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weqwewe [10]
3 years ago
5

(07.05) Graph the first six terms of a sequence where a = -10 and d = 3.

Mathematics
1 answer:
butalik [34]3 years ago
7 0

Answer:

15

Step-by-step explanation:

Using the formular, Sn = n/2(2a + (n - 1)d)

where, n = 6: Sn = 6/2( -20 + 5(3)) = 3(15 - 20)

∴  Sn = 15

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A scuba diver descends in the water at a rate of 23 1/2
Makovka662 [10]

The scuba diver's position relative to sea level after the 4.6 minutes is 5.1 ft.

Given:

A scuba diver descends in the water at a rate of 23 1/2  feet per minute for 2.6 minutes.

A scuba diver ascends at a rate of 28 feet per minute for 2 minutes after seeing a big fish.

To find :

The scuba diver's position relative to sea level after the 4.6 minutes.

Solution:

Rate of a scuba diver descending in the water for 2.6 minutes = R _1

R_1= 23\frac{1}{2}ft/min=\frac{47}{2} ft/min

Distance covered by a scuba diver in 2.6 minutes = d_1

d_1=R_1\times 2.6min=\frac{47}{2} ft/min\times 2.6 min=61.1 ft

Rate of a scuba diver ascending for 2 minutes = R _2

R_2= 28ft/min

Distance covered by a scuba diver in 2 minutes = d_2

d_2=R_2\times 2min=28 ft/min\times 2 =56 ft

The position of scuba diver after 4.6 minutes relative to sea level:

d_1-d_2=61.1 ft-56 ft=5.1ft

The scuba diver's position relative to sea level after the 4.6 minutes is 5.1ft.

Learn more about ascending rate and descending rate here:

brainly.com/question/1477877?referrer=searchResults

brainly.com/question/1072871?referrer=searchResults

3 0
3 years ago
Jayne is driving 440 miles and wants to make the trip in 8 hours. write an equation and solve to determine the average speed jay
Nuetrik [128]
Distance÷time
440÷8= 55
Therefore he needs to drive at the speed of 55 miles/hour
7 0
3 years ago
A points lies on AB and is 3/4 the distance from A to B. Point A is located at (5, 4) and point B is located at (10, 12)
kirza4 [7]

Answer:

The answer for this is D.

Step-by-step explanation:

The reason is that it tells you that is a 3/4 your distance point so you need to count from 3/4.

5 0
2 years ago
I need help pls, youl get a lot of points
lora16 [44]

Answer:

1st, 3rd and 4th

Step-by-step explanation:

Only 2nd is false

6 0
3 years ago
Please help me ASAP!
faust18 [17]

With parallel lines, they will never touch one another. Therefore, there shouldn't be any solution.

7 0
3 years ago
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