Answer:
<h2>
A. 1 and 1
</h2><h2>
D. 6 and 1/6
</h2><h2>
E -4/7 and -7/4</h2>
Step-by-step explanation:
The question is incomplete. Here is the complete question.
Which pairs of numbers represent a number and its reciprocal?
A. 1 and 1
B. 2/3 and -3/2
C. 1/2 and 5
D. 6 and 1/6
E -4/7 and -7/4
Reciprocal of a number is simply 1 divided by such number. For example the reciprocal of a is 1/a where is any number.
Based on the definition, the following pair of numbers represent a number and its reciprocal
1 and 1
The reciprocal of 1 is 1/1 which is equal to 1
6 and 1/6;
Since I can divide 1 by 6 to get 1/6 , this means that 1/6 is the reciprocal of 6. The pair 6 and 1/6 therefore represent a number and its reciprocal.
-4/7 and -7/4
reciprocal of -4/7 will be 1/(-4/7) = 1 * 7/-4 = -7/4. This shows that -7/4 is the reciprocal of -4/7 hence -4/7 and -7/4 represents a number and its reciprocal.
The ordered pair (10,63) is a solution to the inequality y < -0.2x² + 9x - 7. This illustrates that the statement is true.
<h3>What is an inequality?</h3>
It should be noted that an inequality simply means a statement of an order relationship between two numbers and algebraic expressions.
From the information given, the equation illustrated is:
y < -0.2x² + 9x - 7.
63 < 0.2(10)² + (9 × 10) - 7
63 < 20 + 90 - 7.
63 < 103
In this case, the ordered pair (10,63) is a solution to the inequality y < -0.2x² + 9x - 7. This illustrates that the statement is true since sixty there is less than one hundred and three.
Therefore, this is true.
Learn more about inequalities on:
brainly.com/question/11613554
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Complete question:
The ordered pair (10,63) is a solution to the inequality y < -0.2x² + 9x - 7. Please select the best answer from the choices provided
True
False
-5/10 this simplifies to -2/5
you need to get a common denominator which would be 20
5 10/20 + 8 8/20 + 8 5/ 20 =
21 23/20
21 + 1 3/20
22 3/20
We know that
in a right triangle
applying the Pythagoras theorem
c²=a²+b²----------> b²=c²-a²
where
c is the hypotenuse-------> c=8 yd
a and b are the legs of the triangle
a=6 yd
b=?
b²=c²-a²-----> b²=8²-6²-----> b²=64-36----> b²=28-----> b=√28---> 5.29 yd
the answer is
5.3 yd