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Blababa [14]
2 years ago
11

Which is an irrational number between -9 and -10?

Mathematics
2 answers:
ddd [48]2 years ago
8 0

Answer:

-sqrt85

Step-by-step explanation:

An irrational number is a number that cannot be written as fraction a/b where and b are integers

sqrt85 is simplified, and cannot be written as a/b with integers a and b, therefore -sqrt85 is irrational.

UkoKoshka [18]2 years ago
5 0

Answer:

maybe -9.1666 top second one?

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Name.<br> Solve using <br> Substitution <br> L<br> y = 3x + 2<br> 6x - 2y = 8
masya89 [10]

Answer:

No solution

Step-by-step explanation:

There is no solution to the system of equations y=3x+2 and 6x-2y=8, meaning that they are parallel to each other on a graph, with no points ever intersecting on each other's lines.

6 0
3 years ago
Five years ago Janeta age was one_fifth of her mother'sage .Now she is one_third of her mother's age.Find their present ages?
PilotLPTM [1.2K]

Answer:

J - Janeta's age  M - mother's age

A) (J-5) = .2 * (M-5)

B) J = (1/3) * M

Subtracting 5 from both sides of B:

B) J -5 = (1/3)M -5

then we substitute the right side of this into the left side of A and we get

(1/3)M -5 = .2 M -1

.333333333333M -5 = .2M -1

.1111111111111111111M = 4

Mother's Age = 36

Janeta's Age = 12

Step-by-step explanation:

5 0
3 years ago
Multiply the following complex numbers:<br>(7-3i)(8 + 4i)​
mel-nik [20]

Answer:

A

Step-by-step explanation:

Noting that i² = - 1

Given

(7 - 3i)(8 + 4i) ← expand factors using FOIL

= 56 + 28i - 24i - 12i²

= 56 + 4i - 12(- 1)

= 56 + 4i + 12

= 68 + 4i → A

3 0
3 years ago
Terrence walks 1/3mile in 1/12 hour. What is his walking speed in Miles per hour?
ohaa [14]

1/3 x 3 is one mile which is then 3/12 hours or 1/4 hours. Now multiply by 4 and you have

\frac{4 \: miles}{per \: hour}

4 0
3 years ago
The cost for a pack of 12 pencils is $3.24 . find the unit price in dollars per pencil. if necessary, round your answer to the n
Llana [10]
To getyour answer, just divided 3.24 by 12. You will get 0.27. So the answer is each pencil costs 27 cents or 0.27.
4 0
3 years ago
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