During the month of May, crabs arrive on Delaware's beaches to lay eggs. Certain shorebirds depend on these eggs for food during their annual spring migration to their northern breeding grounds. Delaware's crab population has declined recently. This decline, however, poses no serious threat to the migrating shorebird populations: by remaining longer in Delaware, the birds will be able to eat enough crab eggs to allow them to complete their migration. Which of the following, if true, most seriously weakens the argument?
(A) No other food available to the birds on Delaware's beaches is as nutritious and accessible as are crab eggs.
(B) The decline in the number of crabs on Delaware's beaches is due to the harvesting of crabs by humans.
(C) There are more crabs on Delaware's beaches than in any other area that the migrating birds pass through.
(D) The crabs do not conceal their eggs.
(E) The earlier in the season the shorebirds complete their migration, the more likely they are to breed successfully.

the answer is b)3/8x+1

the answer is c because it is most logical.

the law of original horizontality explains:   why rocks appear in layers. correct answer: b the law suggests that all rock layers are originally laid down (deposited) horizontally and can later be deformed.   the principle is used by geologists to make assumptions about the relative ages of sedimentary rocks.

answer-

the statement that f(x) = |x+a| + b has exactly one x-intercept is sometimes correct.

solution-

it solely depends on b, whether the function will have one or two or zero x intercept.

this plot of the given function, f(x) = |x+a| + b will be the basic absolute value graph i.e v shape, with vertex translated to (-a, b), instead of origin.

1-   if b is zero, the graph will have exactly one x-intercept, at x= -a

2- if b is positive, the whole graph will be above the x-axis, hence it will have no x-intercepts.

3- if b is negative, the graph will be below the x-axis, hence it will have two x-intercepts.

∴ the statement is sometimes true.