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vampirchik [111]
3 years ago
13

A telephone cable runs from A to B to C to D. How much cable is required to run from A to D directly, if

Mathematics
1 answer:
igor_vitrenko [27]3 years ago
3 0
You would have to know the angle measurements if you have a picture of the problem re-ask it and I'll be able to help
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Grace starts with 100 milligrams of a radioactive substance. The amount of the
love history [14]

Answer:

100 is grace's initial amount. w is how much of the substance is being decrased each week. in ryan's equation, 1 is 100% of the substance, so the initial amount, and 0.4 is the amount that is being decreased.

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
The length of the rectangle is 4cm less than its width . what are the dimensions of the rectangle if its area is 140
melomori [17]
Let the width of the rectangle be x
Then length =x-4
Area=x(x-4)=140
x²-4x=140
x²-4x-140=0
x²-14x+10x-140=0
x(x-14)+10(x-14)=0
(x-14)(x+10)=0
Therefore,length=14 cm and  width=10 cm

8 0
3 years ago
How many times does 1/4 go into 3??
nirvana33 [79]
Your answer is <span>0.75 i hope I helped!</span>
4 0
3 years ago
What is the coefficient of x^2 in the expansion of (x+2)^3
goldenfox [79]
(x+2)^3=x^3+2^3+3*x^2*2+3x*2^2=x^3+8+6x^2+12x

The coeficient of the x^2 is 6.
3 0
3 years ago
Draw 2 different shapes with the perimeter of 16 units
Sergeeva-Olga [200]
First, we must understand that to find the perimeter of an object you must add up the lengths of each side.

Some options are:

A square (4 sides) with sides of 4 units long.
4x4=16

A rectangle (4 sides) that is 6 units long and 2 units wide
6+2+6+2=16

An octagon (8 sides) with sides 2 units long
8x2=16
4 0
3 years ago
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