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Ivanshal [37]
4 years ago
14

6a2+5a−6 (2a-1)(2a+6) (2a+1)(2a-6) (2a-3)(2a+2) (2a+3)(3a-2)

Mathematics
1 answer:
atroni [7]4 years ago
3 0

You can break the equation into two groups:

6a² + 5a - 6

(9a - 6) + (6a² - 4a)

Simplify:

(9a - 6)

3(9a - 6)

(3a - 2)

--------------------------

(6a² - 4a)

2a(6a² - 4a)

(3a - 2)

--------------------------

(3a - 2)(2a+3)

You can't simplify any further, so that will be your answer.

Answer:

(2a + 3)(3a - 2)

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Abdullah earns $10 an hour delivering newspapers on his bicycle . He started with $20 in his bank account. what is the rate and
elixir [45]

Explanation:

The equation for this problem can be modeled in y = mx + b form.

m represents the rate of change and b represents the initial value or constant.

y = 10x + 20

x represents the number of hours he spent delivering newspapers

y is his total money after whatever number of hours he worked

The rate is 10, because it determines how much money he earns for each hour.

The y-intercept is 20, representing the starting amount of money in his bank account.

6 0
3 years ago
Part 2: The Zombie Assassin
Tatiana [17]

Answer:  See below

<u>Step-by-step explanation:</u>

            y = a(b)ˣ

  • y: final population of zombies
  • a: initial population of zombies
  • b: rate of decrease
  • x: number of hours

Given: a = 500,000   b = 50% (0.5)    

           y = 500,000(0.5)ˣ

Since we want to know the number assassinated (A), subtract the total from the final population of zombies

A = 500,000 - y

a) Equation: 500,000 - 500,000(0.5)ˣ

b)

\begin{array}{c|c|c||l|c}\underline{\quad a\quad}&\underline{\quad b\quad}&\underline{\quad x\quad}&\underline{\quad 500,000(0.5)^x=y \qquad}&\underline{\quad 500,000-y=A\quad}\\500,000&0.5&5&500,000(0.5)^5=15,625&\bold{484,375}\\500,000&0.5&10&500,000(0.5)^{10}=488&\bold{499,512}\\500,000&0.5&15&500,000(0.5)^{15}=15&\bold{499,985}\\500,000&0.5&20&500,000(0.5)^{20}=0&\bold{500,000}\\\end{array}

(Graph attached)

c) The assassins will earn 100,000 + 2(499,985) = $1,099,970 after 15 hours.

The number of zombies needed to assassinate in order to earn $1,000,000:

100,000 + 2z = 1,000,000

                 2z =   900,000

                   z =   450,000

d) How long will it take to eliminate all of the zombies?

   The population of zombies is zero when x = 20 hours

   How much money did the assassinators earn?

   100,000 + 2(500,000) = $1,100,000

3 0
4 years ago
-2+2x=4 help meeeeeeeeeeeeeeeeeeeeee
stiv31 [10]
The answer is X=3
Hope this helps!
5 0
3 years ago
How to solve the equation 2x^2 -1 =5x?
Amanda [17]

<u>Answer:</u>

x = 2.68, x = -0.186

<u>Step-by-step explanation:</u>

We are given the following equation that we are to solve:

2 x ^ 2 - 1 = 5 x

Rearranging this quadratic equation to get:

2 x ^ 2 -5 x - 1 = 0

Solving it by using the quadratic formula as we cannot find any factors for it.

x= \frac{-b \pm \sqrt{b^2-4ac} }{2a}

x=\frac{-(-5) \pm (-5)^2-4(2)(-1)}{2(2)}

x=\frac{5 \pm\sqrt{25+8} }{4}

x=\frac{5+\sqrt{33} }{4}, x=\frac{5-\sqrt{33} }{4}

x = 2.68, x = -0.186

7 0
3 years ago
Read 2 more answers
Can you please help me with this
Nutka1998 [239]
It is the same because 0.60 is equal to 0.6
Hope it helped!!
8 0
4 years ago
Read 2 more answers
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