At 2pm the level of water in the pool was 10 feet.At 6pm the level of water was 2 feet .Find the constant rate of the water.

Find the area with Heron's formula pls help !

KatRina [158]

Answer:

3320in²

Step-by-step explanation:

heron formula = √s(s-a)(s-b)(s-c)

when s = (a+b+c)/2

s = (16+35+25)/2 = 76/2 = 38

heron formula = √s(s-a)(s-b)(s-c) = √78(78-16)(78-35)(78-25) = √78(62)(43)(53) = √11021244 = 3319.82589905≈3319.8in²(nearest tenth)

8 0

3 years ago

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Please help ASAP! I’d appreciate it! :)

posledela

The answer is the third one :)

3 0

3 years ago

Alan and debra want to find the mean number of movies students in their class

zimovet [89]

Answer:

Step-by-step explanation:

well if alan and debra are in separate class rooms. They would have to add up the number of movie students in each class room alan has X movie students and debra has Y movie students

Mean number = Average number = sum of the values / number of values

Mean number = (X + Y) / 2

3 0

3 years ago

Tito wrote the following on the board. What is the unknown number?

lora16 [44]

400
wwwwwwwwwwwwwwwwwwee

7 0

3 years ago

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Determine if the graph is a function then state the domain and range.

nignag [31]

<h3>Explanation</h3>

A function is a set of relation that doesn't have repetitive domain. If we want to know if a graph is function or not, we have to do the line test.

Line Test

Draw a vertical line. Make sure that a line passes through a graph.
See if a line intercepts a graph more than one point or just only one.

Result

If a line intercepts a graph more than one point, it is not a function.

However, if a line only intercepts a graph just one point, it is indeed a function.

The given graph from the question is a function because it passes line test.

Domain and Range

Domain is the set of all x-values, meaning we only focus on x-axis or x-value only.

Range is the set of all y-values. We only focus on y-value or y-axis for Range.

Determine Domain from Graph

We can simply say that the domain is from starting domain or x-coordinate point to end x-coordinate point. For example, if a graph starts at x = -4 and ends at x = 2, we can say that - 4<=x=2.

Determine Range from Graph

Similar to Domain except Range starts from the minimum value or point to the maximum point or value. For example if a graph starts at min point = 6 and max point = 9. We can say that 6<=y<=9.

From the graph, the domain starts from negative infinity to positive infinity. Meaning that x can be any numbers. Hence, the domain is set of all real numbers. For range, the minimum value is 0 and max value is positive infinity. Therefore we write y>=0.

<h3>Answer</h3>

 $\begin{cases} x \in \mathbb{R} \\ y \geqslant 0 \end{cases}$ 

Domain is set of all real numbers.

Range is greater or equal to 0.

8 0

2 years ago