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Roman55 [17]
3 years ago
5

Solve the equation by completing the square. Round to the nearest hundredth if necessary. x^2+3x-5=5

Mathematics
1 answer:
svlad2 [7]3 years ago
8 0
If you would like to solve the equation x^2 + 3 * x - 5 = 5, you can calculate this using the following steps:

<span>x^2 + 3 * x - 5 = 5
</span><span>x^2 + 3 * x - 5 - 5 = 0
</span><span>x^2 + 3 * x - 10 = 0
</span>(x + 5) * (x - 2) = 0
1. x = - 5
2. x = 2

The correct result would be x = - 5, or x = 2.
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6x+6y=30 and 4x+8y=30.60
Ipatiy [6.2K]
<span>Simplifying 4x + 8y = 30.60 Solving 4x + 8y = 30.60 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-8y' to each side of the equation. 4x + 8y + -8y = 30.60 + -8y Combine like terms: 8y + -8y = 0 4x + 0 = 30.60 + -8y 4x = 30.60 + -8y Divide each side by '4'. x = 7.65 + -2y Simplifying x = 7.65 + -2y</span>
6 0
3 years ago
What is the solution for x? 9-x/5=3
navik [9.2K]

Answer:

x = 30

Step-by-step explanation:

9-x/5=3

Subtract 9 from each side

9-9-x/5=3-9

-x/5 = -6

Multiply each side by -5

-x/5 *-5 = -6*-5

x = 30

8 0
4 years ago
Read 2 more answers
You have money in your wallet, but you don't know the exact amount. When a friend asks you, you say that you have 100 dollars gi
Flauer [41]

Answer: 75 < x < 125.

Step-by-step explanation:

Let x be the amount of money in your wallet.  

The phrase "100 dollars give or take 25" means wallet can have money between (100-25) dollars and (100+25) dollars.

i.e. 100-25 < x < 100+25

⇒ 75 < x < 125.

That means the amount of money in your wallet lies between 75 dollars and 125 dollars.

Hence, the inequality to describe the amount of money in your wallet is 75 < x < 125.

6 0
3 years ago
Cost of a bicycle: $1,500.00<br> Markup: 25%
GarryVolchara [31]

Answer:

1875

Step-by-step explanation:

1500 x .25 is 375 add them together

5 0
2 years ago
How many kilometers does the shark swim in 1 minute? Write your answer as a fraction.
DENIUS [597]

Answer:

Well I dont have the speed of the shark, so I'm going to be using averages. The average shark swims at 2.4KPH so basically 2.4/60=.04 You answer will be .04KPM

Step-by-step explanation:

6 0
3 years ago
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