Evaluate 3x2-xy + 3y2 when x=2 and y=-2

Answers

Answer 1

Answer:

The answer would be 20

Step-by-step explanation:

3(22)−(2)(2)+3(22) = 20


Related Questions

Which graph represents 2x − 5y ≥ − 20

Answers

Answer:

Go to desmos and it will answer literally all of your graphing questions. Just type in desmos graphing calculator.

Step-by-step explanation:

The local newspaper has letters to the editor from 50 people. If this number represents 2​% of all of the​ newspaper's readers, how many readers does the newspaper​ have?

Answers

Answer: The newspaper has 2500 readers.

Step-by-step explanation:

Given: The local newspaper has letters to the editor from 50 people.

This is the 2% of all newspaper readers.

Let x be the number of all newspaper readers.

Then. 2% of x= 50

[tex]\Rightarrow\ 0.02x=50\ \ [\text{To remove }\% \text{we divide number by 100}]\\\\\Rightarrow\ x=\dfrac{50}{0.02}=\dfrac{5000}{2}=2500\\\\\Rightarrow x=2500[/tex]

Hence, the newspaper has 2500 readers.

Find the x-intercept and the y-intercept for the equation 3x + 6y = 24

Answers

Answer:

x-intercept is 8

y-intercept is 4

Step-by-step explanation:

3x + 6y = 24 ( subtract 3x on both sides)

6y = -3x + 24 (divide by 6 on both sides)

y = -3/6x + 4 or

y = -1/2x + 4

The y-intercept is 4

To find the x-intercept set y as 0

0 = -1/2x + 4 (we have to get -4)

-1/2*8 = -4

0 = -4 + 4

0 = 0

x-intercept is 8

HOPE THIS HELPS!

En una ferretería venden bombas de llenado de agua, (suben el agua de una cisterna a un tinaco). Una característica importante de estás es la dimensión de los tubos que se usan, ya que, dependiendo de la medida de su diámetro, depende también el tiempo en llenar un tinaco. Cada bomba tiene una velocidad constante de salida del agua. Completa la siguiente tabla, usando la proporcionalidad inversa.

Answers

Answer:

I dont now what is that?????

Identify the function shown in this graph.

Answers

The answer is A . hope this helps

whats the LCM of 8 and 12 using a venn diagram​

Answers

Answer:

4

Step-by-step explanation:

Answer:

24

Step-by-step explanation:

LCM of 8 and 12 is 24. please refer the picture for venn diagram

What is the slope-intercept equation for the line below?

A) y = 5/4x - 4
B) y = 4/5x - 4
C) y = -4/5x - 4
D) y = -5/4x - 4​

Answers

Answer:

A) y = 5/4x - 4

Step-by-step explanation:

Slope-intercept formula

y = mx + b, where m = slope, b = y-intercept

Slope formula

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

Given points (on the graph)

(0, -4) and (4, 1)

Slope is:

m = (1 - (-4))/(4 - 0) = 5/4

y-intercept is

-4 as per the first point

So the line is:

y = 5/4x - 4

Correct answer option is: A) y = 5/4x - 4

Answer:

it is a very very easy sum!

Step-by-step explanation:

goooooood afternoon

A bottle of eye drops has 0.45 fluid ounces of liquid. Part A How much liquid is in 104 bottles of eye drops? 4,500 fluid ounces 450 fluid ounces 0.0045 fluid ounce 0.00045 fluid ounce 00:00 Part B How does the decimal point move when 0.45 is multiplied by 104? 00:00 The decimal point moves two places to the left. 00:00 The decimal point moves two places to the right. 00:00 The decimal point moves four places to the left. 00:00 The decimal point moves four places to the right.

Answers

The required solution of the given numeral are,
(A) 10⁴ bottles contain 4500 ounces of eye drops. Opion A is correct.
(B) Decimal point moves 4 places to the right. Option D is correct.

What is simplification?

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,
(a)
A bottle of eye drops has 0.45 fluid ounces of liquid.
Now, 10⁴ bottles of eye drops have,
= 10⁴ × 0.45 = 4500 ounces of eye drops.

(b)
When 10⁴ multiplied by 0.45, the decimal located former of 4 will shift itself after 4 digits right so the answer will be 4500.


Thus, Solutions of the given numeral has been given above.

Learn more about simplification here:

https://brainly.com/question/12501526

#SPJ5

14 out of 56 people at a high school basketball
game ordered hotdogs. What percent of people did
not order hotdogs?

Answers

Answer:

75%

Step-by-step explanation:

[tex]\frac{14}{56} *100=25[/tex]

100-25=75

56-14= 42
42/56= .75
.75 x 100= 75%

Simplify (-56) ÷ 7.
A. 9
B. -9
C. 8
D. -8​

Answers

It equals -8 (D) pls mark as brainliest

Is this congruent by SSS, SAS, AAS, ASA?

Answers

Answer:

sss

Step-by-step explanation:

Answer:

Then amswer is SSS.

Step-by-step explanation:

Hope rhis helps

Carter has 43 coins, all nickels and dimes in his piggy bank. The value of the coins is $3.65. How many dimes does Carter have?

Answers

the value of 43 and 3.65 is you use kfc chicken because when you angry or very mad you need some kfs chicken bye.

Round 458,329 to the nearest thousand

Answers

Answer:

458,000

Step-by-step explanation:

Answer:

Step-by-step explanation:

All we need to know here is place value. Here is an example.

458,329

4 = hundred thousandths

5 = ten thousandths

8 = thousandths

3 = hundredths

2 = tenths

9 = ones

The thousands is 8,329. Rounded to the nearest thousand would be 8,000. Five hundred is the lowest it could be to round to 9,000.

458,329 rounded to the nearest thousand would be 458,000.

Have a great day!

Please help me with my homework!!!!

Answers

Answer:

see below

Step-by-step explanation:

-(5)² = -1 * 5² = -1 * 25 = -25

List ascending order:

  -5.3 x 10² = -5.3 x 100 = -530

  -50

  [tex]\frac{1}{2} = 0.5[/tex]

  [tex]\sqrt{25} = 5[/tex]

  {-5.3 x 10², -50, [tex]\frac{1}{2}[/tex], [tex]\sqrt{25}[/tex]}

Describe [tex]\sqrt{8}[/tex]: Real, Irrational

List descending order:

  [tex]\sqrt{72} = 8.485[/tex]

  6

  [tex]\pi = 3.14159[/tex]

  [tex]-\frac{3}{4} = -0.75[/tex]

  {[tex]\sqrt{72}[/tex], 6, [tex]\pi[/tex], [tex]-\frac{3}{4}[/tex] }

George loan:

  Principal * rate * time = Interest

  2000 * .034 * 2 = 136

  Principal + Interest = Payback

  2000 + 136 = $2,136

Toy:

  100% - 15% = 85%

  .85 * 4.99 = $4.24

Paige rode her bike 4/5 mile. Megan rode her
bike 0.67 miles. Which girl rode the greatest
distance?

Answers

Answer:

Paige

Step-by-step explanation:

If you divide 4/5 you get 0.8

08. is larger than 0.67

what is the slope of the line with the equation y-3= -1/2(x-2)?
a. -2
b.-1/2
c.1/2
d.2

Answers

Answer: m = -1/2

Step-by-step explanation:y=mx + b to find slope m m =

BRAINLIEST! Right answer fastest!

Answers

Answer:

B

Step-by-step explanation:

I used an A.I.

4. Add. 2a + 8 + 4b + 5

Answers

Answer:

Step-by-step explanation:

2a + 4b + 8 + 5

2a + 4b + 13


The local newspaper has letters to the editor from 60 people. If this number represents 5% of all of
the newspaper's readers, how many readers does the newspaper have?
The newspaper has
readers

Answers

the newspaper has 1200 readers because if 60 people is only 5%

if you divide 95 by 5 it is 19. 19 times 60 equals 1140. 1140 plus 60 equals 1200. 5% of 1200 is 60.

Answer:

i believe the answer is 1200

Step-by-step explanation:

if you set up a proportion

60 over x equal to 5 over 100 and solve

you get the answer 1200.

I NEED HELP WITH THIS PLZ HELP ME WITH MATH! I"M GIVING 20 points for someone who answers it. PLZ HELP ME WITH MATH!

Answers

This is the answerrrrr

Answer:   [tex]\frac{x^8}{256y^{20}}[/tex]

If the font is too small, it says x^8 all over top 256y^20 as one big fraction.

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

Work Shown:

[tex]\left(\frac{5x^3}{20xy^5}\right)^4\\\\\\\left(\frac{x^2}{4y^5}\right)^4\\\\\\\frac{\left(x^2\right)^4}{(4^1)^4\left(y^5\right)^4}\\\\\\\frac{x^{2*4}}{4^{1*4}y^{5*4}}\\\\\\\frac{x^{8}}{4^{4}y^{20}}\\\\\\\frac{x^{8}}{256y^{20}}\\\\\\[/tex]

Write the rational number as a decimal -3 4/9

Answers

Answer:-3.4

Step-by-step explanation:

Graph this line using the slope and y-intercept

[tex]y = \frac{1}{4} x + 9[/tex]

Answers

This is the best I could do. Hope this helps!

4. John is packing books into boxes. Each box can hold either 15 small books or 8
large books. He needs to pack at least 35 boxes and at least 350 books, Write a
system of linear inequalities to represent the situation

Answers

Answer:

Your system of inequalities is:

x + y ≥ 35

15x + 8y ≥ 350

Step-by-step explanation:

Let x = number of boxes of small books and let y = number of boxes of large books.

 Since John needs to pack at least 35 boxes:

 (number of boxes of small books) + (number of boxes of large books) (is at least) 35

x + y ≥ 35

Since John needs to pack at least 350 books:

 (number of small books packed) + (number of large books packed) (is at least) 350

(number of small books per box)(number of boxes of small books) + (number of large books per box)(number of boxes of small books) ≥ 350

15x + 8y ≥ 350

hey amos- maryclaire.k i need 20 characters so here's a smiley face :)

Answers

Answer:

Thank you! :)

How old are you though?

A small wading pool had 10 inches of water in it.

It rained and the water level went up 1 inch.

Then the water level went down 3 inches after children splashed some water out.

Which of the following best represents the level of water in the wading pool?

Answers

Answer:

8 inches is left in the pool

15 points anyone ???? Hurry

Answers

The answer is (-4, -2). the rule for rotating 180 degrees is (-x, -y)

How much will be in your savings account if you invested $250 at 6.3% interest compounded semiannually after 8 years

Answers

Answer:

$664.47

Step-by-step explanation:

A = P(1+i/m)^mn

A = 250(1+0.063/2)^2*8

A = 250(1.063)^16

A = 250*2.657861

A = $664.46525

A = $664.47

WILL GIVE BRAINLIEST!

Answers

Answer:

idk

Step-by-step explanation:

ask oggle

select the ratios whos simplest form is 8/7

Answers

do you have a picture of the answer choices ?

HELP I NEED THIS RIGHT NOW

Answers

Answer:

5/12 gallons

Step-by-step explanation:

Answer:

1 Gallon

Step-by-step explanation:

Okay, This is easy!

She is using 1/6 gallon of Lemonade and 1/4 of fruit juice. All we need to do is simply add them together and we get 1/10. 1/10 is the same as 1 Gallon.

Hope this helps,

PumpkinSpice1♥

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