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andrey2020 [161]
3 years ago
13

2. Simplify. 10(x + 2)(x – 3) 5(x - 3)(x + 6)

Mathematics
2 answers:
Mariana [72]3 years ago
8 0

Answer:

10(x + 2)(x - 3) \\ 10x + 20 \times x - 3 \\ 10 {x}^{2}  + 17

5(x - 3)( x + 6) \\ 5x - 15 \times x + 6 \\ 5 {x}^{2}  - 9

Basile [38]3 years ago
7 0

Answer:

If it's all one multiplication problem:

50x^4  +  100x^3  −  1350x^2  +  5400

Just 50x to the 4th power

plus 100x to the 3rd power

plus 1350x to the 2nd power

plus 5400

If it's two separate problems:

10x^2  -  10x  -  60

5x^2  +  15x  -  90

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if a tv has a diagonal measurement of 55 and a height of 30, what is the tvs width? round to the nearest whole number
Sati [7]

Answer:

  46

Step-by-step explanation:

The geometry can be modeled by a right triangle. The diagonal measure is the hypotenuse, and the height is one leg. The width is the other leg, and can be found using the Pythagorean theorem.

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<h3>Pythagorean theorem</h3>

The relation between the leg lengths (a, b) and the hypotenuse (c) is ...

  c² = a² +b²

Solving for b gives ...

  b = √(c² -a²)

<h3>application</h3>

In this problem, we have c=55 and a=30. Then the width of the TV is ...

  b = √(55² -30²) = √(3025 -900) = √2125

  b ≈ 46.098

The width of the TV is about 46.

7 0
2 years ago
During my three-week stay in Walla Walla, Washington, it rained for 7 days, it was sunny for 11 days, and it was overcast withou
Gre4nikov [31]
Rain : sunny : overcast 
7:11:3

7x + 11x + 3x = 366
21x = 366
x = 366/21
x = 17.43

7(17.43) = 122.01 days rain
11(17.43) = 191.73 days sunny
3(17.43) = 52.29 days overcast
4 0
3 years ago
Read 2 more answers
What is the volume of the triangular prism below?
Free_Kalibri [48]

Answer:

11.5 in

Step-by-step explanation:

3 0
3 years ago
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a sample of unknown liquid has a volume of 12.0ml and a mass off 6g, what is its density? and how did you do the problem?
maw [93]

Answer:


Step-by-step explanation:

The equation for solving for density is:

Density = mass / volume

Then plug in the values:

Density = 6 g / 12 mL

Divide and don't forget the units!

Density = 0.5 g/mL


5 0
3 years ago
The area of a square with side a is S. What is the formula for dependence of S on a?
lawyer [7]

Answer:

S=a^2

Step-by-step explanation:

Note all sides of a square are equal, and the formula for finding the area is length x width of which the length=a and the with =a. So S=a^2.

4 0
3 years ago
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