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Thepotemich [5.8K]
2 years ago
10

What is the answer for this question 5 + (x^2 - xy) - 4

Mathematics
1 answer:
zzz [600]2 years ago
3 0

Answer: x^2−xy+1

Step-by-step explanation:

simplify:

5+x^2−xy−4

5+x^2+−xy+−4

Combine Like Terms:

5+x^2+−xy+−4

(x^2)+(−xy)+(5+−4)

x^2+−xy+1

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A die is rolled. What is the probability that the number is a factor of 6 or more than 2? Does this scenario represent mutually
goblinko [34]

Factors of 6 are : 1,2,3 and 6.

Let us find probability of getting the number that is a factor of 6.

P(\text{ The number is a factor of 6})=\frac{4}{6} =\frac{2}{3}

Now let us find probability of getting a number more than 2 (3,4,5,6).

P(\text{ The number is a greater than 2})=\frac{4}{6} =\frac{2}{3}

We can see that these two events are mutually inclusive events. We can find probability of mutually inclusive events by formula P(\text{X or Y})=P(X)+P(Y)-P(\text{X and Y}).  

P(\text{ The number is a factor of 6 and greater than 2})=\frac{2}{6} =\frac{1}{3}

Now we will find probability of getting the number is a factor of 6 or more than 2 using above formula.

P(\text{ The number is a factor of 6 or greater than 2})=\frac{2}{3} +\frac{2}{3}-\frac{1}{3}    

P(\text{ The number is a factor of 6 or greater than 2})= \frac{4}{3}-\frac{1}{3}=\frac{3}{3}=1  

Therefore, our probability will be 1 and this scenario represents mutually inclusive events.  

6 0
3 years ago
Adam will use x black stone tiles and y gray stone tiles to cover his patio floor. Black stone tiles cost $5 each and gray stone
vesna_86 [32]

Answer: 165

Step-by-step explanation:him

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2 years ago
HELP MME WITH THIS PLEASE
Dennis_Churaev [7]

Answer:

0.84

Step-by-step explanation:

21/25 is equal to 0.84.

Hopefully this helps!

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2 years ago
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2(3x+1)=-10 pls help
worty [1.4K]

Answer:

x=-2 hope this helps! :)

Step-by-step explanation:

first you move the constant to the right

3x+1=-5

then you calculate

3x=-5-1

finally you divide both sides to get x alone

x=-2

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3 years ago
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