Solve the equation below for x.

cx-4=7

A. x=c/3
B. x=3/c
C. x=11/c
D. x=c/11

Answer:

B.

Step-by-step explanation:

$2.25 is the cost of each video that is rented, so $2.25 times v (or 2.25v) represents the cost of 'v' videos.

$20 is the constant, as it costs $20 to join the club. Since this doesn't change, it is the constant.

So, we would have the equation:

f(v) = 2.25v + 20

f(v) is the total cost.

B is your answer because it is the only one with the correct equation.

Hope this helps!

Explanation:

Replace (4x+6) with another variable. Let's go for w.

We'll then use the distributive property like so,

(4x+6)(2x-3)

w*(2x-3)

w*2x + w*(-3)

(4x+6)(2x) + (4x+6)(-3)

The algebraic expression for Desmond's height is x + 5.

If we let "x" represent Niki's height in inches, then Desmond's height can be represented by "x + 5", since Desmond is 5 inches taller than Niki.

So the algebraic expression for Desmond's height is x + 5.

Algebraic expressions is consist of variables, numbers, and mathematical operations (such as addition, subtraction, multiplication, and division).

They can contain one or more variables and can be evaluated for different values of the variables.

For example, the expression 3x + 5y - 2z is an algebraic expression that contains three variables (x, y, and z) and three coefficients (3, 5, and -2) that are multiplied by those variables. Algebraic expressions are commonly used in algebra to represent mathematical relationships and solve problems.

to know more about expression

brainly.com/question/14083225

#SPJ1

The solution in interval notation is; (-∞,  49/2).

Inequality is defined as the relation which makes a non-equal comparison between two given functions.

To solve the equation 5/16x - 7/4 < 3/4x + 21/2, we can simplify both sides:

5/16x - 7/4 < 3/4x + 21/2

Combining like terms:

5/16x  -3/4x  < 21/2 + 7/4

8/16x < 49/4

1/2x < 49/4

Simplifying the fraction;

x < 49/2

Therefore, the solution in interval notation is (-∞,  49/2).

Learn more about Inequality here:

brainly.com/question/20383699

#SPJ1

Answer:

slope change to 1/10 or 0.1 and horizontal shift of positive 6

Step-by-step explanation:

Answer:

m∠1 = 110° and m∠2 = 70°

Step-by-step explanation:

m∠1 = 110° since vertical angles

To find m∠2, m∠1 and m∠2 must add to 180°

m∠1 + m∠2 = 180°

110° + m∠2 = 180°

m∠2 = 70°

Related Question

(a) A person's blood pressure is measured to be 120 ± 2 mm Hg . What is its percent uncertainty? (b) Assuming the same percent uncertainty, what is the uncertainty in a blood pressure measurement of 80 mm Hg?

Answer:

Given equation:

p = 100 + 20 sin(2.5πt)

Part (a)

As:        -1 ≤ sin(x) ≤ 1

Then:   -1 ≤ sin(2.5πt) ≤ 1

So:       -20 ≤ 20 sin(2.5πt) ≤ 20

Therefore:

Maximum value = 100 + 20 = 120

Minimum value = 100 - 20 = 80

Part (b)

The interval between successive maxima is the period.

The period is 2π/B  where B is the coefficient of the independent variable.

⇒ Period = 2π ÷ 2.5π = 0.8

Part (c)

Attached

[Note - you do not need to add the period show in red on the graph when drawing the graph.  This has been added to prove part (b)]

Answer: A,E or F.

Step-by-step explanation: That's the only ones that have X's and then x is 0

Using compound interest, the total amount accrued, principal plus interest, with compound interest on a principal of $3,145.00 at a rate of 4.125% per year compounded 1 times per year over 4.5 years is $3,772.40.

Interest that is accrued on both principal and previous interest is known as compound interest. As a result, it is often referred to as "interest over the interest". Here, the principal is increased by the interest that has already accrued, and the resulting sum serves as the new principal for the subsequent period. i.e., compound interest is equal to interest on the principal plus interest on interest already paid.

First, convert R as a percent to r as a decimal.

r = R/100

r = 4.125/100

r = 0.04125 rate per year,

Then solve the equation for A

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

A = 3,145.00 \((1 + 0.04125)^{4.5}\)

A = $3,772.40

The total amount accrued, principal plus interest, with compound interest on a principal of $3,145.00 at a rate of 4.125% per year compounded 1 times per year over 4.5 years is $3,772.40.

To know more about compound interest, visit:

https://brainly.com/question/14295570

#SPJ1

Answer:

f^-1(x)=1/4x+2

Step-by-step explanation:

y=4x-8

change x and y

x=4y=8

switch sides

4y-8=x

add 8

4y=x+8

divide both sides by 4

y=1/4x+2

substitute f^-1(x) for y

f^-1(x)=1/4x+2

Answer:

Original equation: 6x=216

Divide by 6: x=36

Let me know if this helps!

Answer:

If 216 = 6x then x = 216/6

216/6 = 36

x = 36

Step-by-step explanation:

Answer:

O a=0

Step-by-step explanation:

Answer:

Step-by-step explanation:

The closed circle at (2, -1) means the domain of the rightmost piece is x ≥ 2. That is correctly shown in choices A and C.

The domains of the remaining pieces are continuous, so the gap between -3 and -2 in choice C is inappropriate. The correct choice is A.

__

A function is continuous if you can draw its graph without lifting your pencil. Here, there is a jump discontinuity at x=2, so this function is discontinuous.

Answer:

y = (-3x/5) +1

Step-by-step explanation:

We know that the line passes through the point (-5 , 4)

AND

the slope is given to be -3/5

let's look at the slope a bit more

we know that the formula for slope of a line is Rise / Run

Which means that the rise of this line is -3 after spanning 5 units to the right

Hence, the line goes down 3 units after moving 5 units to the right

We know that to find the equation of a line through the point-slope equation, we need the slope as well as the y-intercept of the line

since we are already given the slope, we need to find the point where the line intersects the y-axis

Now, back to the given point the line passes through

this point has a x - coordinate of -5 and we know that after moving 5 units to the right, the line moves 3 units downwards

So, if the line moves 5 units to the right from the given point, it will reach the y- axis and we know that it's y-coordinate will decrease by 3

Hence, the y-intercept will be 3 units below the given y -coordinate

y - intercept = (4 - 3) =  1 = y-intercept

Now, using the slope-intercept formula to get the equation:

y =  (slope)*x + (y-intercept )

y = (-3/5)x + (1)

y = (-3x/5) + 1

Answer:

The answer is 82 square feet

Step-by-step explanation:

An easy way to do this is to split it into two rectanlges. You can do 10*5 and 8*4 as the dimensions to the two rectangles or you can do 2*4 and 9*8.

I am going to do the first option.

The area of a rectangle is length times width.

Rectangle one can be the one with the dimensions 10 and 5 and the length and width.

Rectangle two can be the one with the dimensions 8 and 4 and the length and width.

Area of rectangle one = 50 feet^2

Area of rectangle two = 32 feet^2

Since we split a large irregular shape into two bits, we must add them together, which results in 82 feet^2.  

Answer:

Almost equals 28°

Step-by-step explanation:

cos(x)= 12/18

x= cos^-1 (12/18)

So it equals 48.1896°

Answer:

100r^4 + 400r^3 + 600r^2 + 400r + 100

Step-by-step explanation:

Expanding ( r + 1 )^4 gives :-

r^4 + 4r^3 + 6r^2 + 4r + 1

So multiplying 100 with r^4 + 4r^3 + 6r^2 + 4r + 1 gives :-

100r^4 + 400r^3 + 600r^2 + 400r + 100

Answer:

12.8

Step-by-step explanation:

Quotient means the answer of two things divided.

62.72/4.9=12.8

Answer:

A

Step-by-step explanation:

as it is a reflection (as in a mirror or in a lake, or ...), the distances from either side of the mirror must be equal.

Answer:

14.4 units²

Step-by-step explanation:

The ratio of Area of rectangle R to area of rectangle S = square of the length of rectangle R to square of lthe ength of rectangle S

Let the area of rectangle S be represented by x, therefore:

40 : x = 8² : 4.8²

40/x = 64/23.04

Cross multiply

x*64 = 40*23.04

64x = 921.6

x = 921.6/64

x = 14.4

Area of rectangle S = 14.4 units²

Answer:

the first term is 4

The value of the missing length to the nearest tenth are;

a. x = 7.5

b. x = 7.8

Pythagoras theorem states that the sum of the squares on the legs of a right triangle is equal to the square on the hypotenuse.

Therefore ;

c² = a²+b²

a. x² = 9²-5²

x² = 81-25

x² = 56

x = √56

x = 7.5 ( nearest tenth)

b. using Pythagoras theorem also!

x² = 6²+5²

x² = 36+25

x² = 61

x = √61

x = 7.8( nearest tenth).

Therefore the value of the missing values are 7.5 and 7.8

learn more about Pythagoras theorem from

https://brainly.com/question/343682

#SPJ1

Answer:

well the sum of all the fraction combined are 2.05, so you could fill 2 1/2 drawers. So technically you could use 3 drawers, but the 3rd one won't be full.

hope that helps

Answer:

This will not produce an unbiased sample

Step-by-step explanation:

Reason for this is that not many people have phones believe it or not, therefore you are discriminating against the people without phones

Answer:

6 3/8

Step-by-step explanation:

2 6/8 + 3 5/8

= (2 + 3) + ( 6/8 + 5/8)

= 5 + (6 + 5)/8

= 5 + 11/8

= 5 + 1 3/8

= 6 3/8

Answer:

it B

Step-by-step explanation:

B stands for ben

like talking ben?

Answer:

c. 7x-2=19

Step-by-step explanation:

1. add 2 to both sides 7x-2(+2)=19+2

2. divide by 7 on both sides7x/7=21/7

3. x=3

There is a 65.54% probability that the average age of those doctors is under 48.8 years.

Science uses a figure called the probability of occurrence to quantify how likely an event is to occur.

It is written as a number between 0 and 1, or between 0% and 100% when represented as a percentage.

The possibility of an event occurring increases as it gets higher.

True mean = mean (or average)+/- Z*SD/sqrt (sample population)

Then,

Mean (average) = 48.0 years

The true mean must be less than 48.8 years.

SD = 6.0 years, and

Sample size (n) = 9 doctors

Using Z as the formula's subject:

Z= (True mean - mean)/(SD/sqrt (n))

Inserting values:

Z=(48.8-48.0)/(6.0/sqrt (9)) = 0.4

From the table of normal distribution probabilities:

At Z= 0.4, P(x<0.4) = 0.6554 0r 65.54%

Therefore, there is a 65.54% probability that the average age of those doctors is under 48.8 years.

Know more about probability here:

https://brainly.com/question/24756209

#SPJ1

Complete question:

The average age of doctors in a certain hospital is 48.0 years old. suppose the distribution of ages is normal and has a standard deviation of 6.0 years. if 9 doctors are chosen at random for a committee, find the probability that the average age of those doctors is less than 48.8 years. assume that the variable is normally distributed.

If the coordinate is reflected over the x-axis, the resulting coordinate point will be at (8, 7)

If the coordinate (x, y) is reflected over the x-axis, the resulting coordinate will be at (x,-y).

Given the coordinate point (8, -7), if the coordinate is reflected over the x-axis, the resulting coordinate point will be at (8, 7)

Learn more on reflection here: https://brainly.com/question/1908648

#SPJ1