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mars1129 [50]
3 years ago
14

Whats the product for (2z-3)^3

Mathematics
2 answers:
Arturiano [62]3 years ago
5 0

Answer:

8z^3-36z^2+54z-27

Step-by-step explanation:

(2z-3)^3

(2z)^3*(2z)^2*3+3*2z*3^2-3^3

8z^3-3*4z^2*3+3*2z*9-27

8z^3-36z^2+54z-27

mixer [17]3 years ago
4 0

Answer:

8z^3-36z^2+54z-27

Step-by-step explanation:

(2z-3)^3\\(2z-3)(4z^2-12z+9)\\2z(4z^2-12z+9)-3(4z^2-12z+9)\\8z^3-24z^2+18z-12z^2+36z-27\\8z^3-36z^2+54z-27

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A sphere has a volume of V=900 in cubed. What is the surface area?
ycow [4]
First, we must solve for the radius of the sphere:
V=\frac{4}{3}\pir^{3}
r=(3\frac{V}{4 \pi })^{ \frac{1}{3} }
r=(3*\frac{900}{4 \pi })^{ \frac{1}{3} }
r≈5.99

Second, we must solve for surface area:
A=4\pir^{2}
A=4*\pi*5.99^{2}
A≈450.88 in^{2}
4 0
3 years ago
I need a lot of help
vova2212 [387]
15. 1/2 base * <span>hight ,</span> 1/2 * 11 * 6 = the answer is 33 cm^2

16. The "median" is the "middle" value in the list of numbers. To find the median, your numbers have to be listed in numerical order from smallest to largest, so you may have to rewrite your list before you can find the median. So the answer is 155.

17. <span>The mean is the usual average, so I'll add and then divide. (33+25+42+25+31+37+46+29+38) / 9 = 34

18. You have to draw a plot.</span>
4 0
3 years ago
What is the value of the expression -6 3/4 -1 3/12
hoa [83]

Answer:

-8

Step-by-step explanation:

7 0
2 years ago
16. What is the area of a triangle that has a base of 8 inches and a height of 3 inches?​
Luden [163]
<h2>Answer:</h2>

A=12in²

Step-by-step explanation:

b Base 8in

hb Height 3in

A=hbb

                                    2=3·8

                                                                                 2=12in²

7 0
3 years ago
Determine whether the sequence converges or diverges. If it converges, give the limit. 60, 10, five divided by three, five divid
vodomira [7]
A_n = 60, 10, \frac{5}{3}, \frac{5}{18}

Using geometric sequence form, we can rewrite it as:
A_n = a_1 \cdot r^{n-1}
A_n = 60 \cdot \frac{1}{6}^{n - 1}

Since r < 1, there exists a limit, and thus, it is said to converge.
\lim_{n \to \infty} 60 \cdot (\frac{1}{6})^{n - 1}
= 0

Since the ratio is still positive, as n tends towards infinity, the graph of the sequence will never go below the horizontal. Thus, we say that the limit of the function is zero, which means that as we increase the size of n, eventually after the infinite-th time, it will hit zero.
6 0
3 years ago
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