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nydimaria [60]
3 years ago
5

What is the solution to the equation4x-6=10x-3 ?

Mathematics
1 answer:
shepuryov [24]3 years ago
5 0

Answer:

-1/2 dont forget the negative!!!

Step-by-step explanation:

pull out like terms

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A study of 420 comma 000 cell phone users found that 134 of them developed cancer of the brain or nervous system. Prior to this
Vesnalui [34]

Answer: (0.00306,0.00334)

Step-by-step explanation:

Given : Sample size : n= 420000

The number of users developed cancer of the brain or nervous system =134

Then , the proportion of users developed cancer of the brain or nervous system :

p=\dfrac{134}{420000}\approx0.0032

Significance level : 1-0.90=0.1

Critical value : z_{\alpha/2}=1.645

The confidence interval for population proportion is given by :-

p\ \pm\ z_{\alpha/2}\sqrt{\dfrac{p(1-p)}{n}}\\\\=0.0032\pm (1.645)\sqrt{\dfrac{(0.0032)(1-0.0032)}{420000}}\approx0.0032\pm0.00014\\\\=(0.00306,0.00334)

Hence, the 90​% confidence interval estimate of the percentage of cell phone users who develop cancer of the brain or nervous system is (0.00306,0.00334).

4 0
3 years ago
What is the value of x ??
sineoko [7]

Answer:

24

Step-by-step explanation:

The cosine of an acute angle in a right triangle  is the ratio of the length of the adjacent side to the length of the hypotenuse.

\tt \cos A=\cfrac{x}{AC} \ \ \Rightarrow \ \ x=AC\cdot\cos A=24\sqrt{2}\cdot\cfrac{\sqrt{2}}{2}=24 \ units

4 0
3 years ago
The Value of X________
Nana76 [90]

Answer:

x = 59.5

Step-by-step explanation:

the angles  of a quadralateral equal 360 degrees, one angles is 90 degrees, the other i 151, 90 + 151 = 241, 360 - 241 = 119, 119/2 = 59.5, x = 59.5

5 0
3 years ago
How do I do this? Help me please ​
sergiy2304 [10]

Answer:

4.6 and 3.5 and 3.6.

Step-by-step explanation:

Because they have to be in a range between 3.7 and 4.3.

4 0
2 years ago
What is the distance between (-11, -20) and (-11, 5)?
PolarNik [594]
The distance between (-11, -20) and (-11,5) is 25. Since both of the x values are the same, we know that they are both on the same x line. For the y values, -20 and 5, Their difference from each other is 25. Therefore, the distance between those coordinates are 25.

6 0
3 years ago
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