3 years ago

Sally was planning a trip to Japan.

Mathematics

1 answer:

PIT_PIT [208]3 years ago

8 0

113.7 * 30 = ¥3,411

hope this helped

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Write and evaluate the definite integral that represents the volume of the solid formed by revolving the region about the x-axis

guapka [62]

Answer: V = $\frac{64}{3}\pi$

Step-by-step explanation: A solid formed by revolving the region about the x-axis can be considered to have a thin vertical strip with thickness Δx and height y = f(x). The strip creates a circular disk with volume:

V = $\pi. y^{2}.$ Δx

Using the <u>Disc</u> <u>Method</u>, it is possible to calculate all the volume of these strips, giving the volume of the revolved solid:

V = $\int\limits^a_b {\pi. y^{2} } \, dx$

Then, for the region generated by y = - x + 4:

V = $\int\limits^4_0 {\pi.(-x+4)^{2} } \, dx$

V = $\pi.\int\limits^4_0 {(x^{2}-8x+16)} \, dx$

V = $\pi.(\frac{x^{3}}{3}-4x^{2}+16x )$

V = $\pi.(\frac{4^{3}}{3}-4.4^{2}+16.4 - 0 )$

V = $\frac{64}{3}.\pi$

The volume of the revolved region is V = $\frac{64}{3}.\pi$

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3 years ago

7 x 5 x35 = 701223123

9966 [12]

Answer:

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Step-by-step explanation:

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3 years ago

I have a riddle for you I have 31 82,400,060 tens and 100 hundreds

klasskru [66]

Answer: 31824010600

Step-by-step explanation: 3182400060 tens and 100 hundreds = 31824010600.

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3 years ago

(a) It takes 73 pounds of seed to completely plant a 10-acre field. How many pounds of seed are needed per acre? (b) Latoya boug

Snezhnost [94]

(a) 7.3 pounds of seed is needed per acre.

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4 years ago

If one cup is equal to 8 fluid ounces, how many fluid ounces are in 4 cups? Input only whole numbers.

Levart [38]

4 cups = 32 oz. (:

I hope this helps. (:

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3 years ago

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