Answer:
See below
Step-by-step explanation:
Remember the notation and rules of quantifiers. ∀ is the universal quantifier and ∃ is the existential quantifier. To negate ∀x p(x) , write ∃x ¬p(x). To negate ∃x p(x) , write ∀x ¬p(x)
Part I:
A) None of life's problems have a simple solution.
B) All of life's problems have a simple solution.
C) Some of life's problems have a simple solution
D) All of life's problems have a simple solution (notice how the original statements in B and D mean exactly the same)
E) Some of life's problems do not have a simple solution.
Part II: Let x be a variable representing one of life's problems, y be a variable representing solutions, p(x):="x has a simple solution", and q(x,y):="y is a simple solution of x".
A) (∀x)(¬p(x)) or ¬(∃x)(p(x))
B) (∀x)(∃y)(q(x,y))
C) (∃y)(∀x)(q(x,y)). Note that the order of quantifiers is important. B) and C) have different meanings. In C) there is an universal solution of all problems, in B) each problem has its solution.
D) (∀x)(p(x))
E) Same as C)
Use the Pythagorean theorem two times:
second time:
<h3>Answer: PR = 17 cm.</h3>
Are you asking how to solve for k? In that case, multiply both sides by 4. Then add 3 to both sides:
(k-3) = 40
k = 43
Answer:
around 90 cm because that measure is equal to 180 you divide into 2 so the answer is 90
Answer:
24:42 or 4:7
Step-by-step explanation:
Silverfish : Total fish
24 : 24 + 18
24 : 42
Simplify:
24:42 = 4:7
