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Paul [167]
4 years ago
12

Which is a irrational number...??????????????????????????? HELP

Mathematics
2 answers:
damaskus [11]4 years ago
8 0

Answer:B

Step-by-step explanation: because a \sqrt{19} Is irrational by definition and 81^.5 is 9 its B

Anon25 [30]4 years ago
8 0

Answer: the square root of 19 is the irrational number

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geniusboy [140]
The perimeter would be 9. 

7 0
4 years ago
Need help solving algebraically!
alekssr [168]
We need to account for both x values on either side of the length, and width.
Thus, the length becomes 10 + x + x = 10 + 2x
and the width becomes 5 + x + x = 5 + 2x

For the second question, I'm assuming we don't account for the area that is covered by the garden.
Then we can say that the path is measured by: (5 + 2x)(10 + 2x) - 50, which is the area of the garden itself.

(5 + 2x)(10 + 2x) - 50 = 54

Expanding the brackets:
50 + 10x + 20x + 4x^{2} - 50 = 54
4x^{2} + 30x = 54
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2x^{2} - 3x + 18x - 27 = 0
x(2x - 3) + 9(2x - 3) = 0

(x + 9)(2x - 3) = 0
x = -9, or x = 3/2

Since x > 0, then x ≠ -9
Thus, the only x-value we can take is x = 3/2
6 0
3 years ago
What is f(g(x)) if f(x)= 4x²+3x-4 and g(x)=2x​
Yuri [45]
I don’t know sorry I just need the points
5 0
3 years ago
What is the difference written in scientific notation?
masha68 [24]

Answer:

Step-by-step explanation:Cuando un número se escribe en notación científica, el exponente te dice si el término es un número muy grande o muy pequeño. Un exponente positivo indica un número grande y un exponente negativo indica un número muy pequeño que está entre 0 y 1.

8 0
4 years ago
Read 2 more answers
Find the value(s) of the variable for which the rational expression is not defined 4/5x
Westkost [7]
Ok so remember tha tdividining by 0 is undifnined
therfor
4/(5x)
if x=0 then it is undifined
8 0
3 years ago
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