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Assoli18 [71]
4 years ago
12

Identify the number that does not belong with the other three explain and explain your reasoning: -10 over two, -13.4, square ro

ot of 18, and 22.7 repeating
Mathematics
1 answer:
Dominik [7]4 years ago
6 0
Square root of 18 because it is the only irrational number
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Please help and no guessing please I need this.
vodka [1.7K]

Answer:

1. n + 8 = 10

2. \frac{n}{12}= 10

3. 8n - 6 = 34

4. 3(n + 12) = 45

5. No

6. Yes

Step-by-step explanation:

(only for questions 5 and 6)

5. If you substitute in y = 1, you get 1 * 49 = 0 or 49 = 0 which is not true.

6. If you substitute in b = 8, you get:

5(8-3)= 25\\5(5) = 25\\25 = 25

this is true.

7 0
3 years ago
25 POINTS. Radar used microwaved yo check the speed of cars. If a speed of the microwaves is 2 000 000 m/ s and the wavelength i
Virty [35]

Answer:

57971014.49 Hz or 5.79 * 10^7 Hz

Step-by-step explanation:

Given that:

Speed of microwave (v) = 2,000,000 m/s

Wavelength, λ = 0.0345 m

Frequency :?

Using the relation :

v = fλ

f = v / λ

f = 2,000,000 / 0.0345

f = 57971014.49 Hz

6 0
3 years ago
a map represents every 4 miles with 1 inch.if a school and a bank are actually 12 miles apart,how far apart are they on the map,
irakobra [83]

Answer:

3 inches

Step-by-step explanation:

4 miles = 1 in

12 miles = 3 inches

Multiply both side of equation by 3.

3 0
3 years ago
Find one value of x that is a solution to the
maksim [4K]

Answer: x = {+-sqrt(3), +-2*sqrt(3)}.

Step-by-step explanation:

(x^2 - 8)^2 + (x^2 - 8) = 20

▪︎ Let (x^2 - 8) be y.

Then,

y^2 + y = 20

y^2 + y - 20 = 0

D = b^2 - 4ac = 1 + 20*4 = 81 = 9^2

y1 = (-b - sqrt(D))/(2a) = (-1 - 9)/2 = -10/2 = -5

y2 = (-b + sqrt(D))/(2a) = (-1 + 9)/2 = 8/2 = 4

1) x^2 - 8 = -5

x^2 = 8 - 5

x^2 = 3

x = +-sqrt(3)

2) x^2 - 8 = 4

x^2 = 8 + 4

x^2 = 12

x = +-sqrt(12)

x = +-2*sqrt(3)

7 0
2 years ago
Please help me asap!!!
ololo11 [35]

G should be the correct answer

Hope this helps!

4 0
3 years ago
Read 2 more answers
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