What is the best approximation of a 15% tip on a $38 car wash?

Answer:

Area= 56 cm²

Step-by-step explanation:

Figure given is a rhombus

Area= 1/2*d1*d2

Answer:

y=-2x

Step-by-step explanation:

y-4=-2(x-(-2))

y-4=-2(x+2)

y-4=-2x-4

y=-2x-4+4

y=-2x

Answer:

Answer is 50%

Step-by-step explanation:

Zoo that featured for 10 lion exhibits.

And Zoo featured for 20 exhibits in total.

Now, let's find the percent of zoo's exhibit featured for lions.

We can write it as

x=[tex]\frac{10}{20} *100%[/tex]

Simplify it

x=50%

Answer:

A congruence statement says that two polygons are congruent.

Step-by-step explanation:

To write a congruence statement, list the corresponding vertices in the same order.

Answer:

6/55

Step-by-step explanation:

[tex]\frac{2}{5}*\frac{3}{11}=\frac{2*3}{5*11}=\frac{6}{55}[/tex]

Answer:

916.57 pounds

Step-by-step explanation:

Cost of beef = 7.53 pounds × 9

= 67.77 pounds

Cost of potatoes = 6.45 pounds × 9

= 58.05 pounds

Cost of carrots = 6.23 pounds × 4

= 24.92 pounds

Total cost = 67.77 pounds + 58.05 pounds + 24.92 pounds

= 150.74 pounds

Total revenue = 27 meals × 39.53 pounds

= 1067.31 pounds

Total profits = Total revenue - Total cost

= 1067.31 pounds - 150.74 pounds

= 916.57 pounds

Answer:

x = 5

Step-by-step explanation:

To get the value of x we will use similar triangles as shown;

AT/AG = AB/AC

9/3 = x+10/3x-10

Cross multiply

3(x+10) = 9(3x-10)

3x + 30 = 27x - 90

Collect like terms

3x - 27x = -90 - 30

-24x = -120

x = 120/24

x = 5

Hence the value of x is 5

Answer:

20

Step-by-step explanation:

60% of a hundred is 60, and since 50 is half of that I just halfed sixty too, so decrease 50 by 30

Answer:

390 I think

Step-by-step explanation:

Answer:

I wont hurt you!

Step-by-step explanation:

Answer: Next lyric: I don't know why you're not there

I give you my love, but you don't care

Step-by-step explanation:

Answer:

2/5

Step-by-step explanation:

Answer:

i think it's 2/5 not sure tho

Answer:

B

Step-by-step explanation:

all 3 angles of a triangle must equal 180 degrees, so if it tell you that there is a 68 degree angle, and a 90 degree angle(because if the right angle), then the last angle must be 22, because 180-(68+90)=22

Answer:

(x-9) (x=2)

Step-by-step explanation:

Answers:

======================================================

Explanation:

Part (a)

The horizontal portion is shown to be 87.3 cm long. This is the result after rounding has occurred. Specifically, rounding to one decimal place (tenths). The question is: What could the number have been before rounding?

You have to think in reverse of the usual rounding process.

The values 87.25, 87.26, 8.27, ... 8.33, 87.34 all round to 87.3 when we round to one decimal digit. Note the hundredths digit is increasing by 1 each time. We can see that 87.34 is the largest possible value for the horizontal piece. After that, 87.35 will round to 87.4 which is just out of reach.  

Through similar logic/reasoning, the vertical side can be at most 51.84 cm.

The area of the rectangle could be 87.34*51.84 = 4527.7056 which is the upper bound for the area. This is the largest possible area, given the values in the diagram, since we made each value as large as possible.

In short, 4527.7056 square cm is the max area.

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

Part (b)

We use the idea of part (a), but we'll use the smallest possible values this time.

So we go with 87.25 for the horizontal portion and 51.75 for the vertical portion.

Compute the perimeter with these smallest dimensions.

P = 2*(length + width)

P = 2*(87.25 + 51.75)

P = 278

The smallest perimeter possible is 278 cm which is the lower bound of the perimeter. This is guaranteed to be the smallest perimeter possible because we made the sides as small as possible, while staying in the restrictions as discussed in the previous section.

Answer:

Positive

Step-by-step explanation:

Two positive integers multiplied will always be positive.

Answer:

Positive

Step-by-step explanation:

two positive will always be a positive because of the rule of multiplication

Create a poster or transparency that shows the two different methods that your team used to find the area of the regular hexagon in part (b) of problem 8-43. Then, as you listen to other teams present, look for strategiesthat are different than yours. For each one, consider the questions below. •Which geometric toolsdoes this method use? •Would this method help find the area of other regular polygons (like a pentagon or 100-gon)?8-45. Which method presented by teams in problem 8-44 seemed able to help find the area of other regular polygons? Discuss this with your team. Then find the area of the two regular polygons below. If your method does not work, switch to a different method. Assume Cis the center of each polygon.a. b. 8-46. So far, you have found the area of a regular hexagon, nonagon, and decagon. How can you calculate the area of anyregular polygon? Write a Learning Log entry describing a general process for finding the area of a polygon with nsides. 8-47. Beth needs to fertilize her flowerbed, which is in the shape of a regular pentagon. A bag of fertilizer states that it can fertilize up to 150 square feet, but Beth is not sure how many bags of fertilizer she should buy. Beth does know that each side of the pentagon is 15 feet long. Copy the diagram of the regular pentagon below onto your paper. Find the area of the flowerbed and tell Beth how many bags of fertilizer to buy. Explain how you found your answer. 15 ft 5 C 11 C

Answer:

Una matriz hermitiana, o también llamada matriz hermítica, es una matriz cuadrada con números complejos que tiene la característica de ser igual a su traspuesta conjugada.

A=A^*  

Donde A^* es la matriz traspuesta conjugada de A.

Step-by-step explanation

Ejemplo de matriz hermitiana de orden 2×2

₍ 5.............  3+7i₎

₍3-7i .............2

₎

Ejemplo de matriz hermitiana de dimensión 3×3

(3............2-i......-5i)

(2+i............0.....9-5i)

(5i.........9+5i.....6)

Answer: B and E are irrational numbers

Answer:

it b

Step-by-step explanation:

Answer:

0

Step-by-step explanation:

please view the attachment: y=0

Answer:

64 is the right answer of your question

Answer:

2

Step-by-step explanation:

To find the slope given two points you do [tex]\frac{y2-y1}{x2-x1}[/tex]

so we just plug in the y values and x values

[tex]\frac{-7-5}{-2-4}[/tex]

[tex]-7-5=-12[/tex]

[tex]-2-4=-6[/tex]

[tex]\frac{-12}{-6} =2[/tex]

Therefore the slope is 2

Answer:

a) -9

b)-9

Step-by-step explanation:

a) - 4 - 5

Subtract 5 from -4 to get -9.

-9

factor: ( - 1) × 32

b) - 2 - 7

Subtract 7 from -2 to get -9.

-9

( - 1) × 32

Answer:

mine is wrong go to the other guy its c

Answer:

C. -2x < 5

Step-by-step explanation:

-2(8) < 5

-16 < 5

-16 is less than 5 so it is true.

Answer:

49.0197m

Step-by-step explanation:

The formula is d = c / π, allow d to be diameter and c to be circumference

Answer:

Step-by-step explanation:

The fractions need a common denominator before you can add them together.

The least common denominator is 15bc.

Answer:

Step-by-step explanation:

Are the volumes equal?      No, so throw out the first and the last one.

Is the volume of the pyramid greater than the volume of prism?  

                                            No, so throw out the third one

so by inspection it must be the remaining one

or mathematically

    vol pyramid = (1/3)(base)(height)

    vol prism     =  (base)(height)

              vol pyramid   /   vol prism      

           (1/3)(base)(height) / (base)(height)   = 1/3

Answer:

15.73

Step-by-step explanation: I just kinda guessed and got it right.

You need to pay $15.73  per hour to employees in next two years.

A ratio or value that may be stated as a fraction of 100 is called a percentage. And it is represented by the symbol '%'.

Given:

Wages have been rising at 6% per year in your area.

Next year, you need to pay employees,

= 14 + 14 x 6/100

= $14.84

Again next year,

you need to pay = 14.84 + 14.84 x 6/100

= $15.73

Therefore, the wage is $15.73 per hour to employees.

To learn more about the percentage;

https://brainly.com/question/24159063

#SPJ6

Answer:

(x + 1)² = 7

Step-by-step explanation:

Given:

-2x = x² - 6

We'll start by rearranging it to solve for zero:

x² + 2x - 6 = 0

The first term is already a perfect square so that's fine.  Normally, if that term had a non-square coefficient, you would need to multiply all terms a value that would change that constant to a perfect square.

Because it's already square (1), we can simply move to the next step, separating the -6 into a value that can be doubled to give us the 2, the coefficient of the second term.  That value will of course be 1, giving us:

x² + 2x + 1 - 1 - 6 = 0

Now can group our perfect square on the left and our constants on the right:

x² + 2x + 1 - 7= 0

x² + 2x + 1 = 7

(x + 1)² = 7

To check our answer, we can solve for x:

x + 1 = ± √7

x = -1 ± √7

x ≈ 1.65, -3.65

Let's try one of those in the original equation:

-2x = x² - 6

-2(1.65) = 1.65² - 6

- 3.3 = 2.72 - 6

-3.3 = -3.28

Good.  Given our rounding that difference of 2/100 is acceptable, so the answer is correct.