3 years ago

Find an explicit formula for the arithmetic sequence 12, 5, -2, -9,... a(n)=

1 answer:

3 0

a is the beggining number and n is the amount of times needed to do this. if is 17 you would need to subtract 7 from the originol number 12 (a) that many times.

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What is the measurements of N?<br> Plz help

densk [106]

Answer:

B.) 18

Step-by-step explanation:

90 + 72 = 162

180 - 162 = 18

(90 comes from the right angle)

(72 is already present)

(a triangle adds up to 180 degrees)

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3 years ago

a swallow files at a speed of 50 km/h for 3 hours and then at a speed of 40 km/h for a further 2 hours .find the average speed f

barxatty [35]

Answer:

18 km/h

Step-by-step explanation:

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2 years ago

Read 2 more answers

Match the isometric drawing below with the correct orthographic? Is the answer I selected correct?

baherus [9]

Answer: Your answer is correct.

Explanation:
Use the marker gradations to identify the projected geometric shapes from the top, front and right side view as shown in the figure below.

All the gradation markings agree with your choice.

.