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mash [69]
3 years ago
12

How many pairs can be made from 8 different objects?

Mathematics
1 answer:
NeTakaya3 years ago
3 0
The correct answer is 31. I did it incorrectly the first time, but the answer is 31. :-) Thanks Olivia!
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Samson carries a big weighing 5.5 kg.How many grams is it ?​
Korvikt [17]

Answer:

5,500 grams

Step-by-step explanation:

it is a measurement in kilograms meaning onethousand grams. so its 5,500 grams

4 0
3 years ago
Read 2 more answers
What is the value of X?<br><br> x=
Sever21 [200]

Answer:

x=12

Step-by-step explanation:

All of the sides are the same length.

5x-22=4x-10=3x+2

5x-22=4x-10

x=12

3 0
3 years ago
Give the equation of the line perpendicular to y +7= -2(x - 6) through the<br> point (6,-3)
lilavasa [31]

<u>Note: this answer assumes the equation of the line can be put in slope-intercept form. </u>

Answer:

y + 3 = \frac{1}{2}(x-6)

Step-by-step explanation:

1) First, find the slope of y + 7 = -2 (x - 6). We can see that it's already in point-slope form, or y-y_1 = m (x-x_1) format. Remember that the number in place of the m is the slope. Therefore, -2 is the slope of that equation.

What we need is the slope that is perpendicular to that, though. So, find the opposite reciprocal of -2. To do this, change its sign, convert it into a fraction (-\frac{2}{1}), and flip its numerators and denominators. Therefore, the perpendicular slope would be \frac{1}{2}.

2) Now that we have a slope and a point the line passes through, we can write an equation using the point-slope formula, y-y_1 = m (x-x_1). In order to write an equation, the x_1, y_1, and m have to be substitute for with real values.

The m represents the slope. We already calculated that in the last step, so put \frac{1}{2} in place of the m. The x_1 and y_1 represent the x and y values of a point the line passes through. We know that the line has to pass through (6, -3), so substitute 6 for x_1 and -3 for y_1:

y - (-3) = \frac{1}{2}(x -(6))\\y + 3 = \frac{1}{2}(x - 6)

Therefore, (again, assuming that the line can be put in point-slope form) the answer is y + 3 = \frac{1}{2}(x-6).

5 0
3 years ago
Describe the location of point (−5, −5, 5) in three-dimensional coordinate space.
Diano4ka-milaya [45]
Here's a really cool website that let's you input 3D points!
http://technology.cpm.org/general/3dgraph/

From the attached picture you can see that the point has moved back 5 units, to the left 5 units, and up 5 units.


7 0
3 years ago
Read 2 more answers
What is the discriminant of: 2x^2 - 7x + 3
fgiga [73]
The discriminant is 25
7 0
2 years ago
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