It is estimated that 29% of the earths surface isn’t covered by water what percentage of the earths surface is water-covered

Answers

Answer 1

Answer: 71%

Explanation:

100% - total earth surface

29% - earth surface uncovered by water

100 - 29 = 71% of surface covered by water


Related Questions

NEED HELP.... Tom is planning a trip to three different cities this summer. When looking at amap, Tom has drawn in two of the distances between these cities. Which of youranswer choices is the correct way to represent the potential range for how manymiles City B is away from City C?- 3

Answers

we have that

the distance city B to city C is equal to

405+401=806 miles4

therefore

the answer is

3 < x < 807 -----> because is a potential range (Its not exact)

Write an equation of the line passing through (4,-3) and perpendicular to x+3y=-15

Answers

The equation of line passing through(4,-3) and perpendicular to x+3y=-15 is y = 3x - 15.

How do you determine a line's equation?

Using the slope formula, determine the slope.

To find the y-intercept, use the slope and one of the points (b).

You can obtain the equation for a line by entering the values of m and b into the slope-intercept form of the line (y = mx + b).

Given,

coordinates = (4,-3)

equation of line = x+3y=-15

equation of line in standard form

⇒ y = -1/3x -5

Slope of line = -1/3

The slope of the line passing through (4,-3) and perpendicular to line x+3y=-15 is 3.

The equation of line becomes

(y + 3) = 3 (x - 4)

y + 3 = 3x - 12

y = 3x - 15

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A student claimed that 0.045 m and 0.0045 m have the same number of significant digits. Do you agree or disagree?
Agree
Disagree

Answers

agree

Explanation:
Agree because both measurements have 2 significant digits.

3^x-3^y=234,find the value of x and y​

Answers

Value of x =5 and value of y =2

The exponent of a number indicates how many times a number has been multiplied by itself. For instance, 3^4 indicates that we have multiplied 3 four times. Its full form is 3 3 3 3. Exponent is another name for a number's power. It could be an integer, a fraction, a negative integer, or a decimal. Exponents are necessary since, without them, it is highly challenging to express the product when a number is repeated several times by itself. For instance, it is much simpler to write 5^7 than it is to write 5 5 5 5 5 5.

[tex]3^{x}-3^{y}=234\\ 3^{x-y}.3^{y}-3^{y}=234\\ 3^{y}(3^{x-y}-1)=234\\ 3^{y}(3^{x-y}-1)=3^{2}.26\\[/tex]

Now, by comparison, we get:

[tex]3^{y}=3^{2}\\ y=2\\ Also, \\3^{x-y} -1=26\\ 3^{x-y}=27\\ 3^{x-y}=3^{3}\\ x-y=3\\ x-2=3\\x=5[/tex]

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Write the equation of the line described.
through
(−1, 2)
and perpendicular to
5x + 3y = 15

Answers

Answer:

[tex]y = \frac{3}{5} x + \frac{13}{5} [/tex]

Step-by-step explanation:

The equation of a line can be written in the slope-intercept form y= mx +c, where m is the slope and c is the y-intercept.

Let's rewrite the given equation into the slope-intercept form, so that we can identify its slope.

5x +3y= 15

3y= -5x +15

Divide both sides by 3:

[tex]y = - \frac{ 5}{3} x + 5[/tex]

Thus, the slope of the given line is [tex] - \frac{5}{3} [/tex]

The slope of a perpendicular line is the negative reciprocal of the given line. In simpler terms, the slope of the perpendicular line can be found by flipping the denominator and numerator, and by multiplying -1 afterwards.

Slope of perpendicular line= [tex] \frac{3}{5} [/tex]

Substitute the value of the slope into the equation:

[tex]y = \frac{3}{5} x + c[/tex]

To find the value of c, substitute a pair of coordinates the line passes through.

When x= -1, y= 2,

[tex]2 = \frac{3}{5} ( - 1) + c[/tex]

Solve for c:

[tex]c = 2 + \frac{3}{5} [/tex]

[tex]c = \frac{13}{5} [/tex]

Thus, the equation of the line described is [tex]y = \frac{3}{5} x + \frac{13}{5} [/tex].

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write an equation of the line that passes the through point (0, 9) and has slope m=2/3

Answers

An equation of the line that passes the through point (0, 9) and has slope m = [tex]\frac{2}{3}[/tex] is 3y-2x-27=0

What is point-slop equation of a line?

The point-slope equation of a line is

                      y - [tex]y_{1}[/tex] = m ( x  -[tex]x_{1}[/tex] )

The equation is useful when we know:

one point on the line: (      [tex]x_{1}[/tex],[tex]y_{1}[/tex]) andthe slope of the line: m,

and want to find other points on the line.

Given that,

slope , m =  [tex]\frac{2}{3}[/tex]  and passing through the point is (0,9)

An equation of a line given the slope and a point is

             y - [tex]y_{1}[/tex] = m ( x  -[tex]x_{1}[/tex] )

or          y - 9 =  [tex]\frac{2}{3}[/tex] (x - 0)

or          y - 9 =  [tex]\frac{2}{3}[/tex] x

or          y =  [tex]\frac{2}{3}[/tex] x + 9

or          y = [tex]\frac{2x + 27}{3}[/tex]

or          3y = 2x + 27

or         3y - 2x - 27 = 0

Hence, an equation of the line that passes the through point (0, 9) and has slope m = [tex]\frac{2}{3}[/tex] is 3y-2x-27=0

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A large pepperoni pizza from Papa Johns costs $14.75. After tax, the pizza is $15.93. What is the sales tax rate?

Answers

Answer:

8%

Step-by-step explanation:

divide the after tax price by the before tax price

15.93/14.75=1.08

then subtract 1 from 1.08 (the 1 is the base price of the pizza) and convert the difference to percent to get the answer of 8% tax rate

Help PLEASE thats the question if you have the answer type below​

Answers

The equation that represent the data in the table shown is y = -2x + 3.

How to know if the system is linear?

Linear systems are sets of equations associated with each other and that have two or more variables. In linear systems, only linear equations are entered, that is, expressions where the greatest exponent of the unknowns is equal to 1.

A linear equation is in the form:

y = mx + b

Where:

m is the slope b is the y intercept

From the table, using the point (0, 3) and (1, 1):

y - 3 = [(1 - 3)/(1 - 0)](x - 0)

y - 3 = -2xy = -2x + 3

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help me

look at the picture ​

Answers

The zeros of the quadratic are (1 and 3), the vertex is (2, -1). Draw the parabola with a "solid" line. Shade the "interior" of the parabola.

What is defined as the inequality?Inequalities are mathematical representations in which neither side is equal. Unlike equations, we consider the two values in inequality.When inequalities are connected together, it is possible to jump so over middle inequality.If, p < q and q < d, then p < dIf, p > q and q > d, then p > d

For the given question;

The inequality of the function is given as;

= x² - 4x + 3

Find the factors;

(x - 3)(x - 1) = 0

x = 1 and x = 3 are the zeros of the equation.

Now, to graph the equation find the point;

Put x = 0; y = 3

Put x = 1; y = 0

Put x = 2, y = -1

Plot the points on the graph and join the points with solid line.

The vertex of the parabola is found at (2, -1).

Thus, the graph of the parabola is plotted.

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Match the vocab word with the definition:

Question 1 options:

Order of Operations


Operator


Equation


Constant


Numerical Expression


Exponent (Power)


Evaluate


Variable Expression


Variable


Open Sentence


Term


Coefficient


Grouping Symbol


Inequality

1.
Devices, such as parentheses, brackets, and fraction bars, used to set apart an expression that should be simplified before other operations are performed
2.
An expression that consists of numbers, operations, and sometimes grouping symbol.

3.
The order in which operations must be computed when more than one operation is involve.

4.
A number representing how many times the base number should be multiplied by itself.

5.
A Symbol that represents a value that can change.

6.
A single number or variable, or numbers and variables multiplied together.

7.
The numerical factor in a term. A number being multiplied by a variable.

8.
A number on its own, it has a fixed value.

9.
A combination of variables, numbers, and operations.

10.
You replace, or substitute, all the variables with numbers and then simplify.

11.
A statement that the values of two math expressions are equal (indicated by the sign =).

12.
The relation between two expressions that are not equal, employing a sign such as ≠ “not equal to,” > “greater than,” or < “less than.”.

13.
The symbol of a math operation.

plus, minus, times, divided by, equals

14.
An equation or inequality containing one or more variable.

Answers

Answer:

1 : Grouping Symbol

2 : Operator

3 : Order of Operations

4 : Exponent

5 : Variable

6 : Term

7 : Coefficient

8 : Constant

9 : Numerical Expression

10 : Variable Expression

11 : Equation

12 : Inequality

13 : Evaluate

14 : Open Sentence

Evaluate the following function for the given value.

f(x)=-x-2; find f(-7).

Answers

Answer: f(-7)=-9

Step-by-step explanation:

Find the quotient of (+22)÷(+2)​

Answers

The answer is 11, the parentheses and + do not matter in this problem
answer to the question is 11 (+22)/(+2)

a. 161b.16c. -16116d.e.5

Answers

64 ^ (-2/3)

Rewrite 64 as 4^3

(4^3) ^ (-2/3)

Using the power rule a^b^c = a^(b*c)

4 ^(3*-2/3)

4^ -2

We know that a^ -b = 1/ a^b

1 / 4^2

1/16

f(x)=4x^4−19x^3−10x^2+35x−50 and g(x)=x−5, find (f/g)(x) and (f/g)(1)

Answers

Answer:

(f/g)(x) = 4x^3 +x^2 -5x +10(f/g)(1) = 10

Step-by-step explanation:

You want to find the rational function (f/g)(x) and its value for x=1 when f(x) = 4x^4−19x^3−10x^2+35x−50 and g(x) = x-5.

Polynomial division

The ratio function is the ratio of the given functions, found by dividing f(x) by g(x). Since g(x) is a binomial with a leading coefficient of 1, synthetic division is recommended. The attachment shows the result.

  [tex](f/g)(x)=\dfrac{f(x)}{g(x)}=\dfrac{4x^4-19x^3-10x^2+35x-50}{x-5}\\\\\boxed{(f/g)(x)=4x^3+x^2-5x+10}[/tex]

The value of this function when x=1 is ...

  (f/g)(1) = 4·1³ +1² -5·1 +10 = 4 +1 -5 +10

  (f/g)(1) = 10

There are 12 F/A-18 aircraft, where: 3 are F/A-18A's 4 are F/A-18E's 5 are F/A-18F's If three of these twelve aircraft are selected at random, so that every possible selection is equally likely, what is the probability that all three of them will be F/A-18E's, rounded to two decimal places?

Answers

When three of these twelve aircraft are selected at random, the probability that all three of them will be F/A-18E's is 0.018.

How to calculate the probability?

Based on the information given, there are are 12 F/A-18 aircraft, where: 3 are F/A-18A's 4 are F/A-18E's 5 are F/A-18F's. The total number of aircraft will be 12.

When three of these twelve aircraft are selected at random, so that every possible selection is equally likely, the probability that all three of them will be F/A-18E's will be:

= 4/12 × 3/11 × 2/10

It should be noted that this is without replacement that's why we have 10, 11 and 12 as the denominator.

= 4/12 × 3/11 × 2/10

= 1/3 × 3/11 × 1/5

= 3 /165

= 0.018

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Examine angle ABC below.
Which of the following equations correctly represent the relationships between the segments?
A) AG= 2GD
B) GC= 1/2FG
C) BE= 2BG
D) GA= 1/2AD

Answers

Answer:

A

Step-by-step explanation:

The centroid cuts the median in a 2:1 ratio from vertex to side.

what is the geometric mean of 14 and 6 (just need answer)

Answers

9.16

1) Considering 14, and 6 the data. Let's calculate the Geometric Mean of it

[tex]X_G=\sqrt[]{14\cdot6}\Rightarrow X_G\approx9.16[/tex]

2) To do that we just need to multiply those numbers, and since there are two of them take the square root of that product, between those 2 numbers

3) So the Geometric mean is 9.16 (approximately).

what is 40 divided by 50

Answers

Answer:

See below

Step-by-step explanation:

40 ÷ 50 =   40/50 = 4/5 = .8  

What is the sum of all the numbers less than 496 that divide evenly into 496?

Answers

Based on the numbers that are all less than 496 and yet divide evenly into 496, the sum is 496

How to find the sum?

The numbers that are less than 496 and yet are able to divide evenly into it are known as the factors of 496. These numbers will not leave a reminder when they divide 496.

The factors of 496 include:

1, 2, 4, 8, 16, 31, 62, 124, 248, 496.

The sum of these numbers that are less than 496 is:

= 1 + 2 + 4 + 8 + 16 + 31 + 62 + 124 + 248

= 496

In conclusion, the sum of all the numbers less than 496 that are able to divide it evenly is 496.

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−8+n3=6, what does the n equal?

Answers

Answer:

n=2.4

Step-by-step explanation:

The value of n is ∛14.

What is Equation?

An equation is a mathematical statement that asserts the equality of two expressions. It consists of two sides, known as the left-hand side (LHS) and the right-hand side (RHS), connected by an equal sign (=).

To solve the equation −8 + n³= 6

Add 8 to both sides of the equation to isolate the term with n:

−8 + n³ + 8 = 6 + 8.

Simplifying the equation gives: n³ = 14.

Take the cube root of both sides to solve for n.

Taking the cube root of n³ = 14

∛(n^3) = ∛14.

Therefore, n = ∛14.

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HELP! ALgebra 2!

A rectangular swimming pool is twice as long as it is wide. The pool has an area of 450 feet. What are the dimensions of the pool?

Answers

Answer: The pool is 30 feet by 15 feet

======================================================

Explanation:

x = width

2x = length, since it is twice as long as it is wide

area = length*width = 2x*x = 2x^2

Set this equal to the area of 450 sq ft and solve for x

2x^2 = 450

x^2 = 450/2

x^2 = 225

x = sqrt(225)

x = 15 feet is the width

2x = 2*15 = 30 feet is the length

Check:

area = length*width = 30*15 = 450

The answers are confirmed.

help me!!! Write an equation of the line passing through the point (2, 8) that is perpendicular to the line 2x - 3y = 7

Answers

Answer:

y = -3/2x +11

Step-by-step explanation:

First you have to change the equation from standard form to slope form.

y = mx + b

2x-3y=7 --> subtract 2x from both sides

-3y = -2x + 7 --> now divide both sides by -3 to get y by itself

y = 2/3x - 7/3  --> the reason 2/3x is positive is because when there are two negatives it turns to a positive.

now you have to use point slope form y - y1 = m (x - x1)

x1 and y1 would be your point. 2 is x1 and 8 is y1

y - 8 = -3/2 (x - 2) --> the reason that m is -3/2 is because a perpendicular equation is the opposite reciprocal of the original slope

next distribute the -3/2

y-8 = -3/2x + 3 --> and now add 8 to 3 to get why by it self

now you have y = -3/2x + 11

1b. Below is a graph of the equation x + y = 500. Change it so that itrepresents solutions to the inequality representing this situation. Statewhat line you will use (dashed or solid line) and which side you will shade(A or B). **

Answers

Given:

The equation of the graph is x + y = 500.

The objective is to change the equation as inequality and to choose the correct region for shading.

Explanation:

As the equation is given as x + y = 500, the sum of the values of x and y lies within the 500. As its total sum is also equal to 500, the graph must lie with in the maximum range of 500 that is at A along with solid line. (If sum is not equal to 500, the graph will contain dotted line).

Representation of inequality:

The given equation can be represented in the form of inequality as,

[tex]x+y\le500[/tex]

Graph:

Then, the graph of the inequality will be,

Hence, the inequality is x + y ≤ 500 and the graph contains solid line with shaded region in A.

3. Disney on Ice is traveling to Chicago to perform. The revenue from their ticketsales is a function of the ticket price, x, and can be modeled with (x - 8)(450 – 3x).What are the ticket prices at which Disney on Ice would make no money at all?Type Here: They would earn no money when the function is equal oExplain or show your reasoning.Type Here: (x-3)(450-3x) = 0

Answers

the price of the ticket which Disney on ice would make no money at all is:

[tex](x-8)(450-3x)=0[/tex]

and here, are two posible solutions:

[tex]\begin{gathered} 1)x-8=0 \\ 2)450-3x=0 \end{gathered}[/tex]

for the first one 1)

[tex]x=8[/tex]

for the second one 2)

[tex]\begin{gathered} 450=3x \\ \frac{450}{3}=x \\ 150=x \end{gathered}[/tex]

and in this problem the realistic answer is the first one, so the solution is $8 dollars

Please help I’ll mark you as brainliest if correct !!

Answers

47 had a finished basement with 0 three-car garage .

What is reasoning ?

Thinking and cognition are related to reasoning, which requires using one's intellect. The study of logic focuses on how people can construct logically sound arguments using formal reasoning. Deductive, inductive, and abductive reasoning are three examples of logical reasoning that can be used to further break down reasoning. Aristotle distinguished between logical discursive reasoning (reason proper) and intuitive reasoning, noting that the former may lean toward the subjective and the personal, despite being correct. While logical and intuitive styles of reasoning might clash in certain social and political circumstances, in others they are considered as complimentary rather than competitive.

Calculation

all the values are given that how many houses had a finished basement with no 3-car garage.

the no. of houses are = 47 .

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what is the percent value of 5/8

Answers

5/8 as a percent is 67.5%

Answer: The correct answer is 62.5% and not 67.5 %

Step-by-step explanation: Yes you do 5 divided by 8 and then you move the decimal point two places to the right.

Hope this helped!!!!

The distance between 4 7/10 and -8 9/10

Answers

Answer: 68/5

Hope this helps! :)

Adam has 18 counters.
He gives 10 of the counters to Lesley.
a) What fraction of the 18 counters does Lesley get?
Give your answer in its simplest form.
b) What fraction of the 18 counters does Adam have now?
Give your answer in its simplest form.

Answers

The fraction of counters Lesley get if Adam gives 10 counters out of 18 counters is 5/9.

The fraction of counters Adam have now is 4/9.

Fraction

This is an expression which consists of a numerator and a denominator

A numerator is the upper of top value of a fraction

A denominator is the lower or bottom value of a fraction

Number of counters Adam has = 18Number of counters Adam gave to Lesley = 10

Number of counters Adam has left = Number of counters Adam has - Number of counters Adam gave to Lesley

= 18 - 10

= 8

Fraction of the 18 counters Lesley get = Number of counters Adam gave to Lesley / Number of counters Adam has

= 10/18

= 5/9

Fraction of the 18 counters Adam have now = Number of counters Adam has left / Number of counters Adam has

= 8 / 18

= 4/9

In conclusion, the fraction of counters Adam have now after giving out 10 counters to Lesley is 4/9

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The revenue for selling x units of a product is R = 113.95 x. The cost of producing x units is C = 93 x + 750. In order to obtain a profit, the revenue must be greater than the cost. For what values of x will this product produce a profit? (Enter a number. Round your answer up to the nearest whole unit.)

Answers

For profit with the revenue of R=113.95x and cost of C=93x + 750 the value of x is 36units.

As given in the question,

Revenue for selling x units of a product is R = 113.95 x

Cost of producing x units is C = 93 x + 750

For profit, the revenue must be greater than the cost.

R > C

113.95x > 93x +750

Subtract 93x from both the sides

113.95x -93x >93x-93x +750

⇒20.95x > 750

Divide by 20.95

⇒x > 750/20.95

⇒x>35.7995

Nearest whole number is 36.

Value of x to produce a profit is 36units

Therefore, to make a profit with the revenue of R=113.95x and cost of

C =93x + 750 the value of x is 36units.

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Find a formula for the nth term in this
arithmetic sequence:
a1 = 7, a2 = 4, a3 = 1, a4 = -2, ...
an

Answers

Answer:

  an = 7 -3(n -1)

Step-by-step explanation:

You want the formula for the n-th term of the arithmetic sequence 7, 4, 1, -2, ....

Arithmetic sequence

An arithmetic sequence has a first term (a1) and a common difference (d) found by subtracting the previous term from the current term.

In the given sequence, the first term is a1=7, and the common difference is d=(a2 -a1) = 4 -7 = -3.

The n-th term of the given arithmetic sequence is ...

  [tex]a_n=a_1+d(n-1)\\\\\boxed{a_n=7-3(n-1)}[/tex]

__

Additional comment

The formula can be simplified to ...

  an = 10 -3n

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