Answer:
b = - 0.389
Step-by-step explanation:
38/99=b+17/22
to solve this expression we would make b the subject of the formulae
and evaluate the other parameters.
38/99=b+17/22
collect the like terms
38/99 - 17/22 = b
22( 38) - 99 (17)/ 2178 = b
836 - 1683/2178 = b
-847/2178 = b
b = - 0.389
Answer:
C Infinitely many solutions
Step-by-step explanation:
i think! Good luck!!
Answer:
d/dt(dx/dt)=K(dx/dt)^2
Step-by-step explanation:
Since, a is proportional to v^2; and a=d/dt(dx/dt) and v= dx/dt since they are instantanious acceleration and velocity respectively.
K=(d^x/dt^2)(dt/dx)^2
150*1=150
150/7200=.02 km per second
Answer:
Step-by-step explanation:
The null hypothesis is the hypothesis that is assumed to be true. It is an expression that is the opposite of what the researcher predicts.
The alternative hypothesis what the researcher expects or predicts. It is the statement that is believed to be true if the null hypothesis is rejected.
From the given situation,
The life expectancy of all policyholders was known to be 77 years. This is the null hypothesis.
The insurance company thinks or is predicting that people who buy their policies are living longer than before. This is the alternative hypothesis.
Therefore, the correct null and alternative hypotheses are
a. H0: p = 77 and HA: p > 77