Answer:
C) 28√17
Step-by-step explanation:
The perimeter is twice the sum of the two given side lengths, so is ...
P = 2(L +W) = 2(2√153 +4√68)
= 2(6√17 +8√17) = 2(14√17)
P = 28√17 . . . . . matches choice C
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This is about simplifying radicals. The applicable rules are ...
√(ab) = (√a)(√b)
√(a²) = |a|
__
153 = 9×17, so √153 = (√9)(√17) = 3√17
68 = 4×17, so √68 = (√4)(√17) = 2√17
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<em>Comment on the problem presentation</em>
It would help if there were actually radicals in the radical expressions. We had to guess based on the spacing and the answer choices.
In any event, this problem can be worked with a calculator. Find the perimeter (≈115.45) and see which answer matches that. (That's what I did in order to verify my understanding of what the radical expressions were.)
Answer:
BC= 4x-10
Step-by-step explanation:
Mid-point is the center position of a segment. It is half the length of the segment.
Given the segment as AC =8x-20
and B is the midpoint of AC, then BC is half the length AC
1/2( 8x-20)= 4x-10
BC= 4x-10
Answer:
10 feet.
Step-by-step explanation:
The formula for the area of a triangle is A=1/2bh
where A is the area B is the base and H is the height.
The area is 60 and the base is 12 so the formula will become
60=1/2*12*h
60=6*h
by dividing both ends by 6
10=h
the height of the triangle is 10.
I hope this helps :)
Let
x--------> the first <span>odd integer
x+2-----> </span>the second odd integer
x+4-----> the third odd integer
we know that
6(x+2)-2x=20+(x+2)+(x+4)
6x+12-2x=26+2x
4x-2x=26-12
2x=14
x=7
the answer is
the numbers are
7, 9 and 11
Answer:
the first one is the correct answer
