Math, asked by vvsbs2542, 2 months ago

Find the value of an expression: 2ab +4b+c if a= 10 b=5 and c=3

12)Express 9000 as product of powers of the prime factors. 13)Find the area of circle whose radius is 7 cm

14)A bag contain 4 red balls 5 blue balls and 1 black.​

Answers

Answered by darshanravaldz
1

Answer:

11) 2ab + 4b + c

2(10) (5) + 4(5) + 3

100 + 23

123

13) πr^2

22/7 x 7 x 7

22 x 7

154 cm^2

12 and 14 idk I'm sorry.. hope it helps

pls mark Brainliiest ✨

Answered by aLovelyStudent
0

Answer:

11) 123

12) 2^3 x 3^2 x 5^3

13) 153.86

14) I'm afraid you did not complete this question

Step-by-step explanation:

11) 2ab + 4b + c

First, substitute the variables for numbers:

2 x 10 x 5 + 4 x 5 + 3

Do the multiplcation

100 + 20 + 3

Do the addition

123

11) 123

12) 9000 has 8 prime factors

2, 2, 2, 3, 3, 5, 5, 5

Now we write these as powers

3 twos = 2^3

2 threes = 3^2

3 fives = 5^3

Now we multiply them to get 9000

2^3 x 3^2 x 5^3

12) 2^3 x 3^2 x 5^3

13) Area of a circle formula: A = πr^2

Plugin the numbers:

A = π7^2

Simplify till you get the answer:

A = π7^2

A = π49

A = 153.86

13) 153.86

14) A bag contain 4 red balls 5 blue balls and 1 black.​

I'm afraid you did not complete this question

14) I'm afraid you did not complete this question

Similar questions