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olya-2409 [2.1K]
3 years ago
9

A house blueprint has a scale of 1 in. : 4 ft. The length and width of each room in the actual house are shown in the table. Com

plete the table by finding the length and width of each room on the blueprint.   Living room Kitchen Office Bedroom Bedroom Bathroom Actual l w (ft.) 20 8 16 16 8 16 8 16 20 20 6 8 Blueprint l w (in.)

Mathematics
2 answers:
SVETLANKA909090 [29]3 years ago
7 0

Answer:

It’s A and D.

Step-by-step explanation:

It just gave me the answers.

Mariulka [41]3 years ago
3 0
We know that
scale------------> 1 in/4 ft
[blueprint]=scale*[actual]

Part 1) <span> Living room 
lenght (20 ft)  -------------> </span>[blueprint]=(1/4)*20=5 in<span>
width (8 ft) ----------------> </span>[blueprint]=(1/4)*8=2 in

Part 2) Kitchen   
length (16 ft)  -------------> [blueprint]=(1/4)*16=4 in
width (16 ft) ----------------> [blueprint]=(1/4)*16=4 in

Part 3) Office   
length (8 ft)  -------------> [blueprint]=(1/4)*8=2 in
width (16 ft) ----------------> [blueprint]=(1/4)*16=4 in

Part 4) Bedroom 1   
length (8 ft)  -------------> [blueprint]=(1/4)*8=2 in
width (16 ft) ----------------> [blueprint]=(1/4)*16=4 in

Part 5) Bedroom 2   
length (20 ft)  -------------> [blueprint]=(1/4)*20=5 in
width (20 ft) ----------------> [blueprint]=(1/4)*20=5 in

Part 6) <span>Bathroom</span>   
length (6 ft)  -------------> [blueprint]=(1/4)*6=1.5 in
width (8 ft) ----------------> [blueprint]=(1/4)*8=2 in

see the attached figure to view the table

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Gnoma [55]

Answer:b

Step-by-step explanation:

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3 years ago
Philip Morris wishes to determine if there is a difference between the proportion of women and proportion of men who smoke cigar
uranmaximum [27]

Answer:

Step-by-step explanation:

This is a test of 2 population proportions. Let 1 and 2 be the subscript for the women and men who smoke respectively. The population proportion of women and men who smoke would be p1 and p2 respectively.

p1 - p2 = difference in the proportion of women and men who smoke.

The null hypothesis is

H0 : p1 = p2

p1 - p2 = 0

The alternative hypothesis is

Ha : p1 > p2

p1 - p2 > 0

it is a right tailed test

Sample proportion = x/n

Where

x represents number of success(number of complaints)

n represents number of samples

For women

x1 = 14

n1 = 110

p1 = 14/110 = 0.13

For men,

x2 = 7

n2 = 95

p2 = 7/95 = 0.07

The pooled proportion, pc is

pc = (x1 + x2)/(n1 + n2)

pc = (14 + 7)/(110 + 95) = 0.1

1 - pc = 1 - 0.1 = 0.9

z = (p1 - p2)/√pc(1 - pc)(1/n1 + 1/n2)

z = (0.13 - 0.07)/√(0.1)(0.9)(1/110 + 1/95)

z = 1.47

From the options given, the test statistic is

e. none of these is correct.

Since it is a right tailed test, we will look at the area to the right of z = 1.47. The p value would be

p value = 1 - 0.9292 = 0.078

Since alpha, 0.005 < than the p value, 0.078, then we would fail to reject the null hypothesis. Therefore, the data does not indicate that the proportion of women who smoke cigarettes is higher than the proportion of men who do at α=.005

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2 years ago
Changing Dimensions of 3-D Figures
Leni [432]

The prisms are congruent if the lengths of corresponding edges are in a 1:1  ratio, the volumes and the base areas are equal and the prisms have same height                                                                                                                                  

Step-by-step explanation:

For the two prisms to be congruent the following properties should hold TRUE

The lengths of corresponding edges are in a 1:1  ratio.

The volumes are equal.

The base areas are equal.

The prisms have the same height.  

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NO WRONG ANSWERS Two customers took out car loans from a bank. Marcus took out a 5-year loan for $10,000 and paid 4.7% annual si
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A banner is in the shape of a right triangle. the area is 63 inches. The height of the banner is 4 in less than twice the width
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Area=1/2 times base times height
note:bh=base times height

a=1/2bh
b=width

h=-4+2w
h=2w-4
subsitute
a=1/2w(2w-4)
a=1/2(2s^2-4w)
a=w^2-2w
a=63
63=w^2-2w
subtract 63 from both sdies
0=w^2-2w-63
factor
find what 2 numbers multiply to get -63 and add to get -2
the numbers are -9 and 7
so
0=(w-9)(w+7)
if xy=0 then x and/or y=0

so
w-9=0
w+7=0

solve each
w-9=0
add 9 to both sdies
w=9

w+7=0
subtract 7 from both sides
w=-7
width cannot be negative so this can be discarded

width=9

subsitute
l=2w-4
l=2(9)-4
l=18-4
l=14


legnth=14 in
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