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3 years ago

HELP ME PLEASE

Mathematics

2 answers:

Zepler [3.9K]3 years ago

8 0

Answer:

Step-by-step explanation:

Given is a table showing the survey for preference of spring/fall by males/females

Table is as follows:

Spring Fall Total

Male 26 19 45

Female 22 29 51

Total 48 48 96

To prepare two way frequency table

Males spring together = 26 hence prob = 26/96

Males fall together = 26 hence prob = 19/96

Feales spring together = 22 hence prob = 22/96

Females spring together = 29 hence prob = 29/96

Spring Fall Total

Male 0.271 0.198 0.469

Female 0.229 0.302 0.531

Total 0.500 0.500 1.00

GrogVix [38]3 years ago

7 0

Male 0.271 0.198
Female 0.229 0.302

I think that's right because that's what my quiz said

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3/11 *2 = 6/22
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3 years ago

Ken has already baked 4 pies and he can bake 1 pie with each additional cup of sugar he buys. With 31 additional cups of sugar,

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Ken can bake 1 pie with each additional cup of sugar he buys. 1 pie =1 cup

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3 years ago

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3 years ago

VEEL

Andre45 [30]

Answer:

$a_n=-3(3)^{n-1}$ ; {-3,-9, -27,- 81, -243, ...}

$a_n=-3(-3)^{n-1}$ ; {-3, 9,-27, 81, -243, ...}

$a_n=3(\frac{1}{2})^{n-1}$ ; {3, 1.5, 0.75, 0.375, 0.1875, ...}

$a_n=243(\frac{1}{3})^{n-1}$ ; {243, 81, 27, 9, 3, ...}

Step-by-step explanation:

The first explicit equation is

$a_n=-3(3)^{n-1}$

At n=1,

$a_1=-3(3)^{1-1}=-3$

At n=2,

$a_2=-3(3)^{2-1}=-9$

At n=3,

$a_3=-3(3)^{3-1}=-27$

Therefore, the geometric sequence is {-3,-9, -27,- 81, -243, ...}.

The second explicit equation is

$a_n=-3(-3)^{n-1}$

At n=1,

$a_1=-3(-3)^{1-1}=-3$

At n=2,

$a_2=-3(-3)^{2-1}=9$

At n=3,

$a_3=-3(-3)^{3-1}=-27$

Therefore, the geometric sequence is {-3, 9,-27, 81, -243, ...}.

The third explicit equation is

$a_n=3(\frac{1}{2})^{n-1}$

At n=1,

$a_1=3(\frac{1}{2})^{1-1}=3$

At n=2,

$a_2=3(\frac{1}{2})^{2-1}=1.5$

At n=3,

$a_3=3(\frac{1}{2})^{3-1}=0.75$

Therefore, the geometric sequence is {3, 1.5, 0.75, 0.375, 0.1875, ...}.

The fourth explicit equation is

$a_n=243(\frac{1}{3})^{n-1}$

At n=1,

$a_1=243(\frac{1}{3})^{1-1}=243$

At n=2,

$a_2=243(\frac{1}{3})^{2-1}=81$

At n=3,

$a_3=243(\frac{1}{3})^{3-1}=27$

Therefore, the geometric sequence is {243, 81, 27, 9, 3, ...}.

6 0

3 years ago