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DIA [1.3K]
3 years ago
7

Evaluate using suitable identity:e). 102 × 98​

Mathematics
2 answers:
chubhunter [2.5K]3 years ago
8 0

Step-by-step explanation:

<h3><u>★ Solution :-</u></h3>

\sf \longmapsto 102 \times 98

\sf \longmapsto (a + b)(a - b) = a^2 - b^2

Here,

  • a = 100
  • b = 2

\sf \longmapsto (100 + 2)(100 - 2) = 100^2 - 2^2

\sf \longmapsto 100^2 - 2^2

\sf \longmapsto 10000 - 4

\sf \longmapsto 9996

marysya [2.9K]3 years ago
6 0

Answer:

9996

Step-by-step explanation:

Algebraic Identity: (a-b)(a+b)=a²-b²

102×98=(100+2)(100-2)

=100²-2²

=10000-4

=9996

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The area of a bathroom floor measures 6 feet by 9 feet and each custom tile that makes up the flooring is 1 1/2 square feet. How
lbvjy [14]

Answer:

Around 9.8 tiles

Step-by-step explanation:

The formula is x = (6*9)/5.5.

3 0
3 years ago
A playstation 5 is $900 and costs $50 per game. A xbox is $400 and costs $60 per game. How many games will it take for both cons
belka [17]

Answer:

It would take a PlayStation 5 and 2 games to equal an Xbox and 10 games.

Step-by-step explanation:

I made a list that increase in the increments of the game price.

Something like this:

900—400~consoles alone

950—460~1 game

1000–520~2 games

1050—580~3 games

1100—640~4 games

1150—700~5 games

1200—760~6 games

1250—820~7 games

1300—880~8 games

1350—940~9 games

1400—1000~10 games

Left side is PlayStation 5 and right side is Xbox. The first row is the price of the consoles alone and then each row after that is the price of the console with an additional game. As you can see, the third row down on the left, the PlayStation 5 with 2 games is $1,000. If you look at the eleventh row on the right, you can see that Xbox with 10 games is also $1,000

3 0
3 years ago
What is the value of x?
cestrela7 [59]
-3x-1 = 2-(-3)
-3x-1 = 2+3
-3x-1 = 5
-3x = 5+1
-3x = 6
x = 6/(-3)
x = -2 
6 0
3 years ago
If the distance between the points (2, -2) and (1, x) is 5 one of the values of x is
son4ous [18]

Answer:

2.899

Step-by-step explanation:

The formula for calculating the distance between two points P(x1, y1) and (x2, y2) is expressed as:

D = √(x2-x1)²+(y2-y1)²

Given the points (2,-2) and (1,x) and the distance between the point as 5, we are to get x. To get x we will substitute the points and the distance given into the formula.

Given x1 = 2, y1 = -2, x2 = 1, y2 = x and D = 5

On substitution:

5 = √(1-2)²+(x-(-2))²

5 = √1²+(x+2)²

5 = √1+(x+2)²

Square both sides of the equation

5² = (√1+(x+2)²)²

25 = 1+(x+2)²

(x+2)² = 25-1

(x+2)² = 24

Square both sides

√(x+2)² = √24

x+2 = √24

x = √24- 2

x = 4.899-2

x = 2.899

Hence the other value is 2.899

7 0
3 years ago
Anyone know the answer
Murljashka [212]

Answer:

I DONT KNOW SOORY

Step-by-step explanation:

jbjnmbgkuyhjn

8 0
3 years ago
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