The question is in the image! Please help if u can its due really soon
2 answers:
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Answer:
The volume of the cone is 75.36 cm³
Step-by-step explanation:
The rule of the volume of a cone is V = π r² h, where
- r is the length of the radius of its base
- h is the height of the cone
In the given figure
∵ The length of the radius of the cone is 3 cm
∴ r = 3 cm
∵ The length of the height of the cone is 8 cm
∴ h = 8 cm
→ Substitute the values of r and h in the rule of the volume above
∵ π ≅ 3.14
∵ V = (3.14)(3)²(8)
∴ V = 75.36 cm³
∴ The volume of the cone is 75.36 cm³
The absolute value of a number is the positive version of that number. So, if
is positive, its absolute value is
itself. If
is negative, its absolute value is
, so that it will be positive again.
So, if the absolute value of a number is smaller than a certain quantity, i.e. it means that the positive version of
is less than
.
So, if is positive, the inequality becomes
. If
is negative, the inequality becomes
.
So, as a compound inequality, we have
So, in your case, we have
Add 8 to all sides in this inequality:
So, on a number line, you must higlight all numbers between 7.79 and 8.01, endpoints excluded.
Conceptually, this means that the bolt measurement should be exactly 8mm, but you can accept bolts that are 0.01 millimeters shorter of larger.