Answer:
X=7
Step-by-step explanation:
7*15=105 7-2=5 5*25=125 125+105=230
The given function is

with
t = time, hours
f = temperature, °C
Because the maximum and minimum values for the Sine function are +1 and -1 respectively,
The maximum value of f = 33 - 20 = 13.
The minimum value of f = -33 - 20 = -53.
The period, T, is given by

Answer:
Maximum: 13°; Minimum: -53°; period: 4 hours
-6(1+7x)+7(1+6x)=-2
This is False.
Use distributive property:
-6 -42x + 7 +42x = -2
Combine like terms to get:
1 = -2
Since 1 is not -2, it is false.
ANSWER
The second statement is the contrapositive of the first.
EXPLANATION
If we have the conditional statement,

Then the converse of this statement is

The inverse of this statement is

and the contrapositive of this statement is

The correct answer is C.