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tia_tia [17]
3 years ago
14

Expand and simplify 5(3x+2)-2(4x-1)

Mathematics
2 answers:
Vanyuwa [196]3 years ago
7 0

Answer:

7  x  +  12

Step-by-step explanation:

Rama09 [41]3 years ago
4 0

Answer:

15x+10-8x+2

7x+12

Step-by-step explanation:

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The polynomials that are given are P(x)=
natima [27]

Answer:

Step-by-step explanation:

P(x)=  x³ - x² - 18

Q(x) = P(2x-1)

       = (2x-1)³ - (2x-1)² -18

       = (2x)³ - 3*(2x)² * 1 + 3*2x* 1² - 1³ - [ (2x)² - 2*2x*1 + 1 ] - 18

=8x³ - 12x² + 6x - 1 - [4x² - 4x +1 ] - 18

= 8x³ - 12x² + 6x - 1 - 4x² + 4x - 1  - 18

= 8x³ - 16x² + 10x - 20

Hint : (a-b)³ = a³-3a²b+3ab²-b³

(a-b)² = a² -2ab + b²

8 0
3 years ago
M1Q1.) Which plot represents a stemplot of the data?
shusha [124]

Answer:

answer 1

Step-by-step explanation:

Since there's only 1 value in the 90-99 groups it is either 1 or 3.

Furthermore, there are only 2 values starting with 10.

This only fits with answer 1

6 0
3 years ago
Read 2 more answers
I need alot of help in math
umka2103 [35]
Plug in the dimensions to the formula given using a handy dandy calculator for both problems. 

1. The diameter of the bottom of the cone is 4 so the radius (half that) is 2. Volume = 1/3 * pi * (2)² * 6
= 1/3 * pi * 4 * 6
= 1/3 * pi * 24
= 8 * pi
≈ 25.1327 cm³

2. They give you all you need, the radius.
Volume = 4/3 * pi * (6)³
= 4/3 * pi * 216
= 288 * pi
≈ 904.7787 in³
3 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
(PLEASE HELP)<br> what is the value of the x-coordinate of point p?
labwork [276]

Answer:

x- coordinate of P is - 6

Step-by-step explanation:

The coordinates of any point in the form of an ordered pair (x, y )

Point P has coordinates P (- 6, 2 )

4 0
3 years ago
Read 2 more answers
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