The parallel dotplots below display the number of cars parked for several days in each of two parking lots. 2 dotplots titled parked cars by lot. The number lines go from 21 to 29 and are labeled number of cars. For lot A, 21, 1; 23, 5; 25, 10; 27, 5; 29, 1. For lot B, A, 2; 23, 10; 25, 20; 27, 10; 29, 2.

Which of the following statements is true?

The range for the distribution of the number of cars is larger in lot A.
The range for the distribution of the number of cars is larger in lot B.
There is a smaller standard deviation in the distribution of the number of cars in lot B.
The standard deviation in the distribution of the number of cars is the same for both lots.

the one that has a slope of 1/2 and is positive.

step-by-step explanation: 2 buckets 1 trip ; 4 buckets 2 trips and so on.

or

step-by-step explanation:

we need to solve for 'x' the following equation:  

we have that:

⇒

⇒ ⇒

factorizing, we get that:

  ⇒

then, the solutions are: or

nothing extraneous has been found!

1. 180°. the sum of the interior angles of a triangle is 180°, for the equilateral triangle that it has three equals side is 60°+60°+60°=180°.

2. 60°. each interior angle of a equilateral triangle is 60°

3. 120°. the measure of ∠m is 120°, the sum of the angles ∠m and ∠n is equal to 180°. so, in order to find the measure of ∠m, we have ∠m+∠n=180° > ∠m=180°-∠n > ∠m=180°-60°=120°.

4. 360°. the sum of the exterior angles of an equilateral triangle is ∠m+∠r+∠x=120°+120°+120°=360°. the exterior angles of any triangle always add 360°.