Answer:
Below in bold.
Step-by-step explanation:
Height of stack
= 7 * 3/4
= 21/4
= 5 1/4 inches high.
All the angles in a triangle equal 180 degrees so 128 + (5x+10) + 9x = 180
Group the like values to get 138 + 14x = 180
Subtract 138 from 180 to get 14x = 42
Divide 42 by 14 to get x = 3
Therefore x = 3
EXPLANATION
If the first two terms of an arithmetic sequence are 7 and 4, then we know that an arithmetic sequence has a constant difference d and is defined by
Check wheter the difference is constant:
Compute the differences of all the adjacent terms:
Replacing terms:
4-7 = -3
The difference between all of the adjacent terms is the same and equal to
d = -3
The first element of the sequence is
Therefore, the nth term is computed by
d= -3
Refine
d= -3 ,
Now, replacing n=7
So, the answer is -11.
Answer:
f( 1 ) = 3
Step-by-step explanation:
Given the linear function, f(x) = -4x + 7, we could easily find f( 1 ) by substituting the value of the input, x = 1, into the function.
f(x) = -4x + 7
f( 1 ) = -4( 1 ) + 7
f( 1 ) = -4 + 7
f( 1 ) = 3
Therefore, the output value is f( 1 ) = 3.
<em>Answer:</em>
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<em>Step-by-step explanation:</em>
<em>Khan academy huh?</em>
- <em>put the numbers in order from least to greatest.</em>
- <em>find the median</em>
- <em>find the difference between the median and all of the other numbers.</em>
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<em>P.S. If you were looking for somebody to tell you the answer don't hold your breath.</em>
