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4 years ago

Simplify the following problem using distributive property

Mathematics

1 answer:

masya89 [10]4 years ago

6 0

2x*x=2x^2
2x*-y=-2xy
3y*x=3yx
3y*-y=3
2*x=2x
2*-y=-2y
-3x*x=-3
-3x*-y=3xy
combine like terms and that is your answer

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What type of number is: 5? What type of number is 0?

Vlada [557]

Answer:

0 is rational

5 rational so u are correct

Step-by-step explanation:

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3 years ago

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2x+12.8=117.8 what is the value of x

n200080 [17]

Answer: 52.5

Step-by-step explanation:

2x+12.8=117.8. First, subtract 12.8 from both sides.

-12.8 -12.8

2x=105. Then, divide both sides by 2.

/2 /2

x=52.5.

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3 years ago

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How do you do 21 and 22?

ololo11 [35]

Answer:

21. d. 39

22. c. 20; 7

Step-by-step explanation:

21. This is straightforward evaluation of the function. Put the numbers 8 and -5 where x is in the function definition and do the arithmetic. Then find the difference of the results.

f(8) = 3·8 -2 = 22

f(-5) = 3·(-5) -2 = -17

f(8) - f(-5) = 22 - (-17) = 22 +17 = 39

22. The first part is similar to 21—evaluate the function for x=2.

f(2) = 24 -2·2 = 24 -4

f(2) = 20

Note that this result is sufficient to allow you to choose the correct answer.

However, we can also do the second part. Find x for f(x) = 10

f(x) = 24 -2x

10 = 24 - 2x . . . . . . substitute 10 for f(x)

-14 = -2x . . . . . . . . . subtract 24 from both sides

7 = x . . . . . . . . . . . . . divide both sides by -2

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4 years ago

Which of the following is a correct interpretation of the expression -4 + 13−4+13minus, 4, plus, 13?

7nadin3 [17]

Answer:

Step-by-step explanation:

-4 + 13 - 4 + 13 - 4 + 13

9 - 4 + 13 - 4 + 13

5 + 13 - 4 + 13

18 - 4 + 13

14 + 13

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3 years ago

Diego said that the awnser to the question “How many groups of 5/6 are in 1?” Is 6/5 or 1 1/5.Do you agree with his statement? E

kipiarov [429]

Answer:

Diego is correct.

There can be $\frac{6}{5}$ or $1\frac{1}{5}$ groups in 1.

Step-by-step explanation:

From the question statement given we find that we need to divide 1 into groups of $\\frac{5}{6}$ .

When we form groups from a given total, we divided the total size by the size of the group.

If we are dividing $P$ number of people in groups of $n$ number of people, then the expression to find the number of groups formed can be given as:

⇒ $\frac{P}{n}$

For this question the data given is:

$P=1$

$n=\frac{5}{6}$

So, the number of groups formed can be given as:

⇒ $\frac{1}{\frac{5}{6}}$

When divisor is a fraction, then we multiply the reciprocal of the divisor with the dividend.

⇒ $1\times\frac{6}{5}$

⇒ $\frac{6}{5}$

In order to convert fraction to mixed number we will divide numerator with denominator and then write the quotient as whole number, remainder as numerator and the denominator remains as it is.

On dividing 6 by 5, the quotient =1 and remainder =1. Thus the mixed number is:

⇒ $1\frac{1}{5}$

Thus, there are $\frac{6}{5}$ or $1\frac{1}{5}$ groups in 1. This matches with Diego's answer and hence he is correct.

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4 years ago