The speed of light is 300000000 m/s (8 zeros). What is the speed of light in miles per hour? Please use dimensional analysis

1.08 times 10 to the power of 11

Step-by-step explanation:

i dk what dimensional analysis is,

but i do know that if the speed of light is 300000000 miles per second, the the speed of light in miles per hour is 300000000 times (60 times 60=3600)

=300000000 times 3600=108000000000

which in standard form is 1.08 times 10 to the power of 11

please give me a brainliest bc i had to do all the working out on a piece of paper and the multiplication took ages:)

the polynomial is a perfect square trinomial of the form a^2-2ab+b^2:

option a. true

step-by-step explanation:

9x^2-12x+4

comparing with the form a^2-2ab+b^2

1.) a^2=9x^2

solving for a: square root both sides of the equation:

sqrt(a^2)=sqrt(9x^2)

a=sqrt(9) sqrt(x^2)

a=3x

2.) b^2=4

solving for b: square root both sides of the equation:

sqrt(b^2)=sqrt(4)

b=2

to be a perfet square trinomial 2ab must be equal to 12x. let's check:

2ab = 2 (3x) (2)

2ab = 12x

correct