Answer:
The answer is -4
Step-by-step explanation:
Hope this helps! :)
Answer: $85,000
Step-by-step explanation:
Given : In a given population of two-earner male-female couples, male earnings have a mean of $40,000 per year and a standard deviation of $12,000.
![\mu_M=40,000\ \ ;\sigma_M=12,000](https://tex.z-dn.net/?f=%5Cmu_M%3D40%2C000%5C%20%5C%20%3B%5Csigma_M%3D12%2C000)
Female earnings have a mean of $45,000 per year and a standard deviation of $18,000.
![\mu_F=45,000\ \ ;\sigma_F=18,000](https://tex.z-dn.net/?f=%5Cmu_F%3D45%2C000%5C%20%5C%20%3B%5Csigma_F%3D18%2C000)
If C denote the combined earnings for a randomly selected couple.
Then, the mean of C will be :-
![\mu_c=\mu_M+\mu_F\\\\=40,000+45,000=85,000](https://tex.z-dn.net/?f=%5Cmu_c%3D%5Cmu_M%2B%5Cmu_F%5C%5C%5C%5C%3D40%2C000%2B45%2C000%3D85%2C000)
Hence, the mean of C = $85,000
Formula of the area of a triangle:
A = hbb/2
Plug in the numbers.
26 · 26/2
= 338
Therefore, the area of the triangle is 338
Answer:
q=-1
Step-by-step explanation:
.8-.4q=.2q+1.4
-.2q -.2q
.8-.6q=1.4
-.8 -.8
-.6q= 0.6
/-.6 /-.6
q= -1