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pochemuha
3 years ago
5

Please help it's the second one

Mathematics
2 answers:
marishachu [46]3 years ago
8 0
We need a better picture p
svlad2 [7]3 years ago
6 0
The question isnt coming up clearly like we cant see the full page do you think you could try to take amnother picture?
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What would the adverage be of 12 and 13 if thats possible to find one?
Dimas [21]

Answer:

12.5

Step-by-step explanation:

Average = (numbers added together)/ number of numbers

               =(12+13)/ (2)

               =25/2

              =12.5

5 0
3 years ago
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True or false a rectangle is a parallelogram with a right interior angle?
oee [108]
I definitely would say True. 
7 0
3 years ago
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Complete the number patterns <br><br> 1. 1,3,6,10,15,21,__,__<br><br> 2. 1,3,7,13,21, __,__
sweet-ann [11.9K]
23,26...................
5 0
3 years ago
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Evaluate the expression. Write your answer as a fraction in simplest form.<br> Thank you so much!
ziro4ka [17]

Answer:

\frac{1}{27}

Step-by-step explanation:

Using the rule of exponents

\frac{a^{m} }{a^{n} } with n > m

= \frac{1}{a^{(n-m)} }, thus

\frac{3^{5} }{3^{8} } = \frac{1}{3^{(8-5)} } = \frac{1}{3^{3} } = \frac{1}{27}

7 0
3 years ago
If v1 = (2,-5) and v2 = (4,-3), then the angle between the two vectors is _________. Round your answer to two decimal places.
siniylev [52]
The angle between two vectors is given by:
 cos (x) = (v1.v2) / (lv1l * lv2l)
 We have then:
 v1.v2 = (2, -5). (4, -3)
 v1.v2 = (2 * 4) + (-5 * (- 3))
 v1.v2 = 8 + 15
 v1.v2 = 23
 We look for the vector module:
 lv1l = root ((2) ^ 2 + (-5) ^ 2)
 lv1l = 5.385164807
 lv2l = root ((4) ^ 2 + (-3) ^ 2)
 lv2l = 5
 Substituting values:
 cos (x) = (23) / ((5.385164807) * (5))
 x = acos ((23) / ((5.385164807) * (5)))
 x = 31.33 degrees
 Answer:
 
The angle between the two vectors is:
 
x = 31.33 degrees
3 0
3 years ago
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