Answer:
- 57
Step-by-step explanation:
The n th term of an arithmetic sequence is
= a + (n - 1)d
where a is the first term and d the common difference
Here a = 13 and d = - 2.5, thus
= 13 + (28 × - 2.5) = 13 - 70 = - 57
Vicky grew 15 flowers with 3 seed packets. How many seed packets does Vicky need to have a total of 20 flowers in her garden?
1 answer:
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Answer:
See explanation
Step-by-step explanation:
Theorem 1: The length of the altitude to the hypotenuse of a right triangle is the geometric mean of the lengths of the segments of the hypotenuse.
Theorem 2: The length of each leg of a right triangle is the geometric mean of the length of the hypotenuse and the length of the segment of the hypotenuse adjacent to that leg.
1. Start point: By the 1st theorem,
2. South-East point from the Start: By the 2nd theorem,
3. West point from the previous: By the 2nd theorem,
4. West point from the previous: By the 1st theorem,
5. West point from the previous: By the 2nd theorem,
6. North point from the previous: By the 1st theorem,
7. East point from the previous: By the 2nd theorem,
8. North point from the previous: By the 1st theorem,
8. West point from the previous: By the 2nd theorem,
9. North point from the previous: By the 1st theorem,
101. East point from the previous: By the 1st theorem,
11. East point from the previous: By the 2nd theorem,
12. South-east point from the previous: By the 2nd theorem,
13. North point=The end.