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dalvyx [7]
3 years ago
5

A poll of 827 students at Alpha State College found that 61% of those polled preferred a quarter system to a trimester system. E

stimate a 95% confidence interval for the percentage of students who prefer a quarter system.
Mathematics
1 answer:
Nataly [62]3 years ago
6 0
You can do it make your brain on
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HELP DUE IN 10 MINS!<br><br> x =??
Black_prince [1.1K]

Answer:

x = 11

Step-by-step explanation:

Using Secants ad Segments Theorem we can say;

(x + 7) (7) = (15 + 6) (6)

7x + 49 = (21) (6)

7x + 49 = 126

7x = 77

x = 11

Hope this helps!

3 0
3 years ago
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Lesson 20 5h grade homework
LUCKY_DIMON [66]
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3 years ago
1) The Boateng family has a sickening house whose layout is shown
ZanzabumX [31]

Answer:

The cost will be $1662.136  

The total square ft of carpeting will be 231.1122ft^2    

Step-by-step explanation:

For the bedrooms,  the dimension from the image is shown as(see attahced)

Bedroom #2= 10"8' x10"4'

Bedroom #3= 10"8' x11"4'

let us convert all dimension to feet and solve for the area of the bedrooms

Bedroom #2= 10"8' x10"4'

Bedroom #2=10.67x10.33feet

Area of Bedroom #2= 110.2211ft^2

Bedroom #3 = 10"8' x11"4'

Bedroom #3 =10.67x11.33feet

Area of Bedroom #3= 120.8911ft^2

The total area of both rooms is

Total area=110.2211+120.8911

Total area=231.1122ft^2

now the cost of one square floor s $8.99

hence the cost of 231.1122ft^2 will be

Cost of carpet = 231.1122*8.99

Cost of carpet = $2,077.67

Given that, because you are a contractor, you will receive 20% off

therefore it will cost

= (20/100)*2,077.67

=0.2*2,077.67

=$415.534

The cost will now be  $2,077.67-$415.534

= $1662.136

6 0
3 years ago
Question is in the pic plz help me
Nadusha1986 [10]

Answer:

B (2)

Step-by-step explanation:

(1/2+1/8+3/8)*2=1*2=2

Hope this helps :D

3 0
3 years ago
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Length of shawdow of building 32m. The distance from the top to the tip of the shadow is 38m . find the height of the building
nalin [4]

Answer:

20.49 feet to the nearest hundredth.

Step-by-step explanation:

Using the Pythagoras Theorem:

38^2 = h^2 + 32^2

h^2 = 38^2 - 32^2

h^2 = 420

h = √420

h = 20.494 m.

3 0
4 years ago
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