(will give brainliest to correct answer.) the histogram shows the heights in meters of trees in a certain section of the park. how many trees are less than 24 meters tall? a. 4 b. 9 c. 15 d. 16

The answer would be 15.

In the histogram, we are given heights on the x - axis and quantities on the y - axis. We want to know how many trees are less than 24 meters tall.

There are the following groups, and the number of trees in each:

0-4 0

4-8 1

8-12 2

12-16 2

16-20 4

20-24 6

24- STOP (Because this includes 24)

We total up our frequencies above, 1 + 2 + 2 + 4 + 6 = 15.

Thus there are 15 trees --- Choice C -- less than 24 meters tall.

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

step-by-step explanation: