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3 years ago

What does the associative property state

Mathematics

1 answer:

TEA [102]3 years ago

6 0

Answer:

The Associative property states that no matter which terms you combine first, the answer would be the same.

For example:

5 + (6 + 7) = (5 + 6) + 7

~Senpai

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Define expression, term, coefficient, variable, Factor, and constant in your own words 100 points

Juliette [100K]

Answer:

there

Step-by-step explanation:

6 0

3 years ago

Solve the following system by any method. –8x – 8y = 0 –8x + 2y = –20

madam [21]

This one is simple since we already have the two x variables.equal. All we have to do is subtract the equations from one another to get the answer.
So i will subtract the left side by the other left side and the right side by the other right side

-8x - 8y -(-8x + 2y) = 0 -(-20)

distribute negative sign

-8x - 8y + 8x - 2y = 0 + 20

do the math
- 10y = 20
Y = -2

plug t into an equation
-8x -8 (-2) = 0

-8x + 16 = 0
-8x = -16
x = 2
answer (2, -2)

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3 years ago

A) 7xy? Degree and number of terms

jolli1 [7]

Answer:

1 and 1

Step-by-step explanation:

degree of 1 and 1 term.

8 0

2 years ago

2. Determine the sum of the first 400 ODD numbers.

il63 [147K]

Odd numbers take the form $2n-1$ , where $n\ge1$ is an integer. When $n=400$ , the last odd number would be 799. So we're adding

$S=1+3+5+\cdots+795+797+799$

By reversing the order of terms, we have

$S=799+797+795+\cdots+5+3+1$

and we can pair up terms in both sums at the same position to write

$2S=(1+799)+(3+797)+(5+795)+\cdots(795+5)+(797+3)+(799+1)$

so that we are basically adding 400 copies of 800, and from there we can find the value of the sum right away:

$2S=400\cdot800\implies S=160,000$

###

We could also make use of the formulas,

$\displaystyle\sum_{i=1}^n1=n$

$\displaystyle\sum_{i=1}^ni=\dfrac{n(n+1)}2$

We have

$S=\displaystyle\sum_{i=1}^{400}(2i-1)=2\sum_{i=1}^{400}i-\sum_{i=1}^{400}1=400(400+1)-400=400^2=160,000$

3 0

3 years ago

Three basketball teams measured the height of each player on their team. The table shows the mean and the mean absolute deviatio

Dimas [21]

Answer:

(A) and (D)

Step-by-step explanation:

It is given that Three basketball teams measured the height of each player on their team.

Team Mean height (cm) MAD (cm)

Bulldogs 165 6.9

Panthers 177 7.1

Warriors 176 4.8

From the information given, The heights of the Bulldogs’ players vary more than do the Warriors’ heights and The heights of the Panthers’ players and those of the Warriors vary about the same amount.

Therefore, option A and d are the correct statements about the data given.

4 0

3 years ago

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