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nadya68 [22]
4 years ago
12

If all the dimensions of a triangle are doubled,the area of the triangle will be doubled,too

Mathematics
2 answers:
sergey [27]4 years ago
7 0
No this statement is not truee
DochEvi [55]4 years ago
3 0
A1=bh/2

A2=2b*2h/2=2bh

A2/A1=2bh/(bh/2)

A2/A1=4bh/bh=4

So the area is quadrupled not doubled...
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Archy [21]

Answer:

31.42cm

Step-by-step explanation:

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3 years ago
If the DIAMETER of a circle is 18 inches, what is the length of the radius? *
bekas [8.4K]

Answer:

9 inches

Step-by-step explanation:

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5 0
3 years ago
Read 2 more answers
Help please! (no one was answering it in physics and i really need help)
aivan3 [116]

Let v_0 be the cat's speed just as it leaves the edge of the table. Then taking the point 1.3 m below the edge of the table to be the origin, the cat's horizontal position at time t is given by

x(t)=v_0t

and its height is

y(t)=1.3\,\mathrm m-gt^2

where g is 9.8 m/s^2, the magnitude of the acceleration due to gravity.

The time it takes for the cat to hit the ground is t with

0=1.3\,\mathrm m-gt^2\implies t=\sqrt{\dfrac{1.3\,\rm m}g}\approx0.36\,\mathrm s

(Unfortunately, this doesn't match any of the given options...)

The cat lands 0.75 m away (horizontally) from the edge of the table, so that its speed v_0 was

0.75\,\mathrm m=v_0(0.36\,\mathrm s)\implies v_0\approx2.08\dfrac{\rm m}{\rm s}

(Again, not one of the answer choices...)

I'm guessing there's either a typo in the question or answers.

6 0
3 years ago
A dealer paid $7,000 for a car at an auction. At the dealership, a salesperson sold the car for 30% more than the auction price.
timurjin [86]
30% of $7000 is $2100
25% of $2100 is $525
7 0
3 years ago
Which expresses 6y : 9y in its simplest form? A. 9 : 6 B. 2 : 3 C. 6 : 9 D. 3 : 2
Monica [59]
If you divide each number, 6:9, by 3 you will get the simpliest form. My answer will have to be B. 2:3
3 0
4 years ago
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