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Aleksandr [31]
2 years ago
8

What is (4x-3)(7x+6)?

Mathematics
2 answers:
andre [41]2 years ago
5 0

Answer:

28x^{2} + 3x - 18

professor190 [17]2 years ago
4 0

Answer:

28x^2+3x-18

Step-by-step explanation:

Formula: (a+b)(a+b) = a^2 + a*b + a*b + b*b

Following this: 28x^2 -21x +24x -18

Then you combine like terms: 28^2 +3x-18

hope this helped!! :)

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Can someone help me with these 2 questions?
Nimfa-mama [501]

Answer:

3: x = 3      4: y = 8

Step-by-step explanation:

Problem 3:

Because of the lines on each side of the rhombus, that shows you that all of those lines are congruent with each other, meaning they are all the same length. So since one side equals the other, you can equal one of the equations on one side to another equation on another side. EX: x+5 = 3x-1. And then you solve that through multi-step equations.

Problem 4:

Just like on Problem 3, due to the little dashes going through the sides of the rectangle, the sides are congruent (the same length) as one another. Except the sides with one dash are not congruent with the sides with two dashes. But if you equal 2y and y+8, then you can solve that through multi-step equations again and get y = 8 since they are congruent with each other (due to the singular dashes running through their sides).

Hope this helped!

5 0
3 years ago
Pls help meeee the question is in the photo pls no links or fake answers pls answer both questions
maria [59]

Answer:

Step-by-step explanation:

First one is TRUE...you'd multiply by <u>negative</u> one third

Second is FALSE...no multiplication needed to get x as a positive.

8 0
2 years ago
points E,F and G are plotted on a number line at -1, 2 and 6 respectively. Find the coordinate o f the point that represents the
Maslowich

Answer:  3 is the weighted average

Step-by-step explanation:

A weighted average is sort of like it sounds. - Different data-points are given different weights as far as how much they affect the answer. It's like you had 4 people on a corporation's board and all four get to vote, but their votes count differently. Person A has a vote that counts as 3. Person B has a vote that counts as 2 votes. Persons C & D each have a vote that counts as just one vote. For peron A to get outvoted, all the others must gang up against him.

Okay, back to our actual problem ...

  • point E measures (-1) and has weight 2x weight of F
  • point F has a measure of 2 and no particular stated weight
  • point G measures 6 and has a weight of 3x weight of F

Since we can assign a weight to point F and the other weights will be based on that, let's just keep it simple and give point F a weight of 1.

That gives E a weight of 2, and G a weight of 3.

So, ...

E value times E weight is   (-1)   x   2 = -2

F value times F weight is      2   x   1 =   2

G value times G weight is   6   x   3 = 18

          Sum of (value x weight)  =  18

          Sum of the weights = 2 + 1 + 3 = 6

WE get the weighted average by taking the sum of (value x weight) products (18) and then dividing by the sum of the weights (6).

18/6 = 3, the weighted average

The point at coordinate 3 represents the weighted average.

4 0
2 years ago
When x =6 y=2 <br><br> What is:<br> 2(3x-6y)^2
ikadub [295]

Answer:

72

Step-by-step explanation:

We first substitute x = 6 and y = 2 into the equation

2(3 x (6) - 6 x (2)) ^ 2

First we multiply all the numbers in the bracket

2(18 - 12) ^ 2

Now we minus the numbers in the bracket

2(6)^2

Now we use the indice rule to do 6^2 which is 36

And then we multiply 36 by 2 which is 72

Hope it helps :)

3 0
2 years ago
Read 2 more answers
The expression c+0.07c gives the cost of an item including the tax of 7%. Simplify the expression.
lorasvet [3.4K]

1.07*c is the simplified equation

7 0
3 years ago
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