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Luden [163]
3 years ago
5

I REALLY NEED HELP WITH THIS> ITS A RETAKE QUESTION!!!

Mathematics
1 answer:
sveticcg [70]3 years ago
3 0

Answer:

600cm^3

Step-by-step explanation:

\frac{1}{3}  {(15)}^{2} (8) \\  \frac{1}{3} (225)(8) \\  \ \frac{1800}{3}  \\ 600 {cm}^{3}

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What is the answer to 4•4+4(5-2)+7
Harrizon [31]

Answer:

35

Step-by-step explanation:

4 x 4+4(5-2)+7

4 x 4+4(3)+7

16+12+7

28+7

35

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Step-by-step explanation:

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3 years ago
Maria is training for a triathlon. Yesterday, she rode her bike for eight and two-thirds miles in two-thirds of an hour. If Mari
sesenic [268]
(8 2/3) / (2/3) = x / 1....8 2/3 miles to 2/3 hr = x miles to 1 hr
cross multiply
(2/3)(x) = (8 2/3)(1)
2/3x = 26/3
x = 26/3 * 3/2
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5 0
3 years ago
Read 2 more answers
B. 8/27 D. 1/3 10. Three spheres of radii , 2r, and 3r, respectively, are melted and formed into a new sphere. Find the surface
Dahasolnce [82]

Answer:

A_{f}=4\pi (\sqrt[3]{36} r)^{2}\\\\V_{f}=\frac{4}{3} \pi (36r^{3})

Step-by-step explanation:

In order to find the final radii of the sphere, we need to calculate the volume, knowing that volumes are additive:

V_{1}=\frac{4}{3} \pi (r^{3})\\\\V_{2}=\frac{4}{3} \pi (2r)^{3}\\\\V_{3}=\frac{4}{3} \pi (3r)^{3}\\\\V_{f}=\frac{4}{3} \pi (r^{3}+(2r)^{3}+(3r)^{3})\\\\V_{f}=\frac{4}{3} \pi (r^{3}+8r^{3}+27r^{3})\\\\V_{f}=\frac{4}{3} \pi (36r^{3})\\\\V_{f}=\frac{4}{3} \pi R^{3}\\\\R=\sqrt[3]{36} r

Now that we know the radii of the new sphere, we can calculate the surface area:

A_{f}=4\pi R^{2}\\\\A_{f}=4\pi (\sqrt[3]{36} r)^{2}

8 0
3 years ago
consider the sequence 11; 5; -1; -7;.... determine the sequence of the nth term of the sequence! PLSSSS HELP​
STALIN [3.7K]

Answer:

Tn = 17-6n

Step-by-step explanation:

d = 5-11 = -6

Tn = a + (n-1)d = 11 + (n-1)×-6

= 11 -6n +6 = 17-6n

4 0
3 years ago
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