2 years ago

The n-th term of a number pattern is as follows:

Mathematics

1 answer:

Ilia_Sergeevich [38]2 years ago

7 0

9 = 3² is not prime, so $T_9 = 9^2-8 = 81-8 = 73$ .

7 is prime, so $T_7 = 7\times7+6 = 55$ .

Then the difference is $T_9 - T_7 = 73 - 55 = \boxed{18}$ .

You might be interested in

5 ft 9 ft gft/ 7H- 2 ft 13 ft Surface Area: Volume:

Jet001 [13]

Answer: you like it if I could double the height of your cat food can?” 6 in. 7 in. 15 cm. 30 cm. 13 ft. 6 ft ... 3 ft. 2 ft. 4 ft. 2. 5 m. 8 m. 8 m. Areas of bases. Areas of lateral faces. Exercises 7–9. Lesson Tutorials ... WRAPPING PAPER A cube-shaped gift is.

8 0

3 years ago

in class,12 students like to play vollyboll. if 30% of the students in the class like to play volleyball,how many students are i

iren [92.7K]

Answer:

Hope this helps! If you have any questions feel free to ask.

Step-by-step explanation:

6 0

2 years ago

Please Help this is Due in 1 hour and I really dont understand any of this. (Question in Image)

vaieri [72.5K]

Answer:

(-4, -1/2)

Step-by-step explanation:

to calculate the midpoints bt of the line use the ormula:

$( \frac{x1 + x2}{2} \frac{y1 + y2}{2} )$

Where (x1, x2) is one coordinate point and (y1, y2) is anither coordinate point. Any two points will work, but I chose A (-5,-4) and B (-3, 3).

$( \frac{ - 5 + ( - 3)}{2} \frac{ - 4 + 3}{2} )$

(-4, -1/2)

5 0

2 years ago

when directed to solve a quadratic equation by completing the square, Sam arrived at the equation (x-(5/2))^2= (13/4). which equ

Tasya [4]

We have the following expression:
(x- (5/2)) ^ 2 = (13/4)
Let's rewrite the given expression:
x ^ 2 - 5x + 25/4 = (13/4)
x ^ 2 - 5x + 25/4 - 13/4 = 0
x ^ 2 - 5x + 12/4 = 0
x ^ 2 - 5x + 3 = 0
Answer:
the original equation given to Sam could have been:
x ^ 2 - 5x + 3 = 0

7 0

3 years ago

There is a sales tax of $6 on an item that costs $64 before tax. The sales tax on a second item is $8.25 . How much does the sec

bulgar [2K]

The second item would be $88 before tax since the tax rate is 9.375%

5 0

3 years ago