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erastovalidia [21]
3 years ago
10

Assuming that a 90° arc has an exact length of , find the length of the radius of the circle.

Mathematics
1 answer:
fiasKO [112]3 years ago
7 0
If the exact length is s, you have
.. s = r*θ . . . . θ = π/2
.. r = s/θ
.. r = 2s/π

Fill in the exact length for "s" in the formula and compute to find the radius.
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Please help me<br><br><br><br>The question has 7 marks so please give 7 valid reasons
barxatty [35]
Its a cube with dimensions 4 by "x+1" by "x+11"
So if you multiply all 3 of these you will get the total volume of 924.
So our equation is:
4(x+1)(x+11) = 924
(x+1)(x+11) = 231
x²+12x+11 = 231
x²+12x-220 = 0

Now factor to:
(x+22)(x-10) = 0
Thus x = -22 or 10.

Only 10 makes sense here since we can't have a negative length.  So x = 10.
Now plug in x back into our original expressions to get the dimensions.

The original dimesions are: 4cm x 11cm x 21cm

Ta-dah!

5 0
3 years ago
The campers in cabin C walked 3/5 of 9 miles. how many miles did they walk?
kobusy [5.1K]
3/5×9
(3×9)/5
27/5=25/5+2/5
5 2/5
5.4 miles
7 0
3 years ago
Find the GCF of 38, 76, and 114.
valentina_108 [34]
  • Answer:

<em>GCF = 38</em>

  • Step-by-step explanation:

<em>38 = 2×19</em>

<em>76 = 4×19 = 2²×19</em>

<em>114 = 2×3×19</em>

<em>GCF = 2×19 = 38</em>

3 0
3 years ago
What is the area of the composite figure?
kaheart [24]
A composite has more than 2 ways to divide itself
3 0
3 years ago
Fast forward to the moment after the two outermost recursive calls complete, but before the final Merge step. Thinking of the tw
adoni [48]

Answer:

The answer is 2.

Step-by-step explanation:

1- Suppose we have following array of ten integers: 5 3 8 9 1 7 0 2 6 4.

2- Before the last merge, the left half and the right half must be sorted. So it should be

1 3 5 8 9 0 2 4 6 7

Therefore the solution is 2.

4 0
3 years ago
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