All categories

3 years ago

A geometric sequence has u4= -70 and u7=8.75 Find the second term of the sequence.

Mathematics

1 answer:

Kobotan [32]3 years ago

5 0

Answer:

-122.5

Step-by-step explanation:

Difference = 7 - 4 = 3 terms; 8.75 - (-70) = 78.75

1 term → 78.75/3 = 26.25

therefore, u2 = - 70 - 2(26.25) = -122.5

Topic: Patterns + Common difference

If you would like to venture further into mathematics, you can check out my Instagram page (learntionary) where I post notes and mathematics tips. Thanks!

You might be interested in

What is congruent of a triangle

Korvikt [17]

Answer:

When two triangles have the exact 3 sides and the same 3 angles

Step-by-step explanation:

In geometry, triangles are congruent when the have the exact same 3 sides and the exact same 3 angles. They can be flipped or reflected, they just have to have same sides and angles

4 0

3 years ago

Tensile strength tests were performed on two different grades of aluminum spars used in manufacturing the wing of a commercial t

SCORPION-xisa [38]

Answer:

(12.141, 14.059)

Step-by-step explanation:

Explanation is provided in the attached document.

Download docx

5 0

3 years ago

A gardener found that he was able to plant 1/4 of a packet of flower seeds in 1/5 of a garden.At this rate how much of the garde

telo118 [61]

Answer: $\frac{4}{5}$ of garden.

Step-by-step explanation:

Given: The area covered by $\frac{1}{4}$ of a packet of flower seeds= $\frac{1}{5}$ of a garden.

The area covered in 1 packet= $4\times\frac{1}{5}$

⇒The area covered in 1 packet= $\frac{4}{5}$ of garden.

Thus, the entire packet of seeds would cover $\frac{4}{5}$ of garden.

3 0

3 years ago

In Jamie's drawer are 3 pairs of blue socks, 1 pair

Effectus [21]

Answer:

24%

Step-by-step explanation:

I think this is right. im sorry if its not but i went to a percent calculator and checked my answer. hope this helped :)

6 0

3 years ago

Fill in the blanks to complete the 4 part conclusion. There is suggestive, but inconclusive evidence the Velvetleaf seed beetle

Anarel [89]

Answer:

a) There is suggestive evidence the velvet leaf seed is successful at weed control.

b) Lower bound: 3.699 Upper bound: 6.629

c) Since the confidence interval contains the average percent of seeds to be infected by the beetle (5.164), so we fail to reject the null hypothesis at the specified level of significance.

Step-by-step explanation:

See attached picture.

3 0

4 years ago