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natita [175]
3 years ago
8

10

Mathematics
1 answer:
gtnhenbr [62]3 years ago
7 0

Answer: Bridget was thinking of the number 2.95

Step-by-step explanation:

21.9 / 2 = 10.95

10.95 - 8 = 2.95

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The radius of circle O is 28, and OC =9. What is the length of AB?
aksik [14]
The answer:
the complement of the question proposed one of the choices given beneath:
a) 58.8
b) 53.0
c) 29.4
d) 26.5

as we observe at the figure, AOB an isosceles triangle, and OCB is a right triangle

consider OCB
OC =9, OB= radius = 28
the problem is how to find the length of CA, for that C is a midpoint of segment AB, so AC=BC

BC can be found by using pythagorean theorem
OB²= OC² + CB²,  this implies CB² = OB² - OC²

CB² = 28² - 9² = 784 - 81=703, therefore CB= sqrt (703)=26.51

CB=26.51, since CB= AC, so  AC=CB= 26.51

finally the <span>the length of AB is AB = 2 x CB = 2x AC= 2x 26.51= 53.0
</span>
the answer is b) 53.0

7 0
2 years ago
What is the surface area of the cylinder with height 5 ft and radius 3 ft? Round your answer to the nearest thousandth
BabaBlast [244]

Answer:

150.8ft²

Step-by-step explanation:

A=2πrh+2πr2=2·π·3·5+2·π·32≈150.79645ft²

8 0
3 years ago
What is the difference between (-4) - 6
drek231 [11]

Step-by-step explanation:

the difference is very ez if you know about absaloute vaule so the difference is that 4 is greater either way if it was a negative or positive

oki did somthing wrong the answer  is negative 2 brainlyest plz

8 0
3 years ago
Read 2 more answers
Find the numbers of yards in 63 feet
frutty [35]
You do 63/3 b/c there are 3 feet in one yard. I don't want to tell you answer b/c I want you to do math. CHALLENGE: Do the computation in your head. 
8 0
3 years ago
The factory workers make 756 bows in 36 hours. Suppose the workers make the same number of bows each hour. How many bows do they
iren2701 [21]

Answer:

21 bows per hour

Step-by-step explanation:

when your trying to find the perfect hour you divide.

so 756÷36=21

hope this helps

7 0
3 years ago
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