add (4x^2-xy-y^2) and (x^2+5xy+8y^2) simplify your answer:

Add (4x^2-xy-y^2) And (x^2+5xy+8y^2) Simplify Your Answer:

Answers

Answer 1

Answer:

To find a, b, and c, rewrite in the standard form ax2+bx+c=0ax2+bx+c=0.

a=1, b=3, c=0

Answer 2

Answer:

4x^2-4xy-3\frac{y^2}{2}x^2-5xy-3y^2 is 2

−3x^2 y^2 +8x^2 −18xy−6y^2

Step-by-step explanation:


Related Questions

Need some help with this question!!​

Answers

Is that from the Algebra Nation book? If so, go to Algebra Nation and there are vids that help step by step.

helpp 20 points!!!!!!!!!!!!

Answers

The answer is region B.

Answer: It is Region B. Please mark me brainiest.

Step-by-step explanation:

what is the smallest even number you can make with the numbers 5,7,4,9

Answers

Answer:

-4

Step-by-step explanation:

5 - 9 = -4.

Only 4 - 9 = -5 is smaller, but it is an odd number.

Answer:

-1

Step-by-step explanation:

5-7= -2, 7-9= -2

4-9= -5, 4-5= -1

Solve the inequality >7
t/4>7

Answers

Answer:

t > 28

Step-by-step explanation:

Given

[tex]\frac{t}{4}[/tex] > 7 ( multiply both sides by 4 to clear the fraction )

t > 28

Select the correct answer.
Which function has the same graph as x + y = 11?

A.
f(x) = -y + 11
B.
f(x) = -x + 11
C.
f(x) = x − 11
D.
f(x) = y − 11

Answers

Answer:

B. f(x) = -x + 11

Step-by-step explanation:

y = f(x)

therefore

x + y = 11 → x + f(x) = 11     |subtract x from both sides

x - x + f(x) = 11 - x

f(x) = -x + 11

The correct function is f(x) = 11 - x, has the same graph as x + y = 11, which corresponds to option B.

Therefore, the correct answer is:

B. f(x) = -x + 11

Here,

To find the function with the same graph as x + y = 11,

we need to isolate y in the equation to make it of the form y = f(x).

Given equation: x + y = 11

Subtract x from both sides of the equation:

y = 11 - x

Now, we have the equation in the form y = f(x).

so, we get, f(x) = -x + 11

i.e. The function which has the same graph as x + y = 11 is: f(x) = -x + 11

so, we have,

The correct function is f(x) = 11 - x, has the same graph as x + y = 11, which corresponds to option B.

Therefore, the correct answer is:

B. f(x) = -x + 11

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Which points (0,6) (7,9) (2,3) go through the line 3x+2y=12

Answers

Answer
(0,6)
Explanation

Solve: ( 1/9 )^6·81^4

Answers

Answer:

Either- 200778.9263 or 81

Step-by-step explanation:

Type this into the calculator:

First: (1/9)^6= 1.881676423x10^-6

Then: 81^4= 43046721

Then multiply the two: (1.881676423x10^-6)x 43046721= 200778.9263

                                                Or

Try this- type ((1/9)^6)x(81^4) into the calculator which comes out to 81

((1/9)^6)x(81^4)=81

Depends on which level you are at in math.

9514 1404 393

Answer:

  81

Step-by-step explanation:

The applicable rules of exponents are ...

  (a^b)^c = a^(bc)

  1/a^b = a^-b

  (a^b)(a^c) = a^(b+c)

__

  [tex]\left(\dfrac{1}{9}\right)^6\cdot81^4=9^{-6}\cdot(9^2)^4=9^{-6}9^8= 9^{-6+8}=9^2\\\\=\boxed{81}[/tex]


Ben has a collection of baseball cards. He has a total of 1,600 cards. Of the baseball cards, 35% are dated before 1980, 25% are dated from 1980 to 2000, and
the rest are dated after 2000.
How many baseball cards in Ben's collection are dated after 2000?

Answers

Answer:

640 cards

Step-by-step explanation:

If the rest are dated after 2000, that means that 40% are dated after 2000, since 25% + 35% = 60%

To find how many are dated after 2000, multiply 1,600 by 0.4:

1,600(0.6) = 640

So, 640 of the baseball cards are dated after 2000

not trying to do my work right help

Answers

Answer: you are correct. The answer is the first option and if you don't believe me look at my explanation.

Step-by-step explanation: Since a ratio can also be written as a fraction, 3:12 = 3/12. So what you do is simplify 3/12 to get 1/4 which equals 1:4.

You and a group of friends take turns planting 2 trees each at a campsite. After the first person plants 2 trees, there are 12 trees at the campsite. A. Write an equation for the nth term of the arithmetic sequence. Let n represent the position in the sequence and let an represent the number of trees. C. After 8 more people plant trees, how many trees are at the campsite?

Answers

Answer:

The equation for the nth term will be;

An = 10 + 2n

After the 9th planter ( 8 more than the initial one); number of trees will be 28

Step-by-step explanation:

After the first person plant two trees, there were 12 trees at the plant sites

What this mean is that initially, they were 12-2 = 10 trees at the plant site

The nth term of the sequence which represents the number of trees given the number of persons that have planted will be;

An = 10 + 2n

Now, after 8 more people planted, since we had one that already planted, the total number of planters is now 9 planters

So using the equation, n will be 9

So ; A9 = 10 + 2(9)

A9 = 10 + 18

A9 = 28

Original price: ?

Percent of discount: 25%

Sale price: $45

Answers

Answer:

Original price is 11.25

Step-by-step explanation:

Answer: 60

The percent of sale price is 100% - 25% = 75%

the original price is (45/75).100 = 60$

Step-by-step explanation:

What is the equation of the graphed polynomial below?
1
y = (-x + 2)2(-x + 3) 3
y = -(x + 2)2(x - 3)3
y = (x + 2)²(x - 3)2
y = (x - 2)*(x - 3)2

Answers

Answer:

D. y=(×-2)^3(×-3)^3

Step-by-step explanation:

the x and y axis interception

O Perímetro de triângulo isósceles mede 24cm. Qual é a medida de comprimento dos lados congruentes sabendo-se que o lado não congruente mede 7cm de comprimento?

Answers

Answer:

La longitud de los lados congruentes =

B = 8.5cm

C = 8.5 cm

Step-by-step explanation:

El perímetro del triángulo isósceles mide 24 cm.

El lado no congruente mide 7 cm de largo.

Lados congruentes significa lados que son iguales o iguales entre sí.

El perímetro de un triángulo es =

Lado A + Lado B + Lado C

Por lo tanto,

24 = 7 cm + B + C

24 - 7 = B + C

17 cm = B + C

Los dos lados son congruentes,

B = C

Por lo tanto, 17 cm / 2

= 8.5 cm

La longitud de los lados congruentes =

B = 8.5 cm

C = 8.5 cm

Solve the system using elimination (15 points)
2x+3y=9
x+5y=8

Answers

Answer: (3,1)

Step-by-step explanation:

2x + 3y = 9

(x + 5y = 8) -2

2x + 3y = 9

-2x - 10y = -16

      -7y = -7

         y = 1

2x + 3(1) = 9

       2x = 6

        x = 3

Britney is buying a shirt and a hat at the mall. The shirt costs $31.95, and the hat costs $19.45. If Britney gives the sales clerk $100.00, how much change should she receive? (Ignore sales tax.)

Answers

She will get back 48.60

Answer:

$46.10

Step-by-step explanation:

Tell me which ones are greater than or lesser than with these <>?

Answers

Answer:

1. >

2.<

3.<

btw

Absolute value equations are equations where the variable is within an absolute value operator, like |x-5|=9. The challenge is that the absolute value of a number depends on the number's sign: if it's positive, it's equal to the number: |9|=9. If the number is negative, then the absolute value is its opposite: |-9|=9.

Which set is not closed under addition
A. Natural numbers
B. Even integers
C. Odd numbers
D. Whole numbers

Answers

I'm pretty sure it's C: Odd numbers

what is the approximate area of the shaded sector in the circle below?​

Answers

Answer:

they deleted my account

Step-by-step explanation:

Anyone understand how to do this??

Answers

Answer:

T=-11

Step-by-step explanation:

y2-y1/x2-x1

=t-(-1)/9-10

=t+1/9-10

=t+1/-1

=-11+1/1

=-10/1

=-10

Hope this helps :)

A farmer sells his com for $320 a metric ton with a small surcharge of $25. His neighbor sells her corn crop for $320 a
metric ton and gives a $20 rebate. Write the cost model equations for both farmers and find the amount of corn that
makes the costs equal.

Answers

jnncjdjjcndncj hdjdjjdjcnekmsmxmenbrjfkekwkdkkrrmfmf

How much money is collected in tolls if 55 two axle cars cross the bridge? Type your answer in a
complete sentence.

Answers

Y•55=x

Step-by-step explanation:

In a recent survey, 230 or 46% of the sample, said they usually ate fast food when they went out to eat. How many people were surveyed?

Answers

Answer:

500.

Step- by-step explanation:

46% = 0.46 as a decimal fraction.

So it is 230 / 0.46

= 500.

A dyadic angle is an angle that is a sum of principle dyadic angles, this is to say that its measure in radians is zero or 2(pi) x (m/(2^n)) for some of the natural numbers m and n. Show that the sum and average of two dyadic angles is again a dyadic angle.

Answers

Answer:

attached below

Step-by-step explanation:

A dyadic angle is the sum of two principal dyadic angles

lets assume P and Q to be dyadic angles also assuming that they are non-zero in Radians

attached below is the proof that sum and average of two dyadic angles is a dyadic angle

Find the area of a square with side length x when x is equal to the given value.
Are the area of a square and the length of its side directly proportional? Justify your answer.

x=15 ft

Answers

Answer:

The area is 225 and they are not directly proportional

Step-by-step explanation:

find the area by doing 15 x 15 which is 225

Answer:

225

Step-by-step explanation:

easy

1. What is the predecessor of whole
number o?​

Answers

Step-by-step explanation:

The number which comes just before a particular number is called its predecessor. The predecessor of a whole number is one less than the given number. How to find the predecessor of a number? Clearly, the predecessor of 1 is 0; predecessor of 2 is 1; predecessor of 3 is 2 and so on.

Answer:

-1

Step-by-step explanation:

Predecessor of number is 1 less than it.

0-1 = -1

PLS GIVE BRAINLIEST

Witch graph represents the equation
-3x+4y=-12

Answers

Answer:

Of the ones you are showing us, C is the only answer with -4 being the y-int

Answer:

C is the correct graph

Step-by-step explanation:

The slope is 3/4

x l y

0 l -3

4 l 0

Which answer choice best describes 3x ?
terms
constant
coefficient
factor

Answers

It is a term.....................

If a 5 and b=4, then 2a +b=

Answers

2(5)+4=
10+4 = 14 right ??

An expression is defined as a set of numbers, variables, and mathematical operations. The value of the expression 2a+b when the value of a is 5 and b is 4  is equal to 14.

What is an Expression?

In mathematics, an expression is defined as a set of numbers, variables, and mathematical operations formed according to rules dependent on the context.

Given the expression 2a+b, whose values are needed to be calculated when the value of a is 5 and the value of b is 4. Therefore, the value of the given expression 2a+b can be written as,

2a + b

Substitute the value of a and b,

= 2(5) + 4

= 10 + 4

= 14

Hence, the value of the expression 2a+b when the value of a is 5 and b is 4 is equal to 14.

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Given the points (6, -6) and (1,7) find the slope.

Answers

Answer:

Step-by-step explanation:

m= rise over run

m= -13/5

Anwser: -13/5

Step-by-step explanation:

use the slope formula

y2-y1/x2-x1

mark your points(makes it easier)

(6,-6) (1,7)

x1. y1. x2 y2

plug in your points

(7-(-6)

1-(6)

= -13/5 (slope)

g(x) = 9(2x2 + 6
)
Determine g(1)

Answers

Answer:

g(1) = 72

General Formulas and Concepts:

Pre-Alg

Order of Operations: BPEMDAS

Step-by-step explanation:

Step 1: Define

g(x) = 9(2x² + 6)

g(1) is x = 1

Step 2: Solve

Substitute:                    g(1) = 9(2(1)² + 6)Evaluate:                       g(1) = 9(2(1) + 6)Multiply:                        g(1) = 9(2 + 6)Add:                              g(1) = 9(8)Multiply:                        g(1) = 72
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