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ch4aika [34]
3 years ago
12

Solve 12x+6 2 9x+ 12.

Mathematics
1 answer:
Nadusha1986 [10]3 years ago
6 0
Assuming that there are plus signs between the 6, 2, and 9 the answer is 21x+20
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2/3 of a day (in hours) explain also​
bezimeni [28]
Its 16
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the bakers at healthy bakery can make 270 bagels in 10 hours. how many bagels can they bake in 19 hours? what was the rate per h
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8 0
3 years ago
An article in Medicine and Science in Sports and Exercise ["Maximal Leg-Strength Training Improves Cycling Economy in Previously
Sholpan [36]

Answer:

[300.202 , 329.798]

Step-by-step explanation:

The 95% confidence interval is given by the interval

\large [\bar x-t^*\frac{s}{\sqrt n}, \bar x+t^*\frac{s}{\sqrt n}]

where

\large \bar x <em>is the sample mean  </em>

<em>s is the sample standard deviation  </em>

<em>n is the sample size (n = 7)  </em>

\large t^* is the 0.05 (5%) upper critical value for the Student's t-distribution with 6 degrees of freedom (sample size -1), which is <em>an approximation to the Normal distribution for small samples (n<30).</em>

Either by using a table or the computer, we find  

\large t^*= 2.447

and our 95% confidence interval is

\large [315-2.447*\frac{16}{\sqrt{7}}, 315+2.447*\frac{16}{\sqrt{7}}]=\boxed{[300.202,329.798]}

7 0
3 years ago
The triangles below are similar.<br> Find the value of x
11111nata11111 [884]

Answer:

23

Step-by-step explanation:

91/70=(29+x)/40

5 0
3 years ago
I Need Assistance With These
Svetlanka [38]

Answer:

<u>1. 40.97    2. 52.93    3. 32.00  4. 26.00 </u>

Step-by-step explanation:

remember that area =1/2 * b * h so to find base, you can make it the subject of formula i.e

b =area *h/2

or in the caseof h you can do

h= area * b/2

4 0
3 years ago
Read 2 more answers
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