Story Problem
Joseph's lunch at a restaurant costs $13.00, without tax. He leaves the
waiter a tip of 15% of the cost of the lunch, without tax. What is the total cost
of the lunch, including the tip, without tax?

Answer:

[tex]b  =  (q,r , 5q-2\sqrt{26} )[/tex]

Step-by-step explanation:

From the question we are told that

The vector given is  

               [tex]a = (5,0,-1)[/tex]

  Also  [tex]comp_a b =  2[/tex]

Generally

       [tex]comp_a b  =  \frac{a \cdot b}{|a|}[/tex]

Here  [tex]|a|[/tex] is the magnitude of  a which is mathematically represented as

      [tex]|a| =  \sqrt{5^2  + 0^2  +(-1)^2 }[/tex]

=>     [tex]|a| =  \sqrt{26}[/tex]

b is vector which we will assume to have the following parameters

     [tex]b  =  (q , r , x)[/tex]

So

        [tex]comp_a b =  \frac{(5,0,-1) \cdot (q,r,x)}{\sqrt{26} } =  2[/tex]

=>     [tex]\frac{5q + 0 -x}{\sqrt{26} } = 2[/tex]

=>     [tex]x =  5q-2\sqrt{26}[/tex]

Hence the vector be can be mathematically represented as

      [tex]b  =  (q,r , 5q-2\sqrt{26} )[/tex]

This means that the vector b is more than one value  since it is made up of variable

This means that if

   [tex]q = 1\\r=1\\x =1[/tex]

Then

    [tex]b  =  (1,1,5-2\sqrt{26} )[/tex]

A quantity has magnitude but not position, that's why in this the vector [tex]b =(0,0, -2\sqrt{26}).[/tex]

If[tex]a =(5,0,-1)[/tex] Our goal is to determine a vector b that will allow comp to work properly [tex]_{a}b = 2.[/tex]

Allow the vector to flow naturally  [tex]b =(x, y,z)[/tex]

Recalling

comp[tex]_{a}b =\frac{a.b}{|a|}[/tex]

Therefore,

comp [tex]_{a}b= 2 \\\\[/tex]

[tex]\to \frac{a.b}{|a|}= 2\\\\[/tex]

[tex]\to \frac{(5,0,-1)\cdot (x,y,z)}{ |(5,0,-1)|} =2\\\\\to \frac{5x+0-z}{5^2+0+(-1)^2}=2\\\\ \to \frac{5x-z}{\sqrt{26}}= 2 \\\\\to 5x-z = 2\sqrt{26}\\\\ \to z=5x-2\sqrt{26}\\\\[/tex]

As a result, the vector b can be expressed as,

[tex]\to b =(x,y,z) =(x, y, 5x-2\sqrt{26}) \\\\[/tex]

As a result, this aforementioned form can be found in an endless number of vectors.

One of them is [tex]b =(0,0, -2\sqrt{26}).[/tex]

Find out more about the vector here:

brainly.com/question/13322477

Answer: Multiplying integers is very similar to multiplying whole numbers. A positive number times a negative number equals a negative number. A negative number times a negative number equals a positive number. A negative number times a positive number equals a negative number.

Answer:

1/-3

Step-by-step explanation:

Answer:

This question does not make sense for very specific reasons

Step-by-step explanation:

1. 5,000 does not look like 5thousand

2. 10 times as many as 5 tens is not really a question at all

3. the question itself already contains the answer 5,000

Answer:

[tex]\huge\boxed{\mathrm{Range = 1.05}}[/tex]

Step-by-step explanation:

Given Data:

2.45 , 3.50 , 2.89 , 2.99

Arrange it in ascending order.

2.45 , 2.89 , 2.99 , 3.50

Range = Highest No - Lowest No.

Range = 3.50 - 2.45

Range = 1.05

Answer:

Range=largest value-smallest value

Range=2.99-2.45

Range=0.54

Step-by-step explanation:

hope it is helpful for you

if it is please follow

Answer:

Step-by-step explanation:

[-6 + -3      -2 + 2    2 + 1} =   [-9   0   3}

Answer: 6 hours

Step-by-step explanation:

You have to divide 360 by 60 minutes.

Answer:

There are 360 minutes in 6 hours.

Hope this helps :)

Answer:

   -1    

Step-by-step explanation:

Given that:

r = sin 2θ  , θ = ± π/4 , ± 3π/4

Recall that:

x = r cosθ

y = r sinθ

The  differential of y with respect to x

[tex]\dfrac{dy}{dx} = \dfrac{\dfrac{dy}{d \theta}}{\dfrac{dx}{d \theta}}[/tex]

[tex]\dfrac{dy}{dx} =\dfrac{\dfrac{dy}{d \theta}}{\dfrac{dx}{d \theta}} = \dfrac{ r cos \theta + sin \theta* \dfrac{dr}{d \theta} } {\dfrac{dr}{d \theta} *cos \theta- sin \theta \ r}[/tex]

at  θ = π/4  , r = sin π/2

r = 1

[tex]\dfrac{dy}{dx} = \dfrac{ r cos \theta + 2 cos (2 \theta)*sin \ \theta } {2 \ cos (2 \theta) *cos \theta- sin 2 \theta * sin \theta}[/tex]

where;

θ = π/4

[tex]\dfrac{dy}{dx} = \dfrac{ 1 \times cos (\dfrac{\pi}{4}) + 2 cos (\dfrac{\pi}{2})*sin (\dfrac{\pi}{4}) } {2 \ cos (\dfrac{\pi}{2})*cos (\dfrac{\pi}{4})- sin (\dfrac{\pi}{2}) * sin (\dfrac{\pi}{4})}[/tex]

[tex]\dfrac{dy}{dx} = \dfrac{\dfrac{1}{\sqrt{2}}+0 }{0-1 * \dfrac{1}{\sqrt{2}}}[/tex]

[tex]\dfrac{dy}{dx} = \dfrac{\dfrac{1}{\sqrt{2}} }{- \dfrac{1}{\sqrt{2}}}[/tex]

[tex]\mathbf{\dfrac{dy}{dx} =-1}[/tex]

slope of the curve (dy/dx) at theta(θ)  = pi/4 is -1

Answer:

0.2

Step-by-step explanation:

Step 1:

20 divided by 100 = 0.2

Answer:

0.2

If you want to get a decimal from a percent you need to divide the percent by 100.

Hope This Helps :)

Remember all decimal are basicaly,

x% = (x)/(100)

so

20%=(20)/(100)=0.20

Answer:

Step-by-step explanation:

5        y

_   =   _

11       6

Cross multiply to get:

11y = 30

y = 2.7272

y = 2.7

Answer:

[tex] \boxed{ \bold{ \boxed{ \sf{domain = { (- 2 \: , \: 1 \: , \: 3)}}}}}[/tex]

[tex] \boxed{ \bold{ \boxed{ \sf{range = ( \: - 2 \: , \: 0 \: , \: 4)}}}}[/tex]

Step-by-step explanation:

Domain is the set of all x values.

Range is the set of all y - values.

{ ( - 2 , 0 ) , ( 1 , -2 ) , ( 3 , 4 )}

Domain = { -2 , 1 , 3 }

{ ( -2 , 0 ) , ( 1 , -2 ) , ( 3 , 4 )}

Range = { - 2 , 0 , 4 }

Hope I helped!

Best regards! :D

Answer:

2/10

Step-by-step explanation:

-5+7=2, since the denominator stays the same.

2/10, simplified is 1/5

Answer:

2/10 or 1/5

Step-by-step explanation:

Because -5/10 and 7/10 both have 10 as the denominator we don't have to do anything about that, so you just add and simplify.

If you need me to go through it in depth let me know, but I hope that helps!

Have a great day!

Answer:

m + 188 = 232

Step-by-step explanation:

sum → +

m + 188 = 232

Answer:

m + 188 = 232

Thats is an equation for your problem

Answer:

radius = 1.37 cm

height = 2.71 cm

Step-by-step explanation:

We are given volume = 16 m³.

Formula for volume of a cylinder is;

V = πr²h

Thus,

πr²h = 16

h = 16/πr²

Now formula for the surface area is;

S = 2πr² + 2πrh

Putting 16/πr² for h gives;

S = 2πr² + 2πr(16/πr²)

S = 2πr² + 2π(16/πr)

S = 2π(r² + 16/πr)

To minimize, we will find the derivative of S and equate to zero

S' = 2π(2r - 16/πr²) = 0

4πr - 32/r² = 0

4πr = 32/r²

r³ = 32/4π

r = ∛(32/4π)

r = 1.37 cm

From h = 16/πr²;

h = 16/(π × 1.37²)

h = 2.71 cm

Answer:

5

Step-by-step explanation:

Step 1:

3x + 4 = 19

Step 2:

3x = 19 - 4

Step 3:

3x = 15

Answer:

x = 5

Hope This Helps :)

Answer:

16

Step-by-step explanation:

A = 2; S = 4

3A + 2.5S =

= 3(2) + 2.5(4)

= 6 + 10

= 16

Answer:

15mg/ml

Step-by-step explanation:

Percent mass per volume ( % m/v) is unit expression that tells us how many grams of a solute that we can find 100 ml of a particular solution.

In the above question, we are asked to express 1.5%w/v Bepotastine besilate (BEPREVE) ophthalmic solution as mg/mL

Step 1

1.5% w/v = 1.5 g of Bepotastine besilate (BEPREVE) in 100ml ophthalmic solution

Hence, if

100ml = 1.5g

1 ml = y g

We Cross Multiply

100ml × yg = 1 ml × 1.5g

yg = 1 ml × 1.5g/100ml

= 0.015g

Therefore, in 1 ml we have 0.15 g.

Step 2

Since we are asked to express as mg/ml

We convert 0.015g to mg

1 gram = 1000 milligrams

0.015 grams =

Cross Multiply

0.015grams × 1000 milligrams/ 1 gram

= 15 mg

Therefore, the concentration in mg/ml of 15% m/v of Bepotastine besilate (BEPREVE) ophthalmic solution is 15mg/ml

━━━━━━━━━━━━━━━ ♡ ━━━━━━━━━━━━━━━  

Of the United States, true, you are in the south.

Texas is a southern state of the USA.

Of the world, false, you are more north than south, and also you are around the middle north of the world.

The pictures I attached are maps of the USA and the world.

As you can see in the USA map, Texas is one of the states are are the lowest.

But if you look at the world map, Texas is not very south.

━━━━━━━━━━━━━━━ ♡ ━━━━━━━━━━━━━━━  

Answer:

[tex]=2(2x-5)(x+1)[/tex]

Step-by-step explanation:

So we have the trinomial:

[tex]4x^2-6x-10[/tex]

First, factor out a 2:

[tex]=2(2x^2-3x-5)[/tex]

Now, factor within the parentheses.

To do so, we want to find two numbers. When multiplied, these two numbers must equal (a)(c) and when added, they must equal b

(a)(c) is 2(-5) or -10 and b is -3. So, we want two numbers that when multiplied together gives -10 and when added gives -3.

-5 and 2 works. Therefore:

[tex]=2(2x^2-3x-5)[/tex]

Replace -3x with 2x and -5x:

[tex]=2(2x^2+2x-5x-5)[/tex]

Factor out a 2x for the first two terms. And factor out a negative 5 for the remaining two:

[tex]=2(2x(x+1)-5(x+1))[/tex]

Grouping:

[tex]=2(2x-5)(x+1)[/tex]

And we're done!

Answer: Between about 31 and 33 dollars per month

Step-by-step explanation:

Answer:

-0.74

Step-by-step explanation:

The computation of Z is shown below:

According to the question, data provided in the question is as follows

P(Z >  Z) = 0.23

Based on the above information, the calculation for Z is

Use the table of the standard normal distribution for z

By using this the Z value comes is -0.74

hence, in case of the standard normal distribution, the value of z is -0.74 and the same is to be considered

Answer:

[tex]f(-1) = \frac{5}{2}[/tex]

[tex]f(0) = 5[/tex]

[tex]f(2) = 20[/tex]

Step-by-step explanation:

Given

[tex]f(x) = 5(2^x)[/tex]

Required

Determine f(-1); f(0) and f(2)

Solving f(-1)

In this case, we simply take x as;

[tex]x = -1[/tex]

Substitute -1 for x in [tex]f(x) = 5(2^x)[/tex]

[tex]f(-1) = 5(2^{-1})[/tex]

Apply law of indices

[tex]f(-1) = 5 * \frac{1}{2}[/tex]

[tex]f(-1) = \frac{5}{2}[/tex]

Solving f(0)

In this case, we simply take x as;

[tex]x = 0[/tex]

Substitute 0 for x in [tex]f(x) = 5(2^x)[/tex]

[tex]f(0) = 5(2^0)[/tex]

[tex]f(0) = 5(1)[/tex]

[tex]f(0) = 5[/tex]

Solving f(2)

In this case, we simply take x as;

[tex]x = 2[/tex]

Substitute 2 for x in [tex]f(x) = 5(2^x)[/tex]

[tex]f(2) = 5(2^2)[/tex]

[tex]f(2) = 5(4)[/tex]

[tex]f(2) = 20[/tex]

Answer:

  [0, 7]

Step-by-step explanation:

We want the height to be greater than or equal to 32 ft, so ...

  704 +16t -16t^2 ≥ 32

  t^2 -t -42 ≤ 0 . . . . . . . . . . . subtract 32, divide by -16

  (t -7)(t +6) ≤ 0

This inequality will be true for values of t between -6 and +7. Since we're only concerned with times t ≥ 0, the appropriate solution interval is ...

  0 ≤ t ≤ 7 . . . . [0, 7] in interval notation

Answer:

$3 each

Step-by-step explanation:

Minus the $2 from $11 gives you $9. So $9÷3=$3 per candy bar.

Answer:

y = 3/4x -3

Step-by-step explanation:

[tex]3x-4y=12\\[/tex]

Move 3x to the right and change its sign

[tex]-4y = -3x+12[/tex]

Divide both sides of the equation by -4

[tex]\frac{-4y}{-4} =\frac{-3x}{-4} + \frac{12}{-4} \\\\y = \frac{3}{4} x -3[/tex]

Answer:

The slope is undefined.

The graph will be a vertical line.

Step-by-step explanation:

just did it

The graph will be a vertical line. Option C is correct.

Given that,
The slope of the line is zero we have to determine what are the conditions.

The slope of the line is a tangent angle made by line with horizontal. i.e. m =tanx where x in degrees.

The process in mathematics to operate and interpret the function to make the function or expression simple or more understandable is called simplifying and the process is called simplification.

Here,
The slope of the line is zero,
m = 0
tanФ = 0
y / x = 0
for the above condition, Δy must be zero or Δx must be infinite and the line will be a verticle.

Thus, the graph will be a vertical line. Option C is correct.

Learn more about slopes here:
https://brainly.com/question/3605446

#SPJ2

Answer:

3x^2+6x

Step-by-step explanation:

3x(x+2)

First distribute the 3x

You end up with

(3x^2+6x)

and that is the answer.

Answer:

2.5

Step-by-step explanation:

multiply -5 by -1/2

Answer:

[tex]Number = 2.71 * 10^{-7}[/tex]

Step-by-step explanation:

Given

[tex]Number = 0.0000002711[/tex]

Required

Write, using scientific notation

The scientific notation is written in the form:

[tex]Form = a * 10^n[/tex]  Where n is an integer and [tex]1 \leq a \leq 10[/tex]

To start with; Represent the given number as fraction

[tex]Number = \frac{2711}{10000000000}[/tex]

Represent the denominator as an exponent

[tex]Number = \frac{2711}{10^{10}}[/tex]

This can be rewritten in form of:

[tex]Number = 2711 * 10^{-10}[/tex]

Remember that: [tex]Form = a * 10^n[/tex]  Where n is an integer and [tex]1 \leq a \leq 10[/tex]

This implies that; we need to adjust 2711 to a number between 1 and 10;

This gives:

[tex]Number = 2.711 * 1000 * 10^{-10}[/tex]

Write 1000 as an exponent

[tex]Number = 2.711 * 10^3 * 10^{-10}[/tex]

Apply law of indices

[tex]Number = 2.711 * 10^{3-10}[/tex]

[tex]Number = 2.711 * 10^{-7}[/tex]

The question requires 2 numbers after the decimal point;

So, 2.711 will be approximated to 2.71

[tex]Number = 2.71 * 10^{-7}[/tex]

Hence;

[tex]0.0000002711[/tex]  is equivalent to [tex]2.71 * 10^{-7}[/tex]

Answer:

$153.00

Step-by-step explanation:

A = $1,353.00

(I = A - P = $153.00)

Equation:

A = P(1 + rt)

Calculation:

First, converting R percent to r a decimal

r = R/100 = 4.25%/100 = 0.0425 per year.

Solving our equation:

A = 1200(1 + (0.0425 × 3)) = 1353

A = $1,353.00

The total amount accrued, principal plus interest, from simple interest on a principal of $1,200.00 at a rate of 4.25% per year for 3 years is $1,353.00.

Answer:

$153

Step-by-step explanation:

Simple Intrest = P ( money invested ) * R ( percentage ) * T ( year )

I = P * R * T / 100

I = 1200 * 4.25 * 3 = 15300 / 100 = $153

This is the easiest method for me and I hope it helps :)