The first four terms in an arithmetic sequence are -3,-10,-17 and -24.which expression can be used to find the nth term? what is
the 25th term of the sequence
A).-7(n-1);-168
B).-3+(n-1)(-7);-171
C).-3+(n-1)(-7);-185
D).3+(n-1)(-7);-165
A).-7(n-1);-168
B).-3+(n-1)(-7);-171
C).-3+(n-1)(-7);-185
D).3+(n-1)(-7);-165
1 answer:
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Answer:
.
Step-by-step explanation:
The given point is
We need to find the rectangular coordinates of the given point.
If a polar coordinate is , then
In the given point ,
Now,
and,
Therefore, the required point is .
Answer:
A, C, D and K
Step-by-step explanation:
Inequalities:
y ≤ −2x + 10 and y >1/2x-2
<u>Finding zeros for the first inequality:</u>
- x=0 ⇒ y= 10, point (0, 10)
- y=0 ⇒ x= 5, point (5, 0)
- Locating these 2 points and connecting to get the first line.
Space to the left of this line (as y≤ ) is the solution for this inequality, any points on this line are inclusive.
<u>Finding zeros for the second inequality:</u>
- x=0 ⇒ y= -2, point (0, -2)
- y= 0 ⇒ x= 4, point (4, 0)
- Locating these points and connecting to get the second line.
Space above this line (as y > sign) is the solution for this inequality, any points on this line are not inclusive.
Now we have the space of intersection of the above inequalities.
So the points in same section are the solution.
They are:
- Points A, C, D and K
See attached for explanation
