Answer:
Step-by-step explanation:

The compound inequality that gives the normal range for the pH values of lemon juice is given by:

<h3>What is a compound inequality?</h3>
A compound inequality is modeled by:

Which means that x is greater than a and less than b. In this problem, the pH is greater than 1.5 and less than 4, hence the inequality is given by:

More can be learned about compound inequalities at brainly.com/question/24528399
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It says the question is worth 8 points not 15.
Answer:
D. vo = 125(2)^1/2
Step-by-step explanation:
Range of a projectile is the defined as the distance covered in the horizontal direction.
Range = U²sin2θ/g
U is the speed of the object
θ is the angle of launch
g is the acceleration due to gravity
If the target is 1000 ft away horizontally, range = 1000ft
θ = 45°
g = 32ft/s²
1000 = U²sin2(45°)/32
32000 =U²sin90°
32000 = U²
U = √32000
U = 125√2 m/s