Answer:
7 because 7x = 49 is 7 because 7 goes to itself 1 and to 49 7
12 - 2x < 16
-2x < 4
x > -2
x=-2 is a vertcal line passing through x = -2
x > -2 will be this line ( dotted) and shaded to the right
Step-by-step explanation:
what is the formula for finding the height of a sphere?
H → 2r
Answer:
Negations.
Step-by-step explanation:
The first statement is:
p ∧ q
(p and q)
This statement is only true when:
p = true
and
q = true.
And is false in all the other cases.
The other statement is:
¬q ∨ ¬p
(not q or not p)
This statement is only true if at least one of the elements is true, this happens if:
q =false (then ¬q = true)
or
p = false (then ¬p = true)
Then the first statement needs p and q to be true.
The second statement needs at least one of these to be false.
This means that when the first statement is true, the second statement is false.
When the first statement is false, the second one is true.
Then the statements are negations.
Part A.
The notation: A(n(t)) is saying to put function n(t) in for n in A(n).
A(t) = (pi)(7t)^2
A(t) = 49(pi)t^2
part B.
A(8), put in t = 8
A = 49(pi)(8)^2
A = 9847
