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shepuryov [24]
3 years ago
12

Enter the value of n so that the expression (ny+25.7)+(−45.2y+13.9) is equivalent to (−33.7y+39.6). n=

Mathematics
1 answer:
kondor19780726 [428]3 years ago
7 0

Answer:

n=11.5

Step-by-step explanation:

Given:

The two expressions are:

(ny+25.7)+(-45.2y+13.9)=(n-45.2)y+39.6

-33.7y+39.6

If the above 2 expressions are equivalent, then the coefficients of y should be equal for both the expressions.

The coefficient of y in the first expression is:

(n-45.2).

The coefficient of y in the second expression is:

-33.7.

Therefore,

n-45.2=-33.7\\n=-33.7+45.2=11.5

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Y+1=3(x+2) in slope intercept form
dimaraw [331]

Answer:

y=3x+5

Step-by-step explanation:

y+1=3x+6

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What is 8.07 × 102 in standard form
SOVA2 [1]

Answer:

8070

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8.07

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7 0
2 years ago
Write an equation in Slope-Intercept Form using the table below. ​
Veseljchak [2.6K]

Answer:

y = x + 46

Step-by-step explanation:

When writing an equation of a line, keep in mind that you always need the following information in order to determine the linear equation in slope-intercept form, y = mx + b:

1. 2 sets of ordered pairs (x, y)

2. Slope (m)

3. Y-intercept (b)

First, choose two pairs of coordinates to use for solving the slope of the line:

Let (x1, y1) = (0, 46)

(x2, y2) =  (1, 47)

User the following formula for slope

m = \frac{y2 - y1}{x2 - x1}

Plug in the values of the coordinates into the formula:m = \frac{y2 - y1}{x2 - x1} = \frac{47 - 46}{1 - 0} = \frac{1}{1} = 1

Therefore, the slope (m) = 1.

Next, we need the y-intercept, (b). The y-intercept is the y-coordinate of the point where the graph of the linear equation crosses the y-axis. The y-intercept is also the value of y when x = 0. The y-coordinate of the point (0, 46) is the y-intercept. Therefore, b = 46.

Given the slope, m = 1, and y-intercept, b = 46, the linear equation in slope-intercept form is:

y = x + 46

Please mark my answers as the Brainliest if you find my explanations helpful :)

8 0
3 years ago
Which of the following is a solution to 2cos x + 1 = 0? 60° 120° 210° 300°
klasskru [66]
Rewrite   <span>2cos x + 1 = 0    as:

2 cos x = -1, and then cos x = -1/2

x must be in Quadrant II or Quadrant III, since the adj. side is negative.

Note that the angle 120 has adj. side -1 and hyp 2.  So 120 degrees is one solution.  

Now what about a possible 2nd solution, to be found in Quadrant III?  That would be -120 degrees, which has the same terminal line as does 240 degrees.

No soap.

So, the solution is 120 degrees.</span>
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3 years ago
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What is the slope between the points (-3, 7) and (-5, 4)​
IrinaVladis [17]

Answer:

3/2

Sorry for the bad handwriting.

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