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Studentka2010 [4]
3 years ago
5

If the average of 2b and 4b is 12, what is the value of b?

Mathematics
1 answer:
rusak2 [61]3 years ago
6 0

Answer:

b=3

Step-by-step explanation:

2b+4b=12

6b^2=12

6b^2 - 6 =12 - 6

b^2/2=6/2

b=3

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Can someone please help me with this
Anuta_ua [19.1K]

Answer:

Perimeter = 18m

Area = 18m²

Step-by-step explanation:

On a rectangle, opposite sides have equal lengths. This means to find the perimeter you would do (3 × 2) + (6 × 2) which is 6 + 12 = 18

The perimeter is 18m

To find the area, you would do length × width. The length is 6 and the width is 3 so 6 × 3 is 18

The area is 18m²

Hope this helps!

4 0
2 years ago
A tissue box shaped like a rectangular prism. The box is 2.3 feet wide, 4 feet long and 6 feet tall. what is the volume of the t
Taya2010 [7]
Multiply 2.3 x 4 x 6 and u shall get yer answer.
8 0
3 years ago
Simplify the expression to a + bi form:<br> (-2 - 6i)?
mixer [17]

The expression (-2 - 6i)-(-2-4i) to a + bi form is 0 - 2i.

Complete question.

Simplify the expression to a + bi form:

(-2 - 6i)-(-2-4i)

Square root of any negative number are expressed as a complex number. For example i = √-1

Complex numbers are generally written in the format z = x+iy

Given the expression (-2 - 6i)-(-2-4i)), in expansion:

(-2 - 6i)-(-2-4i)

= -2 - 6i + 2+4i

Collect the like terms

= (-2 + 2) - 6i + 4i

= 0 - 2i

Therefore the expression (-2 - 6i)-(-2-4i) to a + bi form is 0 - 2i.

Learn more on complex number here: brainly.com/question/12375854

6 0
3 years ago
Help me with this problem plz
katrin [286]
4.43

To find the mean (average) # of sick days taken, you add all the numbers, then divide by the number of employees.

31 ÷ 7 = 4.4285714286 or aprox. 4.43
8 0
4 years ago
4×(2.1+3.9)-7)+6×(6.2-4.2)=
Helen [10]
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8 0
3 years ago
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