Answer: x=−3 or x=13
Step-by-step explanation:
Step 1: Subtract 39 from both sides.
x2−10x−39=39−39
x2−10x−39=0
Step 2: Factor left side of equation.
(x+3)(x−13)=0
Step 3: Set factors equal to 0.
x+3=0 or x−13=0
x=−3 or x=13
56 / 5 = 11.2...so 11.2 x 5 = 56
The answer is C
Hope that helps
The value of t based on the information about the sphere is 1.3π.
<h3>How to calculate the value?</h3>
It should be noted that the volume of a sphere is 4/3πr³. In this case, it's divided into 8 equal parts.
Volume of each part = 1/8 × 4/3πr³
= 1/8 × 4/3 × π × 8
= 4/3π
= 1.3πin³
Learn more about sphere on:
brainly.com/question/1293273
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The next arrival of both deliveries will be in 20 days as 20 is the LCM (lowest common multiple) of 10 and 4.