60 POINTS AND Select the correct answer from the drop-down menu.
The value from the set {10, 11, 12, 13} that makes the equation 2(x − 5) = 12 true is (blank).

11

Step-by-step explanation:

Multiply the parenthesis

2*x = 2x

2*5 = 10

2x-10 = 12

Because we subtract 10 to get 12, we add 10 to see the 2x

12+10 = 22

Now 2x = 22

2x=22

2x / 2 = 22 / 2

x=11

30 miles

step-by-step explanation:

we know that 60 seconds equals 1 minute and 60 minutes 1 hour

44 ft       60 sec     60 min     158400   ft

  *   *   =

1 sec       1 min       1 hour         hour

we know that there are 5280 ft per mile

158400   ft       1 mile         30 miles

  *   =

1   hour               5280 ft     1 hour

so in 1 hour   it can travel 30 miles

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