somebody help please i'll mark brainliest

(x + 8)(x - 5)

= x (x - 5) + 8(x - 5)

= x² - 5x + 8x - 40

= x² + 3x - 40 (a)

Shelby save 30% by purchasing the coat on sale.

What is mean by Percentage?

A number or ratio that can be expressed as a fraction of 100 or a relative value indicating hundredth part of any quantity is called percentage.

Given that;

Shelby purchased a coat for $101.50 that was regularly priced at $145.

Now,

Since, The regular price of coat = $145

And, The purchased coat = $101.50

Hence, Save money = $145 - $101.50

                                = $43.5

So, The percent of save money = $43.5 / $145  x 100

                                                 = 30%

Thus, Shelby save 30% by purchasing the coat on sale.

Learn more about the percent visit:

https://brainly.com/question/24877689

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Answer:

5 sided

Step-by-step explanation:

An interior angle of a regular polygon has a measure of 108°. It is a 5 sided polygon known as pentagon.    

Each interior angle of the polygon is 108 degrees, so each exterior angle of the polygon is 180-108 = 72 degrees.

Answer:

6.40  

i dont know what it meant by Compare your answer with the estimate answer 9.

Step-by-step explanation:

8.8*2÷2.752=6.40

Answer:

12

jeff sdjjncdascjodscsdcsdcsd

Answer:

I think it is 4.25

Step-by-step explanation:

I multiplied 4 and 4 to get 16 and subtracted that

Answer:

-42

i used a calculator and subtracted by 6. 6 times

Answer:

5 per week

Step-by-step explanation:

5 + 5 = 10

Answer:

2.67 rounded to the nearest hundredth

Step-by-step explanation:

8/3 = 2.67 est gallons per minute

gallon÷minutes=rate per minute

Answer:

y = -4x + 12

Step-by-step explanation:

-8x - 2y = -24

Add '2x' to both sides

  -2y = 8x - 24

Divide the entire equation by (-2)

[tex]\dfrac{-2y}{-2}=\dfrac{8x}{-2}-\dfrac{24}{-2}\\\\[/tex]

y = -4x + 12

Answer:

-3

Step-by-step explanation:

So they are essentially giving you x, so you replace it with -3.

H(-3) = 2/3 (-3) -1

2/3 × -3 = -2

-2 - 1 = -3

H(-3) = -3 ⬅This is a true statement.

Hope this helps :)

Answer:

  z ≈ -0.92

Step-by-step explanation:

Put the numbers in place of the corresponding variables and do the arithmetic.

  [tex]z=\dfrac{\hat{p}-p}{\sqrt{\dfrac{pq}{n}}}=\dfrac{\dfrac{495}{1708}-0.30}{\sqrt{\dfrac{0.30(1-0.30)}{1708}}}=\dfrac{495-0.30(1708)}{\sqrt{1708(0.30)(0.70)}}=\dfrac{-17.4}{\sqrt{358.68}}\\\\\boxed{z\approx -0.92}[/tex]

Answer:

  $1309.94

Step-by-step explanation:

The formula for the account value with interest compounded is ...

  A = P(1 +r/n)^(nt)

where P is the principal invested at rate r compounded n times per year for t years.

Using P=1000, r=0.045, n=365, t=6, we find the account balance to be ...

  A = 1000(1 +0.045/365)^(365·6) ≈ 1309.94

Maxine's balance will be $1309.94 at the end of 6 years.

_____

Additional comment

In most 6-year periods, there will be two leap years. In a leap year, n=366 instead of 365. The difference between the effective standard year rate and the effective leap year rate can be seen in the 8th decimal place of the multiplier. The numbers in this problem only have 6 significant figures, so there is no need to try to account for leap years.

A proper accounting for the leap years would add just under 0.002 cents to the balance for a $1000 investment. If the original deposit were $1,000,000, then a proper leap-year accounting would add 2¢ to the balance after 6 years.

Answer:

10000 total possible PIN numbers.

Answer:

9.42

Step-by-step explanation:

Step-by-step explanation:

\begin{gathered}p = \pi \: r \\ \end{gathered}p=πr

=3.14 × 3ft

=9.42 ft

Answer:

Actually, it would be 21% or (by rounding) 20% because it's a whole number.

Step-by-step explanation:

3x  

you just add everything

Mathematics includes the study of such topics as numbers, formulas and related structures, shapes and spaces in which they are contained, and quantities and their changes. There is no general consensus about its exact scope and its epistemological status.

Have a luvely day!

Answer:

Mathematics is the science and study of quality, structure, space, and change. Through abstraction and logical reasoning mathematics evolved from counting, calculation, measurement, and the systematic study of the shapes and motions of physical objects.

Step-by-step explanation:

It is a easy fun learning subject if it is studied with interest.

Answer:

927.3 feet per hour

Step-by-step explanation:

first determine how many seconds are in one hour

there are 60 seconds in one minute and 60 minutes in one hour

so there are 60x60, or 3600 seconds in one hour

now you can create a proportion of inches/seconds = inches/seconds

let 'x' = inches per hour

34/11 = x/3600

cross-multiply to get:

11x = 3600x34

11x = 122,400

x = 122,400/11

x = 11,127.3 inches per hour

to determine how many feet per hour you must divide 11,127.3 inches by 12

this equals 927.3 feet per hour

Answer:

5 + x = 21

Step-by-step explanation:

5 more than a number is 21. Write it in an equation.

5 + x = 21

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

Answer:

5+x=21

Step-by-step explanation:

A number 5 is the number added to the variable "X".

----> x+5=21. Hence “5 more than a number is 21. ” written as an algebraic expression is “x+5”.

So a number 5 more than x is 21 means that if you add x+5, you recive 21

Hope it helps!!

Answer:

well im not sure what your asking try asking it in different words

Step-by-step explanation:

Answer:

x²(x+4)+5(x+4)

Step-by-step explanation:

(x³+4x²)+(5x+20)

x²(x+4)+5(x+4)

Answer:

b

Step-by-step explanation:

Answer: C

Step-by-step explanation:

slope = (y2 - y1) / (x2 - x1)

          = (2 - 4) / (-1 - 3)

          = -2 / -4

          = 1/2

Answer:

No function to look at.  Please add the functions

Step-by-step explanation:

Answer:

This is a problem of 2 equations with 2 unknowns.

A general equation of a line is y = mx + b, and in this case the unknowns I refer to are m and b.

Since 2 points on the line are given, I can plug one of those into the equation to come up with an equation in 1 unknown; then use the 2nd point to determine the last unknown.

So…using (5,2), 2 = 5m + b or b = 2 - 5m.

Now, using this value for b, I use the 2nd point (-5,7), as follows:

7 = -5m + 2 - 5m or -10m = 5, so…m = -1/2

If b = 2 - 5m, then b = 4 1/2

So the equation of the line Vikas is looking for is:

y = -1/2 x + 4 1/2

Step-by-step explanation:

Answer:

m - a - b  =   c

Step-by-step explanation:

m    =   a + b + c                      

  -a  =  -a                Add -a from both sides

m - a     =    b + c

       -b  =   -b         Add -b from both sides

m - a - b =   c

Answer:

41.04 $

Step-by-step explanation:

We Know,

Simple Interest= Principle× Rate of Interest× Time

or, 456× 3/100× 3

or, 456× 0.03× 3

or, 41.04

Therefore, Simple Interest is 41.04 $