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charle [14.2K]
3 years ago
12

I need help with this​

Mathematics
1 answer:
jek_recluse [69]3 years ago
8 0

Answer:

it should be d.

Step-by-step explanation:

volume of a cone = π x r² x h

volume = π x 4.5² x 3.5

volume = π x 70.825

volume = 222.66 cubic metres

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Jordan received 9 text messages last week.She received 3 times more text message this week than last week. How many text message
vazorg [7]
If she got 9 messages last week and 3rimes as much this week then she got 27 messages because 9x3=27
8 0
3 years ago
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I found some shirts for Jonah that were 40 percent of their regular price I bought him 3 shirts and each one was regularly price
Alekssandra [29.7K]

Answer:

32.40

Step-by-step explanation:

The shirts were 40% of the regular price

The sale price of 1 shirt was

18*40% = sale price

18*.40 =7.20

He  bought 3 shirts, so multiply by 3

3 * 7.2 =21.60

He paid 21.60

The price he would have paid without the discount is

18*3 = 54

The savings is

54- 21.60 =32.40

8 0
3 years ago
A line passes through the point (9. -9) and has a slope of -4/3.
professor190 [17]

Answer:

y =  \frac{ - 4}{3} x + 3

Step-by-step explanation:

using \: point \: slope \: form \\ y - y1 = m(x - x1) \\ y  + 9=  \frac{ - 4}{3} (x - 9) \\ y  + 9=    \frac{ - 4}{3}x   + 12\\ y =  \frac{ - 4}{3} x  + 3

6 0
3 years ago
John enlarged one side of his square flower bed by 8 ft to make it into a rectangle. The area of the new flower bed is 3 times t
kobusy [5.1K]

Answer:

4

Step-by-step explanation:

4*4=16

(4+8)4=48

16*3=16!

5 0
3 years ago
Read 2 more answers
Evaluate the triple integral_E x^6e^y dV where E is bounded by the parabolic cylinder z = 25 - y^2 and the planes z = 0, x = 5,
Nimfa-mama [501]

Nothing crazy here, just a matter of figuring out the limits of integration.

\displaystyle\iiint_Ex^6e^y\,\mathrm dV=\int_{-5}^5\int_{-5}^5\int_0^{25-y^2}x^6e^y\,\mathrm dz\,\mathrm dy\,\mathrm dx

=\displaystyle\int_{-5}^{-5}\int_{-5}^5x^6e^y(25-y^2)\,\mathrm dy\,\mathrm dx

=\displaystyle\left(\int_{-5}^5x^6\,\mathrm dx\right)\left(\int_{-5}^5e^y(25-y^2)\,\mathrm dy\right)=\boxed{\frac{625,000(3+2e^{10})}{7e^5}}

4 0
3 years ago
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