What should be subtracted from -8xy + 2x^2 + 3y^2 to get x^2 + 2

Answers

Answer 1

Answer:

x^2 - 8xy + 3y^2 - 2

Step-by-step explanation:

(-8xy + 2x^2 + 3y^2) - unknown = x^2 + 2

- unknown = x^2 + 2 + 8xy - 2x^2 - 3y^2

- unknown = -x^2 + 8xy - 3y^2 + 2

Unknown = x^2 - 8xy + 3y^2 - 2

Check:

(-8xy + 2x^2 + 3y^2) - (x^2 - 8xy + 3y^2 - 2)

= -8xy + 2x^2 + 3y^2 - x^2 + 8xy - 3y^2 + 2

= -8xy + 8xy + 2x^2 - x^2 + 3y^2 - 3y^2 + 2

= x^2 + 2


Related Questions

Pls help it due ASAP and show workings

Answers

Answer:

it's 70°

Step-by-step explanation:

well first by vertical angles we know that

[tex]\angle BAC = \angle DAE\\\\\angle DAE = 4x+6[/tex] ( I don't know how to put the symbol xd)

and given we know that

[tex]\angle EAF = \angle EAD = 4x+6[/tex]

solving for x

we know that

[tex]\angle CAD = 180\\\\\angle CAB + \angle ABD = 180\\\\4x+6+6x+14=180\\\\10x+20=180\\\\10x=160\\\\x=16[/tex]

and now for [tex]\angle EAF[/tex]

[tex]\angle EAF = 4x+6\\\\\angle EAF = 4(16)+6\\\\\angle EAF = 64+6\\\\\angle EAF = 70[/tex]

Find the measure of the indicated angle that makes line u and b parallel

Answers

7. 73 degrees
8. 113 degrees
i got the same answer!!

(3x+10y=54 and x=y+5 )

Answers

Answer:

y=3 x=8

Step-by-step explanation:

What is the length of segment AB?

A) 2
B)2.5
C) 5
D) 10

Answers

It’s 10. Explanation: AB is parallel to DE and AB is twice the size of DE so 5x2=10

ASAp question in pic

Answers

Answer:

B and E

Step-by-step explanation:

They have different slopes so of course they will have to intersect at least 1 time. And if they were curved, it would be more than 1. But these are lines so it would be just 1 intersection. So B is one of the answers.

The solutions of the system are x = 0 and y = 2

I hope this helped, please mark me brainliest!

Step-by-step explanation:

y = 2x + 2 and y = 6x + 2

=> 2x + 2 = 6x + 2

=> 2x = 6x

=> 4x = 0, x = 0.

Therefore y = 2(0) + 2 = 2.

The point of intersection is (0, 2).

Hence there is exactly 1 point of intersection and exactly 1 real solution. (B and E)

A gym charges a one time sign-up fee of $10.25 and then $5 each time you go. A student paid a total of $137.25. How many times did the student go to the gym?

Answers

Answer:

25.4 or 25 times

Step-by-step explanation:

137.25-10.25=127

127/5=25.4

Help please, will mark you brainliest (Only if the answer is correct)

Answers

Answer:take numbers first, the Lcm is 24

Consider x, the highest power is 2

y, the highest power is 3

and z has 2 as its highest power.

:. The lcm is 24 x^2y^3z^2

Step-by-step explanation:

Answer:

this is me with another account, adding another anser just to mark you brainliest lol

Step-by-step explanation:

Can someone tell me what the answer is and how u solve it?

Answers

What is the question I’m not sure if its just me but I can’t see it? If you can put the question in the comments i’m willing to help :)!

Answer:

y-6=-2(x-6)

y-6=-2x+12

y= -2x+6

6 is the line crossing on the y axis (B from y=mx+b)

and -2/1 is slope so 2 below and 1 right HOPE THIS HELPED

Step-by-step explanation: (IDC ABOUT THE THINGY HERE :D)


Work out the percentage change when a price of £400 is decreased to £225

Answers

Answer:

1.77%.

Step-by-step explanation:

The answer is 1.77%.

HOPE THIS IS CORRECT AND HELPS YOU!!!

Answer:

1.75%

Step-by-step explanation:

1.75%is correct answer

Convert 0.263 repeating (the 63 are repeating) into a fraction.

Answers

Answer:

[tex]\frac{29}{110}[/tex]

Step-by-step explanation:

We require 2 equations with the repeating 63 placed after the decimal point

let x = 0.2636363.... ( multiply both sides by 10 and 1000 )

10x = 2.6363... → (1)

1000x = 263.6363.... → (2)

Subtracting (1) from (2) eliminates the repeating value, that is

990x = 261 ( divide both sides by 990 )

x = [tex]\frac{261}{990}[/tex] = [tex]\frac{29}{110}[/tex] ← in simplest form

The number n = 0.263 as a fraction is A = 263/999

What is a Fraction?

An element of a whole is a fraction. The number is represented mathematically as a quotient, where the numerator and denominator are split. Both are integers in a simple fraction. A fraction appears in the numerator or denominator of a complex fraction. The numerator of a proper fraction is less than the denominator.

Given data ,

Let the number be represented as n = 0.263

Now , the Let x = 0.263636363 repeating

Multiply both sides by 1000 to move the decimal point to the right:

1000x = 263.636363 repeating

Subtract x from both sides:

999x = 263

Divide both sides by 999:

x = 263/999

Hence , 0.263636363 repeating is equivalent to the fraction 263/999

To learn more about fractions click :

https://brainly.com/question/29766013

#SPJ2

REALLY EASY MATHS QUESTION PLS HELP
(I think it easy lol)

Answers

Answer:

no.2 no.5

Step-by-step explanation:

i don't know how to explain

have a good rest of your day

Answer:

question (1) c^2=a^2+b^2

Step-by-step explanation:

pythagoras theorem

Can you help with both questions please :)

Answers

Answer:

X(4x+x^2)

Step-by-step explanation:

First the LCM is x

Now just distribute

hiii please help! i’ll give brainliest if you give a correct answer tysm!

Answers

Answer: 3/16

Step-by-step explanation:

Reduce the expression, if possible, by cancelling the common factors.

The cost of a hamburger is $1.15 more than an order of large fries bill bought two hamburger ms and an order of large fries for a total of $8.60 what is the price of each item

Answers

Answer:

The cost of an order of large fries is [tex]\$ 2.10[/tex] and the cost of a hamburger is [tex]\$3.25[/tex].

Step-by-step explanation:

Let the cost of an order of large fries be [tex]\$ x[/tex].

Then, the cost of a hamburger is [tex]\$ x+\$1.15[/tex].

Bill bought two hamburgers and an order of large fries for a total of [tex]\$ 8.60[/tex].

So, [tex]2(x+1.15)+x=8.60[/tex]

[tex]\Rightarrow 2x+2.30+x=8.60[/tex]

[tex]\Rightarrow 3x=8.60-2.30[/tex]

[tex]\Rightarrow 3x=6.30[/tex]

[tex]\Rightarrow x=\frac{6.30}{3}[/tex]

[tex]\Rightarrow x=2.10[/tex]

So, the cost of an order of large fries is [tex]\$ 2.10[/tex].

And, the cost of a hamburger is [tex]\$2.10+\$1.15=\$3.25[/tex].

Hence, the cost of an order of large fries is [tex]\$ 2.10[/tex] and the cost of a hamburger is [tex]\$3.25[/tex].

A laundry basket has 24 t shirts in it four are navy 12 are red and the remaining are white.what the probability of not selecting a white shirt

Answers

Based on the information given, there’ll be 8 white t-shirts in the laundry basket so we need to exclude that from the rest since we’re looking for a chance of NOT getting a white t-shirt, that’ll give us 16 out of 24 which is 66%

Jessica deposited $5000 in a simple interest account 4 years ago. She has earned $680 in interest so far. What is the interest rate for this account?

Answers

Answer:

$170

Step-by-step explanation:

every year she got $170 interested


Rewrite the following sentence as an equation.
The product of three and the sum of a number and
two is zero.

Answers

Answer:

3(2+x)=0

Step-by-step explanation:

Here are some vocab words:

Product: Multiplication

Sum: Addition

"A number": x

3(2+x)=0

Need help on this please and thank you

Answers

Answer:

(1,9)

Step-by-step explanation:

1,9





xxxxxxx that is the answer^^^^^

Please help a bruddah out its 8 pm and I'm grinding on schoolwork.

Answers

This is the answer I got according to the app called “Math”
i got 140 z ^2 the square root and 6z in the square root

5,423,000 divided by 100,000 ( Please help ASAP)

Answers

the answer for this question is 54.23

Answer:

54.23

Step-by-step explanation:

i just divided in calculator

A museum recorded that it had 988 visitors in 4 hours. What is the unit rate in visitors per hour?
A.). 222
B.) 247
C.). 249
D.). 262

Answers

It could b a or c depend on what grade you are in
The answer is B, if you put it as a fraction, how do you get from 4 to 1? Divided by 4 right? So if you divide 988 by 4, you will get 247 visitors per hour :)

Your factory installed tires have a comfort that 95 inches if the odometer reading reading is 32,000 miles on your car you have tires with a conference have 103 inches how many miles have you actually traveled

Answers

Answer:

The correct solution is "35440.8".

Step-by-step explanation:

The given values are:

Bigger tire's circumference,

= 103 inches

Factor installed tire's circumference,

= 95 inches

Odometer reading,

= 32,000 miles

As we know,

⇒ [tex]Actual \ distance = K\times odometer \ reading[/tex]

Where,

⇒ [tex]K = \frac{Bigger \ tier \ circumference}{Factor \ installed \ tier \ circumference}[/tex]

i.e.,

⇒ [tex]K=\frac{103}{95}[/tex]

On applying the formula,

⇒ [tex]Actual \ distance \ travelled=\frac{103}{93}\times 32,000[/tex]

⇒                                           [tex]=35440.8[/tex]

Simplify
2x + x + x + 2y x 3yx y
Answer ?

Answers

Answer:

4x + 6y ...y cube

like y square y cube y3

Answer:

4x + 6y^3

Step-by-step explanation:

2x + x +x + 2y x 3y x y

4x + 6y^3

Ivan in inventory has a whole bunch of numbers just sitting around. He wants to build a “Multiples of 2” set in his free time. How can he tell which numbers belong in this set?

Answers

Answer:

If they are divisible by 2

Step-by-step explanation:

:))

like ex.

2 4 6 8 10 12

Hi, please help me

c - 4d =

C= 10
D=2

It's algebra​

Answers

Answer:

All you do is replace the variable with the numbers given to replace them.

So your new equation is 10-4(2) this was given to you C=10 , D=2

Okay, let's solve it 10-4(2)

4*2 equals 8 so now it's 10-8

10-8

= 2

A school purchases a used van that costs $10,000. The value, V(t), in dollars, of the van t years since its purchase is modeled by the exponential function V(t)=10,000(0.8)^t . Select ALL statements that are true regarding the value of the van. a.The value of the van decreases by 20% each year since its purchase. b.The value of the van decreases by 80% each year since its purchase. c.The value of the van decreases by $2,000 each year since its purchase. d.Each year since its purchase, the value of the van is 80% of the value of the previous year. e.Each year since its purchase, the value of the van is 0.8 times the value of the previous year.

Answers

Answer:

a.The value of the van decreases by 20% each year since its purchase.

b.The value of the van decreases by 80% each year since its purchase.

d.Each year since its purchase, the value of the van is 80% of the value of the previous year.

Step-by-step explanation:

From the above question, we are given the Exponential function

V(t)=10,000(0.8)^t

Verifying the given options:

a.The value of the van decreases by 20% each year since its purchase.

Option a is correct , this is because, the Exponential function above is and Exponential Decrease.

The formula is given as:

V(t) = 10000(1 - r) ^t

Where r = Decreasing rate

Comparing

= 1 - r = 0.8

= 1 - 0.8 = r

r = 0.2

Converting to percentage

= 0.2 × 100 = 20%

Option a is correct

b.The value of the van decreases by 80% each year since its purchase.

Let solve for t = 1 and t = 2

V(t) = 10000(0.8) ^t

When t = 1

= 10000× 0.8¹

= 8000

When t = 2

= 10000× 0.8²

= 6400

Confirming option d

For year 2

= 80% × year 1

Year 1 = 8000

= 80% × 8000 = 6400

Option b is correct

c.The value of the van decreases by $2,000 each year since its purchase.

Option C is incorrect

d.Each year since its purchase, the value of the van is 80% of the value of the previous year.

Option d is correct because

Let solve for t = 1 and t = 2

V(t) = 10000(0.8) ^t

When t = 1

= 10000× 0.8¹

= 8000

When t = 2

= 10000× 0.8²

= 6400

Confirming option d

For year 2

= 80% × year 1

Year 1 = 8000

= 80% × 8000 = 6400

Option d is correct

e.Each year since its purchase, the value of the van is 0.8 times the value of the previous year.

Option e is incorrect

From the options given in the question, the correct statements are,

Options a, b, and d.

-3(3p-1)<7p+51 help plssss

Answers

Answer:

p > -3

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to Right

Equality Properties

Multiplication Property of Equality Division Property of Equality Addition Property of Equality Subtract Property of Equality

Step-by-step explanation:

Step 1: Define

-3(3p - 1) < 7p + 51

Step 2: Solve for p

Distribute -3:                             -9p + 3 < 7p + 51Add 9p to both sides:              3 < 16p + 51Subtract 51 on both sides:       -48 < 16pDivide 16 on both sides:          -3 < pRewrite:                                    p > -3

Here we see that any value p greater than -3 would work as a solution to the inequality.

Simplify the Expression

Answers

Answer:

[tex]125a^{3}b^{2}[/tex]

Step-by-step explanation:

proof im actually 15 ANNIE

Answers

Answer:

.

Step-by-step explanation:

Answer:

????

Step-by-step explanation:

lol can I pls get brainliest

5 3/13 rounded to the nearest whole number

Answers

Answer:

it should be 5

Step-by-step explanation:

3/13 is smaller than 5.5 which would round up to 6, therfore is should be 5

Answer:

37

Step-by-step explanation:

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