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anyanavicka [17]
3 years ago
8

Please answer this correctly

Mathematics
1 answer:
kap26 [50]3 years ago
5 0

Answer:

There is only one number from 21-25

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What is the slope of this line?
sergiy2304 [10]
The slope of that line is “undefined”. The slope of horizontal lines are 0 and the slope of vertical lines are undefined. 
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3 years ago
Kevin is observing the population of the fish he put into a pond. He built a pond and populated it with 500 fish. The population
laila [671]

Here we will use exponential form, which is

y = y_{0} e^{kt}

Initial value, y0 = 500

Double of 500 = 1000

1000 = 500e^{k*1}

2 = e^k

k= ln (2)

Required equation is

y=500e^{x ln2} \\ y= 500 (2)^x

6 0
4 years ago
Expresión factorizada <br> 12abxyz - 3xyz - 4 ab + 1
BARSIC [14]

Answer:

12+3-4+1=12

Step-by-step explanation:

5 0
3 years ago
constructing a border around a pool a circular pool measures 10 feet across. one cubic yard of concrete is to be used to create
Paha777 [63]

Answer:

We get w = 1.508 feet.

Step-by-step explanation:

Let w be the width of the border.

The diameter of the pool will be 10 feet.

The depth will be 3 inches. So, we will convert it to feet.

3 inches = \frac{3}{12}=0.25 feet

The circular area including pool and the border, radius =(w+5)

Border area = Total area - pool area

= \pi (w+5)^{2} -\pi (5)^{2}

Putting pi = 3.14 and solving the expression we get the following equation:

3.14w^{2}+31.4w-53.5

As given one cubic yard of concrete is to be used, this is the volume to be used.

1 cubic yard = 27 cubic feet

Now using the volume given and thickness of this area that is 0.25 feet.

0.25(3.14w^{2}+31.4w-53.5) =27

=> 0.785w^{2}+7.85w-13.375-27= 0

=> 0.785w^{2}+ 7.85w-13.625= 0

Solving this quadratic equation, we get w = 1.508 feet and w = -11.508 feet.

Neglecting the negative value, we get w = 1.508 feet.

3 0
3 years ago
Find the midpoint of diagonal BD. Figure ABCD is shown. A is at negative 3, 2. B is at 0, 6. C is at 6, 6. D is at 3, 2.
12345 [234]
We just need the points B and D to solve this. B = (0,6) and D = (3,2).
Add the components together and average them.

midpoint(B,D) = ((0 + 3) / 2) , ((6 + 2) / 2)

= (1.5, 4)

Hopefully this is the right answer.
6 0
3 years ago
Read 2 more answers
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