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Kazeer [188]
3 years ago
11

After being dropped a certain ball always bounces back to 2/5 of the height of its previous bounceAfter the first bounce it reac

hes a height of 125 inchesHow high (in inches) will it reach after its fourth bounce?
A20
B15
C8
D5
E3.2
Mathematics
1 answer:
kap26 [50]3 years ago
8 0

Answer:

8 inches.

Step-by-step explanation:

In the first bounce, the height that the ball reaches was 125 inches.

If the ball always bounces back to \frac{2}{5} of the height, then after 2nd bounce it will reach (125 \times \frac{2}{5}) = 50 inches height.

Again, after 3rd bounce, it will reach (50 \times \frac{2}{5}) = 20 inches height.

And, after 4th bounce, it will reach (20 \times \frac{2}{5}) = 8 inches height. (Answer)

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Whats the ratio of 0.6 to 12 to the lowest term
Westkost [7]
You would divide the numbers as much as possible until you get to a point where they will not divide any more. So,
<u>0.6</u>= (Divide by 2) =<u>0.3</u>= (divide by 3) =<u>0.1</u>    <u>
</u>12                          6                           2
<u>
</u>After that, you cannot divide any more, so the final answer is 0.1/2 or 0.1:2 or 
<u />0.1 to 2 (however you are supposed to write it)  I hope that helps! 
4 0
3 years ago
A rectangle is (x+10)ft by (x+4)ft. If a square of length xft on a side is cut from the rectangle, represent the remaining area
Andrei [34K]

Answer: A(x)=14x+40

Step-by-step explanation:

Given : The dimension of a rectangle is  (x+10)ft. by (x+4)ft.

Then, Area of rectangle will be :-

A_1(x)=(x+10)\times(x+4)=x^2+(10+4)x+40\\\\\Rightarrow\ A_1(x)=x^2+14x+40

If a square of length xft on a side is cut from the rectangle, then the area of the square :-

A_2(x)=x^2

Now, the remaining area in the form of a polynomial function A(x) will be :-

A(x)=A_1(x)-A_2(x)\\\\=x^2+14x+40-x^2=14x+40

Hence, the  remaining area in the form of a polynomial function A(x) will be :-

A(x)=14x+40

7 0
3 years ago
Which shows the rational expression written using the least common denominator?
aleksandr82 [10.1K]

Answer:

(x + 1)/4x² + 4(x + 1)/4x²

Step-by-step explanation:

x+1/4x² + x+1/x²

The above can be simply as follow:

Find the least common multiple (LCM) of 4x² and x². The result is 4x²

Now Divide the LCM by the denominator of each term and multiply the result with the numerator as show below:

(4x² ÷ 4x²) × (x + 1) = x + 1

(4x² ÷ x²) × (x + 1) = 4(x + 1)

x+1/4x² + x+1/x² = [(x + 1) + 4(x + 1)]/ 4x²

= (x + 1)/4x² + 4(x + 1)/4x²

Therefore,

x+1/4x² + x+1/x² = (x + 1)/4x² + 4(x + 1)/4x²

5 0
3 years ago
HELP WILL GIVE BRAINLIEST
Mariana [72]
On the 4th question I can’t tell if those are dots or arrows on the line above “AN” when it says “B lies on AN”, if those are 2 dots on the little line don’t check it, if they are 2 little arrows on the line then check the box, but other than that the rest of the checked are right!!

5 0
2 years ago
I need help very fast please!
postnew [5]
I’m not sure maybe D
7 0
3 years ago
Read 2 more answers
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