Answer:
7.
8.
Step-by-step explanation:
We are given two function, f(x) and g(x).
We want to find their addition and their subtraction, and we do this combining like terms.
The functions are:
7. Find (f+9) (x)
So
8. Find (f - g) (x)
So
a pool is the shape of a rectangle has a perimeter of 80 feet. The pool is 8 feet less wide than it is long. Find the length and
1 answer:
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Problem 1
<h3>Answer: 6.7</h3>----------------
Work Shown:
The two points are and
Apply the distance formula to get the following
The distance between the two endpoints is roughly 6.7 units. This is the same as saying the segment is roughly 6.7 units long.
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Problem 2
<h3>Answer: 3.6</h3>----------------
Work Shown:
We'll use the distance formula here as well.
This time we have the two points and
The distance between them is...
This distance is approximate.
1. Consider right triangle ABK. The hypotenuse AB is 6 un. and the leg AK is 3 un. Since the leg is half of the hypotenuse, then the opposite to the leg angle is 30°. This means that m∠ABK=30°. Then m∠BAK=90°-30°=60°.
2. By the Pythagorean theorem,
3. Consider right triangle ABD. In this triangle AD is hypotenuse and m∠ADB=90°-m∠BAD=90°-60°=30°. Then the leg AB opposite to the angle 30° is half of the hypotenuse and AD=12 un.
4. The area of parallelogram is