What is 73 - 4.5= Can you please write the explanation

(a) Recall that

[tex]\dfrac{\mathrm d[\sin^{-1}x]}{\mathrm dx}=\dfrac1{\sqrt{1-x^2}}[/tex]

[tex]\dfrac{\mathrm d[\ln x]}{\mathrm dx}=\dfrac1x[/tex]

[tex]\dfrac{\mathrm d[\sqrt x]}{\mathrm dx}=\dfrac1{2\sqrt x}[/tex]

Then by the chain rule,

[tex]y=\sin^{-1}(\sqrt x)+\ln(\sqrt x)[/tex]

[tex]\implies\dfrac{\mathrm dy}{\mathrm dx}=\dfrac{\mathrm d[\sin^{-1}(\sqrt x)+\ln(\sqrt x)]}{\mathrm dx}[/tex]

[tex]=\dfrac1{\sqrt{1-(\sqrt x)^2}}\dfrac{\mathrm d[\sqrt x]}{\mathrm dx}+\dfrac1{\sqrt x}\dfrac{\mathrm d[\sqrt x]}{\mathrm dx}[/tex]

[tex]=\dfrac1{2\sqrt x\sqrt{1-x}}+\dfrac1{2(\sqrt x)^2}[/tex]

[tex]=\dfrac1{2\sqrt{x-x^2}}+\dfrac1{2x}[/tex]

[tex]=\boxed{\dfrac{x+\sqrt{x-x^2}}{2x\sqrt{x-x^2}}}[/tex]

(b) I'll assume [tex]\log x[/tex] refers to the logarithm of base [tex]e[/tex]. Recall that

[tex]\dfrac{\mathrm d[e^x]}{\mathrm dx}=e^x[/tex]

[tex]2^x=e^{\log2\,x}\implies\dfrac{\mathrm d[2^x]}{\mathrm dx}=e^{\log2\,x}\dfrac{\mathrm d[\log2\,x]}{\mathrm dx}=\log2\cdot2^x[/tex]

Then using the chain rule and implicit differentiation, we get

[tex]e^y=2^x\log x-e^{2x}[/tex]

[tex]\implies e^y\dfrac{\mathrm dy}{\mathrm dx}=\dfrac{\mathrm d[2^x]}{\mathrm dx}\log x+2^x\dfrac{\mathrm d[\log x]}{\mathrm dx}-e^{2x}\dfrac{\mathrm d[2x]}{\mathrm dx}[/tex]

[tex]e^y\dfrac{\mathrm dy}{\mathrm dx}=\log2\cdot2^x\log x+\dfrac{2^x}x-2e^{2x}[/tex]

[tex]\dfrac{\mathrm dy}{\mathrm dx}=\dfrac{\log2\cdot2^x\log x+\frac{2^x}x-2e^{2x}}{e^y}[/tex]

[tex]\dfrac{\mathrm dy}{\mathrm dx}=\dfrac{\log2\cdot2^x\log x+\frac{2^x}x-2e^{2x}}{2^x\log x-e^{2x}}[/tex]

[tex]\dfrac{\mathrm dy}{\mathrm dx}=\boxed{\dfrac{\log2\cdot2^xx\log x+2^x-2xe^{2x}}{x(2^x\log x-e^{2x})}}[/tex]

If instead [tex]\log x=\log_{10}x[/tex] denotes the base 10 logarithm, you need only make the following adjustment:

[tex]\log x=\dfrac{\ln x}{\ln 10}\implies\dfrac{\mathrm d[\log_{10}x]}{\mathrm dx}=\dfrac1{\ln10\,x}[/tex]

where [tex]\ln x[/tex] is logarithm of base [tex]e[/tex].

Answer:

128

Step-by-step explanation:

32 x 4 = 128

o

32 + 32 + 32 + 32 = 128

Step-by-step explanation:

Range = highest value - lowest value

=25 – 12

= 13

First Quartile = 15

Third Quartile = 22

Interquartile = 7

Answer:

a) 7

b) 15

c) 13

d) 22

Answer: (0,0)

Step-by-step explanation:

When x is 0  then input 0 into the equation for x and solve for y.

y = -3(0)

y = 0

So x is 0 and y will also be zero so we will have the ordered pair (0,0)

Answer:

The ordered pair is (0,0)

Step-by-step explanation:

y=-3x

Let x = 0

y = -3*0

y = 0

The ordered pair is (0,0)

Answer:

V = 150π units^3

Step-by-step explanation:

The volume of this cylinder is V = πr²h = π(5 units)^2·(6 units), or

V = 150π units^3

The volume of the given cylinder as shown in the diagram is 150π cube units or 471 cube units.

The volume of a solid is the total space it contains in the three-dimensional space.

The volume of a cylinder can be given by the formula,

V = πr²h cube units,

where V is the volume, r is the radius of the base of the cylinder, and h is the height of the cylinder.

In the question, we are asked to find the volume of the cylinder shown in the figure.

The cylinder has a base radius (r) of 5 units, and height (h) of 6 units.

So, we can find its volume using the formula,

V = πr²h cube units,

where V is the volume, r is the radius of the base of the cylinder, and h is the height of the cylinder.

∴ The volume of the cylinder = π(5²)6 cube units

or, the volume of the cylinder = π*25*6 cube units

or, the volume of the cylinder = 150π cube units

or, the volume of the cylinder = 150*3.14 cube units = 471 cube units.

∴ The volume of the given cylinder as shown in the diagram is 150π cube units or 471 cube units.

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Answer:

ASA

SSA

Step-by-step explanation:

The law of sines states that;

a/sin A = b/sin B = c/sin C

Where a,b,c are sides of the triangle and A,B,C are sides corresponding to those angles.

Hence we can use the sine rule when;

I) two angles and one side are given

2) two sides and an angle are given

Not that sine rule applies to triangles that are not right angled triangles.

Answer: The word phrase for this expression is the last option, "The sum of the quotient of d and 5 and 2." d is being divided by 5, so we would use "quotient of d and 5" for that part, and then we would add the "sum" because d/5 is being added to 2.

To find the area of the arena, you will need to find the areas of the rectangular spaces and the 2 semicircles. Because the formulas are given, I will just substitute in the values and show the work for finding the areas.

To find the perimeter, you will look at the distances of lines that take you around the space. Because two of these spaces are half circles, you will need to find the circumference of the full circle.

Also, the answers need to be given in meters, so all units given in centimeters will be divided by 100 to convert them to meters.

Perimeter:

C= 3.14 x 20 m

C = 62.8 meters

62.8 + 8 + 25 + 8 + 5 + 8 + 10 + 8 + 40= 174.8 meters for the Perimeter

Area:

A = 25 x 8

A = 200 square meters

A = 10 x 8

A = 80 square meters

A = 20 x 40

A = 800 square meters

A = 3.14 x 10^2

A = 314 square meters

Total Area: 314 + 800 + 80 + 200= 1394 square meters

Answer:

87 women

Step-by-step explanation:

4x+3x=203

7x=203

x=29

29*3=87 :D

Answer:

1.375

Step-by-step explanation:

I recommend using a calculator. Divide 3/8. Add 1 back.

The decimal value of 1(3/8) is 1.375.

A fraction is written in the form of a numerator and a denominator where the denominator is greater that the numerator.

Example: 1/2, 1/3 is a fraction.

We have,

1(3/8)

This can be written as,

11/8

Now,

11/8 = 1.375

Thus,

The decimal value of 1(3/8( is 1.375.

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Answer:

YES

Step-by-step explanation:

$157+$210+$377+$145=$889

$695+$95=$790

Leftover

$889-$790 =$99

he would have $99 leftover

The amount left over with Jean is given by the equation A = $ 99

Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.

It demonstrates the equality of the relationship between the expressions printed on the left and right sides.

Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.

Given data ,

Let the amount left over be represented as A

Now , the equation will be

The cost of basic computer is = $ 695.00

The cost of printer is = $ 95.00

The amount saved in month of May = $ 157.00

The amount saved in month of June = $ 210.00

The amount saved in month of July = $ 377.00

The amount saved in month of August = $ 145.00

The total amount saved = $ 157.00 + $ 210.00 + $ 377.00 + $ 145.00

The total amount saved = $ 889

The total cost of computer and printer = $ 695 + $ 95

The total cost of computer and printer = $ 790

The amount of money left over with Jean A = total amount saved - total cost of computer and printer

Substituting the values in the equation , we get

The amount of money left over with Jean A = $ 889 - $ 790

The amount of money left over with Jean A = $ 99

Therefore , the value of A is $ 99

Hence , the amount left over is $ 99

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The translation of the given graph has done in two steps.

1. Horizontal shift of 5 units to the left

2. Vertical shift of 4 units in the downwards direction.

"The translation of a graph is its rigid movement, vertically or horizontally."

The given translation of graph is:

[tex]y = (x - 6)^{2} + 7[/tex] to [tex]y = (x - 1)^{2} + 3[/tex]

Here, two types of translation has done to the first graph.

1. First of all, there is a horizontal shift of 5 units to the left has done.

[tex]y = (x - 6)^{2}[/tex] ⇒ [tex]y = [(x - 1) - 5)]^{2}[/tex]

2.After that, there is a vertical shift of 4 units in the downwards direction.

[tex]y = (x - 6)^{2} + 7[/tex]  ⇒ [tex]y = (x - 1)^{2} + 3[/tex]

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Answer:

x = 57

Step-by-step explanation:

x−53 = 4

Add 53 to each side

x-53+53 = 4+53

x = 57

Answer:

x = 57

Step-by-step explanation:

x−53 = 4

x (- 53 + 53) = 4 + 53

x = 57

Answer:

10

Step-by-step explanation:

The most number of questions answered correctly are 10 and 11.

The typical number of questions a student answered correctly can be represented by the middle most value that is common to the data set.

If the data set is distributed evenly, the median, or the middle most value will fall on the 15th and 16th dots, which represents 10 correct correct challenge questions answered.

The typical number is 10.

Answer:

[tex]10[/tex]

Answer:

see below

Step-by-step explanation:

First, she should subtract 6 from both sides of the inequality. This makes it so that the x terms are on one side and the non-x terms are on the other side so she can then solve for x by multiplying the entire inequality by 2.

Answer:

Step-by-step explanation:

We are to prove the cofunction Identity using the Addition and Subtraction Formulas. [tex]tan(\pi/2 - u) = cot (u)[/tex]

From trigonometry identity, [tex]tan x = sinx/cosx[/tex], starting from right hand side of the equation, the expression above will become;

[tex]tan(\pi/2 - u) = \dfrac{sin(\frac{\pi}{2}-u )}{cos(\frac{\pi}{2}-u) }........ \ 1 \\\\from\ quadrant;\\\\sin(\frac{\pi}{2}-u) = cos (u) \ and \ cos(\frac{\pi}{2}-u) = sin(u)[/tex]

Substituting this trigonometry identities into equation 1 we will have;

[tex]tan(\pi/2 - u) = \dfrac{cos(u)}{sin(u)}[/tex]

Since cot(u) = 1/tan(u) = cos(u)/sin(u), hence;

[tex]tan(\pi/2 - u) = \dfrac{cos(u)}{sin(u)} = cot(u)\\\\tan(\pi/2 - u) = cot (u)\ Proved![/tex]

Answer:

1.29 for 1 pack

Step-by-step explanation:

5.16/4=1.29

Answer:

So Jeff is faster with 7 km per hour

Step-by-step explanation:

Jeff says I can run 7 kilometers per hour!

Cameron says "I can run 100 meters per minute!!

To actually know which one of them is the fastest we will convert their speed to be in the same unit

Let's convert meters per minute to kilometers per hour

100 meters per minute= 100 M/m

100 meters per minute= 100 *60/1000

100 meters per minute= 6000/1000

100 meters per minute= 6 km /h

100 meters per minute= 6 kilometers per hour

So Jeff is faster with 7 km per hour

Answer:

Jeff is faster than Cameron. Khan Academy

Step-by-step explanation:

Answer:

$65.04

Step-by-step explanation:

Given:

Total amount left by the customer on table = $80

It contains cost of the food + 15% tip + 8% sales tax.

Sales tax and tip are calculated from the cost of food.

To find:

Cost of the food = ?

Solution:

Let the cost of food = $[tex]x[/tex]

As per given question statement:

Tip = 15% of [tex]x[/tex]

Sales Tax = 8% of [tex]x[/tex]

Money left on table = Cost of food + Tip + Sales tax

$80 = [tex]x[/tex] + 15% of [tex]x[/tex] + 8% of [tex]x[/tex]

Now, let us solve the equation:

[tex]\$80 = x + 15\%\ of\ x + 8\%\ of\ x\\\Rightarrow 80 = x + \dfrac{15}{100} \times x + \dfrac{8}{100} \times x\\\Rightarrow 80 = \dfrac{100x + 15\times x + 8\times x}{100}\\\Rightarrow 80 = \dfrac{123x}{100}\\\Rightarrow 80 \times 100= 123x\\\Rightarrow x = \dfrac{8000}{123}\\\Rightarrow \bold{x = \$65.04}[/tex]

Therefore, the cost of food, rounded off to nearest cent is $65.04.

Answer:

Step-by-step explanation:

The cost of the food as x, the tips as 0.15, and the tax as 0.08x. Then setting up and solving the equation x+0.15x+0.08x=80.

Answer:

8

Step-by-step explanation:

1/2(6+18)-2^2

=1/2(24)-4

=12-4

=8

Complete Question

The complete question is shown on uploaded image

Answer:

The  correct option is  B  

Step-by-step explanation:

The reason the correct answers is [tex]NumCyl \ and\ HPMax[/tex]  is because from the table  we see that the 95% confidence interval for [tex]NumCyl \ and\ HPMax[/tex]  does not contain zero

Which means the [tex]NumCyl \ and\ HPMax[/tex]   differ form zero in a two-tailed  test

Answer:

the 2 is in the hundreds and hundredths place

Answer:

hi i have the same question and im super confused, what was your answer for that question?

Step-by-step explanation:

Answer:

5 calories

Step-by-step explanation:

Answer:

Divisor

Step-by-step explanation:

Given

[tex]a\ mod\ n[/tex]

Required

What does n represents

In arithmetic, the number that divides another is referred to as divisor;

Take for instance;

[tex]5\ mod\ 3 = 2[/tex]

This implies that when 5 is divided by 3, the remainder is 2

The bold text (divided by 3) means that 3 is the divisor of 5;

When compared to [tex]a\ mod\ n[/tex]

We have that

n = 3

Reason being that, n and 3 are in the same position base on order of appearance;

Hence, n represents the divisor

Answer:

Step-by-step explanation:

if the fraction is (4/9)*7 then the answer =28/9

if the fraction is 4/(9*7) then the answer is 4/63

Answer:

D.)22

Step-by-step explanation:

D. 22 people has an average of 4000 or more than 4000 steps each day.

To find an average sum up the weights of each individuals and divide by no. of individuals.

From the given diagram

2 people has an average of 0 to 1999 steps.

5 people has an average of 2000 to 3999 steps.

12 people has an average of 4000 to 5999 steps.

7 people has an average of 6000 to 7999 steps.

3 people has an average of 8000 to 9999 steps.

We have been asked how many people has an average of 4000 or more steps.

∴ ( 12 + 7 + 3) people has 4000 or more average steps each day.

= 22 people.

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Answer:

C. -2

Step-by-step explanation:

You have to look at the factor in front of the x after normalizing the equation in to y = ax + b. In other words, find a.

y+2 = -2(x-3) =>

y = -2x + 6 - 2

y = -2x + 4

a = -2

b = 4

Answer:

C. -2

Step-by-step explanation:

Bringing the equation to slope-intercept form of y = mx + b, where m is a slope:

Correct answer choice: C. -2

Question:

Based on a survey, assume that 28% of consumers are comfortable having drones deliver their purchases. Suppose that we want to find the probability that when five consumers are randomly selected, exactly three of them are comfortable with delivery by drones.

Identify the values of n, x, p, and q.

Answer:

[tex]n = 5[/tex]

[tex]x = 3[/tex]

[tex]p = 0.28[/tex]

[tex]q = 0.72[/tex]

Step-by-step explanation:

Given

Proportion of customers that prefer drone = 28%

Selected customers= 5

Customers expected to prefer drone = 3

Required

Determine the value of n, x, p and q

In probability; n represents the selected sample;

So;

[tex]n = 5[/tex]

The expected number of people to prefer drone is represented by x;

So;

[tex]x = 3[/tex]

In probability, opposite probabilities add up to 1

i.e.

[tex]p + q = 1[/tex]

Where p is the given probability;

[tex]p = 28\%[/tex]

Convert to decimal

[tex]p = 0.28[/tex]

Substitute 0,28 for p in the above equation

[tex]p + q = 1[/tex] becomes

[tex]0.28 + q = 1[/tex]

Make q the subject of formula

[tex]q = 1 - 0.28[/tex]

[tex]q = 0.72[/tex]

Answer:

c is the square of half of b

Step-by-step explanation:

A quadratic equation can be written in the following form:

[tex]ax^2+bx+c[/tex].

Based off of the information provided, we can test to see if which answer choice is correct.

OPTION A IS INCORRECT:

Although, for [tex]x^2+6x+9[/tex], c is 1.5 times b, we do not see that relationship reflected in other equations, such as [tex]x^2+10x+25[/tex] and [tex]x^2+12x+36[/tex].  There must be a different relationship.

OPTION B IS INCORRECT:

Although c is double b for x^2+8x+16, this rule is not applicable for the rest of the equations. C is double b for the  is 1.5 times that of b for x^2+6x+9, and for and for x^2+10x+25, c is 2.5 times b, and for x^2+12x+36, c is 3 times of b.

OPTION C IS CORRECT:

We can test this relationship based off of the information given.

for x^2+6x+9, c equals (6/2)^2 which is 9

for x^2+8x+16, c equals (8/2)^2 which is 16

for x^2+10x+25 c equals (10/2)^2 which is 25

and finally, for x^2+12x+36 c equals (12/2)^2 which is 36.

OPTION D IS INCORRECT:

C is not the square of B.

for x^2+6x+9, b^2 which is 36 (c here is 9)

for x^2+8x+16, b^2 is 64 (c here is 16)

for x^2+10x+25 b^2 is 100 (c here is 25)

and finally, for x^2+12x+36 b^2 is 144 (c here is 36).

Answer:

B.

Step-by-step explanation:

96x90x120x1= 1,036,800

Answer:

Hey there!

The wealthy person can have 96x90x120 different outfits, and that is 1036800 combinations.

Let me know if this helps :)