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klio [65]
3 years ago
8

Solve the inequality 45 - 9.9x < - 4.9x

Mathematics
1 answer:
Elena-2011 [213]3 years ago
7 0

Answer:

\large\boxed{x>9\to x\in(9;\ \infty)}

Step-by-step explanation:

45 - 9.9x

You might be interested in
In a triangle, the measure of one angle is five more than the first and the third angle is one more than four times the first.
katrin [286]

Answer:

A= 29

B=34

C=117

Step-by-step explanation:

<u>A triangle has three sides and a triangle always adds up to be 180</u>

A + B + C = 180

B = A + 5

C = 4A + 1

Plug in.

A + A + 5 + 4A + 1 = 180

6A + 6 = 180

6A = 174

A = 29

<u>Now since you found A, find the other two by plugging A in!</u>

C = 4(29) + 1

C = 117

<u>Plug in the B equation</u>

B = 29 + 5

B=34

Check your answers

29 + 117 + 34 = 180

4 0
3 years ago
A random sample of n = 8 E-glass fiber test specimens of a certain type yielded a sample mean interfacial shear yield stress of
ANTONII [103]

Answer:

32.9-2.365\frac{4.9}{\sqrt{8}}=28.80    

32.9+2.365\frac{4.9}{\sqrt{8}}=37.00    

Step-by-step explanation:

Information given

\bar X=32.9 represent the sample mean for the sample  

\mu population mean (variable of interest)

s=4.9 represent the sample standard deviation

n=8 represent the sample size  

Confidence interval

The confidence interval for the mean is given by the following formula:

\bar X \pm t_{\alpha/2}\frac{s}{\sqrt{n}}   (1)

the degrees of freedom are given by:

df=n-1=8-1=7

Since the Confidence is 0.95 or 95%, the value of \alpha=0.05 and \alpha/2 =0.025, and the critical value for this cae would be t_{\alpha/2}=2.365

Now we have everything in order to replace into formula (1):

32.9-2.365\frac{4.9}{\sqrt{8}}=28.80    

32.9+2.365\frac{4.9}{\sqrt{8}}=37.00    

6 0
3 years ago
Does anyone think they can help?
Jobisdone [24]
(-3,6) not included points
4 0
3 years ago
5. Divide 6/3 by 12.<br> A. 1/2<br> B. 12/13<br> C. 13/12<br> D. 9/16
Alex787 [66]
The answer would be A. 1/2
8 0
4 years ago
Read 2 more answers
Help please!! :((((((((!!!!!!!!!
AlekseyPX
Look back at the rules of exponents. 

(a^n)^d = a^(n×d) 

Therefore, 
(17^1/7)^7 
=17^(1/7×7) 
=17^(7/7) 
=17^1 or 17 

Hope I helped :) 
6 0
3 years ago
Read 2 more answers
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