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Sonbull [250]
3 years ago
11

Two fair dice are rolled. What is the probability that the sum or product of the two numbers rolled is either 6 or 7?

Mathematics
1 answer:
zlopas [31]3 years ago
5 0

Answer:

Rolling a 7 is 1/6

Step-by-step explanation:

Add the numbers on the two dice and count how many times this sum is 7. If you do so you will find that the sum is 7 for 6 of the possible outcomes.

Hope this helps :|

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Chicken costs $3.20 per pound, and beef costs $4.59 per pound. What is the exact cost of 3 pounds of beef?
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Answer:

$13.77 for three pounds of beef

7 0
3 years ago
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At a coffee shop, the first 100 customers'
Paladinen [302]

\frac{1}{5}

Step-by-step explanation:

cold =25

large=5

\frac{5}{25}

divide it

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8 0
2 years ago
Find a simplified expression to represent the area of the triangle. The area formula for a triangle is bh, where b is the base a
snow_tiger [21]

Answer:4x^2+22x-12

Step-by-step explanation:

height=(2x+12)

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Area of =(8x^2+48x-4x-24)/2

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6 0
3 years ago
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What is the solution set of x2 + 5x + 1 = 0?
DerKrebs [107]

Answer:

\huge\boxed{\left\{-\dfrac{5+\sqrt{21}}{2};\ \dfrac{-5+\sqrt{21}}{2}\right\}}

Step-by-step explanation:

x^2+5x+1=0\\\\\text{Use the quadratic formula:}\\\\\text{For}\ ax^2+bx+c=0\\\\\Delta=b^2-4ac\\\\\text{if}\ \Delta < 0,\ \text{then the equation has no real solution}\\\text{if}\ \Delta=0,\ \text{then the equation has one real solution}\ x=\dfrac{-b}{2a}\\\text{if}\ \Delta>0,\ \text{then the equation has two real solution}\ x=\dfrac{-b\pm\sqrt{\Delta}}{2a}

\text{We have}\\\\a=1,\ b=5,\ c=1\\\\\Delta=5^2-4(1)(1)=25-4=21>0\\\\x=\dfrac{-5\pm\sqrt{21}}{2(1)}=\dfrac{-5\pm\sqrt{21}}{2}

3 0
3 years ago
4(x-4) solve and why I don't get it
Rudiy27
4 will multiply inside that brackets so
4(x-4)=4x-4
7 0
3 years ago
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