a + 3*3

           = 3 (5a + 3)

Alex777 [14]4 years ago
3 0

<em>Answer:</em>

<em>   </em>a=-\frac{3}{5}<em />

<em>Step-by-step explanation:</em>

15a-9=0\\\\15a=-9\\\\a=-\frac{9}{15} \\\\a=-\frac{3}{5}

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A circle with radius 3 has a sector with a central angle of 1/9 pi radians
marissa [1.9K]

Complete question:

A circle with radius 3 has a sector with a central angle of 1/9 pi radians

what is the area of the sector?

Answer:

The area of the sector = \frac{\pi}{2} square units

Step-by-step explanation:

To find the area of the sector of a circle, let's use the formula:

A = \frac{1}{2} r^2 \theta

Where, A = area

r = radius = 3

\theta = \frac{1}{9}\pi

Substituting values in the formula, we have:

A = \frac{1}{2}*3^2* \frac{1}{9}\pi

A = \frac{1}{2}*9* \frac{1}{9}\pi

A = 4.5 * \frac{1}{9}\pi

A = \frac{\pi}{2}

The area of the sector = \frac{\pi}{2} square units

8 0
3 years ago
To the girl who got it right is the one in the comments :D
Mama L [17]
Dang that’s nice free points thank you
3 0
3 years ago
What does 3ˣ + 4·3ˣ⁺¹ =<br> a. 13·3ˣ⁺¹<br> b. 5·3ˣ⁺¹<br> c. 5·3²ˣ⁺¹<br> d. 13·3ˣ
Crazy boy [7]

Answer:

D. 13*3^x

Step-by-step explanation:

3^x +4*3^x^+^1= \\3^x+4*3(3^x)=\\3^x(1+[4*3])=\\3^x(1+12)=\\3^x(13)=\\13*3^x

3 0
3 years ago
What is the quotient of 5 divided by 2 1/2 reduced to the lowest terms
bixtya [17]
When you divide with fractions you have to multiply the "dividend" with the reciprocal of the "divisor". 

2 1/2 in improper fraction is 5/2 

5 x 2/5 = 10/5 = 2
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$190,258.50; $152,698.00; $122,753.00; $220,523.00; $231,951.00. What is the average of these five amounts?
Yakvenalex [24]
The average of those five amounts is 183,636.7 
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3 years ago
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