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Phoenix [80]
3 years ago
13

The expression below is a sum of cubes. True or false 64x^3+ 125 A. True B. False

Mathematics
1 answer:
olchik [2.2K]3 years ago
6 0

Answer:

True

Step-by-step explanation:

64x³ + 125

64x³ = (4x)³ ← a perfect cube

125 = 5³ ← a perfect cube

Thus 64x³ + 125 ← is a sum of cubes

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Write a quadratic function in standard form having zeros of -9 and -12
tia_tia [17]
(x + 9)(x + 12) = 0
Expanding the brackets, we get:
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3 0
3 years ago
two ships leave a port at the same time. the first ship sails on a bearing of 55° at 12 knots (natural miles per hour) and the s
Korvikt [17]

Answer:

37.59 nautical miles

Explanation:

Distance = Speed x Time

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\begin{gathered} =12\times1.5 \\ =18\text{ miles} \end{gathered}

The speed of the second ship = 22 knots

Thus, the distance covered after 1.5 hours

\begin{gathered} =22\times1.5 \\ =33\text{ miles} \end{gathered}

The diagram representing the ship's path is drawn and attached below:

The angle at port = 90 degrees.

The triangle is a right triangle.

Using Pythagorean Theorem:

\begin{gathered} c^2=a^2+b^2 \\ c^2=18^2+33^2 \\ c^2=324+1089 \\ c^2=1413 \\ c=\sqrt[]{1413} \\ c=37.59\text{ miles} \end{gathered}

The two ships are 37.59 nautical miles apart after 1.5 hours.

8 0
1 year ago
If 3,200 cars were sold all year, how many cars were sold in the jan/feb period?
Kobotan [32]

12 months per year

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5 0
3 years ago
Read 2 more answers
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Nope

Step-by-step explanation:

If it is a square garden, all sides are equal. Area would be 17x17 and that would equal 289^{2} ft not 34

3 0
3 years ago
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