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trapecia [35]
2 years ago
7

Simplify 1.25 (-x -4)

Mathematics
1 answer:
maw [93]2 years ago
5 0

Answer:

-1.25x-5

Step-by-step explanation:

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When the area in square units of an expanding circle is increasing twice as fast as its radius in linear units
alexira [117]

Answer:

r=1/π

Step-by-step explanation:

Area of the circle is defined as:

Area = πr²

Derivating both sides

\frac{dA}{dr}=2πr

\frac{dA}{dt}  =  \frac{dA}{dr} x \frac{dr}{dt}  =  2πr\frac{dr}{dt}

If area of an expanding circle is increasing twice as fast as its radius in linear units. then we have : \frac{dA}{dt}  =2\frac{dr}{dt}

Therefore,

2πr \frac{dr}{dt}  =  2  \frac{dr}{dt}

r=1/π

5 0
3 years ago
Read 2 more answers
I need help Plzzzzzzzzzzz.
Furkat [3]

Answer: 1st one is no solution

and then i cant see the question for the 2nd one

Step-by-step explanation:

8 0
2 years ago
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Find the perimeter and the area of jacobs pool shown in the diagram below be sure to show all your work
Ksenya-84 [330]

Answer: Perimeter- 88m  Area- 207sqm

Step-by-step explanation: To find the perimeter, you have to sort of split the shape into simple boxes. To find the line at the bottom, you have to add 18+11 because you can see that they match the line in the bottom. 18+11=29. You then have to find the P of the left. With the same method, you do 6+9, which equals 15. You add all of the sides together to get 88m. To find Area, you split the boxes into 2 smaller boxes. you then do 18x6 to get 108 for the top box. And 11x9 which equals 99. You add them together to get the area, 207! Hope that makes sense!!!

6 0
2 years ago
Wich one is the solution???: 4(2x-1)=-3x+32<br><br><br>i dont understand this thing....
sweet-ann [11.9K]
First let’s multiply. 8x-4=-3x+32. Start collecting like terms on different sides. 8x+3x=32+4. 11x=36. x=36/11. x=3.27.
5 0
3 years ago
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A scientist hopes to launch a weather balloon on one of the next three mornings. For each​ morning, there is a 40​% chance of su
MakcuM [25]

Answer:

118/125

Step-by-step explanation:

We can find first the probability that there isn’t suitable weather:

60/100 * 60/100 * 60/100 = 3/5 * 3/5 * 3/5 = 27/125

now we have just to do this operation

125/125 - 27/125 = 118/125

8 0
3 years ago
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