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serious [3.7K]
3 years ago
8

Which of the following expressions has 3 terms? A 8x + y - z B xyz C y3 + 1

Mathematics
2 answers:
ki77a [65]3 years ago
6 0

Answer:

The expression which has 3 terms is:

A. 8x+y-z

Step-by-step explanation:

The number of terms in each expressions are:

A. 8x + y - z

It has 3 terms

B. xyz

It has 1 term

C. y³ + 1

It has 2 terms

Hence, the expression which has 3 terms is:

A. 8x+y-z

Alja [10]3 years ago
5 0
Since C only has two and although it may look like B has three terms, when the letters are joined together like that they are basically just become one big term, so your answer would be A.
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Step-by-step explanation:

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Determine the area of each face of a cube 306.6
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find all the factors of 38,39 and 40. Do they have any factors in common? Explain how you can tell if some numbers have factors
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7 0
3 years ago
Solve this problem???​
Svetllana [295]

The denominator of the first term is a difference of squares, such that

4<em>a</em> ² - <em>b</em> ² = (2<em>a</em>)² - <em>b</em> ² = (2<em>a</em> - <em>b</em>) (2<em>a</em> + <em>b</em>)

So you can write the fractions as

(4<em>a</em> ² + <em>b</em> ²)/((2<em>a</em> - <em>b</em>) (2<em>a</em> + <em>b</em>)) - (2<em>a</em> - <em>b</em>)/(2<em>a</em> + <em>b</em>)

Multiply through the second fraction by 2<em>a</em> - <em>b</em> to get a common denominator:

(4<em>a</em> ² + <em>b</em> ²)/((2<em>a</em> - <em>b</em>) (2<em>a</em> + <em>b</em>)) - (2<em>a</em> - <em>b</em>)²/((2<em>a</em> + <em>b</em>) (2<em>a</em> - <em>b</em>))

((4<em>a</em> ² + <em>b</em> ²) - (2<em>a</em> - <em>b</em>)²) / ((2<em>a</em> - <em>b</em>) (2<em>a</em> + <em>b</em>))

Expand the numerator:

(4<em>a</em> ² + <em>b</em> ²) - (2<em>a</em> - <em>b</em>)²

(4<em>a</em> ² + <em>b</em> ²) - (4<em>a</em> ² - 4<em>ab</em> + <em>b</em> ²)

4<em>ab</em>

<em />

So the original expression reduces to

4<em>ab</em> / ((2<em>a</em> - <em>b</em>) (2<em>a</em> + <em>b</em>))

or

4<em>ab</em> / (4<em>a</em> ² - <em>b</em> ²)

upon condensing the denominator again.

8 0
3 years ago
a purse has $8 in dimes and quarters. there ten more dimes than quarters. Find the number of each type of coin.
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20 quarters = $5.00
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