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sergejj [24]
3 years ago
14

A market researcher conducts a survey of residents in three neighborhoods. The residents are asked whether they prefer ice cream

or gelato.
The results, given as joint relative frequencies, are shown in the two-way table. What is the probability that a randomly selected resident of
Arnona will prefer ice cream? Round your answer to the nearest tenth of a percent.
Frogtown Trondale Arnona
Ice Cream
0.31
0.12
0.17
Gelato
0.15
0.16
0.09
Mathematics
1 answer:
Naya [18.7K]3 years ago
3 0

Answer: what’s the answer

Step-by-step explanation:

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pogonyaev

Answer:

1, x = 80

2, z = 5.6

3, w = 18

Step-by-step explanation:

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Answer:Gimme a sec

Step-by-step explanation:

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3 years ago
Consider F and C below. F(x, y, z) = yz i + xz j + (xy + 6z) k C is the line segment from (2, 0, −2) to (5, 4, 2) (a) Find a fun
WITCHER [35]

Answer:

Required solution (a) f(x,y,z)=xyz+3z^2+C (b) 40.

Step-by-step explanation:

Given,

F(x,y,z)=yz \uvec i +xz\uvec j+(xy+6z)\uvex k

(a) Let,

F(x,y,z)=yz \uvec i +xz\uvec j+(xy+6z)\uvex k=f_x \uvec{i} +f_y \uvex{j}+f_z\uvec{k}

Then,

f_x=yz,f_y=xz,f_z=xy+6z

Integrating f_x we get,

f(x,y,z)=xyz+g(y,z)

Differentiate this with respect to y we get,

f_y=xz+g'(y,z)

compairinfg with f_y=xz of the given function we get,

g'(y,z)=0\implies g(y,z)=0+h(z)\implies g(y,z)=h(z)

Then,

f(x,y,z)=xyz+h(z)

Again differentiate with respect to z we get,

f_z=xy+h'(z)=xy+6z

on compairing we get,

h'(z)=6z\implies h(z)=3z^2+C   (By integrating h'(z))  where C is integration constant. Hence,

f(x,y,z)=xyz+3z^2+C

(b) Next, to find the itegration,

\int_C \vec{F}.dr=\int_C \nabla f. d\vec{r}=f(5,4,2)-f(2,0,-2)=(52+C)-(12+C)=40

3 0
3 years ago
Find lcm of 14 and 28 in vertical method​
guapka [62]

Answer:

28

Step-by-step explanation:

We will keep dividing by prime numbers until both are one (we will only consider whole divisions)

```

14 28 | 2

7 14 | 2

7 7 | 7

1 1

Now we <em>m</em><em>u</em><em>l</em><em>t</em><em>i</em><em>p</em><em>l</em><em>y</em> the left collumn, to get the LCM

2 * 2 * 7 = 28

And this was the vertical method, ok?

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