x/6 - 7 = -4 helpppppppp

Answer:

Thus, the equation of line for point (-1, 2)  is y = x + 3.

Step-by-step explanation:

Answer:

The equation of the line is y = x + 3.

Step-by-step explanation:

A line that is parallel to y=x+4 and passes through the point (-1,2) will have the same slope as y=x+4. The slope of y=x+4 is 1, so the equation of the line will be in the form y = mx + b, where m=1. To find b, we can plug in x = -1 and y = 2 into the equation and solve for b.

y = mx + b

y = 1 * -1 + b

y = -1 + b

b = y + 1

b = 2 + 1

b = 3

Answer:

yo soy de

Step-by-step explanation:

According to the given data the length of a \(90^{0}\) arc is \(\pi /2\) or approximately \(1.57\) feet.

In geometry, the length of an arc is the distance along the curved line that makes up the arc. It is a measure of the "length" of a portion of a circle's circumference, and it is usually expressed in the same units as the circle's radius.

According to the given information:

The length of a \(90^{0}\) arc in a circle with radius \(1\) foot can be calculated using the formula:

Length of arc = (angle/\(360\)) x \(2\pi r\)

where angle is the central angle of the arc in degrees, r is the radius of the circle, and \(\pi\) is a mathematical constant approximately equal to \(3.14159\).

Substituting the given values, we have:

Length of arc = (\(90/360\)) x \(2\pi(1 ft)\)

Length of arc = \((1/4)\) x \(2\pi ft\)

Length of arc = \(\pi /2 ft\)

Therefore, the length of the \(90^{0}\) arc is \(\pi /2 feet\) or approximately \(1.57 feet\)

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the length of the 90° arc is π/4 feet or approximately 0.785 feet

What is arc of circle?

In geometry, an arc of a circle is a portion of the circle's circumference. It is defined by two endpoints and all points along the circle between those endpoints. The measure of an arc is typically given in degrees or radians and can be used to calculate various properties of the circle, such as its length, area, and sector angles.

The formula for the length of an arc is:

L = (θ/360) × 2πr

where L is the length of the arc, θ is the central angle of the arc in degrees, and r is the radius of the circle.

In this case, θ = 90° and r = 1 ft, so we have:

L = (90/360) × 2π(1) = (1/4) × π = π/4

Therefore, the length of the 90° arc is π/4 feet or approximately 0.785 feet (rounded to 3 decimal places).

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Ss, variance and the standard deviation for the population of scores is 2.83 and 8 respectively

What is standard deviation and variance?

Standard deviation is a measure of the distribution of statistical data, whereas variance is a measure of how data points differ from the mean. The fundamental distinction between the two is that although the variance is expressed in squared units, the standard deviation is expressed in the same units as the data's mean.

Given,

SS = 40

Variance = 10

Standard Deviation = 3.16

Using Population Variance Formula :

= \(\frac{1}{n}\)∑( x-xbar)²  where i is 1

For the complete solution see the attachment of table

sum ( x - x bar)² = 40

so, variance = 40/5

= 8

standard deviation = \(\sqrt{8}\)

= 2.83

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The exact solutions of the Quadratic equation x^2 - 3x - 5 = 0 are:

x = (3 + √29) / 2 ,x = (3 - √29) / 2. The correct answer choice is:

x = the quantity of 3 plus or minus the square root of 29 all over 2.

The exact solutions of the quadratic equation x^2 - 3x - 5 = 0 using the quadratic formula, we can identify the values of a, b, and c, and substitute them into the formula:

a = 1

b = -3

c = -5

Now, we can apply the quadratic formula:

x = (-b ± √(b^2 - 4ac)) / (2a)

Substituting the values into the formula:

x = (-(−3) ± √((−3)^2 - 4(1)(−5))) / (2(1))

x = (3 ± √(9 + 20)) / 2

x = (3 ± √29) / 2

Therefore, the exact solutions of the quadratic equation x^2 - 3x - 5 = 0 are:

x = (3 + √29) / 2

x = (3 - √29) / 2

The correct answer choice is:

x = the quantity of 3 plus or minus the square root of 29 all over 2.

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The values of the expression are,

⇒ x₂ = - 9.4

⇒ x₃ = - 9.4 - (e³⁸ + 38 + 1) / (2e³⁸ + 2)

Given that;

Expression is,

e²ˣ = - 2x - 1

Hence, Function is,

⇒ f (x) = e²ˣ + 2x + 1 = 0

⇒ f' (x) = 2e²ˣ + 2

Now, By newton's method;

⇒ x (n + 1) = x (n) - f (x (n)) / f' (x(n))

⇒ x₂ = x₁ - f (x₁) / f' (x₁)

⇒ x₂ = - 5 - (e¹⁰ + 10 + 1)/(2e¹⁰ + 2)

⇒ x₂ = - 5 - (e¹⁰ + 11)/(2e¹⁰ + 2)

⇒ x₂ = - 5 (2.6 + 11) / ( 2 x 2.6 + 2)

⇒ x₂ = - 68 / 7.2

⇒ x₂ = - 9.4

⇒ x (n + 1) = x (n) - f (x (n)) / f' (x(n))

⇒ x₃ = x₂ - f (x₂) / f' (x₂)

⇒ x₃ = - 9.4 - (e³⁸ + 38 + 1) / (2e³⁸ + 2)

Thus, The values of the expression are,

⇒ x₂ = - 9.4

⇒ x₃ = - 9.4 - (e³⁸ + 38 + 1) / (2e³⁸ + 2)

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Answer:

A

Step-by-step explanation: I believe it's A because It's the opposite but I'm not 100% certain, because I don't remember inverse statements.

Answer:

r=ln3/10

Step-by-step explanation:

The daily rate is given by 3 to the power x divided by 10.

We have given that a sample of bacteria is growing at a continuously compounding rate.

The sample triples in 10 days.

The daily rate of the bacteria growth is. exponential growth is in the form

y = abˣ

where y, x are variables.

a is the initial value

Sample triples, in 10 days. therefore the value of b=3.

Therefore we get,

\(y=3a^{\frac{x}{10}\)

\(y=a3^{\frac{x}{10}\)

Therefore the daily rate is given by \(3^{\frac{x}{10}\).

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Step-by-step explanation:

here is your answer and marking me as brainlist

thank you

Answer 53/36

Step-by-step explanation:

If you want it in exact form it's 53/36

If you want it in mixed number form it's 1 17/36

If you want it in decimal form it's 1.472

Answer:

Hence the answer is TRUE.

Step-by-step explanation:

If event A is taking 15 or more minutes to urge to figure tomorrow and event B is taking but a quarter-hour to urge to figure tomorrow, then events A and B must be complimentary events. this is often because the occurring of 1 is going to be precisely the opposite of the occurring of the opposite event and that they cannot occur simultaneously. In other words, events A and B are mutually exclusive and exhaustive.  

Mathematically,  

P(A) + P(B) = 1.

Answer:

66.6666

Step-by-step explanation

This is the answer because I found it up here and I got the answer right.

Answer:

5/3  1/3  4/3

Step-by-step explanation:

Answer:

90081???

Step-by-step explanation:

Answer:

90

Step-by-step explanation:

60 % = .60 in decimal

.60 (150) = 90

Answer:

  25 yards long, 5 yards wide

Step-by-step explanation:

The given parameters can be used with the area and perimeter formulas for a rectangle to form an equation that can be solved for the dimensions.

The length and width can be represented by x and y. The formulas for area and perimeter give two equations relating these two variables:

  A = LW   ⇒   125 = xy

  P = 2(L+W)   ⇒ 60 = 2(x +y)

Using the second equation to write an expression for y, we have ...

  y = 30 -x

Substituting into the first equation gives ...

  125 = x(30 -x)

This suggests we can find x by looking for factors of 125 that total 30.

  125 = 1(125) = 5(25)

Factor totals are 126 and 30. This means we have ...

  x = 5, y = 30-5 = 25

or

  x = 25, y = 30 -25 = 5

The rectangle dimensions are 5 yards by 25 yards.

__

Additional comment

The two equations can also be solved graphically, as in the attachment.

The rectangle will be 25 yards long, and 5 yards wide.

The space occupied by any two-dimensional figure in a plane is called the area. The space occupied by the rectangle in a two-dimensional plane is called the area of the rectangle.

The given parameters can be used with the area and perimeter formulas for a rectangle to form an equation that can be solved for the dimensions.

The length and width can be represented by x and y. The formulas for area and perimeter give two equations relating to these two variables:

 A = LW   ⇒   125 = xy

 P = 2(L+W)   ⇒ 60 = 2(x +y)

Using the second equation to write an expression for y, we have ...

y = 30 -x

Substituting into the first equation gives ...

125 = x(30 -x)

This suggests we can find x by looking for factors of 125 that total 30.

125 = 1(125) = 5(25)

Factor totals are 126 and 30. This means we have.

x = 5, y = 30-5 = 25

x = 25, y = 30 -25 = 5

Therefore, the rectangle will be 25 yards long, and 5 yards wide.

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Answer:

A) f(0) = -7

B) f(-3) = 44

C) x = -1, (7/5)

Step-by-step explanation:

2. Let f(x) = 5x² - 2x - 7.

(a) find f(0)

f(x) = 5x² - 2x - 7

f(0) = 5(0)² - 2(0) - 7

f(0) = -7

(b) find f(-3)

f(x) = 5x² - 2x - 7

f(-3) = 5(-3)² - 2(-3) - 7

f(-3) = 5(9) - 2(-3) - 7

f(-3) = 45 + 6 - 7

f(-3) = 45 + 6 - 7

f(-3) = 44

(c) find x if f(x) = 0

f(x) = 5x² - 2x - 7

f(x) = 5x² - 2x - 7 = 0

(5x² + 5x)(-7x - 7)

5x(x + 1) -7(x + 1)

(5x - 7)(x + 1)

5x - 7 = 0,  x + 1 = 0

    +7   +7       -1    -1

---------------  ---------------

5x = 7             x = -1

÷5   ÷5

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

x = (7/5)

5(-1)² - 2(-1) - 7 = 0

5(7/5)² - 2(7/5) - 7 = 0

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

I hope this helps!

Answer:

2·2·2·2 = 16

Step-by-step explanation:

everytime a number is raised by another, that means you are going to multiply the base number  times itself as many times as the exponents tells you. this is a little but tricky to explain, so let me give you some examples:

2² → in this case the base number is 2 and the exponent is 2 as well, so you will multiply 2 times itself, 2 times:

2² = 2 · 2 = 4

2³ → in this case the base number is 2 and the exponent is 3, so you will multiply 2 times itself, 3 times:

2³ = 2 · 2 · 2 = 8

In the question asked, 2 is being raised by 4, so you will multiply 2 times itself, 4 times:

2^4 = 2·2·2·2 = 16

the same format will be used regardless of the base number and the exponent

i hope this helps! :)

Answer:

He completes a lap running in 3 minutes, and walking in 4 minutes.

Step-by-step explanation:

This question can be solved by a system of equations.

I am going to say that:

x is the time needed to complete a lap running.

y is the time needed to complete a lap walking.

He requires 40 minutes to do 4 laps running and 7 laps walking.

This means that:

\(4x + 7y = 40\)

\(4x = 40 - 7y\)

He requires 18 minutes to do 2 laps running and 3 laps walking.

This means that

\(2x + 3y = 18\)

Multipluing everything by 2

\(4x + 6y = 36\)

Since \(4x = 40 - 7y\)

\(40 - 7y + 6y = 36\)

\(y = 4\)

And

\(4x = 40 - 7y\)

\(4x = 40 - 7*4\)

\(4x = 12\)

\(x = \frac{12}{4}\)

\(x = 3\)

He completes a lap running in 3 minutes, and walking in 4 minutes.

Answer:

0.3

Step-by-step explanation:

The number of ways to choose 5 boys from 6 is ₆C₅.

The number of ways to choose 2 girls from 4 is ₄C₂.

The number of ways to choose 7 people from 10 is ₁₀C₇.

P = ₆C₅ ₄C₂ / ₁₀C₇

P = 6 × 6 / 120

P = 0.3

Answer:

Para responder debemos hacer uno del análisis combinatorio. Cada comida de una cena, tiene 1 tipo de aperitivo, 1 de entrada,  1 plato de fondo, 1 bebida y 1 postre.

Ahora bien, cada uno tiene diferentes cantidades de opciones, por lo tanto multiplicando cada una de ellas, obtendremos todas las opciones posibles:

Posibilidades = 5 × 3 × 4 × 3 × 2 = 360 formas diferentes de cenar.

Step-by-step explanation:

Answer:

that would be a

Step-by-step explanation:

just took the test

Answer:

A, B,  D

Step-by-step explanation: