Parts of New Orleans lie 0.5 meter below sea level. After d days of rain, the equation w=0.3d ± 0.5 represents the water level w in meters. Find the zero, and explain what it means in the context of this situation.

Answers

Answer 1

Answer:

[tex]w = - 0.5[/tex]

Step-by-step explanation:

Given

[tex]w = 0.3d - 0.5[/tex] [The correct equation]

Required

Find and interpret the 0

To do this, we set [tex]d = 0[/tex]

Substitute 0 for d in [tex]w = 0.3d - 0.5[/tex]

[tex]w = 0.3 * 0 - 0.5[/tex]

[tex]w = 0 - 0.5[/tex]

[tex]w = - 0.5[/tex]

This means that the level of rain is 0.5m below the sea at day 0


Related Questions

There are 9 red marbles and 4 blue marbles in a bag? What is the ratio blue marbles to all marbles in the bag? Ratio of blue marbles to red marbles

Answers

Answer:

4/13

Step-by-step explanation:

There are 9+4=13 marbles in total.

So, the ratio is 4/13.

The ratio of blue marble to all marbles is 4: 13 while blue marbles to red marbles ​ are 4: 9.

What are the ratio and proportion?

The ratio is the division of the two numbers.

For example, a/b, where a will be the numerator and b will be the denominator.

Proportion is the relation of a variable with another. It could be direct or inverse.

Given that,

Number of blue marbles = 4

Number of red marbles = 9

Total number of marbles = 9 + 4 = 13

The ratio of blue to total marble = 4/13

The ratio of blue to red = 4/9

Hence "The ratio of blue marble to all marbles is 4: 13 while blue marbles to red marbles ​ are 4: 9.".

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what is the volume of the right rectangular prism?
A. 16 in³
B. 64 in³
C. 140 in³
D. 166 in³​

Answers

Answer:

c

Step-by-step explanation:

length times width times height so 4 times 5 times 7 equals 140

Answer:

The Answer Is C. 140 in³

Step-By-Step Explanation:

You Times Length X Width X Height Or In Other Words 4 X 5 X 7

I Also Took The Quiz And It Was Right ^^

What is 50% of 30 minutes?

Answers

Answer:

50/100×30

15..........

well 50% is a half so that’s 15 minutes
hope this helped

Plz hurry it’s urgent Thank you

Answers

The answer is A
I have no explanation:/

Which of the following equations will produce the graph shown below

Answers

Answer:

the answer is c.

Step-by-step explanation:

because it is.

That is c because it is a parabola opened up, so we can understand that a>0(in equation)

Use an exponential expression to calculate the area covered by purple loosestrife 7 years from now. Is this a valid
prediction? What does this result tell you about the constraints on the exponential model?

Answers

The area of the wetland that will be covered in purple loosestrife 7 years from now is modeled by this expression.

500(1.2)^7

After evaluating the expression, the model predicts that approximately 1,792 acres of the wetland will be covered in purple loosestrife 7 years from now. This is not a valid prediction because the total area of the wetland is only 1,240 acres. So a constraint on the model is that the value of the expression 500(1.2)^t must be less than or equal to 1,240.

Answer: 500(1.2)^7

Step-by-step explanation:

PLATO

A 50 ohm load dissipates 100 W of power. How much voltage is across the load?​

Answers

Answer:

5000 volts

Step-by-step explanation:

we know v×IR so voltage equals current*resistance so 50*100 so 5000

9514 1404 393

Answer:

  about 70.7 V

Step-by-step explanation:

The relation between power and voltage and resistance in a resistive circuit is ...

  P = V^2/R

so ...

  V = √(PR)

  V = √(100·50) = √5000

  V ≈ 70.7 . . . . volts

You and 8 friends are going to be attending a birthday party. When trying to decide which cake to purchase, your friends decide they want the one that would give them the largest equal slices of cake possible. Should you ask the baker to make cake A OR cake B? *

Answers

Answer:

A

Step-by-step explanation:

u get equal portions bc its a square

pls wali ok answer du today

Answers

Answer:

B, 5/4s

Step-by-step explanation:

If something increases by 1/4, it means that it is the original number + 1/4 of it.

Ex: x + 1/4x = 5/4x

So if we substitute s for x, the answer must be 5/4s, or B


I’m pretty sure it’s B I think

Bernard designs motorized bicycles at Smart Gear Technologies. His total earnings are
$54,000 this year. Bernard pays $201 in payroll taxes for every $1,000 he earns.
What is Bernard's net income for this year?

Answers

Answer: $43146

Step-by-step explanation:

So his total earning is $54,000. He has to pay $201 for every $1,000 he earns. So 54,000/1,000= 54. So now he has to pay 54*201=10854, 54000-10854=43146. His net income for this year is $43146.

PLISSSSS HELPPPPPPPPP

can you help me please

Answers

Answer:

1. any order

2. subtract as the opposite is adding

3. combine like terms

4.

5. opposite of a sum

Step-by-step explanation:

i beileve theese are the answers

Whoever answers gets brainlist!

Answers

r1= -27/10, r2= -2 7/10

Answe

Step-by-step explanation:

PLEASE HELP ME WITH THIS QUESTION

Answers

Answer:

66°

Step-by-step explanation:

∠A = ½·132° = 66°

Can someone please simplify and explain i need this​

Answers

25x^6 y^6 / 5x^4 y^3

Part 1:

(solve one variable at a time)
25x^6 / 5x^4
(first subtract the exponents then divide the coefficients)
= 5x^2

Part 2:

y^6 / y^3
(subtract the exponents)
= y^3

Part 3:

(put them together for your final answer)
= 5x^2y^3

hope this helps !! if you’re still confused just lmk and i can try to explain into further detail in the comments

Your meal with tax is $49.79 including 9% sales tax. What is the sales tax amount?

Answers

Answer:

4.48

Step-by-step explanation:

multiply 49.79*0.09

What is the constant of proportionality?


y = 11x

Please I need help I have to turn this in today!

Answers

9514 1404 393

Answer:

  11

Step-by-step explanation:

The constant of proportionality is the coefficient of x in the equation.

It is 11.

no one answered it last time :(

Answers

Answer:

Step-by-step explanation:

The perimeter is 28".

The total length of three sides of the square = 28-5-5 = 18", so the side length of the square is 18/3 = 6".

The area of the triangle is ½(6)(4) = 12 square inches.

The area of the square is 6² = 36 square inches.

Total area = 12+36 = 48 square inches.

Which of the following is NOT a common characteristic of a binomial distribution?

Question 28 options:

There are exactly two possible outcomes: success and failure.


The probability of success is the same in all trials.


There are a fixed number of observations.


You should perform x trials until you observe a success.


Each trial is independent

Answers

Answer:

You should perform x trials until you observe a success.

Step-by-step explanation:

By process of elimination:

A binomial experiment is a statistical experiment that must meet certain requirements:

Each outcome is either a success (P) or a failure (Q).

All trials are independent.

There are a fixed number of "n" trials.

The probability of success, p, is the same for each trial.

The probability of success, p, is the same for each trial.

You should perform x trials until you observe a success.

We have given that,

There are exactly two possible outcomes success and failure.

We have to determine the following is NOT a common characteristic of a binomial distribution.

By process of elimination

A binomial experiment is a statistical experiment that must meet certain requirements

Each outcome is either a success (P) or a failure (Q).

What is the independent probability?

Independence is a fundamental notion in probability theory, as in statistics and the theory of stochastic processes.

All trials are independent.

There are a fixed number of n trials.

The probability of success, p, is the same for each trial.

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The perimeter of a rectangle is 54 inches.
Its length is 15 inches.
What is the width (w)?

Answers

Answer:

12

Step-by-step explanation:

if the perimeter is 54, and the length is 15,

first double the length (to include both sides of the rectangle):

15(2)=30

subtract that by 54:

54-30=24

to find the width we would divide 24 by 2, because 24 represents both sides of the rectangle:

24/2=12

the width is 12.

Which is a better estimate for the volume of a bottle of glue?
47 gallons
47 teaspoons

Answers

Answer:

47 teaspoons

Step-by-step explanation.

Gallons are to big, teaspoons are way smaller

47 tablespoons because you think a bottle of glue is small gallons is way to much but yet tablespoons is perfect to fill up a little tiny bottle of glue

HELP!!! PLEASEE ITS OVER DUEEE!!

Answers

Answer:

trueeeeeeeeeeeeeeeeeeee

Answer:

yes

Step-by-step explanation:

20% оf x is 130. What is x?
x Clear

Answers

Answer:

650

Step-by-step explanation:

brainliest please

Find the midpoint of A and B where A has coordinates (2,9)
and B has coordinates (7,4).
y
10
9
8
7
6
5
4
3
2
1
х
O
1 2 3 4 5 6 7 8 9 10

Answers

Answer:

[tex](\dfrac{9}{2}, \dfrac{13}{2})[/tex]

Step-by-step explanation:

The coordinates of A = (2,9)

The coordinates of B = (7,4)

Let M (x,y) be the mid point of A and B.

[tex]M(x,y)=(\dfrac{x_1+x_2}{2}),(\dfrac{y_1+y_2}{2})\\\\=\dfrac{2+7}{2}, \dfrac{9+4}{2}\\\\=(\dfrac{9}{2}, \dfrac{13}{2})[/tex]

So, the coordinates of mid point of A and B is [tex](\dfrac{9}{2}, \dfrac{13}{2})[/tex].

Plz Hurry

Melanie buys a carrying case for her new laptop, which costs 125% as much as her old laptop case. The price of her new laptop carrying case is $65. If n represents the cost of her old laptop carrying case, which proportion can be used to find n?

A.(125/65)=(n/100)

B.(100/125)=(n/65)

C.(125/100)=(n/65)

D.(152/100)=(n/65)

Answers

Answer:

B

Step-by-step explanation:

HELP I WILL GIVE BRAINLIEST PLEASE HELP

Answers

square is 5.25
circle is 8.5

What is this number in standard form?

(3×100)+(1×110)+(4×11,000)

Answers

The Standard form of the number is 44,410.

What is Multiplication?

To multiply means to add a number to itself a particular number of times. Multiplication can be viewed as a process of repeated addition.

Here, given number

(3 X 100) + (1 X 110) + (4 X 11000)

(300) + (110) + (44000)

300 + 110 + 44000

410 + 44000

44410

Thus, the Standard form of the number is 44,410.

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Hi! Will give brainliest to who answers first!

Find the point that lies on the line described by the equation below.
y-3 = 3(x-9)
A. (9,3)
B. (3,9)
C. (9,-3)
D. (27,3)

Answers

Answer:

A

Step-by-step explanation:

3-3= 3(9-9)

0= 0

thanks

Answer:

(9, 3)

Step-by-step explanation:

Hi there!

I provided a graph of the function below to help.

If you take a quick look, the graph goes through point (9,3)

I hope this helps!

21. When h has the value 5,
calculate 6h + 7

Answers

Answer:

37

Step-by-step explanation:

Answer:

37

Step-by-step explanation:

6h + 7

6(5) + 7

30 + 7= 37

Calculate the areas of these rectangles

Answers

Answer:

The answer is below

Step-by-step explanation:

A rectangle is a quadrilateral (four sides) with two pairs of equal opposite and parallel sides. All the four angles in a rectangle are equal to 90° (right angle). The diagonals of a rectangle are equal and bisect each other.

The area of a rectangle = length * breadth

a) Area = length * breadth = 8 cm * 3 cm = 24 cm²

b)  Area = length * breadth = 5.2 cm * 7.7 cm = 40.04 cm²

What is the coefficient of the term -21xy

Answers

Answer:

-21

Step-by-step explanation:

In the term -21xy, -21 is the coefficient. It comes before the variables that are x and y.

Answer:

-21

Step-by-step explanation:

Definition of coefficient: The coefficient of a term is the number in the term.

To look for the coefficient in the term -21xy, simply eliminate the variables. We can clearly see that the coefficient of the term is -21.

Hence, the coefficient of the term -21xy is -21.

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