7) -5x +6y = 16
3x - 7y = 4
A) (4, -2)
C) (-8,-4)
B) (4,2)
D) (2,-4)

Answer:

hypotenuse

Step-by-step explanation:

Answer:

I believe it is D hypotenuse

Step-by-step explanation:

In geometry, a hypotenuse is the longest side of a right-angled triangle.

Answer: $1.83

Step-by-step explanation:

1. Solve this problem: 1+2+4+6+8+10+12+14+16+18+20+22+24+26. There are 15 numbers for 15 days. You want to solve this because each day is doubled. For example: first day is 1 cent, second day is 2 cents, third day is 4 cents, and so on.

2. Answer is 183 cents.

3. Convert 183 cents to dollars.

4. Your answer is $1.83.

Hope it helps!

Answer:

$1.83.

You start with one cent, and add two more cents after that day.

Answer:

  0, 0.9, 2, √5, 47/14

Step-by-step explanation:

Your calculator can help you round these to 1 decimal place:

  √5 ≈ 2.2

  47/14 ≈ 3.4

Then the order in decimal is ...

  0, 0.9, 2, 2.2, 3.4

In the original form, the order is ...

  0, 0.9, 2, √5, 47/14

_____

Additional comment

When comparing numbers in decimal, the most-significant digits are compared first. The one in the left-most number place is the greatest. If both are in the same number place, then the highest digit is the greatest. if both are the same, then comparison proceeds to consider the digits in the number place to the immediate right.

Here, the most-significant digits of 0, 2, 2.2 and 3.4 are in the units place, so 3 identifies the largest value. Of the remaining, 2.0 and 2.2 have units digits of 2, so we must look at the tenths digit to determine 2.2 > 2.0. Now, we have 3.4 > 2.2 > 2.

The numbers 0.0 and 0.9 both have units digits of 0, so we look at the tenths place to see that 0.9 > 0.0. This puts the numbers in order ...

  3.4 > 2.2 > 2 > 0.9 > 0 . . . . . greatest to least

The order we're interested in is the reverse of this order, least to greatest.

(-2, 10].

First of all, let's refresh the concepts of domain and range when talking about mathematical functions.

In simple terms, the domain of a function are the values that the function can work with, the allowed inputs, which happen to be the same as values of the common used variable "x", the dependent variable. We can easily tell the domain of a by looking at its horizontal extension, what values of "x" it passes by.

Now, the domain is the total opposite, those are the outputs, or the "y" values that the function returns after evualiating an "x" value. These can be seen by analyzing the vertical extension of the graph, what values of "y" the function can reach.

In the given graph, we may see that the lowest "y" value the graph outputs (vertically) is -2, and we also see that the circle in that number doesn't have a fill color, it's transparent, that means that tne function doesn't contain the value of -2. Therefore, y > -2. Now, on the upper end of the function, we can see that highest "y" value the function can reach is 10, marked with a filled circle, which means that the function contains said value, hence, y ≤ 10.

Now, writting in interval notation, remember that the square brackets "[]" are meant to be used next to a value that the function contains. Also, the parentheses "()" are meant to a value that the function doesn't contain.

Previously, we mentioned that the function doesn't contain value "-2", therefore, we may write:

(-2...

Now, to finish writting the interval, we mentiones that value 10 is contained in the function, hence, we finish writting the interval notation as follows:

(-2, 10].

Final answer: (-2, 10].

When writting in interval notaion, the symbol of infinity "∞" must always be written next to a parenthesis symbol.

Profitability ratios is a type of financial ratio shows the combined effects of liquidity, asset management and debt management of a business. So the statement is true.

Financial ratios are calculations used to assess various data to evaluate the company's performance. It is calculated using quantitative data from financial statements. There are mainly four financial ratios

So the statement given is true.

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Answer:

3

Step-by-step explanation:

Answer:

3

Step-by-step explanation:

Answer:

no!!

Step-by-step explanation:

because AB is longer than BC

Answer:

No, because AB is longer than BC

Step-by-step explanation:

Khan Academy

The formula for the compound interest is,

Determine the value for A = 14600, P = 7300 and t = 14 years.

Determine the amount after 15 years.

So amount of money after 15 years is 15341.

Answer:

x = 2.4

Step-by-step explanation:

4x + 5 / x + 7
combine like terms

X + 4x = 5x

5 + 7= 12

12/ 5x

Divide

12 /5= 2.4

X= 2.4

Answer:

x = 10

Step-by-step explanation:

Answer:

i got the answer 10

x-8/6 =1/3

or, x-8 = 6/3

or, x=8+2 =10

Answer: 64% of the variability in weight can be explained by the relationship with height.

Step-by-step explanation:

Here, r= 0.80

\(\Rightarrow\ r^2= (0.80)^2=0.64\)

That means 64% of the variability in weight can be explained by the relationship with height.

The variability in weight is 64 % , explained by the relationship with height.

Correlation coefficients are always values between -1 and 1, where -1 shows a perfect, linear negative correlation, and 1 shows a perfect, linear positive correlation.

The correlation coefficient is measure the strength of the linear relationship between two variables in a correlation analysis.

Correlation coefficient is represented by r.

Given that, the correlation between height and weight for adults is 0.80.

                   \(r=0.8\)

The variability in weight is, = \(r^{2}=(0.8)^{2} =0.64\)

Thus, the variability in weight is 64 % , explained by the relationship with height.

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The simplified form of √([2m5z6]/[xy]) is (√2m√5z√6) / (√x√y).

To simplify the expression √([2m5z6]/[xy]), we can break it down step by step:

Simplify the numerator:

√(2m5z6) = √(2) * √(m) * √(5) * √(z) * √(6)

= √2m√5z√6

Simplify the denominator:

√(xy) = √(x) * √(y)

Combine the numerator and denominator:

√([2m5z6]/[xy]) = (√2m√5z√6) / (√x√y)

Thus, the simplified form of √([2m5z6]/[xy]) is (√2m√5z√6) / (√x√y).

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Answer:

45 :)

Step-by-step explanation:

Answer:

17 $

Step-by-step explanation:

let y  - total cost of a gift

x - price of the gift

the total cost of the gift is its price + 14% delivery, which can be written as:

y = x + 14% * x = x + 0.14x = 1.14 x

by making the substitution with the data from the task

19.38 = 1.14*x

x = 19.38/1.14 = 17

Answer:

coefficient..........

The equation y = 2x - 6 is a line in the form known as Slope-Intercept Form. This form organizes the equation so that you can easily discern the y-intercept and slope.

Slope-intercept form is y = mx + b. So here, m = 2, b = -6.

Answer:

???????

Which option?

Edit it

Answer:

3, 2√2, √7

Step-by-step explanation:

compute the square roots of the next three prime numbers:

√7

√11

√13

Therefore, the next three terms of the sequence are:

{1, √2, √3, 2, √5, √7, √11, √13}

chatgpt

chat

The equation of the line that is perpendicular to the line passing through (-4,4) and (4,-2) and has an x-intercept of 6 is: y = (4/3)x - 8.

What is slope  ?

Slope is a measure of the steepness or slant of a line. It is defined as the ratio of the vertical change between two points on a line to the horizontal change between those same two points. In other words, slope is the change in y divided by the change in x.

The slope of a line can be positive, negative, zero, or undefined. A positive slope means that the line is rising from left to right, while a negative slope means that the line is falling from left to right. A slope of zero means that the line is horizontal, while an undefined slope means that the line is vertical.

The slope-intercept form of a linear equation is y = mx + b, where m is the slope and b is the y-intercept (the point where the line crosses the y-axis).

According to the question:
First, we need to find the slope of the line passing through (-4,4) and (4,-2) using the formula:

slope = (y2 - y1) / (x2 - x1)

where (x1, y1) = (-4,4) and (x2, y2) = (4,-2)

slope = (-2 - 4) / (4 - (-4)) = -6/8 = -3/4

The equation of a line perpendicular to this line will have a slope that is the negative reciprocal of the slope of the given line. That is,

slope of perpendicular line = -1 / (-3/4) = 4/3

Now we can use the slope-intercept form of a line to find the equation of the line with slope 4/3 that passes through the point (6,0), which is the x-intercept given in the question:

y = mx + b, where m is the slope and b is the y-intercept

Plugging in m = 4/3 and the point (6,0), we get:

0 = (4/3)(6) + b

b = -8

Therefore, the equation of the line that is perpendicular to the line passing through (-4,4) and (4,-2) and has an x-intercept of 6 is:

y = (4/3)x - 8

So the answer is: y = (4/3)x - 8.

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Approximately 99.7% of scores lie in the shaded region.

We have,

The empirical rule, also known as the 68-95-99.7 rule, provides an estimate of the percentage of scores that lie within a certain number of standard deviations from the mean in a normal distribution.

According to this rule:

Approximately 68% of scores lie within 1 standard deviation of the mean.

Approximately 95% of scores lie within 2 standard deviations of the mean.

Approximately 99.7% of scores lie within 3 standard deviations of the mean.

Now,

In the given scenario, the shaded region represents the area between -2 and 3 standard deviations from the mean on the x-axis.

This encompasses the area within 3 standard deviations of the mean.

And,

Since 99.7% of scores lie within 3 standard deviations of the mean, we can estimate that approximately 99.7% of scores lie in the shaded region.

Therefore,

Approximately 99.7% of scores lie in the shaded region.

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The correct answer is option (b) The vertical distance between the point at -7 feet and sea level (0 feet)

What is elevation?

The elevation is the height of an object or point above a given reference point, usually sea level. It is often used to describe the height or altitude of a geographic location, such as a mountain peak or a city, and is commonly measured in feet or meters.

In the context of elevation, | -7 | feet would mean the vertical distance between the point at -7 feet and sea level (0 feet).

The vertical distance between two points is calculated by taking the absolute value of the difference between their elevations. So, in this case, the absolute value of -7 is 7, which means the point is 7 feet below sea level.

The correct answer is option (b) The vertical distance between the point at -7 feet and sea level (0 feet).

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It would take approximately 17.12 years for the amount to reach Birr 56,398.43 with a deposit of Birr 500 at the end of each six-month period, compounded semi-annually at an interest rate of 6%.

To solve this problem, we can use the formula for compound interest:

A = P(1 + r/n)^(nt)

Where:

A = Final amount

P = Principal amount (initial deposit)

r = Annual interest rate (in decimal form)

n = Number of compounding periods per year

t = Number of years

In this case, the principal amount is Birr 500, the annual interest rate is 6% (or 0.06), and the interest is compounded semi-annually, so there are 2 compounding periods per year.

We need to find the number of years (t) it takes for the amount to reach Birr 56,398.43.

Let's substitute the given values into the formula and solve for t:

56,398.43 = 500(1 + 0.06/2)^(2t)

Divide both sides by 500:

112.79686 = (1 + 0.03)^(2t)

Take the natural logarithm of both sides to eliminate the exponent:

ln(112.79686) = ln(1.03)^(2t)

Using the property of logarithms, we can bring down the exponent:

ln(112.79686) = 2t * ln(1.03)

Now, divide both sides by 2 * ln(1.03):

t = ln(112.79686) / (2 * ln(1.03))

Using a calculator, we find t ≈ 17.12.

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Step-by-step explanation:

la respuesta no es correcta porque es falsa

If John solved the equation x² - 10x + 8 = 0 by completing the square, one of the steps in his process would be: A. (x - 5)² = 17.

In Mathematics, the standard form of a quadratic equation is represented by the following equation;

ax² + bx + c = 0

Next, we would solve the given quadratic equation by using the completing the square method;

x² - 10x + 8 = 0

x² - 10x = -8

In order to complete the square, we would have to add (half the coefficient of the x-term)² to both sides of the quadratic equation as follows:

x² - 10x + (-10/2)² = 8 + (-10/2)²

x² - 10x + 25 = -8 + 25

x² - 10x + 25 = 17

By simplifying, we have;

(x - 5)² = 17

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Based on the supply graph and demand graph shown above, the price at the point of equilibrium is $ 30.

Demand refers to quantity of a commodity that the consumers are willing to, able to purchase at a given price during a given period of time. Supply refers to quantity of a commodity that the producers are willing to, able to offer for sale at a given price during a given period of time.

Demand curve slopes downward due to inverse relationship between price and quantity demanded whereas supply curve slopes upward due to direct relationship between quantity supplied and price. When both demand and supply curve intersect with each other balance is achieved. Intersection point between demand and supply curve is known as equilibrium.

At this point when prices are equal is known as equilibrium price and when quantiy demanded or supplied are equal it is known as equilibrium quantity. When we combine the given graph. Equilibrium is achieved at a point when price is equal to $ 30 and quantity is equal to 20 units.

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Answer:

what is this ?!?!?!?!

Step-by-step explanation:

btw can u be more specific so i can properly help u

Answer:

$918.75

Step-by-step explanation:

2.5 ÷ 100 = 0.025 × 1050 = 26.25

26.25 × 5 = 131.25

1050 - 131.25 = 918.75

Answer:

2

Step-by-step explanation: