Answer:
a = 7
Step-by-step explanation:
I think, what you need to do, is first understand how to find the mean of anything: It's quite simple, actually, just add up all the numbers, then divide that number by the number of numbers. So, let's put it in perspective:
10, 3, 4, a, 6, 9, 10
7 is the mean. 7 is the number of numbers.
If, to find the mean is: 10 + 3 + 4 + a + 6 + 9 + 10= 7a ÷ 7, then: 10 +3 + 4+ 6 + 9 +10= 42
42 plus what divided by 7 is the question now.
42 + a ÷ 7= 7
So, 7 times 7, that's 49 minus 42 and you've got your answer: 7
Answer:
40
Step-by-step explanation:
Hope it helps, please give me Brainlest!
Hello, seems like you need help. Glad to help you.
To solve a slope with 2 given points, you must use the following equation:
-> Make sure to put the x on the top!
Plug the points into the equation.
2+6/-3-4
The slope will be 8/-7.
Hope this helped you out.
Answer:
-6n^4 -5n^3 +13n^2 +2n +3
organize the exponents from higher to lower.
Answer:
y = x + 1
Step-by-step explanation:
We can use the point-slope formula to write an equation for this problem. The point-slope formula states: <em>(y - y1) = m (x - x1) </em>
Where m is the slope and (x1 y1) is a point the line passes through.
Substituting the slope and the values from the point in the problem gives:
( y - 2 ) = 1 ( x - 1 )
We can also solve for y to put the equation in slope-intercept form. The slope-intercept form of a linear equation is: <em>y = mx + b</em>
y - 2 = 1x - 1
y = 1x - 1 + 2
<em>y = 1x + 1 or y = x + 1 </em> * are just the same.
