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Ilia_Sergeevich [38]
3 years ago
10

What is addition of property for 28+29+42

Mathematics
1 answer:
Nataly [62]3 years ago
5 0
<span>28+29+42=99 Hope this helps!</span>
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Solve the equation 2x^2-3x-6=0 give your answer correct to two decimal places
IRISSAK [1]

Answer:

<h2>x = - 1.14 or x = 2.64</h2>

Step-by-step explanation:

2x² - 3x - 6 = 0

Using the quadratic formula

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

a = 2 , b = - 3 , c = 6

Substituting the values into the above formula

We have

x =  \frac{ -  - 3± \sqrt{ { - 3}^{2}  - 4(2)( - 6)} }{2(2)}

x =  \frac{3± \sqrt{9 +48 } }{4}

x =  \frac{3± \sqrt{57} }{4}

x =  \frac{3 -  \sqrt{57} }{4}  \:  \:  \:  \: or \:  \:  \:  \:  \: x =  \frac{3 +  \sqrt{57} }{4}

We have the final answer as

<h3>x = - 1.14 or x = 2.64</h3>

Hope this helps you

6 0
3 years ago
Erin has n books. She sold half of her books and then bought 16 more. Which expression represents the number of books Erin has?
Margarita [4]

Answer:

n÷2+16

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
Which of the following are examples of irrational numbers?
andreyandreev [35.5K]
√4 + √16 = 2 + 4 = 6   <--- rational
√5 + √36 = √5 + 6   <--- irrational 
√9 + √24 = 3 + √24   <--- irrational
2 * √4 = 2 * 2 = 4   <--- rational 
√49 * √81 = 7 * 9 = 63   <---rational
3√12 = 3√(4 * 3) = (3 * 2)√3 = 6√3    <---irrational

Hope this helps ^-^
5 0
3 years ago
Read 2 more answers
Evaluate each expression below. <br> Click on "Undefined" as needed. <br> 0/9=<br> 3÷0 =
damaskus [11]
0/9 = 0 and 3/0 = undefined. Any number divided by 0 is undefined, while 0 divided by any number is just 0.
6 0
3 years ago
A 2-liter bottle is filed completely with water from a faucet in 10seconds. How much water is filled into the bottle each second
andreev551 [17]
In 10 seconds, in fills = 2 L
so, in 1 sec, it will fill = 2/10 L = 1/5 L = 0.2 L or 200 mL

In short, Your Answer would be 0.2 Liter or 200 milliliter

Hope this helps!
4 0
3 years ago
Read 2 more answers
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