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qwelly [4]
3 years ago
5

2x2 + 12x – 3 = 0 I don't know the steps and was wondering if I could get help.

Mathematics
2 answers:
Serhud [2]3 years ago
4 0

2×2 then -3

I hope this can help

Papessa [141]3 years ago
3 0
12x=-1 I think this con help you
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IM PUTTING THIS FOR 30 POINTS PLEASE ANSWER
salantis [7]

Answer:

2(Jill) - 20 + (Jill) = 205

3(Jill) = 225

(Jill) = 75

(Jack) = 2(75) - 20 => 150 - 20 = 130

Jill= 75

Jack= 130

Step-by-step explanation:

6 0
3 years ago
Suppose that the amount of algae in a pond doubles every 6 hours. if the pond initially contains 50 pounds of algae, how much al
bulgar [2K]

Answer:

A. 400

Step-by-step explanation:

initially have 50 pounds after 6 hours, doubles to 100. 6 (12 total) more hours 100 doubles to 200. after another 6 (18 hours) 200 doubles to 400.

5 0
3 years ago
4.Thirty percent of the liquid evaporated. If 560 milliliters remain, how many milliliters evaporated?
Vitek1552 [10]
392 millimeters I think that's the answer but I'm not sure
5 0
3 years ago
Read 2 more answers
Factor completely 2x2 − 6x − 36.
gavmur [86]
To factor out completely, we should have reached the most simplified form,
first we should take out 2.
2(x2 - 3x - 18)
then we should factor out the inside of the parenthesis,
2(x - 6)(x + 3)
And that's the most simplified and factored out form.

The final answer is then the second option, <span>2(x − 6)(x + 3)</span>
4 0
3 years ago
A car rental costs $50 for the first day. Additional days cost $35 per day, unless the car is rented for 7 days or more, in whic
son4ous [18]

Answer:

\$50+\$31.5x

Step-by-step explanation:

Let

x------> the number of days

y----> the cost of renting a car

we know that

For x

y=\$50+\$35x

For x\geq 7\ days

The rate is equal to

0.90*\$35=\$31.5

so

y=\$50+\$31.5x

In this problem. the car has been rented for more than a week

therefore

x> 7\ days

The cost of renting a car is equal to

y=\$50+\$31.5x

6 0
3 years ago
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