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vfiekz [6]
2 years ago
13

A box contains 12 plastic forks and 6 plastic knives. If two utensils are chosen at random from the box without replacement, wha

t is the probability that they are different?
Mathematics
1 answer:
kipiarov [429]2 years ago
3 0
Well one will be a knife and one will be fork
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Type the correct answer in each box. Use numerals instead of words. Solve the equation by completing the square. x2 + 20x + 82 =
VikaD [51]
7=x^2+20x+82
0=x^2+20x+75

What adds to 20 and multiplies to 75? 5 and 15.

x^2+5x+15x+75
x(x+5) 15(x+5)
(x+15) (x+5)

Zeroes are x= -5 and x= -15
5 0
3 years ago
What happens when you get a negative square root in the quadratic formula?
prisoha [69]
Edited : I apologise I misunderstood the question.

You can solve the equation.
7 0
3 years ago
The solution set for the equation x - 6x + 10 = 0 is
Oxana [17]

Answer:

{3-i, 3+ i}

Step-by-step explanation:

hello : the equation is :  x²-6x+10 =0

because : (3+i)²-6(3+i)+10 = 9+6i+i²-18-6i+10 =9+6i-1-18-6i+10 =0...right

same method for 3-i... (all quadratic equation have two conjugate solution)

8 0
3 years ago
Addison earn $25 mowing her neighbor's lawn then she loaned her friend $18 and got 50 from her grandmother for her birthday she
yarga [219]

Solution: The total money did addison have to begin with is $29.

Explanation:

Let the addison begin with money $x.

It is given that the addison earn $25 from his neighbor and $50 from her grandmother. So total money addison has \$x+\$25+\$50=\$x+\$75

She loaned her friend %18.

Now she has \$x+\$75-\$18=\$x+\$57

It is given that she had $86.

\$x+\$57=\$86\\\$x=\$86-\$57\\\$x=\$29

Therefore, the total money did addison have to begin with is $29.

4 0
3 years ago
Read 2 more answers
A piece of cloth is 12 yards in length. if 3/4 of the cloth is used for bedsheet, how many yards of the cloth will be left?
larisa [96]

Answer:

9 yards

Step-by-step explanation:

multiply the length of the cloth by the length used for bedsheet

12*\frac{3}{4}\\9 yards

3 0
2 years ago
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