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rosijanka [135]
3 years ago
13

Which of the following equations are equivalent to -2m - 5m - 8 = 3 + (-7) + m?

Mathematics
2 answers:
Anika [276]3 years ago
8 0
The answer is 2 ...............

12345 [234]3 years ago
8 0
3............;::::::::::::::
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A stone is dropped from the edge of a roof, and hits the ground with a velocity of -185 feet per second. How high (in feet) is t
34kurt

Answer:

The height of the roof is 534.8 feet.

Step-by-step explanation:

Let h be the height of the roof.

We know the formula

v^2-u^2=2gh

Since, the stone is dropped from the edge of the roof hence, the initial velocity should be zero. Thus, u = 0

v^2-0=2gh\\h=\frac{v^2}{2g}

Now, we have

v = -185 feet per second

g = 32  feet per square second

On substituting these values, we get

h=\frac{(-185)^2}{2\times 32}\\\\h=534.8

The height of the roof is 534.8 feet.

4 0
3 years ago
Read 2 more answers
15, 17, 22, 28, 32, 40, 16, 24, 25, 38 what is the value for qurtile 1?
Artist 52 [7]

Answer:

17

Step-by-step explanation:

5 0
3 years ago
What is the slope-intercept form of the function described by this table?
Pavel [41]

Answer:

y = -4x +2

Step-by-step explanation:

As x-values increase by 1, y-values decrease by 4. The slope of the line is ...

... m = (change in y)/(change in x) = -4/1 = -4

We can use the first (x, y) pair as a point to use in the point-slope form of the equation of a line. That form can be written, for slope m and point (h, k) ...

... y = m(x -h) +k

using m = -4 and (h, k) = (1, -2), we can fill in the numbers to get ...

... y = -4(x -1) -2

... y = -4x +4 -2 . . . . eliminate parentheses

... y = -4x +2 . . . . . . slope-intercept form

_____

<em>Alternate approach</em>

After you recognize that a change in x of 1 gives a change in y of -4, you can work backward one step to find the table value for y corresponding to x=0. That will be -2+4 = +2. Now, you know both the slope (-4) and the y-intercept (+2), so you can write the equation directly from this knowledge:

... y = -4x +2

7 0
3 years ago
Find the perimeter of the parallelogram with these vertices.
blondinia [14]

Check the picture below.

so we can say that two sides are "4" each in length, since opposite sides are equal, let's find how long the slanted sides are.

~~~~~~~~~~~~\textit{distance between 2 points} \\\\ (\stackrel{x_1}{-4}~,~\stackrel{y_1}{2})\qquad (\stackrel{x_2}{3}~,~\stackrel{y_2}{5})\qquad \qquad d = \sqrt{( x_2- x_1)^2 + ( y_2- y_1)^2} \\\\\\ d=\sqrt{[3 - (-4)]^2 + [5 - 2]^2}\implies d=\sqrt{(3+4)^2+3^2} \\\\\\ d=\sqrt{49+9}\implies d=\sqrt{58} \\\\[-0.35em] ~\dotfill\\\\ \stackrel{\textit{\Large Perimeter}}{4~~ + ~~4~~ + ~~\sqrt{58}~~ + ~~\sqrt{58}\implies 8+2\sqrt{58}}

4 0
2 years ago
Someone help I need help
kirill [66]

Ronald originally had 160 dollars.

123.45 + 36.55 = 160. That means that he had 160 dollars.

3 0
3 years ago
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