Answer:
y=−5x+5
Step-by-step explanation:
5x+y-13=0,(5,-20)
Rewrite in slope-intercept form.
y = − 5 x + 13
Using the slope-intercept form, the slope is − 5 . m = − 5
To find an equation that is parallel, the slopes must be equal. Find the parallel line using the point-slope formula.
Use the slope − 5 and a given point ( 5 , − 20 ) to substitute for x 1 and y 1 in the point-slope form y − y 1 = m ( x − x 1 ) , which is derived from the slope equation m = y 2 − y 1 x 2 − x 1 . y − ( − 20 ) = ( − 5 ) ( x − ( 5 ) )
Simplify the equation and keep it in point-slope form.
y + 20 = − 5 ⋅ ( x − 5 ) Solve for y .
y=−5x+5
The "mean" is just the normal arithmetic average that you are most likely already familiar with.
mean=(sum of elements)/(number of elements)
In this case:
mean=(2+28+2+20+22)/5
mean=74/5
mean=14.8
So the mean or average age of the trees is 14.8 years.
Answer:
2(8+4)
Step-by-step explanation:
We have 4 expressions here:
4(4+4):
Since 4*4=16
4(4+4)=16+16
4(4+8):
Since 4*4=16 and 4*8=32
4(4+8)=16+32
2(14+4):
Since 2*14=28 and 2*4=8
2(14+4)=28+8
2(8+4):
Since 2*8=16 and 2*4=8
2(8+4)=16+8
The answer is 2(8+4)!
Hope this helps!
Answer:
(f+g)(x) = x^2 +10x +7
Step-by-step explanation:
(f+g)(x) = f(x) +g(x) = (15x +7) +(x^2 -5x)
= x^2 +x(15 -5) +7
= x^2 +10x +7
