27y^3 -343 starts out with 27y^3, and 343 is the cube of 7. Thus, we know immediately that 27y3 -343 is the diffeence of two squares.
The appropriate rule is a^3 - b^3 = (a - b)(a^2 + ab + b^2).
Here, we have 27y3 -343 = (3y - 7)(9y^2 + 12y + 49)
Answer:
c
Step-by-step explanation:
All the animals will go extinct.
Answer:
48 m³
4,186.67 km³
Step-by-step explanation:
volume of pyramid =
⅓×6×6×4 = 48 m³
volume of ball =
4/3 × 3.14 × 10³ = 4,186.67 km³
Step-by-step explanation:
I cannot see the correct value so u check yourself. but this is the correct graph.
The original price of the DVD player if the sales tax rate is 8.25% is $88.79
<h3>Sales tax</h3>
- Cost of DVD player including tax = $96.34
- Sales tax = 8.25%
- Original cost = 8.25%
Total cost = original cost + (sales tax × original cost
96.34 = x + (8.5% × x)
96.34 = x + (0.085 × x)
96.34 = x + 0.085x
96.34 = 1.085x
x = 96.34 / 1.085
x = 88.7926267281105
Approximately,
x = $88.79
Learn more about sales tax:
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