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Mamont248 [21]
2 years ago
7

Is the slope positive, negative, undefined, or zero?

Mathematics
1 answer:
Lady bird [3.3K]2 years ago
4 0

Answer:

can you do elaborate please

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9:45 on Tuesday Questions
LenaWriter [7]

Answer:  -2x + 5y = 8

Step-by-step explanation:

Since the lines must be parallel, the slopes must be the same, so keep the coefficients of x and y

Substitute the values of x and y from the given coordinate  (6,4) to find the new constant, b, the y-intercept.

-2x + 5y = b

-2(6) + 5(4) = b

-12 + 20 = b

8 = b

Rewrite the original equation substituting the new b for the original -15

-2x + 5y = 8

5 0
3 years ago
If a is directly proportional to b, and a = 25 when b = 35, find b when a = 40
koban [17]

If a is directly proportional to b, we have the relationship to be:

\begin{gathered} a\propto b \\ \therefore \\ a=kb \\ where \\ b=constant \end{gathered}

When a = 25, b = 35. Therefore, we can calculate the value of k as follows:

\begin{gathered} 25=35k \\ k=\frac{25}{35} \\ k=\frac{5}{7} \end{gathered}

Therefore, the relationship is given to be:

a=\frac{5}{7}b

When a = 40, we can calculate the value of b to be:

\begin{gathered} 40=\frac{5}{7}b \\ 40\times7=5b \\ 5b=280 \\ b=\frac{280}{5} \\ b=56 \end{gathered}

The value of b is 56.

7 0
1 year ago
30% of consumers prefer to purchase elecktronicks online you randomly select 8 consumers find the probability that the number of
Lapatulllka [165]

Answer:

see below

Step-by-step explanation:

Take the number of people surveyed and multiply by 30 %

8 * 30%

Change to decimal form

8 * .3

2.4

About 2.4 will purchase online

5 0
2 years ago
Is 15 a whole number <br> 1. yes<br> 2. no
Arada [10]

Answer:

1

Step-by-step explanation:

6 0
3 years ago
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ELEN [110]
The answer is B that's the answer
5 0
3 years ago
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