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2 years ago

Write an equation of each line in standard form with integer coefficients y=-7x-9

Mathematics

1 answer:

Mashcka [7]2 years ago

5 0

Answer:

Take the y not the 7, or 9 and divide that by the qq. Before we divide it by the qq of its c we have to find the qq. I assume you already know the qq but if you don't heres how we find it. Take the 65 in the 9 by subtracting the 199 and then multiplying that by the same number we used in the begging. Y, which is and isn't a number at the same time. It is a letter, yes. But in this case it stands for a number. Assuming you already know the number, 15 you add that to 65, which would give you 80. Easy math, right? Haha. So to get your answer just multiply what you asked me in the first place. Hope this helps u!

Step-by-step explanation:

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You are to take a multiple-choice exam consisting of 100 questions with 5 possible responses to each question. Suppose that you

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Answer:

Step-by-step explanation:

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2 years ago

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2 years ago

Read 2 more answers

How is the series 9 + 13+ 17+ ... + 149 represented in summation notation?

VLD [36.1K]

Notice that

13 - 9 = 4

17 - 13 = 4

so it's likely that each pair of consecutive terms in the sum differ by 4. This means the last term, 149, is equal to 9 plus some multiple of 4 :

149 = 9 + 4k

140 = 4k

k = 140/4

k = 35

This tells you there are 35 + 1 = 36 terms in the sum (since the first term is 9 plus 0 times 4, and the last term is 9 plus 35 times 4). Among the given options, only the first choice contains the same amount of terms.

Put another way, we have

$\displaystyle 9 + 13 + 17 + \cdots + 149 = \sum_{k=0}^{35} (9 + 4k)$

but if we make the sum start at k = 1, we need to replace every instance of k with k - 1, and accordingly adjust the upper limit in the sum.

$\displaystyle 9 + 13 + 17 + \cdots + 149 = \sum_{k-1=0}^{35+1} (9 + 4(k-1))$

$\displaystyle 9 + 13 + 17 + \cdots + 149 = \sum_{k=1}^{36} (5 + 4k)$

7 0

2 years ago

The win-loss record for a football team is 15 wins and 9 losses. What percent of their games did they win?

Burka [1]

Answer:

62.5%

Step-by-step explanation:

To find percentage of win, we simply need to find the number of games won and divide it by the total number of games played. Then we will multiply that answer by 100 (to get percentage).

So,

Number of games won = 15

Total number of games = 15 + 9 = 24

Percentage of Win = $\frac{15}{24}=0.625=62.5$

Answer is 62.5%

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3 years ago

Define and compare radian measure to degree measure

Lelechka [254]

Radian: is the standard unit of angular measure, used in many areas of mathmatics.
degree: is a measuement of plane angle, defined by representing a full rotation as 360 degrees.

Both are two units for measuring angles. There are at least four such units, but degrees and radians are most likely to encounter high school and college.

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2 years ago