2. Which number is irrational? A. 319 B. 93 C. 419 D. 94

Mathematics

1 answer:

Orlov [11]3 years ago

7 0

C: 419.

Explanation:
It has an infinite number if decimals when you try to find the square root

You might be interested in

Solve the proportion t+4 / t-2 = 1/4

Lera25 [3.4K]

t+4 / t-2 = 1/4

t=-6 for your answer!

8 0

4 years ago

When the sum of 5 and three times a positive number is subtracted from the square of the number, 0 results. Find the number.

Juliette [100K]

$x-the\ number\\\\x^2-(5+3x)=0\\\\x^2-5-3x=0\\\\x^2-3x-5=0$

$Use\ the\ quadratic\ formula:\\a^2x+bx+c=0\\\\\Delta=b^2-4ac\\\\if\ \Delta > 0\ then\ x_1=\dfrac{-b-\sqrt\Delta}{2a}\ and\ x_2=\dfrac{-b+\sqrt\Delta}{2a}\\\\if\ \Delta=0\ then\ x_0=\dfrac{-b}{2a}\\\\if\ \Delta < 0\ then\ no\ solution$

$x^2-3x-5=0\\\\a=1;\ b=-3;\ c=-5\\\\\Delta=(-3)^2-4\cdot1\cdot(-5)+3+20=29 \ \textgreater \ 0\\\\\sqrt\Delta=\sqrt{29}\\\\x_1=\dfrac{3-\sqrt{29}}{2\cdot1}=\dfrac{3-\sqrt{29}}{2} \ \textless \ 0\\\\x_2=\dfrac{3+\sqrt{29}}{2\cdot1}=\dfrac{3+\sqrt{29}}{2} \ \textgreater \ 0$

$Answer:\ \boxed{x=\dfrac{3+\sqrt{29}}{2}}$

6 0

3 years ago

His two-way table contains data from a survey on the academic degrees earned by students in the United States in 2009. What is t

natali 33 [55]

<span>His two-way table contains data from a survey on the academic degrees earned by students in the United States in 2009.
</span>the relative frequency ofmale students earning an associates degree among all the males earning any degree in 2009 is : 0.23

4 0

3 years ago

Which of the following is equivalent to 0 equals 3 x squared minus 12 x minus 15 when completing the square?

skad [1K]

Answer:

x = 5, -1

Step-by-step explanation:

0 = 3x^2 - 12x - 15 or

3x^2 - 12x - 15 = 0

By solving for x, use the Quadratic Formula.

… x = 5 and/or -1

8 0

3 years ago

select all of the figures shown below that are unit cubes. (please explain what a unit cube is too and how to find one)

Marat540 [252]

Answer:

Unit Cube - Definition with Examples. A unit cube, sometimes called a cube of side 1, is a cube whose sides are 1 unit long. The volume of a 3-dimensional unit cube is 1 cubic unit, and its total surface area is 6 square units.

4 0

3 years ago