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3 years ago

Find the median 7,5,8,7,8,13

Mathematics

1 answer:

goblinko [34]3 years ago

7 0

In order to find median, you have to line up the numbers from least to greatest and then find the middle.

Least to greatest:

5 7 7 8 8 13

Answer:

8 + 7 = 15

15/2 =

7.5

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The LCM of 12 and 6 is 6. True or False

elena-s [515]

Answer:

false but Least common multiple (LCM) of 6 and 12 is 12.

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3 years ago

Read 2 more answers

What is 2160 minus 1600 long way

lilavasa [31]

Hey there, Lets solve this problem together.

The First step is to line up the numbers.

$= 2160

- 1600$

$\mathrm{Subtract\:each\:column\:of\:digits,\:starting\:from\:the\:right\:and\:working\:left}$

We calculate $0-0$ the result of which is $0$ 

We calculate $6-0$ the result of which is $6$ .

Since we get a negative number in the next column, we must take 1 from the next column and carry it over to this column. Now the number will be changed to 10.

We calculate $10+1-6$ , and the result is $5$ .

We calculate $2-1-1$ the result of which is $0$ .

Therefore,

$2160 - 1600 = 0560$

8 0

3 years ago

Form a polynomial using numbers -4,4,2 with a degree of 3

shtirl [24]

These three roots are sufficient to enable us to form a 3rd degree polynomial:

f(x) = (x+4)(x-4)(x-2) = (x^2 - 16)(x-2) = x^3 - 2x^2 - 16x + 32 (answer)

3 0

3 years ago

If 1 meter = 100cm then what is the relationship between m3 and cm3?

ddd [48]

If the 1m turns into 3m then he cm increases also by 3.The 3 meters would equal 300 cm.

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3 years ago

Read 2 more answers

PLS HELP IM FAILING MATH!

oksano4ka [1.4K]

Answer:

1. Never true

2. Never true

3. Bad question! Typo? (see discussion below)

4. Always true

5. Always false

Step-by-step explanation:

1. x - 13 = x + 1. Subtract x from both sides of the equation, and you get -13 = 1. False! (Never true!)

2. x + 1/2 = x - 1/2. Subtract x from both sides: 1/2 = - 1/2. False! (Never true!)

3. This one's weird, with two equal signs. That's not unusual; multiple equal signs are often used when a chain of equalities is being displayed. For instance, you can write (3)(2x + 5) = (3)(2x) + (3)(5) = 6x + 15. That's an example of the Distributive Property--the 3 is multiplied by both of the terms inside parentheses (shown after the first equal sign), then actually doing those multiplications produces the expression after the second equal sign.

OK! This question says 2(x + 3) = 5x = 6 - 3x. Take it in two parts.

a. 2(x + 3) = 5x Distribute the 2.

2x + 6 = 5x Now subtract 2x from both sides.

6 = 3x Divide both sides by 3.

2 = x So that first part is true only when x = 2. Gaa! That's not one of your answer choices. Now, check out the second part

b. 5x = 6 - 3x Add 3x to both sides.

8x = 6 Divide by 8

x = 6/8 = 3/4

It doesn't help to use the first and third expressions, either.

2(x + 3) = 6 - 3x Distribute the 2

2x + 6 = 6 - 3x Add 3x.

5x + 6 = 6 Subtract 6.

5x = 0 Divide by 5

x = 0

None of these is always false. None of these is always true.

4. x - 3 = 2x - 3 - x Simplify the right side by combining the x terms.

x - 3 = x - 3 Aha! Same expression on both sides! Always true

5. 3(x - 5) = 2(x - 5) + x Distribute the 3. Distribute the 2.

3x - 15 = 2x - 10 + x Combine the x terms on the right.

3x - 15 = 3x - 10 Subtract 3x

-15 = -10 (Always false!)

7 0

2 years ago