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zlopas [31]
2 years ago
11

I meant is -99 rational or irrational?

Mathematics
2 answers:
otez555 [7]2 years ago
5 0

Answer:

rational

Step-by-step explanation:

irrational number is number with infinite number behind the dot

ex: 1.111111111111....1111....1111(infinite number 1) is irraltional number

diamong [38]2 years ago
3 0

-99 is rational because we can write it as -99/1

A rational number is any number that can be written as a fraction, or ratio, of two whole numbers. The denominator cannot be zero.

Any integer or whole number is rational due to the fact we can just stick it over 1 to form a fraction. The reverse is not true. For example, the fraction 2/3 is rational but it's not a whole number.

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Mabel spends 4 hours to edit a 3 minute long video. She edits at a constant rate.How long does Mabel spend to edit a 9minute lon
alex41 [277]

Answer:

12 hours

Step-by-step explanation:

If it takes Mabel 4 hours to edit a 3 minute video and she edits at a constant rate, create an equation. 3/4=9/x and x=12

7 0
2 years ago
Help im stupid plzzzzz
Marianna [84]

Answer:

the third option: x + 2(2x - 4) = 10

Step-by-step explanation:

the question tells you that y = 2x - 4.

so, instead of writing y in the equation, just replace it with 2x - 4.

x - 2y = 10

becomes

x - 2(2x-4) = 10

4 0
3 years ago
What is the solution of the following systems of equations? y = 1/2x <br> y = -x -3
SVEN [57.7K]

Answer:

<em>x = -2,  y = -1</em>

Step-by-step explanation:

<u>System of Equations</u>

Solve the system:

y = 1/2x

y = -x - 3

Multiplying the first equation by 2:

2y = x

Substituting x in the second equation:

y = -2y - 3

Adding 2y:

3y = -3

y = -3/3

y = -1

And x = 2*(-1) = -2

Solution: x = -2,  y = -1

7 0
2 years ago
In rhombus ABCD, the diagonals AC and BDintersect at E. If AE=5 and BE=12, what is thelength of AB?
hram777 [196]

Diagonals that bisect each other are perpendicular and form a right angle.

AEB is a right triangle.

We can apply the Pythagorean theorem:

c^2 = a^2+b^2

Where c is the hypotenuse (longest side) and a and b the other 2 legs.

Replacing:

AB^2 = AE^2+BE^2

AB^2 = 5^2+12^2

AB^2 = 25+144

AB^2 = 169

AB=√169 = 13

Lenght of AB= 13

8 0
11 months ago
Which equation is equivalent to log3(x+5)=2
Lisa [10]
In exponential form: 10^2=3(x+5)
If we were to solve, x=85/3
7 0
3 years ago
Read 2 more answers
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