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jeka94
3 years ago
13

3 to the 3rd power - 4 + 5 to the 2nd power​

Mathematics
1 answer:
AnnZ [28]3 years ago
6 0

Answer:

48

Step-by-step explanation:

(3^3)-4+(5^2)

27-4+25

23+25

48

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An element has half life of about 20 days. How much of 3000 gram sample is left after 100 days?
bagirrra123 [75]

t=100

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t 1/2 = 20

Try inserting the numbers in the half-life formula.

4 0
3 years ago
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Find all geometric sequences such that the sum of the first two terms is 24 and the sum of the first three terms is 26.
Serga [27]

Answer:

<h3>The nth term Tn = -8(-1/4)^(n-1) or Tn = 6(1/3)^(n-1) can be used to find all geometric sequences</h3>

Step-by-step explanation:

Let the first three terms be a/r, a, ar... where a is the first term and r is the common ratio of the geometric sequence.

If the sum of the first two term is 24, then a/r + a = 24...(1)

and the sum of the first three terms is 26.. then a/r+a+ar = 26...(2)

Substtituting equation 1 into 2 we have;

24+ar = 26

ar = 2

a = 2/r ...(3)

Substituting a = 2/r into equation 1 will give;

(2/r))/r+2/r = 24

2/r²+2/r = 24

(2+2r)/r² = 24

2+2r = 24r²

1+r = 12r²

12r²-r-1 = 0

12r²-4r+3r -1 = 0

4r(3r-1)+1(3r-1) = 0

(4r+1)(3r-1) = 0

r = -1/4 0r 1/3

Since a= 2/r then a = 2/(-1/4)or  a = 2/(1/3)

a = -8 or 6

All the geometric sequence can be found by simply knowing the formula for heir nth term. nth term of  a geometric sequence is expressed as

if r = -1/4 and a = -8

Tn = -8(-1/4)^(n-1)

if r = 1/3 and a = 6

Tn = 6(1/3)^(n-1)

The nth term of the sequence above can be used to find all the geometric sequence where n is the number of terms

6 0
3 years ago
Need help omg I’ve been stuck
katrin2010 [14]

Answer:

x = -2.75

Step-by-step explanation:

:D

14 - 3 = 11

11 / -4 = -2.75

7 0
3 years ago
What fractions are equivalent to 1/3?
ExtremeBDS [4]

Answer:

#markasbrainliest

1/3

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2/6

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3/9

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4/12

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5/15

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6/18

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7/21

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8/24

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9/27

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10/30

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11/33

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12/36

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13/39

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14/42

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15/45

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17/51

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18/54

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20/60

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21/63

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22/66

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23/69

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24/72

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25/75

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26/78

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27/81

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28/84

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29/87

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30/90

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31/93

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32/96

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33/99

=

34/102

=

35/105

=

36/108

=

37/111

=

38/114

=

39/117

=

40/120

=

41/123

=

42/126

=

43/129

=

44/132

=

45/135

=

46/138

=

47/141

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48/144

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49/147

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50/150

=

51/153

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52/156

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53/159

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54/162

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55/165

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56/168

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57/171

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58/174

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59/177

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60/180

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61/183

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62/186

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63/189

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64/192

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65/195

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66/198

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67/201

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68/204

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69/207

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70/210

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71/213

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72/216

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73/219

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75/225

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76/228

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79/237

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80/240

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83/249

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100/300

3 0
3 years ago
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Consider the figure below. What would be the new coordinates of point P if the figure is translated (2, -3) and then reflected a
zheka24 [161]

Answer:

(2,3)

Step-by-step explanation:

3 0
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