Answer: 2a -5 + h
<u>Step-by-step explanation:</u>
f(x) = x² - 5x
f(a + h) = (a + h)² - 5(a + h)
= a² + 2ah + h² - 5a - 5h
f(a) = a² - 5a
f(a + h) - f(a) = a² + 2ah + h² - 5a - 5h - (a² - 5a)
= a² + 2ah + h² - 5a - 5h - a² + 5a
= 2ah - 5h + h²
= 2a - 5 + h
Answer:
line a and b are parallel, there is no perpendicular lines
Step-by-step explanation:
Looking at the slope of each line, you can identify whether the lines are parallel, perpendicularlar, or neither.
When the slopes are the same, they are parallel.
When the slopes have opposite sign and numerator and denominator flipped, they are perpendicular. Ex. and are perpendicular slopes.
Finding slope is using the formula:
Line a has slope =
Line b also has slope
Line c has slope 2
Since slope of line a and b are same, they are parallel.
Line c is not perpendicular to line a and b because the slope should have opposite sign and numerator and denominator flipped, which is 4 not 2.
The number 42 and then decrease it or subtract twice what ever he has in savings. 42-(2GS) GS is goarans savings. most of the time we would use a variable like x so it could be written as 42-(2x) depends on how the teacher wants it.
Answer: 1/2 of 12 = 1/4 of 24 and 1/3 of 90 = 2/3 of 45
Step-by-step explanation:
Ah clever. So you need two formulas.
1) Volume of the marble.
4(pi)r^3/3
= 4(pi)(1.4)^3/3
<span>= 11.49 (approx)
</span>
2) Formula for density.
D = M / V
= 9 / 11.49
= 0.78
0.78 < 1
Therefore the marble will float.