All categories

3 years ago

Choose the correct answer from the given four options:In an AP if a = –7.2, d = 3.6, an = 7.2, then n

Mathematics

1 answer:

Serggg [28]3 years ago

5 0

Answer:

n=5

Step-by-step explanation:

by using

n=(an-a)/a+1

substituting values

n= 7.2-(-7.2)/3.6 +1

n=5

You might be interested in

one room length 12.8 and breadth equals to 850 CM inside that room there is a bad length is 300 cm and breadth is 400 cm find th

9966 [12]

Answer:

$Area = 968000cm^2$

Step-by-step explanation:

To be able to answer this question properly. I'll assume the length of the room is in meters.

So for the room, we have:

$Length = 12.8m$

$Breadth = 850cm$

For the bed, we have:

$Length = 300cm$

$Breadth = 400cm$

First, we calculate the surface area of the room.

$A_1 = 12.8m * 850cm$

Convert all units to cm

$A_1= 12.8*100cm * 850cm$

$A_1= 1 088 000 cm^2$

Next, we calculate the area of the bed

$A_2 = 300cm * 400cm$

$A_2 = 120000cm^2$

The area of the space left is the difference between A1 and A2

$Area = A_1 - A_2$

$Area = 1088000cm^2 - 120000cm^2$

$Area = 968000cm^2$

5 0

2 years ago

two pirate ships leave the same port at the same time. The first ship travels due North at a constant speed while the second shi

NemiM [27]

Step-by-step explanation:

the speed of the first ship is 20 mph

and the second ship is 15 mph

3 0

3 years ago

A pair of boots are $95.00 and are on sale for 30% off. What is the sale price of the boots?

polet [3.4K]

Answer:

$66.50, and you saved $28.50

3 0

2 years ago

Simplify the product using the distributive property.

andrew11 [14]

Answer:

16h^2-4h-42

Step-by-step explanation:

4h times 4h is 16h^2

4h times -7 is -28h

4h times 6 is 24h

6 times -7 is -42

Combine like terms to get 16h^2-4h-42

7 0

3 years ago

Find the product. a^4(3a ^2 - 2a + 1)

Vikki [24]

a⁴(3a² - 2a + 1)

We just have to multiply each term inside the parentheses by a⁴ .

 a⁴(3a² ) = 3a⁶

 a⁴( - 2a ) = -2a⁵

 a⁴( 1) = a⁴

Now, just addum up : 3a⁶ - 2a⁵ + a⁴

7 0

3 years ago