Two numbers have their own reciprocals. What are they?

Answers

Answer 1

Answer: The two numbers that are the same as their reciprocal are 1 and -1.

The reciprocal of a/b is b/a.

The reciprocal of 1 is 1.

1 is nothing but 1/1. And if you flip the numerator and denominator, you get 1/1 which is 1.

The reciprocal of -1 is -1.

-1 is nothing but -1/1. And if you flip the numerator and denominator, you get 1/-1 which is -1.

The only two numbers that have their own reciprocals are 1 and -1.

Answer 2

Answer: The two numbers that have their own reciprocals is 1 and -1

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PLEASE HELP.....................

Answers

Answer:

I believe the answers are C, D, and E. Sorry if I am wrong.

2 answers: choice B, choice F

Explanation:

The discriminant is

D = b^2 - 4ac

D = (-5)^2 - 4(3)(-1)

D = 25 + 12

D = 37

This means 37 is under the square root, and we know the answers are B and F due to this. Also note with these two answer choices, they are in the form $(-b \pm √(D))/(2a)$ where...

a = 3, so 2a = 2*3 = 6
b = -5, so -b = -(-5) = 5

Choices A, C, D, and E can be eliminated as the discriminant for these is D = 13.

Can someone help me with my question? Thank you if ya did ;-;

Answers

The answer is E. Which is none of above

the answer would be C because 7.76/4 = cost of one gluestick, then you times both sides by 13, which shows the value of 13 gluestick

A machine uses an input force of 200 newton to produce an output force of 800 newtons. What is the mechanical advantage of the machine?

Answers

we just need to subtract one number from the other:
mechanical advantage = output - input
= 800 - 200
= 600
hence the mech. advantage of the machine is 600 newtons

Answer:

wrong

Step-by-step explanation:

200 -800 is well i dobn't know i need friends i name is falling water i have no friends

PLEASE HELP ME!!What is |9|?
A.
–9

B.
0

C.
9

D.
18

Answers

Absolute value takes the distance of the number, not the direction. That means that the absolute value of a number would always be a positive.

|9| = 9

Answer: 9

Because absolute value means the number distance away from zero, [9] is 9.
Answer: C. 9
Xtra info: [-9] would just mean 9, that is how far it is away from 0.

Describe how you could draw a diagram for a problem about finding the total length for 2 strings, 15 inches long and 7 inches long.

Answers

Answer: You could add the strings together to get 22 inches.

For a diagram of this simply draw two line segments that are right next to each other.

You could measure and label the smaller one with 7 units and the larger one with 15 units. Then, anyone could just count to 22 to find the total.

Select the number line model. A, B, or C.

Answers

Answer:

I would say C, None of the above.

Step-by-step explanation:

Due to the fact that it says 8-1, so the number line should go to 8 down to 7.

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