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SVETLANKA909090 [29]
3 years ago
10

Robert wants to install windows in a bus barn to improve the airflow in the summer months. If Robert makes his own screens, he c

an save money. To have screen material to fold over the window frame, Robert needs to cut 5 1/2 foot by 5 1/2 foot squares. The back wall by the offices requires four windows. For a good cross-flow of air, Robert will build five windows on each of the ohter two walls of the barn. How many square inches of screen will be needed for all of the windows?
Mathematics
1 answer:
DedPeter [7]3 years ago
8 0
=1/2

you add both on each side then subtract 2 from you anser

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Pls help there are 5 pics with multiple questions inside of them pls thank you
Bogdan [553]

Answer:

12. The second one

13. The first one

14. The last one

15. The first one

16. 30 degrees

Step-by-step explanation:

7 0
3 years ago
I. Daska is situated at a distance of 15 miles from both Gujranwala and Sialkot. A bus travels from Gujranwala to Daska at an av
son4ous [18]

Answer:

The average speed of the entire trip is 8.5 miles per hour.

Step-by-step explanation:

Speed = Total  Distance / Total Time

So we have to find the total distance and the total time taken .

1) From Gujranwala to Daska

speed= 25miles/hour           distance = 15miles

Time taken = distance / speed

                   = 15/25= 0.6 hours

2)  From Daska to Sialkot

speed= 40miles/hour           distance = 15miles

Time taken = distance / speed

                   = 40/15= 2.67 hours

3 ) From  Sialkot to Daska

speed= 30miles/hour           distance = 15miles

Time taken = distance / speed

                   = 30/15= 2 hours

The total distance traveled to three places is = 15+ 15+15= 45miles

The Total time taken is = 0.6+ 2.67+ 2= 5.267=5.3 hours

Speed = Total  Distance / Total Time

Speed= 45/ 5.3

          = 8.49=8.5 miles per hour

The average speed of the entire trip is 8.5 miles per hour.

7 0
3 years ago
What is 5⅜ - 3⁸/⁹ ?​
lesya692 [45]

Answer:

1 35/72

Step-by-step explanation:

7 0
3 years ago
Find the simplified form of each expression (x/2y^5)^-2
charle [14.2K]
Hello there!

Simplify the expression.
\frac{4y^{10} }{ x^{2} }

Hope this helps! :)
~Zain
8 0
3 years ago
Could anyone help me with this? Thanks in advance x
alexira [117]

Answer:

find b: since the triangle is right angle triangle apply the Pythagorean theorem

c²+b²=d²

b²=d²-c²

b²=16²-12²

b²=256-144

b²=112

<h2>b=√112 = 4√7</h2>

the sum of the angle of the triangle=180

( in top Δ abd ) sin Ф=opp/hyp

sinФ=b/d=4√7/16= √7/4  radian

convert to degrees : √7/4 *180/π= 37.91 almost 38 degrees

<h2>which makes A= 38 degrees ( adjacent angles are equal when they have common side and do not overlap)</h2>

find a=?? apply law of cosine

a²= d^2 + c^2 − 2dc cosA

a²=16² + 12²-2(16)(12)cos38

a =√(16² + 12²-2(16)(12)cos38)

<h2>a=9.87 rounded to the nearest hundredth</h2>

(i hope it is right )

5 0
3 years ago
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