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Lesechka [4]
3 years ago
5

Multiply (3x-8)(2x^2+4-9)

Mathematics
1 answer:
natali 33 [55]3 years ago
8 0

Answer:

6 x^ 3 − 16 x^ 2 − 15 x + 40

Step-by-step explanation:

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The width of a rectangle is 6n - 2.5 feet and the length is 2.5 + 8 feet. Find the perimeter of the rectangle.
ludmilkaskok [199]

I was thinking the measurement for ;length should be 2.5n + 8 feet since width is 6n -2.5 feet , but you gave 2.5+ 8 feet, so i will solve it in both ways

Answer:  Perimeter =  5 + 12n + 11 feet ; Perimeter =  17n+ 11 feet

Step-by-step explanation:

Using Length = 2.5+ 8 feet,

Perimeter of  a rectangle is calculated as 2( l+ b)

Given that width=6n - 2.5 feet

length =2.5 + 8 feet

Perimeter =2( l+ b)= 2L + 2B

Perimeter= 2(2.5 + 8feet ) + 2( 6n - 2.5 feet)

Perimeter = 5 + 16feet + 12n - 5feet

Perimeter =  5 + 12n + 11 feet

Using Length = 2.5n+ 8 feet,

Perimeter of  a rectangle is calculated as 2( l+ b)

Given that width=6n - 2.5 feet

length =2.5n+ 8 feet

Perimeter =2( l+ b)= 2L + 2B

Perimeter= 2(2.5n + 8feet ) + 2( 6n - 2.5 feet)

Perimeter = 5n + 16feet + 12n - 5feet

Perimeter =  5n + 12n + 11 feet

Perimeter =  17n+ 11 feet

6 0
2 years ago
Write 27 + 21 as a product using the GCF as one of the factors.
levacccp [35]
The greatest common factor is 48
8 0
2 years ago
Quadratic formula for x^2-4x+5=0
Feliz [49]
Here go to this website, it will explain everything 
https://www.symbolab.com/solver/quadratic-equation-calculator/2x%5E%7B2%7D-4x+5=0
3 0
3 years ago
Red ribbons are wrapped around all the columns of a building. Each ribbon does not overlap itself. Each column has a radius of 3
Roman55 [17]

Hello!

If this long ribbon measures 144\pi feet, you can see, it was only multiplied by one number, which has the be the diameter of a column to get our circumference. If we divide this by our diameter 6 (diameter is double the radius, 3), we get our answer below.

144/6=24

Therefore, our answer is C) 24.

I hope this helps!

5 0
3 years ago
Read 2 more answers
Help pls I really need this. Do I need to add or multiply and also I need the answer? Will get brainlist and 10 points
harkovskaia [24]

Answer:

336 cubic inches

Step-by-step explanation:

Multiply length by width by height for volume.

4 0
3 years ago
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