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8090 [49]
3 years ago
11

What is always true about a line that slants downward from left to right

Mathematics
1 answer:
Olin [163]3 years ago
6 0

Answer:

the slope of the line is negative

Step-by-step explanation:

starting on the left and moving downwards gives the slope a negatie correlation

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The function m=30-3r represents the amount m (in dollars) of money you have after renting r video games.
san4es73 [151]
The domain of the equation are all the possible values of the independent variables that would make the equation reasonable, possible or true. In this item, the independent variable is r. This could take a value of 0 up to the point when m is equal to zero.
        m = 30 - 3r = 0
              r = 10

The domain is therefore [0, 10]. 

The range is the value of the dependent variable which would be from 0 to the point when no video game is played. This is, [0, 30]. 

The function is discrete because r and m cannot take every value in the number line. 
5 0
3 years ago
What is the least common denominator for these two rational expressions n^4/n^2+2n+1,7/n^2-8n-9
sergeinik [125]

Answer:

Step-by-step explanation:

n²+2n+1 = (n+1)(n+1)

n²-8n-9 = (n+1)(n-9)

the least common denominator for these two rational expressions is :

(n+1)(n-9)

7 0
3 years ago
Find the least common multiple of these two expressions.<br> 10v^6y^7 and 6w^4v^5y^3
egoroff_w [7]

10v⁶y⁷    = <u>2</u> * 5 * <u>vvvvv</u>v * <u>yyy</u>yyyy      

6w⁴v⁵y³ = <u>2</u> * 3 * wwww * <u>vvvvv</u> * <u>yyy</u>

GCF: 2v⁴y³

<em>The LCM is the GCF and everything leftover</em>

LCM: 2v⁴y³ * (5 * v * yyyy) * (3 * wwww)

       = (2 * 5 * 3) * (v⁴ * v) * (w⁴) * (y³ * y⁴)

       =        30           v⁵        w⁴        y⁷

Answer: LCM =  30v⁵w⁴y⁷

4 0
3 years ago
What is the area of a circle with a diameter of 28 inches? Answer in terms of Pi. *
rusak2 [61]

Formula for the area of a circle:

A = πr²         (A = Area         π(pi)          r = radius)

You know:

r = 14 inches          So substitute/plug it into the equation

[Radius is \frac{1}{2} (half) of the diameter. The diameter is 28, so half of 28 = 14]

A = πr²       Plug in 14 into "r" since r = 14

A = π(14)²      Find 14²  -->  14 x 14 = 196

A = 196π in²        Your answer is the 4th option

8 0
3 years ago
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krek1111 [17]
C

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