Answer:
a., b., e.
4x10^6 would be 4,000,000 so d. isn't correct.
40^6 equals 4,069,000,000 so c. isn't correct either.
Answer:
the required truth value of the statement will be:
p q p → q
T T T
Step-by-step explanation:
A conditional statement contains two parts:
- hypothesis (if)
- conclusion (then)
We know that the truth table for the conditional statement is:
p q p → q
T T T
T F F
F T T
F F T
Given the statement that "If yesterday was Tuesday then today is Wednesday" indicates that the hypothesis is true and the conclusion is also true. Meaning that we only get Wednesday if the previous day was Tuesday.
Thus the required truth value of the statement will be:
p q p → q
T T T
Answer:
x= 4, 2.5(or 5/2)
Step-by-step explanation:
2x²-3x-15=5
-5 -5
2x²-3x-20=0
plug into quadratic equation
(3+13)/4 (3-13)/4
16/4=4 10/4=2.5
Answer:
a
x
2
+
b
x
+
c
=
0
the two roots of the equation take the form
x
1
,
2
=
−
b
±
√
b
2
−
4
a
c
2
a
So, start by adding
−
5
to both sides of the equation to get
2
x
2
+
x
−
5
=
5
−
5
2
x
2
+
x
−
5
=
0
Notice that you have
a
=
2
,
b
=
1
, and
c
=
−
5
. This means that the two solutions will be
x
1
,
2
=
−
1
±
√
1
2
−
4
⋅
2
⋅
(
−
5
)
2
⋅
2
x
1
,
2
=
−
1
±
√
41
4
You can simplify this if you want to get
x
1
=
−
1
+
√
41
4
≅
1.35078
and
x
2
=
−
1
−
√
41
4
≅
−
1.85078
The answer would be x= 68 degrees
