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ryzh [129]
3 years ago
12

PLEASE SAY IF THE NUMBERS ARE RATIONAL OR IRRATIONAL. PLEASE NO LINKS.

Mathematics
2 answers:
Annette [7]3 years ago
8 0

Answer:

i think the third one and the last box is rational and the other one are not

Step-by-step explanation:

Gekata [30.6K]3 years ago
8 0
/22 is irrational
9/17 is rational
-/81 is rational
-20.-^80= I think is rational
18*sign* = irrational
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Please help, Thank youu!!
Elodia [21]

Answer:

80

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
Simplify the expression to a + bi form:<br> (-2 - 6i)?
mixer [17]

The expression (-2 - 6i)-(-2-4i) to a + bi form is 0 - 2i.

Complete question.

Simplify the expression to a + bi form:

(-2 - 6i)-(-2-4i)

Square root of any negative number are expressed as a complex number. For example i = √-1

Complex numbers are generally written in the format z = x+iy

Given the expression (-2 - 6i)-(-2-4i)), in expansion:

(-2 - 6i)-(-2-4i)

= -2 - 6i + 2+4i

Collect the like terms

= (-2 + 2) - 6i + 4i

= 0 - 2i

Therefore the expression (-2 - 6i)-(-2-4i) to a + bi form is 0 - 2i.

Learn more on complex number here: brainly.com/question/12375854

6 0
3 years ago
Find the value of x. Round to the nearest tenth.please help.
Serga [27]

Answer:

39.9

Step-by-step explanation:

A good trick to remember is SOH CAH TOA.

Sine = Opposite / Hypotenuse

Cosine = Adjacent / Hypotenuse

Tangent = Opposite / Adjacent

Here, we're given an angle and the opposite side, and we want to find the adjacent side.  So we need to use tangent.

tan 31° = 24 / x

x = 24 / tan 31°

x ≈ 39.9

5 0
3 years ago
Find the two numbers that have a<br> difference of 3 and a sum of 27.
polet [3.4K]
12 and 15 

15-12=3
15+12=27
5 0
3 years ago
Read 2 more answers
Thirty-one books are arranged from left to right in order of increasing prices. The price of each book differs by $2 from that o
user100 [1]
The answer for this problem is 2 since it is not specified whether it is adjacent to the right or adjacent to the left.
If it is adjacent to the right, the answer is:

p (k) = 2 * p(1) + 2 * k

If the is adjacent to the left, the answer is:

P (k) = 2 *p(1) +2 * (k-2)
6 0
3 years ago
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