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elena-s [515]
3 years ago
6

Which rational number does not have a reciprocal

Mathematics
1 answer:
Dmitriy789 [7]3 years ago
8 0

Answer:

the rational numbers that doesn’t have a reciprocal are [math]0 [/math] (which can also be expressed as [math]\frac {0} {x}, x \neq 0 [/math] ), and any number of the form [math]\frac {x} {0} [/math].

Step-by-step explanation:

You might be interested in
What is the height of the triangle? A) 17 units B) 34units C) 51units D) 68units <br><br> Help??
drek231 [11]

Answer:

51 units

Step-by-step explanation:

The ratio of the lengths of the sides of a 30-60-90 triangle is

short leg : long leg : hypotenuse = 1 : sqrt(3) : 2

The reason this is relevant here is that in your case, you start with an equilateral triangle, FGH. An equilateral triangle is also equiangular, so all angles are congruent and measure 60 deg.

m<F = m<FGH = m<H = 60 deg

When the height GR is drawn, <FGH is bisected creating two 30-60-90 degree triangles, FGR and HGR.

The altitude GR also bisects side HF, so

HR = FR = (1/2)HF = 17*sqrt(3)

In 30-60-90 degree triangle FRG, the short leg is FR; the long leg is GR; the hypotenuse is FG.

Now we use the ratio of the lengths of the sides of a 30-60-90 degree triangle.

short leg : long leg : hypotenuse = 1 : sqrt(3) : 2

We use only the short leg and long leg parts of the ratios.

17*sqrt(3) : GR = 1 : sqrt(3)

GR * 1 = 17 * sqrt(3) * sqrt(3)

GR = 17 * 3

GR = 51

8 0
3 years ago
The manager of the customer service division of a major consumer electronics company is interested in determining whether the cu
aniked [119]

Answer:

Option D

Step-by-step explanation:

The objective of the survey is to assess the satisfaction level of the customers.

Out of the options given, option D is the closest to be used as a basis for gauging the satisfaction level of customers. Option A is irrelevant to the subject under discussion, as it is bears no semblance to the topic.

Option B also has this same tendency, and tend to view the satisfaction from the customers annual income, and not from the firm or its products. Using this definitely could give a measurement error.

Option C talks on inability of the user/customer of the media player to set the time. This failure is borne by the user, and not an inherent fault in the media player. As such, using this as a basis could lead to a measurement error.

Option D is the most suited for the survey.

6 0
3 years ago
Does anyone know if each square weighs 5 pounds. what is the weight of a single triangle?
steposvetlana [31]
3 pounds bc there is 5 triangles for 15 pounds of squares
4 0
2 years ago
How do you solve the factoring of 3t^3-7t^2-3t+7
Serjik [45]

Step-by-step explanation:

<h3>t^2(3t-7) -1(3t-7)</h3>

(3t-7) (t^2-1)this is the answer

7 0
2 years ago
Choose the following which is COMPLETELY correct:
Vlada [557]

Answer:

D

Step-by-step explanation:

Mean = (4+4+5+8+9) / 5

            30 / 5

             6

Median = put them in order and the one in the middle is the median.

                4, 4, <u>5</u>, 8, 9

Mode = the most common

            <u>4, 4</u>, 5, 8, 9

     

5 0
3 years ago
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