Times 3 6 times but not 3 times 6
Answer:
4. sin 40= 0.7451131604793488384
5. cos 40= -0.666938061652261888
6. tan 50= -0.2719006119976306688
7. tan 40= -1.1172149309238962176
8. sin A= -0.5882162892399388672
9. cos A= -0.8087036521945458688
10. tan A= 0.7273570332515760128
11 by 16
Explanation:
Set up two equations
2
x
+
2
y
=
54
x
×
y
=
176
Solving the first equation for x
2
x
+
2
y
−
2
y
=
54
−
2
y
this gives
2
x
=
54
−
2
y
Divide both sides by 2
(
2
x
2
)
=
54
−
2
y
2
This gives.
x
=
27
−
y
putting this value into the second equation gives.
(
27
−
y
)
×
y
=
176
multiplying across the parenthesis gives
27
y
−
y
2
=
176
subtracting 176 from both sides gives
is
27
y
−
y
2
−
176
=
0
multiplying by negative one gives
−
27
y
+
y
2
+
176
=
0
factoring this into y gives
(
y
−
11
)
×
(
y
−
16
)
=
0
Solving for both y's gives
y
=
11
,
y
=
16
Answer:
The assignment of teachers to students enrolled in each of their classes is NOT an example of a function.
Step-by-step explanation:
To determinate if the given example is a function, you have to use the definition of function and compare it to the example.
A function is defined as a relation that assigns each element of one set to exactly one element of the second set. The first set is called the domain and the second set is called the range.
In this case, the domain is represented by the teachers and the range is the students enrolled in each teacher's classes.
Therefore, the example is not a function because each teacher is not assigned to exactly one student. In other words, in general, one teacher has more than just one student.
2+11x+121=x+96 is rearranged as: x^2+11x+121-x-96. => x^2 +10x +25, which is like ax^2+bx+c. So D = b^2-4ac = (10^2-4*1*25) = 0. So the discriminant of the given equation is 0.
