BRAINLIESTT ASAP! PLEASE HELP ME :)

A new brand of gym shoe claims to add up to 2 inches to an athlete’s vertical leaps. Design an experiment to test this claim.

determine the experimental and control groups.

a. experimental group: athletes wearing the new shoes; control group: non athletes not wearing the new shoes.
b. experimental group: athletes not wearing the new shoes; control group: athletes wearing the new shoes.
c. experimental group: athletes wearing the new shoes; control group: non athletes wearing the new shoes.
d. experimental group: athletes wearing the new shoes; control group: athletes not wearing the new shoes

its definatley   this on your answer choice?

region b will make the inequalities y < 2x + 1 and y > -x - 2 true ⇒ answer a

step-by-step explanation:

* lets study the graph and the inequality to solve the question

- the inequality y > -x - 2

∵ the form of the inequality is y > mx + c , m is the slope of the line

  and c is the y-intercept (the line intersect y-axis at point (0 , c)

∴ c = -2 that means the line intersect the y-axis at point (0 , -2)

∵ the sign of the inequality is >

∴ we shad the part over the line

  region a and b

- the inequality y < 2x + 1

∵ the form of the inequality is y > mx + c , m is the slope of the line

  and c is the y-intercept (the line intersect y-axis at point (0 , c)

∴ c = 1 that means the line intersect the y-axis at point (0 , 1)

∵ the sign of the inequality is <

∴ we shad the part under the line

  region b and c

∵ the common region between the two lines is region b

∴ region b will make the inequalities y < 2x + 1 and y > -x - 2 true

after 1 year: 221 deer

step-by-step explanation:

30% of 170 is 51. 170+51=221

↓↓↓↓↓↓↓↓↓

step-by-step explanation:

this is a parabola.