3 years ago

What is 3 x ( 2 x − 6 ) − ( 5 x + 8 ) + 2 ( 3 x 2 + 4 x )

Mathematics

1 answer:

zheka24 [161]3 years ago

3 0

First distribute.
6x^2 - 18x -5x - 8 + 6x^2 + 8x
Combine like terms
12x^2 - 15x - 8

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nikklg [1K]

Answer:

-7/10

Step-by-step explanation:

To find the slope of a line, you need to find the $\frac{rise}{run}$ between two points. I will be using the points (-3, 5) and (7, -2).

$\frac{rise}{run}$ = $\frac{-2-5}{7-(-3)}$

= $\frac{-7}{10}$

= -7/10

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2 years ago

a cylinder with base are 169π ft^2 and a height twice the radius. what is the lateral area and surface area of the cylinder

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$Area\ of\ base:A_B=169\pi\ ft^2\\\\A_B=\pi r^2\ \ \ (r-radius)\\\\\pi r^2=169\pi\ \ \ /:\pi\\\\r^2=169\\\\r=\sqrt{169}\\\\r=13\ (ft)\\\\H=2r\to H=2\cdot13=26\ (ft)$

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3 years ago

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Each power smoothie that Theo makes has 3 scoops of mango, 1 scoop of strawberries, and 1 scoop of spinach. If Theo makes 7 powe

EleoNora [17]

Answer: 35 scoops total!

Step-by-step explanation: FIrst, you would add the number of scoops in total which is 3+1+1=5 scoops.