Question 40 of 43
Researchers conduct a study to evaluate the level of
pollution present in a river. They select several locations
along the river and then take a sample of water from each
location.
What is the population under study?

ILL GIVE BRANLIEST OR HOWEVER YOU SPELL IT

[tex]\huge \pink\star\huge{ \pink{\bold {\underline {\underline {\red{Answer }}}}}} [/tex]

➭Doing it all using mental math

[tex] 1037 + 4 \\ =1041[/tex]

[tex]1041 + 76 \\ = 1117[/tex]

Answer:

The mean is 12.

Step-by-step explanation:

Add all the given numbers

7 + 14 + 15 + 9 + 11 + 14 + 11 + 10 + 17

Which equals to 108

You divide 108 by the total numbers added which in this case is 9.

108/9 = 12

Hope this helps :)

A. True

In a circle, all radii have the same length. The radius is the distance from the center of the circle to any point on its circumference. Since the center is equidistant from all points on the circumference, all radii will have the same length. Therefore, the statement is true.

The equation of the ellipse with foci at (0 ±10) and vertices at (0 ±11) is [tex]\frac{x^2}{21} + \frac{y^2}{100} = 1[/tex]

We have:

Vertices = (0, ± 11),

Foci = (0, ± 10)

The vertices and the foci are represented as:

Foci = (0, ± a)

Vertices = (0, ± c)

So, we have:

a = 10

c = 11

The equation of b is calculated using:

b² = c²- a²

So, we have:

b² = 11²- 10²

Evaluate

b² = 21

The equation of the ellipse is then represented as:

[tex]\frac{x^2}{b^2} + \frac{y^2}{a^2} = 1[/tex]

This gives

[tex]\frac{x^2}{21} + \frac{y^2}{10^2} = 1[/tex]

[tex]\frac{x^2}{21} + \frac{y^2}{100} = 1[/tex]

Hence, the equation of the ellipse is [tex]\frac{x^2}{21} + \frac{y^2}{100} = 1[/tex]

Read more about ellipse equations at:

https://brainly.com/question/10411406

#SPJ2

Answer:

x^2/221+Y^2/121=1

Step-by-step explanation:

Answer:

The question is a bit incorrect as there isnt mentioned how many cups are there.But if you meant how many 30ml cups can Jannie fill it would be 66.66 cups or 67/66 cups .

Step-by-step explanation:

If you would correct your answer I would try my best to give you the brainliest answer.

Answer:

120cm^3

Step-by-step explanation:

Answer:

you would have 8 cents

Step-by-step explanation:

:D hope this helps!!

Answer:

A. Second Grade

Step-by-step explanation:

Answer:

871.5

Step-by-step explanation:

directly proportional

y = kx

y = 12 when x = 14

12 = k(14)

k = 12/14

k = 6/7

--------------------------

what is the value of x when y = 747

747 = (6/7) * x

Multiply both sides by 7/6

747 * 7/6 = x

871.5 = x

Answer:

Simplification of an algebraic expression can be defined as the process of writing an expression in the most efficient and compact form without affecting the value of the original expression. The process entails collecting like terms, which implies adding or subtracting terms in an expression.

Answer:

-9, -5, -4.1, -4

[tex]\\q\leq -4[/tex]

Step-by-step explanation:

I think what you're missing here is that there is a negative sign in front of the q. This means that whatever number you put in for q will be multiplied by negative 1. Positive numbers will become negative, and negative numbers will become positive.

If you substitute 9 for q you will get [tex]-9\geq 4[/tex], which is clearly not true, because -9 is way less than 4.

For writing the equation you divide both sides by -1. When you do this however, you must flip the inequality sign

[tex]-q\geq 4\\q\leq -4[/tex]

the > sign turned into <, and the q and 4 switched signs.

Answer:

Step-by-step explanation:

To solve this inequality, isolate the term of y from one side of the equation.

y-24<16

First, add 24 from both sides.

[tex]\sf{y-24+24<16+24}[/tex]

Solve.

Add.

[tex]\sf{24+16=40}[/tex]

[tex]\large\boxed{y<40}[/tex]

Therefore, the solution is y<40.

y=25 should be subtract by 24 is less than 16.

25-24<16

Solve.

Subtract.

25-24=1

Rewrite the problem down.

1<16

These statements are true.

[tex]\huge\text{Hey there!}[/tex]

[tex]\large\text{We know that }<\large\text{ is less than and }> \large\text{ is greater than.}[/tex]

[tex]\large\text{If y = 25, then substitute it into the given equation or inequality.}[/tex]

[tex]\mathsf{\underline{25}-24<16}[/tex]

[tex]\mathsf{25-24=\bf 1}[/tex]

[tex]\large\text{16 is \underline{greater than} 1 but 1 is \underline{less than} 16}[/tex]

[tex]\mathsf{1<16}[/tex]

[tex]\boxed{\boxed{\large\text{Therefore, your answer is: \boxed{\mathsf{\bold{1<16}\ \& \ it \ is \bold{\ TRUE}}}}}}\huge\checkmark[/tex]

[tex]\text{Good luck on your assignment and enjoy your day!}[/tex]

~[tex]\frak{Amphitrite1040:)}[/tex]

Answer:

Similar, SSS similarity JKL

Step-by-step explanation:

Answer:

C and B

Step-by-step explanation:

Answer: 17

Step-by-step explanation:

9514 1404 393

Answer:

  7.4

Step-by-step explanation:

Put the given value into the formula and do the arithmetic.

  R = log(2.4×10^7)

  R ≈ 7.3802 ≈ 7.4

The earthquake is about 7.4 on the Richter scale.

Answer:

2×2+72-15

=4+72-15

=76-15

=61

3×2+13×-10

=6-130

=-124

Answer:

can u zoom into it

Step-by-step explanation:

Answer:

both outputs are x so f(x) and g(x) are inverses of each other

Step-by-step explanation:

Answer:

what are the options of answers?

Step-by-step explanation:

Answer: 21

Step-by-step explanation: Okay but actually its 19 :)

Answer:-4 and 0.573

Step-by-step explanation:

Answer:

i think it's solar

Step-by-step explanation:

okayyyyyyyyyyyyyyyyy

Answer:

solar

Step-by-step explanation:

oil ,coal and natural gas are fossil fuels

Answer:

c

Step-by-step explanation:

Answer:

Your expected loss per game is of $0.31.

Step-by-step explanation:

In a standard 52-card deck, we have that:

There are 12 face cards.

What is your expected gain or loss (in dollars) per game?

12/52 probability of winning $2.

1 - 12/52 = 52/52 - 12/52 = 40/52 probability of losing $1. So

[tex]E = \frac{12}{52}*2 - \frac{40}{52}*1 = \frac{24 - 40}{52} = -\frac{16}{52} = -0.31[/tex]

Negative, so a loss is expected.

Your expected loss per game is of $0.31.

Answer:

yˆ=32.11⋅1.08x

Step-by-step explanation:

just took the test

Option: A is the correct answer.

The quadratic regression equation for the data set is:

   A. y = 0.056x²+1.278x-0.886

An equation is a  mathematical statement that is made up of two expressions connected by an equal sign.  In its simplest form in algebra, the definition of an equation is a mathematical statement that shows that two mathematical expressions are equal. For instance, 3x + 5 = 14 is an equation, in which 3x + 5 and 14 are two expressions separated by an 'equal' sign.

here, we have,

We are given a set of data value as:

        x                y

        3             3.45

        5              6.9

        6             8.79  

        8             12.91

        10            17.48

        12            22.49

        15            30.85

On plotting these points on a scatter plot we see that the line that best fits these data points is a parabola i.e. the equation is a equation of a quadratic function.

The equation of the line of best fit is:

y = 0.056x²+1.278x-0.886

To learn more on equation click:

brainly.com/question/24169758

#SPJ3

Answer:

B. 1.618

Step-by-step explanation:

I calculated it logically