Writing an Equation from a Graph
10
8
*
x
-10 8 6 4
2 4 6 8 10
-2
-6
-8
-10-
Intro
6
Yo
2469 9
Study the graph of the line. Use the drop-down menu
to find its equation.
The equation of the line is
Done

Answer:

the answer will be equal to x= 1962 over 7

Using the given exponential function, we have that:

Every minute, the number of bacteria decays by a factor of 0.98.

A decaying exponential function is modeled by:

[tex]A(t) = A(0)(1 - r)^t[/tex]

In which:

In this problem, the function is, for the amounts each second:

[tex]Bs(t) = 6000\left(\frac{15}{16}\right)^{t}[/tex]

The initial amount is of 6000 bacteria. After 60 seconds = 1 minute, the amount will be of:

[tex]Bs(60) = 6000\left(\frac{15}{16}\right)^{60} = 125[/tex]

The decay factor after 1 minute is:

(6000 - 125)/6000 = 98% = 0.98.

More can be learned about exponential functions at https://brainly.com/question/25537936

#SPJ1

Answer:

The 2 numbers are 3 and 5.

Step-by-step explanation:

x + y = 8

1/x + 1/y = 8/15

From first equation  y = 8 - x so

1/x + 1 / (8-x) = 8/15

Multiply through by the LCM 15x(8-x):-

15(8 - x) + 15x =  8x(8-x)

120 - 15x + 15x = 64x - 8x^2

8x^2 - 64x + 120 = 0

x^2 - 8x + 15 = 0

(x - 3)(x - 5) = 0

x = 3 or  5

so y = 8-3 = 5 or 3.

a) [tex]-3(1)+1=\boxed{-2}[/tex]

b) [tex]4=-3x+1 \longrightarrow -3x=3 \kongrightarrow x=\boxed{-1}[/tex]

The 95% confidence interval of voters not favoring the incumbent is (0.0706, 0.1294).

Sample size, n=400

Sample proportion, p = 40 / 400

= 0.1

We use normal approximation, for this, we check that both np and n(1-p) >5.

Since n*p = 40 > 5 and n*(1-p) = 360 > 5, we can take binomial random variable as normally distributed, with mean = p = 0.1 and standard deviation  = root( p * (1-p) /n )

= 0.015

For constructing Confidence interval,

Margin of Error (ME) =  z x SD = 0.0294

95% confidence interval is given by Sample Mean +/- (Margin of Error)

0.1 +/- 0.0294 = (0.0706 , 0.1294)

Learn more about Margin of Error here https://brainly.com/question/15691460

#SPJ4

Answer:

No this is not a function because the x-values repeat. In a function you can have the the output duplicate but not the input. The input at 3 has duplicates s o this is not a function.

Step-by-step explanation:

Definition

A relation is called to be a function if every domain has an unique range

Here

As

f(3) has 2 corresponding values it's not a function

Answer:

151°

Step-by-step explanation:

The above shape is a quadrilateral.

The exterior angles are :

82°, 70°, 62°, and (x -5)°

Therefore,

82 + 70 + 62 + x - 5 = 360

214 -5 + x = 360

209 + x = 360

x = 360 - 209

x = 151°

Using it's vertex, the maximum value of the quadratic function is -3.19.

A quadratic equation is modeled by:

[tex]y = ax^2 + bx + c[/tex]

The vertex is given by:

[tex](x_v, y_v)[/tex]

In which:

Considering the coefficient a, we have that:

In this problem, the equation is:

y + 4 = -x² + 1.8x

In standard format:

y = -x² + 1.8x - 4.

The coefficients are a = -1 < 0, b = 1.8, c = -4, hence the maximum value is:

[tex]y_v = -\frac{1.8^2 - 4(-1)(-4)}{4(-1)} = -3.19[/tex]

More can be learned about the vertex of a quadratic function at https://brainly.com/question/24737967

#SPJ1

Answer: [tex]120^{\circ}[/tex]

Step-by-step explanation:

[tex]12\pi=2(\pi)(18)\left(\frac{\theta}{360} \right)\\\\12\pi =36\pi \left(\frac{\theta}{360} \right)\\\\\frac{1}{3}=\frac{\theta}{360}\\\\\theta=120^{\circ}[/tex]

To eliminate the biggest common factor, use the distributive property: Solution: 16 + 36 = 4 (4 + 9)

To “distribute” means to divide something or give a share or part of something. According to the distributive property, multiplying the sum of two or more addends by a number will give the same result as multiplying each addend individually by the number and then adding the products together.

Due to that,

To remove the most significant common factor, we must use the distributive property.

Given expression:16 + 36

1, 2, 4, 8, and 16 make up the number 16.

1, 2, 3, 4, 6, 9, 12, 18, and 36 make up the number 36.

Then, 4 is the most prevalent component.

distributed property

The formula is ab + bc

subtracting 4 from the supplied expression.

Therefore, the distributive property is used.

Learn more about distributive property here :

https://brainly.in/question/7963814

#SPJ4

Shape A was reflected over the y axis and translated 1 unit down to get shape B.

Transformation is the movement of a point from its initial location to a new location. Types of transformation are reflection, translation, rotation and dilation.

Translation is the movement of a point either up, down, left or right on the coordinate plane.

Shape A was reflected over the y axis and translated 1 unit down to get shape B.

Find out more on transformation at: https://brainly.com/question/4289712

#SPJ1

The value of x from the given equation is 5/3

Since the three points are collinear to U, they are on a straight line which equals 0

Then we have,

UM + UD =  MD

5x+30 + 10x+20 = 3x+80

Collect like terms

5x + 10x + 50 = 3x + 80

15x - 3x = 80 - 50

12x = 30

x = 30/12 = 15/6 = 5/3

Thus, the value of x from the given equation is 5/3

Learn more about collinear points here:

https://brainly.com/question/18559402

#SPJ1

Answer:

4

Step-by-step explanation:

348 / 87 = 4

There are 87 Customers. The restauraunt served 348 pancakes. You divide 348 by 87 and conclude that each customer ate 4 pancakes.

Answer:

4

Step-by-step explanation:

348 ÷ 87 = 4

each person ate 4 pancakes

Answer:

Step-by-step explanation:

  [tex]\sf f(x) = \dfrac{1}{Sin \ x}[/tex]

f(x) does not contain values where sin x = 0. Sin x is 0 at integral multiples of π.

Domain = R - nπ , n is integers.

The range of Sin x is [-1 , 1] and in this range we cannot find 1/sin x .

Range = (-∞, -1] U [1,∞)

[tex]\sf f(x) =\dfrac{1}{Cos x}[/tex]

f(x) does not contain values where Cos x  = 0 . Cos x is 0 at integral of multiples of (π/2)

   [tex]\sf Domiain =R -\dfrac{(2n+1)\pi }{2}[/tex]

The range of Cos x is [-1,1] and in this range we cannot find 1/Cos x.

Range =  (-∞, -1] U [1,∞)

The linear equation is represented by the second table as  y= -2 .5 x-15 and the solution to the system of equations is  (-6, 0).

First, take two point from the table and as such it will be:

P (-4, -5) and Q(-2, -10)

So the two point is used to create a straight line and as such it will be:

y - y₁ = y₂ - y₁/ x₂ - x₁ (x₁-x )

y -(-5) = [tex]\frac{-10-(-5)}{-2-(-4)}[/tex]  (x -(-4))

y + 5 = [tex]\frac{-5}{2}[/tex]  x +4

y + 5 =  [tex]\frac{-5}{2}[/tex]  x - 10

y =  [tex]\frac{-5}{2}[/tex]  x - 15

y= -2 .5 x-15

The linear equation is represented by the second table as  y= -2 .5 x-15 and the solution to the system of equations is  (-6, 0)

Learn more about  linear functions from

https://brainly.com/question/15602982

#SPJ1

Answer:

1st one option A to lazy to right out location

2nd one -6,0

Step-by-step explanation:

Answer:

The equation of the line that passes through the points (2a, b) and (a, b+1) is [tex]$y=-\frac{1}{a} x+2+b$[/tex].

Step-by-step explanation:

The given points are (2a, b) and (a, b+1).

It is required to find the equation of the line that passes through the points. the slope-intercept form.

Step 1 of 4

Using the given two points, to find the slope.

Given points are (2a, b) and (a, b+1).

Substitute [tex]$x_{1}[/tex]=2a,

[tex]$$\begin{aligned}&y_{1}=b \\&x_{2}=a \text { and } \\&y_{2}=b+1\end{aligned}$$[/tex]

into the formula, [tex]$m=\frac{y_{2}-y_{1}}{x_{2}-x_{1}}$[/tex]

Step 2 of 4

Simplify [tex]$m=\frac{b+1-b}{a-2 a}$[/tex], further

[tex]$$\begin{aligned}m &=\frac{b+1-b}{a-2 a} \\m &=-\frac{1}{a}\end{aligned}$$[/tex]

As a result, the slope is [tex]$m=-\frac{1}{a}$[/tex].

Step 3 of 4

Use the slope [tex]$m=-\frac{1}{a}$[/tex] and the coordinates of one of the points (2a, b) into the point-slope form, [tex]$y-y_{1}=m\left(x-x_{1}\right)$[/tex].

Substitute [tex]$m=-\frac{1}{a}$[/tex],

[tex]x_{1}=2 a$ and$y_{1}=b$[/tex]

into the formula, [tex]$y-y_{1}=m\left(x-x_{1}\right)$[/tex]

[tex]$y-b=-\frac{1}{a}(x-2 a)$[/tex]

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

Step 4 of 4

Rewrite the above equation as a slope-intercept equation. So, from the above term [tex]$y-b=-\frac{1}{a} x+2$[/tex], Add b on each side.

[tex]$$\begin{aligned}&y-b=-\frac{1}{a} x+2 \\&y=-\frac{1}{a} x+2+b\end{aligned}$$[/tex]

Therefore, the equation of the line that passes through the points is [tex]$y=-\frac{1}{a} x+2+b$[/tex].

If we have a function f(x), f(5) is f(x) but replacing x with 5. The result give us a value of y and a point of the function, (x, y).

[tex]f(5) = \frac{1}{4} ({2})^{5} = \frac{32}{4} = 8[/tex]

ANSWER A

Hello!

Substitute x = 5 to find f(5).

⇒ f(5) = 1/4(2)⁵

⇒ f(5) = 32/4

⇒ f(5) = 8

∴ The correct option is A.

Answer: 48

Step-by-step explanation:

By the geometric mean theorem,

[tex]\frac{x}{36}=\frac{64}{x}\\\\x^{2}=36 \cdot 64\\\\x=\sqrt{36 \cdot 64}\\\\x=\sqrt{36} \sqrt{64}=48[/tex]

Answer:

x=22

Step-by-step explanation:

7x+6=160.

Lets start by moving 6 over to the other side. We can do this by subtracting 6 from both sides of the equation.

7x+6-6=160-6

7x=154

Now, let's isolate x by getting rid of the 7. The 7 is being multiplied with x, so to get rid of it we have to divide both sides by 7.

7x/7 = 154/7

x=22

Look Below :

Step-by-step explanation:

160 - 6 = 7x

154 = 7x

Or

7x = 154

x = 22

Answer:

357 mi²

Step-by-step explanation:

A = LW + 0.5πr²

A = (10 × 20 + 0.5 × 3.14159 × 10²) mi²

A = (10 × 20 + 0.5 × 3.14159 × 10²) mi²

A = 357 mi²

Answer:

  3000/5 = 600

Step-by-step explanation:

Every multiplication fact is equivalent to two (2) division facts:

  a·b = c  ⇒  c/a = b  and  c/b = a

Multiplication or division by 10 involves moving the decimal point one place to the right or left (respectively).

The division ...

  [tex]\dfrac{3000}{5}[/tex]

is fully equivalent to ...

  [tex]\dfrac{30}{5}\times 100[/tex]

We assume your "basic fact" is 5×6 = 30. In accordance with the above equivalence to division problems, this tells you ...

  [tex]\dfrac{30}{5}=6\\\\\dfrac{30}{5}\times100 = 6\times100\\\\\dfrac{3000}{5}=600[/tex]

The triangle will be computed based on the information illustrated below.

The steps needed for the construction will be:

Draw a segment XY.

Locate B, C on XY such that BC = 4.5cm.

Construct a line segment such that B = 90°.

With C as center and radius 7cm, draw a arc cutting BD at A.

Then, the required triangle ABC will be gotten.

Learn more about triangles on:

brainly.com/question/1058720

#SPJ1

Answer:

Step-by-step explanation:

If she offers to 9, but 2 reject, that means she paid for 7 friends.

If each friend costs $4, multiply 4 by 7.

The answer is $28

Hope this helps! (:

There is a rule for finding perimetre of all polygons that perimetre is the sum of all the side's lengths ; according to this rule add the length of the sides of this polygon and you'll get the answer , the answer is the choice that you've written ( 2+3×2+5+6+7+9 ) or ( 2+3+3+5+6+7+9 ) both are correct because 3+3 is same as 3×2

perimetre is 2+3×2+5+6+7+9 = 35 units

HOPE IT HELPS

Answer:

B

Step-by-step explanation:

given a quadratic function in standard form

y = ax² + bx + c ( a ≠ 0 ) , then the x- coordinate of the vertex is

x = - [tex]\frac{b}{2a}[/tex]

y = x² - 4x + 3 ← is in standard form

with a = 1, b = - 4 , then

x = - [tex]\frac{-4}{2}[/tex] = 2

substitute into the equation for corresponding y- coordinate

y = 2² - 4(2) + 3 = 4 - 8 + 3 = - 1

vertex = (2, - 1 )

According to the central angle theorem, the measure of angle MNP = 114°.

According to the central angle theorem of a circle, the measure of central angle MNP equals the measure of intercepted arc MP.

Measure of arc MP = 114°

Measure of angle MNP = arc MP

Measure of angle MNP = 114° [central angle theorem]

Learn more about the central angle theorem on:

https://brainly.com/question/5436956

#SPJ1

The new employee should choose the second option to make the most money on a typical day. The amount that the new employee will earn 20-day at this rate is $3,100.

Multiplication is the process of multiplying, therefore, adding a number to itself for the number of times stated. For example, 3 × 4 means 3 is added to itself 4 times, and vice versa for the other number.

For Option 1,

Receive an hourly rate of $15.25 for 8 hours plus $0.50 per bottle of wax sold to customers. Also, A typical day consists of 12 bottles of wax sold per detailer.

Earning = ($15.25 × 8) + ($0.50×12)

= $122 + $6

= $128

For Option 2,

Receive $38.75 per automobile detailed in a day. Also, 4 automobiles are detailed per employee. Therefore, the earnings are,

Earning = $38.75 × 4

= $155

For Option 3,

Receive $100 per day plus 2% of sales in a day. Also, the average daily sales are $1,500. Therefore, the earnings are,

Earning = $100 + 0.02($1500)

= $130

Hence, The new employee should choose the second option to make the most money on a typical day.

2.)

The amount that the new employee will earn 20-day at this rate is,

Amount earned = $155 × 20 days

                           = $3,100

Hence, The amount that the new employee will earn 20-day at this rate is $3,100.

Learn more about Multiplication:

https://brainly.com/question/14059007

#SPJ1

The trigonometric function gives the ratio of different sides of a right-angle triangle. The given problems can be solved as given below.

The trigonometric function gives the ratio of different sides of a right-angle triangle.

[tex]\rm Sin \theta=\dfrac{Perpendicular}{Hypotenuse}\\\\\\Cos \theta=\dfrac{Base}{Hypotenuse}\\\\\\Tan \theta=\dfrac{Perpendicular}{Base}\\\\\\Cosec \theta=\dfrac{Hypotenuse}{Perpendicular}\\\\\\Sec \theta=\dfrac{Hypotenuse}{Base}\\\\\\Cot \theta=\dfrac{Base}{Perpendicular}\\\\\\[/tex]

where perpendicular is the side of the triangle which is opposite to the angle, and the hypotenuse is the longest side of the triangle which is opposite to the 90° angle.

1st.) x = 5 /Sin(30°)

x = 10

!) sin(45°) = 4/x

x = 4/sin(45°)

x = 4√2

I) Cos(45°) = √3 / x

x = √3 / Cos(45°)

x = √6

E) Tan(60°) = 3√3 / x

x = 3√3 / 3

W) For isosceles right-triangle, the angle made by the legs and the hypotenuse is always 45°.

x = 45°

N) x² + x² = (7√2)²

x = 7

V) Tan(60°) = 7 / x

x = 7√3/3

K) x² + x² = (9)²

x = 9/√2

Y) Sin(60°) = 7√3/x

x = 14

M) Sin(30°) = x/11

x = 11/2

T) Sin(45°) = x/√10

x = √5

A) x + 2x + 90° = 180°

x = 30°

O) Sin(45°) = √2 / x

x = 2

R) Tan(30°) = x / 4

x = 4/√3 = 4√3 / 3

S) Sin(60°) = x / (10/3)

x = 5√3 / 3

Learn more about Trigonometric functions:

https://brainly.com/question/6904750

#SPJ1

The inverse of any function F(x) is also a function.

A function is an abecedarian notion in mathematics and computer programming. In both contexts, a function is a regulation or relationship that maps input values to corresponding output values. It takes one or more input values, performs a set of operations or calculations, and produces a single output value.

There are many types of functions such as trigonometric function, logarithmic function, exponential function, and so on.

If a function f(x) gives output y then its inverse will be [tex]f^{-1}(y)[/tex] and will return x as output.

So, the statement is true.

Learn more about function here:

https://brainly.com/question/30721594

#SPJ7