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xxTIMURxx [149]
3 years ago
6

Please help me solve this. I really don’t get it

Mathematics
1 answer:
Yuki888 [10]3 years ago
8 0
The symbol is a representative of Pi. A endless number that equates to the diameter of a circle. It is asking what type of number group it belongs to
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Determine the equivalent system for the given system of equations <br> -2x-3y=7<br> 4x+y= -2
alina1380 [7]

Answer:

ok i will do that

Step-by-step explanation:

8 0
3 years ago
To which place value is the number rounded? 8.293 to 8.29?
e-lub [12.9K]
It is rounded to the hundredths. 
7 0
3 years ago
Read 2 more answers
PLEASE HELP ME
stiv31 [10]
Since it's a right triangle you can use the Pythagorean theorem or Trig (Soh Cah Toa).

I'll just use the Pythagorean theorem : a² + b² = c²
a = 9
b = x
c = 18

9² + x² = 18²
81 + x² = 324
x² = 324 - 81
x² = 243
x = √(243)

factor 243 to find a perfect square

x = √(3*81)
x = 9√(3)<u />
5 0
3 years ago
What is the definition of csc θ ?
Greeley [361]
Csc is the inverse of sin. This means the formula in regards to a triangle for csc is h/o, unlike o/h for sin. csc can also be knows as 1/sin. 
3 0
3 years ago
You wish to find a 95% confidence interval for the mean number of times men change channels with a remote control during a comme
gogolik [260]
For margin of error to be a maximum of 3:
3 = z*(SD / sqrt(n)), where z is the z-score, SD is the standard deviation and n is the sample size.
z = 1.96 for a 95% confidence interval, and we are given SD = 15.
3 = 1.96*15/sqrt(n)
sqrt(n) = 9.8
n = 96.04 ~ 96 commercials.

4 0
3 years ago
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