f(x)= 4x - 2

find x if f(x)=2​

Answer:

since the decay rate constant of0.0 250 min.

hence the time required for the sample to decay to one forth of it's initial value is

Step-by-step explanation:

Answer:

Step-by-step explanation:

Answer:

£275

Step-by-step explanation:

To find how much Ben's rent is per month, we first have to find how much Ben spends on rent annually (every year). We can do this by multiplying his annual salary by the percentage spent on rent.  

22000 · 0.15 = 3300

Now that we know Ben spends 3300 on rent a year, we can divide that amount by 12 (the number of months in a year) to find out how much his rent is per month.

3300 / 12 = 275

Alisa's house is about 99 miles from the beach

Speed is the distance travelled per unit. Mathematically, it can be expressed as:

Speed = distance / time

With above formula, we can determine the distance of Alisa's house from the beach. Details below

The following data were obtained from the question:

The distance of Alisa's house from the beach can be obtained as followed:

Speed = distance / time

Cross multiply

Distance = speed × time

Distance = 55 × 1.8

Distance = 99 miles

Thus, Alisa's house is about 99 miles from the beach

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The distance between the beach and Alisa's house is 99 miles.

Here we need to use the general relation:

Distance = Speed*Time.

Here we know that Alisa's speed is 55 miles per hour, and she drives for 1.8 hours, then we can replace:

Speed = 55 mi/h

Time = 1.8 hours

Replacing that in the distance relation we will get:

D = (55 mi/h)*(1.8 h)= 99 mi

The distance between the beach and Alisa's house is 99 miles.

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The orange will fall 64 feet in 8 seconds.

Distance:

Distance is defined as how much ground an object has covered despite its starting or ending point.

Given,

The distance a falling object travels towards the earth is directly proportional to the square of the time that it falls.

And an orange falls 16 feet in 4 seconds.

Here we need to find the how far it will fall in 8 seconds.

Based on the given details,

We know the that distance is,

D = kt²  

where

k is the constant of proportionality.  

To find the value of k we have to apply the given values on the equation.

=> 16 = k x (4)²

=> 16 = k x 16

=> k = 16/16

=> k = 1.

So, in 8 seconds it will fall at

=> D = 1 x (8)²

=> D = 1 x 64

=> D = 64 feet.

Therefore, the orange will fall at 64 feet in 8 seconds.

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Rita, John, and Kareem sent  17, 7, and 68 messages, respectively.

Use algebraic expressions to solve this problem.

Let x, y, and z be the number of messages sent by Rita, John, and Kareem, respectively.

If Rita, John, and Kareem sent a total of 92 text messages during the weekend, then:

x + y + z = 92

If Kareem sent 4 times as many messages as Rita, then:

z = 4 * x

z = 4x

If John sent 10 fewer messages than Rita, then:

y = x - 10

Evaluating z = 4x and y = x - 10 to the first equation:

x + y + z = 92

x + (x - 10) + 4x = 92

x + x - 10 + 4x = 92

6x = 92 + 10

6x = 102

x = 17

Recall that y = x - 10:

y = 17 - 10

y = 7

And z = 4x:

z = 4(17)

z = 68

If x, y, and z are the number of messages sent by Rita, John, and Kareem, respectively, then Rita, John, and Kareem sent 17, 7, and 68 messages, respectively.

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Answer:59

Step-by-step explanation:

81-22=59

answer is 59 because 59 is a prime number

Step-by-step explanation:

5x-2+3-7

0=5x-9+3

0=5x-6

6=5x

x=6/5

Answer:

Full-time worker minimum monthly income = US$ 7,846.40

Part-time worker minimum monthly income = US$ 7,846.40

Full-time worker hourly wage = US$ 49.04

Part-time worker hourly wage = US$ 98.08

Step-by-step explanation:

1. Let's review the information given to answer the question correctly:

Monthly costs of a 2-adult and 3-children family in the Modesto metro area = US$ 7,846

Full-time worker = 4 weeks of 40-hour per month

Part-time worker = 2 weeks of 40-hour per month

2. Let's calculate the minimum monthly income and hourly wage per worker

Full-time worker hourly wage = Monthly costs/160

Part-time worker hourly wage = Monthly costs/80

Full-time worker hourly wage = 7,846/160

Part-time worker hourly wage = 7,846/80

Full-time worker hourly wage = US$ 49.04

Part-time worker hourly wage = US$ 98.08

Full-time worker minimum monthly income = Hourly wage * 160

Part-time worker minimum monthly income = Hourly wage * 80

Full-time worker minimum monthly income = US$ 7,846.40

Part-time worker minimum monthly income = US$ 7,846.40

No, the Adoncia drawing will not fit on the drawing sheet.

Given adoncia is drawing to scale, she uses a 15-foot scale in the 1-inch monument. And in the drawing, the front of the monument is about 80 feet high and 200 feet long.

The given parameters are;

The scale of the drawing in the front of the monument is 15 ft = 1 in.

Actual size of the monument;

Height = 80 feet

Length = 200 feet.

So we have;

Required size of  paper height = 80/15 = 16/3 = 5.33 in.

Required size of  paper length = 200/15 = 40/3 = 13.33 in.

The size of the paper is 11 in. about the size of a standard 8.5-inch sheet of letterhead. equals 11 in.

Design length, 13.33" > Paper length > 11".

Therefore, when Adoncia draws a scale drawing of the front of the linco and she uses the 15ft scale  in the 1in monument, the drawing does not fit on the paper.

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Answer:

4x(5 − x^2)

Step-by-step explanation:

20 − 4x^3

= 4x(5 − x^2)

The equivalent expression after taking a common factor is,

⇒ 2 (10 - 2x³)

What is Mathematical expression?

The combination of numbers and variables by using sign addition, subtraction, multiplication and division is called Mathematical expression.

Given that;

The expression is;

⇒ 20 - 4x³

Now, Take common factor as;

⇒ 20 - 4x³ = 2 × 10 - 2 × 2x³

                 = 2 (10 - 2x³)

Thus, The equivalent expression after taking a common factor is,

⇒ 2 (10 - 2x³)

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Answer:

I would say 6

Step-by-step explanation:

Difference is subtraction.

Option B) is correct that is shape 2 is congruent to shape 1 because shape 2 is reflection of shape 1.

We know that two figures or objects are congruent if they have the same shape and size or they are the mirror image of each other.

Translation : It simply means moving. Every point should be moved in same distance and in same direction

Rotation : It means turning around a center.

Reflection : In this, the image is of the same size as the pre-image.

So according to the given figure we can see that the shape is not translated or rotated from a center but is reflected as shape 1 is the image of shape 2.

Hence shape 2 is congruent to shape 1 because shape 2 is reflection of shape 1.

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The quotient when we divide the amount of white sugar by the brown sugar will be 2 2/3

From the information, it was stated that Carol is baking cookies and needs 2/1/4 cups of flower 2/3 cups with sugar 1/4cups of brown sugar and 1/16 cups of baking soda.

The quotient when we divide the amount of white sugar by the brown sugar will be:

= 2/3 ÷ 1/4

= 2/3 × 4/1

= 2 2/3

Therefore, the quotient is 2 2/3.

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Carol is baking cookies and needs 2 1/4 cups of flour 2/3 cup of white sugar 1/4 cup of brown sugar and 1/16 cup of baking soda use this information to answer the following questions

divide the amount of white sugar by the amount of brown sugar. what is the quotient? (must be a fraction)

Answer:

the prime factorizime of 90 is this 2 × 3 × 3 × 5 or 2 × 3² ×5

Answer:

5/2 or 2.5

Step-by-step explanation

Five over two or two and 5 tenths

The value of expression by using common factor is  x³y² (x - 6y).

Here,

The expression is,

x⁴y² - 6x³y³

We have to solve by using common factor.

What is Mathematical expression?

The combination of numbers and variables by using operations addition, subtraction, multiplication and division is called Mathematical expression.

Now,

The expression is,

x⁴y² - 6x³y³

By using common factor we solve as,

x⁴y² - 6x³y³ = x*x*x*x*y*y - 6*x*x*x*y*y*

                  = x³y² (x - 6y)

Hence, The value of expression by using common factor is  x³y² (x - 6y).

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Answer:

=-1

Step-by-step explanation:

3x2/2 + -4

6/2 + -4

3 + (-4)

=-1

Answer:

-1

Step-by-step explanation:

Brackets

Indicies

Division

Multiplication

Addition

Subtraction

3 × 2/2 + -4

no brackets. no indicies.

Division

2/2 = 1

3 × 1 + -4

Multiplication

3 × 1 = 3

Addition

3 + -4 = -1

Making Vi the subject of formula gives the following expression: Vi = √(Vf² - 2aX).

An expression can be defined as a mathematical equation which is used to show the relationship existing between two or more variables and numerical quantities.

In this exercise, you're required to describe the steps that should be taken to rearrange and make Vi the subject of formula. Therefore, the appropriate and required steps are listed as follows:

Vf² = Vi² + 2aX

Subtracting 2aX from both sides of the equation, we have:

Vf² - 2aX = Vi² + 2aX - 2aX

Vi² = Vf² - 2aX

Taking the square root of both sides, we have:

Vi² = Vf² - 2aX

Vi = √(Vf² - 2aX)

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Answer:

(Choice A) A Yes

Step-by-step explanation:

The compound inequality for the graph is -5 ≤ x ≤ -1

On the graph, we have the following endpoints

Also, the region between endpoints is shaded.

This means that the endpoint is a union inequality

So, we have the compound inequality to be

Endpoint 1 ≤ x ≤ Endpoint 2

This gives

-5 ≤ x ≤ -1

Hence, the compound inequality for the graph is -5 ≤ x ≤ -1

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The dimensions of the original photo are 6 x 6.

A rectangle is a quadrilateral having four sides and the sum of the angles is 180 in the rectangle the opposite two sides are equal and parallel and the two sides are at 90-degree angles.

The formula for a square's area, A = s², is the side length raised to the power of two. The 256 in2 section of the larger image was made available to us. Additionally, it was mentioned that the length of the expanded image is equal to the original image's length plus ten inches.

We can therefore create an equation to solve for x, which stands for the length of the original snapshot, based on the aforementioned statements.

A = s²

where s = ( x + 10 )

A = ( x+10 )² = 256

Solving for x,

x = 6 in.

The dimensions of the original photo are 6 x 6.

The complete question is given below:-

Shayna enlarged a square photo by adding 10 inches to each side so it could be seen on a large poster. The area of the enlarged photo is 256 square inches. In the equation (x + 10)2 = 256, x represents the side measure of the original square photo. What were the dimensions of the original photo?

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Answer:

9.3

Step-by-step explanation:

0.31

× 0.30

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

0.30

9.30

-----------

9.6

Answer:

1. 13^5

2. prime

3. 8

4. 13

5. 6

Using the midpoint formula, the coordinates of point U are: (9, 2).

The midpoint formula is: M[(x2 + x1)/2, (y2 + y1)/2]

Given the following:

Midpoint of TU is at: M(5,5)

Point T is at (1, 8), therefore, let:

M(5,5) = (x, y)

T(1, 8) = (x1, y1)

U(?, ?) = (x2, y2)

Plug in the values

M(5, 5) = [(x2 + 1)/2, (y2 + 8)/2]

5 = (x2 + 1)/2

10 = x2 + 1

10 - 1 = x2

9 = x2

x2 = 9

5 = (y2 + 8)/2

10 = y2 + 8

10 - 8 = y2

2 = y2

y2 = 2

The coordinates of point U are: (9, 2).

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Answer:

x = 1/2 and

x = -15/2

Step-by-step explanation:

First, get the absolute value alone on one side if the equation.

2 |2x + 7 | = 16

Divide both sides by 2.

| 2x + 7 | = 8

Once the absolute value sign is by itself, you will separate the equation into two separate equations.

2x+7=8 and 2x+7=-8

Solve these two equations separately and get two solutions.

2x + 7 = 8

Subtract 7.

2x = 1

Divide by 2.

x = 1/2 Here is one solution.

2x + 7 = -8

Subtract 7.

2x = -15

Divide by 2.

x = -15/2 Here is a second solution.

Answer:

x = - [tex]\frac{15}{2}[/tex] , x = [tex]\frac{1}{2}[/tex]

Step-by-step explanation:

2 | 2x + 7 | = 16 ( divide both sides by 2 )

| 2x + 7 | = 8

the absolute value function always gives a positive result, but the expression inside can be positive or negative , that is

2x + 7 = 8 ( subtract 7 from both sides )

2x = 1 ( divide both sides by 2 )

x = [tex]\frac{1}{2}[/tex]

or

- (2x + 7) = 8

- 2x - 7 = 8 ( add 7 to both sides )

- 2x = 15 ( divide both sides by - 2 )

x = - [tex]\frac{15}{2}[/tex]

As a check

substitute these values into the left side and if equal to the right side then they are a solution

x = [tex]\frac{1}{2}[/tex]

2 | 2([tex]\frac{1}{2}[/tex] ) + 7 | = 2 | 1 + 7 | = 2 | 8 | = 16 = right side

x = - [tex]\frac{15}{2}[/tex]

2 | 2(- [tex]\frac{15}{2}[/tex] ) + 7 | = 2 | - 15 + 7 | = 2 | - 8 | = 2 | 8 | = 16 = right side

then x = - [tex]\frac{15}{2}[/tex] and x = [tex]\frac{1}{2}[/tex] are the solutions