9514 1404 393
Answer:
Step-by-step explanation:
If Anna's age is represented by A, then 12 more than Anna's age will be ...
12 + A
Jason's age is said to be 12 more than Anna's age, so ...
J = 12 + A
__
The sum of their ages will be J + A. That is said to be 50, so ...
J + A = 50
_____
These equations can be solved by using the first to substitute for J in the second.
(12 +A) +A = 50
2A = 38 . . . . . . . . subtract 12
A = 19 . . . . . . . . . . divide by 2
J = 12 +19 = 31 . . . find Jason's age
Jason is 31; Anna is 19.
Answer:
4th
Step-by-step explanation:
make me as branalist
Answer: The value of c would be 26.514 lb.
Step-by-step explanation:
Since we have given that
Mean = 17 lb
Standard deviation = 3.3 lb
At 99% level of significance, z = 2.58
So, it becomes,
![Z=\dfrac{X-\mu}{\sigma}\\\\2.58=\dfrac{X-17}{3.3}\\\\2.58\times 3.3=X-17\\\\8.514+17=X\\\\X=25.514](https://tex.z-dn.net/?f=Z%3D%5Cdfrac%7BX-%5Cmu%7D%7B%5Csigma%7D%5C%5C%5C%5C2.58%3D%5Cdfrac%7BX-17%7D%7B3.3%7D%5C%5C%5C%5C2.58%5Ctimes%203.3%3DX-17%5C%5C%5C%5C8.514%2B17%3DX%5C%5C%5C%5CX%3D25.514)
So, the weight c would be
![c=25.514+1\\\\c=26.514](https://tex.z-dn.net/?f=c%3D25.514%2B1%5C%5C%5C%5Cc%3D26.514)
Hence, the value of c would be 26.514 lb.
if two triangles are similar then they are congruent
The area for a circle with a diameter of 8 cm is 50.24 cm². The area of a circle with a radius of 3 cm is 28.26 cm². 50.24 - 28.26 = 21.98 cm. So the difference is 21.98 cm.