what is 8 - 7 1/4 i need the answer fast

Answer:

9x2-y2 + 8xy -1

Step-by-step explanation:

9x2 -1 - y2 +8xy

9x2-y2 + 8xy -1

The sum of these two given quadratic function is (9x² - y² + 8xy - 1).

A quadratic function is a function that has a variable with the highest power of the variable is 2.

A quadratic function may contain more than one variable. However, the highest degree of any variable must be 2.

Given, two function are 8x² + 12 - y² and x² - 13 + 8xy.

Therefore, the sum of these two given function are:

(8x² + 12 - y²) + (x² - 13 + 8xy)

=  8x² + x² - y² + 8xy +12 - 13

= 9x² - y² + 8xy - 1

Learn more about quadratic function here: https://brainly.com/question/5975436

#SPJ2

Answer:

Oil is not renewable because it uses fossil fuels from dinos, which do not exist anymore, so they are limited

Step-by-step explanation:

Answer: 165.78 < μ < 180.22

Step-by-step explanation: Confidence Interval of a mean is a method to estimate the true population mean, i.e., we can get an interval where the true mean exists.

A confidence interval is calculated as

x ± [tex]z\frac{\sigma}{\sqrt{n} }[/tex]

z is z-score for 99% confidence, which is: z = 2.58

Then, the estimate is

173 ± [tex]2.58\frac{28}{\sqrt{100} }[/tex]

173 ± 2.58*2.8

173 ± 7.224

lower limit: 173 - 7.224 = 165.78

upper limit: 173 + 7.224 = 180.22

The 99% confidence interval of the mean is between 165.78 and 180.22 and it means that the true mean of this population is between those numbers with 99% of confidence.

Answer:

0.75

Step-by-step explanation:

Answer: 36 = dividend

48 = divisor or if ur doing other way 0.75

Step-by-step explanation:

Answer:

23

Step-by-step explanation:

Answer:

1.5 = 150%

.15 = 15%

.01 = 1%

.1 = 10%

Please give brainliest

Answer:

1.5 = 150%

.15 = 15%

.01 = 1%

.1 = 10%

Step-by-step explanation:

Answer:

D. Every rational number is also an integer

Step-by-step explanation:

Some rational numbers are integers, but not all of them

Answer:

Step-by-step explanation:

hjyr  kiknbvcctt t

Answer:

mateo has more cards

Step-by-step explanation:

1/2 is greater than 1/4 because 1/4 is 1/2 of a 1/2

Answer:

Step-by-step explanation:

Answer:

The answer is 888,889,013,321

Step-by-step explanation:

Hope it's answer you plz mark as Brainlist

Answer:

50%

Step-by-step explanation:

Long division

Answer:

50%

Step-by-step explanation:

To find the percent, divide 75 by 150 and multiply by 100:

75/150

= 0.5

0.5(100)

= 50

So, 50% of the customers ordered coffee

Answer:

D) 9/2

Step-by-step explanation:

Answer:

(4.1) Equation Form: x = 4 , y = 1

Answer: (4,1)

Step-by-step explanation:

Hope this helps! Enjoy your day!

Answer:

1

Step-by-step explanation:

Substitute 3 for x and 2 for y:

3^2 - 2(3)(2) + 2^2

= 9 - 12 + 4

= 1

3^2−(2)(3)(2)+2^2

3^2−(2)(3)(2)+2^2

= 1

Answer:

11

need more characters

Answer:

First option: 3 blocks to the right, 5 blocks down

Step-by-step explanation:

Hope it helps.....

Answer:

Step-by-step explanation:

20% of 207.77 = 41.554

1% of 207.77 = 2.0777

21% of 207.77 = 41.554+2.007=43.6317

207.77+43.6317 = 251.4017

Round to 2 decimal places because its money = 251.40

Answer:

D.

Step-by-step explanation:

Answer: D.

this is the correct answer! pls give the other person who answered before me brainiest! (trying to help em out lol)

Answer:

I think the answer is 45

Answer:

(x, y) = {(20, 1.3), (40, 2.6), (60, 3.9), (80, 5.2), (100, 6.5)}

Graph C represents the table of values

Step-by-step explanation:

To complete the table, substitute each value of x into the equation, [tex] y = 0.065x [/tex], to find each corresponding y-value.

Thus:

✔️When x = 20:

[tex] y = 0.065x [/tex]

[tex] y = 0.065(20) [/tex]

[tex] y = 1.3 [/tex]

✔️When x = 40:

[tex] y = 0.065x [/tex]

[tex] y = 0.065(40) [/tex]

[tex] y = 2.6 [/tex]

✔️When x = 60:

[tex] y = 0.065x [/tex]

[tex] y = 0.065(60) [/tex]

[tex] y = 3.9 [/tex]

✔️When x = 80:

[tex] y = 0.065x [/tex]

[tex] y = 0.065(80) [/tex]

[tex] y = 5.2 [/tex]

✔️When x = 100:

[tex] y = 0.065x [/tex]

[tex] y = 0.065(100) [/tex]

[tex] y = 6.5 [/tex]

✔️The graph of that represents this table of values is graph C. See attachment.

Answer:

D

Step-by-step explanation:

because it's going down by 4 not going up so it would represent -4

Answer:

I believe the answer is B I had a question like this as well i'm pretty sure its B

Step-by-step explanation:

Answer:

Step-by-step explanation:

Step one

Given the coordinates

ABCD with vertices A(−4, 2), B(8,2), C(11, 7), and D(-1, 7).

AB=(−4, 2), (8,2)

BC=(8,2), (11, 7)

CD=(11, 7),(-1, 7)

DA=(-1, 7),(-4,2)

The distance between points AB=

[tex]AB= \sqrt (x_2-x_1)^2+(y_2-y_1)^2[/tex]

[tex]AB= \sqrt (8+4)^2+(2-2)^2\\\\AB= \sqrt 12^2+(0)^2\\\\AB= \sqrt144\\\\AB=12[/tex]

The distance between points BC=

[tex]BC= \sqrt (11-8)^2+(7-2)^2\\\\BC= \sqrt 3^2+(5)^2\\\\BC= \sqrt34\\\\BC=5.8[/tex]

The distance between points CD

[tex]CD= \sqrt (-1-11)^2+(7-7)^2\\\\CD= \sqrt -12^2+(0)^2\\\\CD= \sqrt144\\\\CD=12[/tex]

The distance between points DA

[tex]DA= \sqrt (-4+1)^2+(2-7)^2\\\\DA= \sqrt -3^2+(-5)^2\\\\DA= \sqrt34\\\\DA=5.8[/tex]

Hence the perimeter of the footpath= 12+5.8+12+5.8

=35.7

Hey there! I'm happy to help!

The Greatest Common Factor is self-explanatory: it is the largest factor that both numbers have in common. Let's look at the factors of each of these numbers:

30: 1, 30, 2, 15, 3, 10, 5, 6

45: 1, 45, 3, 15, 5, 9

We see that the largest number they both have in common is 15, so the GCF is 15.

Have a wonderful day! :D

Answer:

x = 42.67

Step-by-step explanation:

Answer:

x < 3

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Equality Properties

Step-by-step explanation:

Step 1: Define Inequality

3x + 1 < 10

Step 2: Solve for x

Here we see that any value x smaller than 3 would work as a solution to the inequality.