Answer:
Matt ;
Used diameter of the ball instead of Radius
Step-by-step explanation:
The volume of a sphere is given as :
4/3πr³
Radius, r = diameter / 2
Given that, the diameter = 15 cm ; The Radius = 15 / 2 = 7.5 cm
Matt made an error in his calculation by failing to covert the value of the diameter given to Radius.
By dividing the diameter by 2 = 15 / 2 = 7.5, we obtain the Radius, which is what Billy did in her own calculation.
Answer:
<em>It is D.4/9x=37/3</em>
Step-by-step explanation:
i took the test
Answer:
<h2>1) y = 5</h2>
Step-by-step explanation:
x = 4 it's a vertical line.
Perpendicular line to a vertical line is a horizontal line.
A horizontal line has equation y = a.
A horizontal line passes through the point (3, 5) → x = 3 and y = 5.
Therefore the equation is y = 5
Answer:
danny's offer is cheaper
Step-by-step explanation:
danny = $9 per hour
martin = $16 per hour
Answer:
-12
Step-by-step explanation:
Convert the mixed number to an improper fraction.
-2
= 
To divide, just multiply by the reciprocal.
So -2 ÷ 
becomes ÷
Now you can multiply straight across.
× 
= 
And simplify.
= -12
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