Answer:
{ 11 , 19 , 41 , 61 , 89 } is only the two digits number having both their non-prime.
Step-by-step explanation:
C^2=a^2+b^2-2abcosC
13^2=10^2+11^2-2×10×11×cos(°)
169=100+121-220cos(°)
220cos(°)=100+121-169
220cos(°)=52
cos(°)= 13/55
°=cos-1(13/55)
°=76.328°
Answer:
295000
Step-by-step explanation:
It would 295,000
When you're dividing fractions, you've got to slip the second fraction then multiply them together. Once you've flipped it, you get
5/6 x 7/3
You then simply multiply the numerators and the denominators
5x7= 35
6x3= 18
Therefore, this becomes 35/18, which can be simplified to 1 17/18
Hope this helps :)
I'm pretty sure you're supposed to use Pythagorean Theorem, so here goes:
a^2+b^2=c^2
=8^2+b^2=10^2
=64+b^2=100
=b^2=100-64
=b^2=36
=b=6
So, AD=6
Then, 6*2=12
AC=12cm
