1.15x10^-7 / 2.5x10^-3
4.6x10^-10
0.46x10^-3
4.6x10^-3
0.46x10^-4

The answer to your question is: d) 0.46x10^-4

Step-by-step explanation:

                                        (1.15x10⁻⁷) / (2.5x10⁻³)

First, divide 1.15 by 2.5        1.15 / 2.5 = 0.46

Second, subtract the power    -7 - (-3) = -7 + 3 = -4

Finally, express the number     0.46 x 10⁻⁴

a) 4.6x10^-10

b) 0.46x10^-3

c) 4.6x10^-3

d) 0.46x10^-4

it will be a cylinder. with a diameter of 8 and 4 single pieces high

step-by-step explanation:

step by step resolutions

1) n+n+1+n+2=51

3n+3=51

3n=48

n=16

the three numbers are 16, 17 and 18.

2) x+15=4x

3x=15

x=5

radha is now 5 years old

3) the two digits are x and y.

y=3x

(10x+y)+(10y+x)=88

y=3x

11x+11y=88

y=3x

x+y=8

x+3x=8

x=2

the original number can be either 28 or 82.

4) n+(n+2)+(n+4)=48

3n+6=48

3n=42

n=14

the numbers are 14, 16 and 18.

5) y=x+3

10y+x+10x+y=143

y=x+3

11x+11y=143

y=x+3

x+y=13

x+x+3=13

2x=10

x=5

the original number can be 57 or 75.

hope this !