2 years ago

(4 + 3x + x2) + (6 – 9x + x2)

2 answers:

7 0

Have to use the commutative property to record the like terms then collect the like terms Then remove the unnecessary ( ) then collect the terms and ur answer is 10-2x

Gnoma [55]2 years ago

3 0

If your looking for a simplified answer, it would be $2x^2-6x+10$ .

Hope this helps.

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28= -2u u= ? Basically, U equals what?

vredina [299]

Answer: U=-14
Explanation:

4 0

2 years ago

Please help thank you very much

mezya [45]

1. 22
2.34
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3 years ago

3-4/5X-2/3–3/15+3/5divided by -3/2

deff fn [24]

Answer:

-2(6x-13)/15

Step-by-step explanation:

This is done by simplifying the expression as well as combining like terms

4 0

2 years ago

Doug bought a new car for 25,

pentagon [3]

This is exponential decay which can be expressed as:

y=ab^t, y=final value, a=initial value, b=rate, t=time

In this case a=25000, r=(100-20)/100=0.8 so

y=25000(0.8^t), so in 4.5 years...

y=25000(0.8^4.5)

y≈$9158.93 (to nearest cent)

3 0

2 years ago

Read 2 more answers

a store is having a sale on walnuts and chocolate chips. for 3 pounds of walnuts and 5 pounds of chocolate chips, the total cost

Step2247 [10]

Answer:

Walnuts - $1.25, chocolate chips - $3.25

Step-by-step explanation:

Let walnuts = x, chocolate chips = y

Set a system and solve:

3x + 5y = 20
6x + 2y = 14

Double the first equation and subtract the second one from it:

6x + 10y - 6x - 2y = 40 - 14
8y = 26
y = 26/8
y = 3.25

Find the value of x:

6x + 3.25*2 = 14
6x = 14 - 6.5
6x = 7.5
x = 7.5/6
x = 1.25

7 0

1 year ago