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2 years ago

Is √7 a rational number? why or why not? Explain

Mathematics

2 answers:

Contact [7]2 years ago

8 0

Answer:

Is the Square Root of 7 Rational or Irrational? A rational number is defined as a number that can be expressed in the form of a quotient or division of two integers, i.e. p/q, where q is not equal to 0. ... Due to its never-ending nature after the decimal point, √7 is irrational.

Veronika [31]2 years ago

3 0

Answer: √7 is irrational because the square root of 7 isn't a perfect root.

Step-by-step explanation:

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Which statement is true regarding the functions on the graph

vaieri [72.5K]

Answer:

Its A

2021 on edge

Step-by-step explanation:

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2 years ago

Solve for x. x - 10 = -30

o-na [289]

I believe it is -20.
Hope that helped you out.

7 0

2 years ago

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Write the equation for a parabola with a focus at (-8, -1) and a directrix at y = − 4.

Sidana [21]

Answer:

y = 1/6 x^2 + 8/3 x + 49/6

Step-by-step explanation:

This is a parabola which opens upwards.

The distance of a point (x, y) from the focus is

√[(x - -8)^2 + (y - -1)^2] and

the distance of the point from the line y = -4

= y - -4

These distances are equal for a parabola so:

√[(x - -8)^2 + (y - -1)^2] = y + 4

Squaring both sides:

(x + 8)^2 + (y + 1)^2 = (y + 4)^2

x^2 + 16x + 64 + y^2 + 2y + 1 = y^2 + 8y + 16

x^2 + 16x + 64 + 1 - 16 = 8y - 2y

6y = x^2 + 16x + 49

y = 1/6 x^2 + 8/3 x + 49/6 is the equation of the parabola.

4 0

3 years ago

A herd of 62 horses has 3 white and some black horses. What is the ratio of black horses to all horses?

larisa [96]

The ratio I think would be 59:3

4 0

3 years ago

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Glenda receives a salary of $4,792 bimonthly. Find Glenda’s earnings per year.

Andre45 [30]

Answer: $28,752

Explanation:

The definition of bimonthly is an event that happens once in two months. $-bi$ represents "two", while $-monthly$ represents "event that happens by month.

Given that Glenda receives a salary of $4,792 bi-monthly, we are required to find the earnings per year.

There are 12 months in each year, and if the given value is a 2-month value, then we shall divide 12 by 2 to find that there is in total 6 of the 2-month value.

$12/2=6$

Finally, we shall multiply the total number with the salary, which will be $4,792 times 6.

$4792*6=\boxed{28752}$

Hope this helps!! :)

Please let me know if you have any questions

3 0

2 years ago