Answer:
Make 7 jumps, each 0.2 units long. You end at 1.4, which is the product of 7 and 0.2.
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Answer:
5
x
−
1
y
=
5
x
-
1
Interchange the variables.
x
=
5
y
−
1
x
=
5
y
-
1
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y
=
x
5
+
1
5
y
=
x
5
+
1
5
Solve for
y
y
and replace with
f
−
1
(
x
)
f
-
1
(
x
)
.
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f
−
1
(
x
)
=
x
5
+
1
5
Step-by-step explanation:
She is 425 feet above the sea level, or the starting level.
Start by dividing all terms by 4, to reduce this expression: |x+1| < 3.
Case 1: x+1 is already positive. The abs. val. operator does not change
anything. Then x+1<3, or x<2.
Case 2: (x+1) is negative. The abs. val. operator, in effect, puts a - sign in
front of (x+1): -(x+1)<3. Distributing the - sign: -x - 1 < 3. Adding 1 to both sides: -x < 4. We want to solve for positive x, so we mult. both sides of
-x<4 by -1 AND change the direction of the inequality symbol:
x > -4
Thus, the solution set is (-4,2): All real numbers between -4 and 2.
This is the reflexive property
