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miskamm [114]
3 years ago
8

S12 for the series 1+2+4+8+

Mathematics
1 answer:
Maru [420]3 years ago
8 0
S_{12}=1+2+4+8+\cdots+2048
S_{12}=2^0+2^1+\cdots+2^{11}
2S_{12}=2^1+2^2+\cdots+2^{12}

\implies S_{12}-2S_{12}=2^0-2^{12}
-S_{12}=1-2^{12}
S_{12}=2^{12}-1
S_{12}=4096-1=4095
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lidiya [134]
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3 years ago
Given the height, h, and the volume v of a certain cylinder, alex uses the formula v ph r 5 !§ to compute its radius, r, to be 1
dmitriy555 [2]
We know that
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7 0
3 years ago
find the equation of parabola when point of intersection of directrix and axis is at (0,4) and focus at (6,4) ​
Allushta [10]

Answer:

Find the coordinates of the point of intersection of the axis and the directrix of the parabola whose focus is (3,3) and directrix is 3x−4y=2. Find also the length of the latus-rectum.

Step-by-step explanation:

6 0
3 years ago
Can someone help please and thanks
OleMash [197]

Answer:

Step-by-step explanation:

Find the Supplement to 101

Supplementary angles = 180 degrees

180 = 101 + unknown                               Subtract 101 from 180

unknown = 79

Because the upper triangle is marked as having 2 equal sides, the left angle is also 79 degrees,

Now the vertex angle is 79 + 79 + y = 180   All triangles have 180 degrees

158 + y = 180                                                   Subtract 158 from both sides

y = 180 - 158

y = 22

y is vertically opposite the vertex angle of the lower triangle. Both the sides are marked as equal, so the angles opposite them are equal as well.

x + x + 22 = 180                                             Combine

2x + 22 = 180                                                 Subtract 22 from both sides.

2x = 180 - 22

2x = 158                                                          Divide by 2

x = 158/2

x = 79

4 0
2 years ago
Help please? &lt;3 asap​
lisov135 [29]

Answer:b

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
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