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Butoxors [25]
2 years ago
15

Which expression is equivalent to 10x+9+10x+1010x+9+10x+10?

Mathematics
2 answers:
Bumek [7]2 years ago
7 0

Answer:

ybcdafhuaydf

Step-by-step explanation:

i

dsf

ds

fds

f

dsf

Damm [24]2 years ago
5 0

: 10x + 10x +1010+ 10x= 1040x

9+9=18

Answer 1014x+ 18

Step-by-step explanation:

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Descent, Inc., produces a variety of climbing and mountaineering equipment. One of its products is a traditional three-strand cl
Rainbow [258]

Solution :

Assuming $\sigma_1^2=\sigma_2^2$

We have to test

$H_0:\mu_1=\mu_2$

Against H_a: \mu_1 \neq \mu_2

Level of significance, $\alpha = 0.05$

$s_p=\sqrt{\frac{(n_1-1)s_1^2+ (n_2-1)s_2^2}{n_1+n_2-2}}$

$s_p=\sqrt{\frac{(25-1)(425)^2+ (20-1)(415)^2}{25+20-2}}$

   = 420.6107

Under H_0, the t-statistics is as follows:

$t=\frac{(\overline{x_1} - \overline{x_2})}{s_p\sqrt{\frac{1}{n_1}+\frac{1}{n_2}}} \sim $             $\text{t with }(n_1+n_2-2) \ DF$

$t=\frac{(7200-7087)}{(420.6107)\sqrt{\frac{1}{25}+\frac{1}{20}}}$

 = 0.90

DF = (25 + 20 - 2)

    = 43

P-value of the test = 0.375

Since the p value is more than 0.05, we fail to reject our null hypothesis.

There is no difference between then mean tensile strength of the ropes that is produced in the Bozeman and Challis.

3 0
3 years ago
Find (f+g)(x) if f(x)=2/x+1 and g(x)=x-2
Semmy [17]
<span>(f+g)(x) if f(x)=2/x+1 and g(x)=x-2  

Add f and g together:     (f+g)(x) = (2/x) + 1 + x - 2 = (2/x) + x - 1</span>
4 0
3 years ago
What is the total cost? answer correctly for brainliest please and thank you!
rosijanka [135]
The total cost is $41.60
5 0
2 years ago
I NEED HELP PLZ!!!!!! 20 POINTS
Amanda [17]

Answer:

1 is c

2 is d

3 is a

Step-by-step explanation:

Sorry it took a bit not pretty good at these but i used an app called desmos and it basically gives the answer

5 0
3 years ago
What is the area of georgina rounded to the nearest mile 59,424.77
AleksAgata [21]
<h2>Answer:  </h2>

59,425 sq mi  

<h2>Step-by-step explanation:  </h2>

When you want to round to the units place, you look at the digit in the number that is in the place to the right of that: the tenths place. Here, that digit is 7, which is more than 4. Because that digit is more than 4, 1 is added to the units place and all the digits to the right of that are dropped.  

This gives you 59,424 +1 = 59,425.    

If the tenths digit were 4 or less, no change would be made to values in the units place or to the left of that. The tenths digit and digits to the right would be dropped.  

... 59,424.3 ⇒ 59,424 . . . . . for example

3 0
3 years ago
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