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LenKa [72]
3 years ago
7

Which of the following could be an equation of the line that is perpendicular to= 2x + 5

Mathematics
2 answers:
nataly862011 [7]3 years ago
8 0
Alright, I don't know what your choices are, but here's my input:
For a line to be perpendicular to another line, the slope needs to be the opposite reciprocal of the slope of the given line. Now, by opposite, I mean if your slope is positive, this one needs to be negative (or vice versa). For reciprocal, I mean flip the fraction over. In this case, we have a slope of 2, so its opposite is -2 & the reciprocal is -1/2. So, whatever line has a slope of -1/2 is your answer.

Hope this helps!
vaieri [72.5K]3 years ago
3 0
I say that it is line x+3
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kondor19780726 [428]

Answe

Step-by-step explanation:

4 0
3 years ago
Mean mode median range please help me
Anit [1.1K]

Answer:

Mean = 44.

Mean is the average.

Add all numbers:

(43 × 3) + (44 × 5) + (45 × 2) + 46

(129) + (220) + (90) + 46

= 485

Divide by number of points:

485 ÷ 11 = 44.090909 (09 repeating)

Round to 44.

Median = 44

Median is the middle-most number.

Line all the values up:

43, 43, 43, 44, 44, 44, 44, 44, 45, 45, 46

'Cross' numbers off from each side until you reach the middle- 44.

Mode = 44

Mode is the number that appears most often. 43 appears three times, 44 appears five, 45 appears twice, and 46 appears once. Five was the greatest reoccurrence. Therefore, 44 is the mode.

Range = 3

Range is the distance between the smallest value and the largest value.

Smallest number: 43

Largest number: 46

46 - 43 = 3

7 0
3 years ago
Rewrite the expression using Distributive Property, then simplify<br><br> -1(x-9)+4x
pentagon [3]
First ask yourselfhat needs to be dristributed.
That would be -1 (x-9)
To distribute you have to multiply the number out side of the parentheses (-1) by each term inside the parentheses( x and -9)
-1×x=-x
-1×-9=9
Now the expression is
-x+9+4x
To simplify you have to combine like terms (4x and-x)
4x-x=3x
Your answer is 9+3x or 3(3+x).
5 0
3 years ago
Let f(x) = 2x + 8, g(x) = x² + 2x – 8, and h(x)
klio [65]
The answer is (g-f)(2)
4 0
2 years ago
Drag numbers to write an equation for the line in slope-intercept form. Numbers may be used once, more than once, or not at all.
vfiekz [6]

Answer:

y = -4x + 5

Step-by-step explanation:

Here, we want to get the equation of the line that passes through the given points

The general form is;

y = mx + b

where m is the slope and b is the y intercept

To find the slope, we use the slope formula

this is ;

m = (y2-y1)/(x2-x1)

(x1,y1) = (0,5)

(x2,y2) = (2,-3)

m = (-3-5)/(2-0) = -8/2 = -4

To get the y-intercept we simply substitute one of the points

But we know that the y-intercept is the y-value when x = 0

From the point we can see (0,5) which means that the y-intercept is 5

so the equation of the line is;

y = -4x + 5

7 0
3 years ago
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