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3 years ago

Write an explicit formula for the nth term 13,18,23,28 an=

Mathematics

1 answer:

Ronch [10]3 years ago

8 0

Answer:

an = a(n-1) +5

Step-by-step explanation:

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Just the 3rd and 4th plz help me

svlad2 [7]

Answer:

Step-by-step explanation:

Now the key here is manipulating the scale:

For 3 every 2cm = 15mi

Divide by 2 so every 1cm = 7.5mi

So if we had 16.27cm then that would equal 16.27 x 7.5 = 122.025mi on the actual scale

Same for 4: if 1/2cm = 20mi

Then multiply times 2 and every 1cm = 40mi

So 11.73cm x 40 = 469.2mi on the actual scale

Hopefully this is right and it helps!

8 0

4 years ago

Grayson spots an airplane on radar that is

slamgirl [31]

Using the slope concept, it is found that the distance traveled from point A to point B was of 12060.8 ft.

<h3>What is a slope?</h3>

The slope is given by the <u>vertical change divided by the horizontal change</u>, and it's also the tangent of the angle of depression.

At point A, the vertical change is of 7225 feet, with an angle of 19º, hence:

$\tan{19^\circ} = \frac{7225}{x_A}$

$x_A = \frac{7225}{\tan{19^\circ}}$

$x_A = 20982.9$

At point B, the vertical change is of 7225 feet, with an angle of 39º, hence:

$\tan{39^\circ} = \frac{7225}{x_B}$

$x_B = \frac{7225}{\tan{39^\circ}}$

$x_B = 8922.1$

The distance in feet is given by:

$d = x_A - x_B = 20982.9 - 8922.1 = 12060.8$

More can be learned about the slope concept at brainly.com/question/18090623

7 0

2 years ago

Why there is 60 minutes in a hour ?

VARVARA [1.3K]

Step-by-step explanation:

THE DIVISION of the hour into 60 minutes and of the minute into 60 seconds comes from the Babylonians who used a sexagesimal (counting in 60s) system for mathematics and astronomy. They derived their number system from the Sumerians who were using it as early as 3500 BC.

3 0

3 years ago

Read 2 more answers

Over the interval [-3, 0], the local minimum is

bagirrra123 [75]

Answer: 1. -16.18

2. 3.75

3. -3

Step-by-step explanation:

4 0

3 years ago

What are the solutions to the equation x2−12x+100=0?