Currently, the temperature of a bowl of ramen is 57°C above room temperature. The temperature of the ramen decreases based on the function f(t) = 57(0.89)t where t represents time elapsed in minutes. Where does the graph of f(t) cross the y-axis, and what does this represent in the context of the problem?

a
f(57) = 0; the time it takes for the above-room temperature to reach 0°C

b
f(0) = 57; the time it takes for the above-room temperature to reach 0°C

c
f(57) = 0; the above-room temperature of the ramen at time t = 0

d
f(0) = 57; the above-room temperature of the ramen at time t = 0

Answer: To calculate the final value of an investment with compound interest, you can use the formula:

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

where:

A = final amount

P = initial investment (principal)

r = annual interest rate (expressed as a decimal)

n = number of times interest is compounded per year

t = number of years the investment is held

In this case, we have:

P = 170000

r = 0.04 (4% expressed as a decimal)

n = 2 (semiannually)

t = 7

So plugging these values into the formula:

A = 170000(1 + 0.04/2)^(2*7)

A = 170000(1.02)^14

A = 170000(1.286816)

A = 217,912.72

The final value of the investment after 7 years is 217,912.72 baht.

Please note that this is a simple interest calculation, and in real world some other factors like taxes, fees, etc should be taken into account.

Step-by-step explanation:

For the given similar triangles ΔBCF ~ΔBDE, the value of x is, 10

Triangles with the same shape but different sizes are said to be similar triangles. Squares with any side length and all equilateral triangles are examples of related objects. In other words, if two triangles are similar, their corresponding sides are proportionately equal and their corresponding angles are congruent. Triangle resemblance is shown here by the symbol "≈"

Given that,

One triangle, ΔBCF

one segment CF which is intersecting sides BD & BE

ΔBDE has one similar triangle inside, which is ΔBCF

Triangles ΔBDEand ΔBCF similar,

So, we can say ΔBCF ~ΔBDE

And it is known that

for similar triangles, ratio of lengths of sides are equal for similar triangles

so, BD/BE = BC/BF

⇒ 91/(56+ 5X-8) = 52/56

⇒ 65X + 624 = 1274

⇒ 1274-624 = 65X

⇒ X = 10

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Answer: I'm sorry, I am a text-based user and do not have the capability to drag tiles. However, I can provide you with a written proof of the statement "ABCD is a parallelogram" given the given information "AD = BC and AD || BC":

Statements:

AD = BC

AD || BC

Angles A and C are congruent

Angles B and D are congruent

Opposite sides are equal in length

Reasons:

Given

Given

If two lines are parallel, then the corresponding angles are congruent

If two lines are parallel, then the corresponding angles are congruent

If opposite angles of a quadrilateral are congruent, then the opposite sides are equal in length

Therefore, ABCD is a parallelogram.

Step-by-step explanation:

Answer:

1/24

Step-by-step explanation:

[tex]a^{-1} =\frac{1}{a} \\24^{-1} =\frac{1}{24}[/tex]

A negative exponent is converted to a fraction while the power goes to the base which is at the denominator.

The complete proof by giving the correct reasons is explained below.

A segment is a drawn straight line which has two end points. It may be divided into a number of sub-segments.

The complete proof which explains the correct reasons are given as:

                  STATEMENT                     REASON

1. AC = AB + BC                                   Addition property of a segment

2. DE = DB + BE                                   Addition property of a segment

3. AC = DE                                           Equality property of line segments

4. AB + BC = DB + BE                        Congruent parts of equal line segments

5. AB = BE                                           Given

6. BE + BC = DB + BE                         Substitution property

7. BC = DB                                          Congruent parts of equal line segments

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Answer:

The final answer is 7.

Step-by-step explanation:

Since the question states that Little's law can be applied to any single part of the store (for example, just the checkout line), then the average number of shoppers,

�

, in the checkout line at any time is

�

=

�

�

, where

�

is the number of shoppers entering the checkout line per minute and

�

is the average number of minutes each shopper spends in the checkout line.

Since 84 shoppers per hour make a purchase, 84 shoppers per hour enter the checkout line. However, this needs to be converted to the number of shoppers per minute (in order to be used with

�

=

5

). Since there are 60 minutes in one hour, the rate is

84

shoppers

per

hour

60

minutes

=

1.4

shoppers per minute. Using the given formula with

�

=

1.4

and

�

=

5

yields

�

=

�

�

=

(

1.4

)

(

5

)

=

7

Therefore, the average number of shoppers,

�

, in the checkout line at any time during business hours is 7.

The definition of a rate of change is a rate that expresses how one quantity changes in relation to another quantity. When d(t)=2t is stated, the average speed from t=5 to t=9 is 28 feet or 2 feet per second.

A rate of change is a rate that describes how one quantity changes in relation to another quantity.

d(t)=2t² is given, we need to find the average speed in feet per second from t=5 to t=9.

d(t)=2t².

The average rate of change is calculated by the formula:

d(t₂) - d(t₁) / t₂ - t₁

So plug in 5 as t₁ and 9 as t₂.

=> d(9) - d(5) / 9 - 5

=> (2×81) - (2×25) / 9 - 5

=> 162 - 50 / 4

=> 112 / 4 = 28

Therefore the average speed is 28 feet.

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Their ages Mario is four years old, while Martina is five.

If a person is "x" years old now, then "n" years from now, that person will be "x + n" years old. The age of this would be equal to x - n years n years ago.

Mario is four years old, while Martina is five.

Explanation:

2x -y = 6 adding two to the number 4x -2y = 12

3x + 2y = 23

The sum of the two figures

4x - 2y = 12

3x + 2y = 23

7x = 35 by 7 multiply both sides.

Marina is x years old.

2x - y = 6 Put 5 in place of x, then figure out y.

2(5) -y = 6

10 -y = 6 From both sides, deduct 10

-y = -4 Divide the two sides by -1.

Mario has a value of 4.  

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The required graph of the inequality  |x| + 1 < 3  is shown in the image.

Inequality can be defined as the relation of the equation containing the symbol of ( ≤, ≥, <, >) instead of the equal sign in an equation.

Here,
Given inequality,
|x| + 1 < 3

|x| < 2
-2 < x < 2

So the graph of the given inequality is the region between -2 < x < 2.

Thus, the required graph of the inequality   |x| + 1 < 3 is shown in the image.

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Answer:

below

Step-by-step explanation:

(8)(-2)(-1)   =   8 * -2 * -1 = 8 * 2 = 16

The next step on solving completing square is  5(x² + 4x)=7 and

5 (x² + 4x + 4 )=7 + 20

Quadratic equation is the equation of the 2nd degree. One of the standard formulas for solving quadratic equations is 'ax² + bx + c = 0' here a, b, and c are constants or numerical coefficients. 'X' here is an unknown variable.

Case (I).

Given equation is

5x² + 20x- 7 =0

Firstly, we will add of 7 in both sides

5x² + 20x- 7 +7 = 7

Now, same variable of opposite sign is cancelled

5x² + 20x=7

Now, taking 5 common from left side

5(x² + 4x)=7

Case (II).

Given equation

5x² + 20x- 7 =0

Firstly, we will add of 7 in both sides

5x² + 20x= 7

Now, we will add of 20 in both sides

5x² + 20x + 20= 7 + 20

Now, taking common of 5 from left side

5 (x² + 4x + 4 )=7 + 20

So, The next step on solving completing square is  5(x² + 4x)=7 and

5 (x² + 4x + 4 )=7 + 20

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Answer:

after 42 months he has $2,696 in interest

compound quarterly is equivalent to annual rate of 4.835%

Part b

after 42 months he has $2,713 compound continuously

the diffrence is $17  

15000 + 4.75% · 42  compound quarterly is $2,696

15000 + 4.75% · 42 compound continuously is $2,696

Answer:

Step-by-step explanation:

Stop posting FLVS questions on this website. It is illegal, and you can be expelled from the program. :)

Answer: Number 1 Is also ∠ABC and it is a right triangle

Number 2 is CB and BE

Number 3 is 18

Step-by-step explanation:

Step-by-step explanation:

1.

angle ABD

2.

CB and BE

3.

"bisects" means it is cutting it in half.

so, angles 3 and 4 are both half of the main angle 94°.

94/2 = 47°

angle CBE = angle 4 = 47° = (3x - 7)°

3x - 7 = 47

3x = 54

x = 18

Answer: Justin is 9 years old, Peyton is 6 years old and Matt is 24 years old

Step-by-step explanation: Let the age of Justin be x years .

And Peyton is three years younger than Justin, therefore Peyton age is

(x-3) years

And Matt is four times as old as Peyton, therefore Matt age is

4(x-3) years

And it is given that

x + x - 3 + 4 (x - 3) = 39

x + x - 3 + 4x - 12 = 39

6x - 15 = 39

6x = 54

x = 9

Therefore , Justin is 9 years old, Peyton is 6 years old and Matt is 24 years old .

The value of x is 25.

It is a two-dimensional figure which has three sides and the sum of the three angles is equal to 180 degrees.

We have,

The given figure is an equilateral triangle.

AB = BC = AC

Now,

3x - 5 = 2x + 20 = 4x - 30

Take any two sides.

Now,

Solve for x.

3x - 5 = 2x + 20

3x - 2x = 20 + 5

x = 25

or

Solve for x.

2x + 20 = 4x - 30

20 + 30 = 4x - 2x

50 = 2x

x = 25

or

Solve for x.

3x - 5 = 4x - 30

30 - 5 = 4x - 3x

25 = x

x = 25

Thus,

The value of x is 25.

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Answer:

x−y=−2

4x−y=4

To solve a pair of equations using substitution, first solve one of the equations for one of the variables. Then substitute the result for that variable in the other equation.

x−y=−2,4x−y=4

Choose one of the equations and solve it for x by isolating x on the left hand side of the equal sign.

x−y=−2

Add y to both sides of the equation.

x=y−2

Substitute y−2 for x in the other equation, 4x−y=4.

4(y−2)−y=4

Multiply 4 times y−2.

4y−8−y=4

Add 4y to −y.

3y−8=4

Add 8 to both sides of the equation.

3y=12

Divide both sides by 3.

y=4

Substitute 4 for y in x=y−2. Because the resulting equation contains only one variable, you can solve for x directly.

x=4−2

Add −2 to 4.

x=2

The system is now solved

The train will cover 3.33 distance in one and a half hours.

What is the distance?

Distance is the sum of an object's movements, regardless of direction. The distance can be defined as the amount of space an object has covered, regardless of its starting or ending position.

Here, we ave

Given: A train travels at an average speed of 100 kilometers per hour.

We have to find out If the train travel's for one and a half hour, what distance it covered.

Speed = 100kn

Distance=?

Time=   30 min

Distance = speed/time

Distance = 100/30

Distance = 3.33 meters

Hence, the train will cover 3.33 distance in one and a half hours.

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(a) The net change is -1

(b) The average rate of change is -1/5.

Net change of a function is the difference of the output values corresponding to two input values.

Consider the function y = f(x).

Net change from a point x = a to x = b is,

Net change = f(b) - f(a)

Average rate of change of a function from x = a to x = b is,

Average rate of change = [f(b) - f(a)] / [b - a]

The points are (0, 5) and (5, 4).

Here, the value of x on the indicated points are x = 0 and x = 5.

The value of y are f(0) = 5 and f(5) = 4.

Net change = f(5) - f(0) = 4 - 5 = -1

Average rate of change = [f(5) - f(0)] / [5 - 0] = (4 - 5) / 5 = -1/5

Hence the net change is -1 and the average rate of change is -1/5.

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The variable equation is  z=262+387 and the solution being z=649

Linear equations help in representing the relationship between variables such as x, y, and z, and are expressed in exponents of one degree. In these linear equations, we use algebra, starting from the basics such as the addition and subtraction of algebraic expressions.

Given here: z minus 387 is equal to 262 write in variable equation

we can construct an equation z-387=262

Simplifying we get  z=262+387

                                z=649

Hence, The variable equation is  z=262+387 and the solution being z=649

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The slope of the line is negative three fourths. option C

You should know that slope is the rate of change of y with respect to x. We can equally say that  slope is the rise over run or an increase in y over an increase in x vice versa.

The given coordinates for the computation of the slope are

(-2,3) and (2,0)

The formula for slope is

m= (y₂ -y₁)/(x₂-x₁)

This implies that the slope of the line is

m=(0-3)/(2+2)

m= -3/4

In conclusion, the slope of the line is negative three fourths

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Answer:

c: -3/4

Step-by-step explanation:

The better plan is offered by bank B.

We know that the compound interest that we get on investment is the kind of interest that would be obtain when we consider not only the principal but also the interest on the investment.

Now we know that in the case of Bank A the interest rate that is offered by the bank is 0.95% while for the bank B the interest rate is 3.75%. We can see that the formula for the compound interest is;

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

A = amount

P = principal

r = rate

t = time

n = Number of times compound.

The lesser the number of times compounded and the higher the percentage the higher the amount at the end of the given time.

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When Δ BCF is congruent to Δ BDE, then the value of x is obtained as 10.

What is congruence?

In mathematics, the term "congruent" refers to figures and shapes that can be flipped or rearranged to match up with other ones. These forms can be mirrored to produce related shapes.

It is given that Δ BCF ~ Δ BDE.

Since the triangles are congruent so, it can be written that -

BC/BD = BF/BE

Substituting the values in the equation -

52/(52 + 39) = 56/[(56) + (5x-8)]

Simplifying the equation -

52/91 = 56/[(56) + (5x-8)]

4/7 = 56/(48+5x)

4(48+5x) = 56 × 7

192 + 20x = 392

20x = 392 - 192

20x = 200

x = 200/20

x = 10

Therefore, the value of x is obtained as 10.

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Answer:30

Step-by-step explanation:

30*30=900

Answer: 30

Step-by-step explanation:

Okay so first you have 30mm right but in total you need 900 so here is a shortcut you just have to multiply 30 x 30 and you get 900 so the answer is 900 (I would know because I am learning about this)

Answer:

Step-by-step explanation:

let me know when you find it

Answer:

To multiply using fraction form, we can convert the decimal numbers to fractions and then multiply them together.

4.4 can be written as 44/10

3.2 can be written as 32/10

So the multiplication would be:

(44/10) * (32/10) = (4432)/(1010) = 1408/100

To simplify this fraction, we can divide the numerator and denominator by their greatest common factor which is 4, we get:

1408/100 = 352/25

So the product of 4.4 and 3.2 is 352/25 in fraction form.

Answer:

5 books one calendar

Step-by-step explanation:

just mutiplied 4 by 5 wich is 20 n then added 3 because the calendar is 3$

you put 5 - 2300 60 + 40 then how do 25 + 69 equals to 100 to 108 cost 25 million

The difference between collinear and coplanar is that collinear points line on the same line and coplanar lie on the same plane.

On a single straight line, collinear points are located. A scalar multiple of two collinear vectors can also be used to represent them. If the two vectors p and q are collinear, then p=kq, where k is a scalar value We will now talk about coplanar, which refers to objects that are on the same plane and can be said to be coplanar.

Whether we use points or vectors, the terms "collinear" and "coplanar" are properties that can be utilised in a variety of situations..

If p→,q→

are two collinear vectors then p→=kq→

where k

is a scalar number.

If p→,q→,r→

are three coplanar vectors then p→=mq→+nr→

where m,n

are scalar numbers.

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Let x represent the number of pages Aiden read on day one.

On day two he read twice the number of pages, so 2x represents the number of pages he read on day two.

On the third day, he read 6 pages less than what he read on the first day, so x - 6 represents the number of pages he read on day three.

The total number of pages he read in three days is the sum of the pages he read on each day:

x + 2x + (x - 6) = 458

3x - 6 = 458

3x = 464

x = 154

Aiden read 154 pages on day one.

The function that represents the point (x, y) being reflected across the y-axis is F(x, y) = F(-x, y)

A point (x, y) can be reflected across the y-axis by multiplying the x-coordinate by -1.

This is because the y-axis is a vertical line running through the center of a coordinate plane, and reflecting a point across this line means reversing its position along the horizontal (x) axis.

So, to reflect a point (x, y) across the y-axis, the function can be represented as:

f(x, y) = (-x, y)

This function takes in the coordinates (x, y) of a point and returns the new coordinates (-x, y) after reflecting it across the y-axis.

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A) If the Permutation occurs when order of choices matters will be; 24 ways

B) If the Combination occurs when order of choices doesn't matter will be; 4 ways

Each of the different groups or selections can be formed by taking some or all of a number of objects, irrespective of their arrangments is called a combination.

Assume that we want to choose 3 letters without replacement from the 4 letters A B C and D.

a) Permutation occurrs when order of choices matters;

N = 4P3 = 4!/(4-3)! = 4!/1!

N = 24 ways

b) Combination occurs when order of choices doesn't matter;

N = 4C3 = 4!/3!(4-3)! = 4!/3!(1!)

N = 4 ways

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Answer:

I think 0.15b would be a no because that is just what a customer would tip.

15b is also a no because that is 15 times the price of the bill.

b + 0.15b is a yes because you are adding the bill and 15% of the bill as a tip.

1.15b is a no because you are multiplying the bill by 1.15.

1.015 is a no because you're multiplying the bill by 1.015.

b + (15/100)b is a yes because you are adding the bill and 15% out of 100% of the bill as a tip.

b + 0.15 is a no because you would be tipping them 15 cents, not 15% of the bill.