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please answer question 4
It shows the one I got wrong so please don’t choose that one

The correct answer would be -3/8 or in decimal form -0.375 :)

Answer:

Simplify the expression.

8x² + 8

Answer:

8(x^2 +1)

Step-by-step explanation:

(x^2 + 3)^2 - (x^2 - 1)^2

(x^2 + 3 - (x^2-1)) • (x^2 + 3 + (x^2 - 1))

(x^2 + 3 - x^2 + 1) • (x^2 + 3 + (x^2 - 1)

(3 + 1) • (x^2 + 3 + x^2 - 1)

4(2x^2 + 1)

4 • 2(x^2 + 1)

8(x^2 +1)

Step-by-step explanation:

The question is to combine the equations, so we should add them.

- 2x -4y = -26

+ - 3x -3y = - 12

(same signs add, different signs subtract)

-5x -7y = -38

(in the question there are two boxes at the side of the eqaution you should put (+)sign there as youre adding them)

If this question was supposed to be subtracted it would give a while different ans)

Answer:

y = 8x + 38

Step-by-step explanation:

To find the slope we set up y = mx + b and plug m (our slope) in and then plug in the point into x and y to find b (our y-intercept)

   y = mx + b

   y = 8x + b

   6 = 8(-4) + b

   6 = -32 + b

+32   +32

 38 = b

So using our slope and our intercept we have our slope intercept

y = mx + b

y = 8x + 38

Hope this helps :)

Answer:

y - y1 = m(x - x1)

y - 6 = 8(x - (-4))

y - 6 = 8(x + 4)

y - 6 = 8x + 32

y = 8x + 32 + 6

y = 8x + 38

Step-by-step explanation:

First you input the given values ( m = 8 and (-4, 6)) into the point-slope equation.

After that, you multiply the 8 by the two terms inside the parentheses, giving you 8x and 32.

Then you add 6 to both sides of the equation to isolate the y.

The slope-intercept equation ends up looking like this: y = 8x + 38

Hope this helps :)

Answer and Step-by-step explanation:

Distribute the 6mn to the 2m and -3n

The answer is:

[tex](12m^{2} n ) - 18mn^{2}[/tex]

#teamtrees #WAP (Water And Plant)

Answer:

12m^2n - 18mn^2

Step-by-step explanation:

6mn(2m-3n)

Multiply with distributive property, so basically just multiply

12m^2n - 18mn^2

Answer:

D

explain:

attachment

Answer:

The answer is x = 6.

Step-by-step explanation:

The middle line is 2, and the leg is [tex]\sqrt{13}[/tex]. We can use the pythagorean theorem and use [tex]\sqrt{13}[/tex] as the hypotenuse and have 2 be a leg.

[tex]a^{2} + b^{2} = c^{2} \\\\2^{2} + b^{2} = \sqrt{13}^{2}[/tex]

[tex]4 + b^{2} = 13\\\\b^{2} = 9\\b = 3[/tex]

Since we know one of the bottom parts of x is 3, and the other triangle is the same as the on we solve, we do 3 + 3 which is 6. 6 is equal to x.

#teamtrees #WAP (Water And Plant)

Answer:

Step-by-step explanation:

Step one:

given data

Maya

P=$1650

r=5%= 0.05

t= 4 years

The simple interest expression is

A=P(1+rt)

A=1650(1+0.08*4)

A=1650(1+0.32)

A=1650(1.32)

A=1650*1.32

A=$2178

James

P=$1600

r=8%= 0.08

t=4years

The compound interest expression is

A=P(1+r)^t

A=1600(1+0.08)^4

A=1600(1.08)^4

A=1600*1.360

A=$2176

After 4 years Mayas' balance is $2178

After 4 years James' balance is $2176

the difference is =2178-2176=$2

Answer:

x = 9

Step-by-step explanation:

x² = 81

[tex]\sqrt{81} = 9[/tex]

9×9 = 81

x = 9

Answer:

Silly mistake haha I've been there. It would be 9 :)

Step-by-step explanation:

9x9 = 81 so 9^2 =81

If you had 3 then it would be 3x3=9 and 3^2= 9

You're welcome :)

Answer:

A

because if you divide them

Answer:

1) The graph is opening upwards

2) Axis of symmetry is x=-2

3) Vertex: (-2, 1) minimum y=1

4) y intercept is (0, 9)

5) domain: x|x ∈ R (All real numbers)

6) Range y|y ≥ 1

Answer:

Pretty sure its undefined

Step-by-step explanation:

Answer:

Undefined

Step-by-step explanation:

Looking at the change in x's theres no variation which means this is a vertical line, thus therefore this is an undefined line as the rise over the run or the change in y over the change in x will result in a divide by 0 situation making it (-4, all real numbers) aka undefined.

slope = rise/run = change in y/change in x = (y2-y1)/(x2-x1)

Hope this helps :)

Answer:

c

Step-by-step explanation:

Answer:x^4+6x^3+6x^2-9x+12

Step-by-step explanation:

Answer:

£2.80

Step-by-step explanation:

7%= 7/100

(7/100)*40=2.8

Answer:

=£ 2.80  or   £2 80p

Step-by-step explanation:

7% of £40

7 x 40 = 280

100           100

= £2.80 or £2 80p

Answer:

I think it's C. Sorry if it's incorrect! I worked it out in like 2 min.

Answer:

there are two variables x and y which variable do u need to find or do u need it in point slope form

Answer:

Simplifying

6x + 3y = 54

Solving

6x + 3y = 54

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-3y' to each side of the equation.

6x + 3y + -3y = 54 + -3y

Combine like terms: 3y + -3y = 0

6x + 0 = 54 + -3y

6x = 54 + -3y

Divide each side by '6'.

x = 9 + -0.5y

Simplifying

x = 9 + -0.5y

Step-by-step explanation:

Answer:

Step-by-step explanation:

Step one:

given the expression w/8 - 4 = 20

the first operation is to isolate the term that has w by adding 4 to both sides

w/8 - 4+4 = 20+4

w/8 = 16

Required

the value of w

Step two:

the next step is to cross multiply

w=16*8

w=128

Answer:

None

Step-by-step explanation:

Square roots of negatives are imaginary numbers.

Answer:

MTD = 75

Step-by-step explanation:

RTD + RTM + MTD = 180

     65 + 40 + MTD = 180

            105 + MTD = 180

Subtract 105 from both sides.

                      MTD = 75

Don't forget to mark me brainliest : )

When two straight lines or rays intersect at a shared endpoint, an angle is generated. The measure of the angle ∠MTD is equal to 15°.

When two straight lines or rays intersect at a shared endpoint, an angle is generated. An angle's vertex is the common point of contact. Angle is derived from the Latin word angulus, which means "corner."

Given that point M is in the interior of ∠RTD. Also, the measure of ∠RTM=40°, and ∠RTD = 65°.

Now, since the two angles together form ∠RTD, therefore, we can write,

∠RTD =  ∠RTM + ∠MTD

65° = 40° + ∠MTD

∠MTD = 65° - 40°

∠MTD = 15°

Hence, the measure of the angle ∠MTD is equal to 15°.

Learn more about Angle here:

https://brainly.com/question/7116550

#SPJ2

Answer:

D. 8ab+12a-2b-3

Step-by-step explanation:

You are basically combining like terms

Answer:

D.) is the correct answer 8ab + 12a – 2b – 3

Step-by-step explanation:

Answer:

A will be 5 and B will be 25

9514 1404 393

Answer:

Step-by-step explanation:

The square of a binomial is ...

  (x +a)² = x² +2ax + a²

Comparing this to your expression, we have ...

  2a = 20 . . . . x-coefficient

  a² = c . . . . . . constant term

Then ...

  a = 20/2 = 10

  a² = 10² = 100 = c

The square is then ...

  (x +10)²

Answer:

c = 100 makes this a perfect square trinomial

Step-by-step explanation:

[tex]x^2+20x+c\\x^2+20x+100\\=(x+10)^{2}[/tex]

Answer:

y=2x+1

Step-by-step explanation:

Answer:

a

Step-by-step explanation:

Answer:

he put 3 extra meatballs so i say A

Step-by-step explanation:

cuz if you take 2 from 5 you will have 3

YYY, GYY, YGY, YYG, GGY, YGG, GYG, and GGG should be the answer

Answer:

yyy ggg gyy ygg ggy yyg ygy gyg

Step-by-step explanation:

Answer:

m<ACD = 90

m<CDB = 126

m<EDB = 54

m<CDE = 180

Step-by-step explanation:

Well you have the right girl! *In honors geometry you can trust me!

Ok first thing...We already know

B = 54

A = 90  

D = 54 (It's the Alternate interior angle of B)

C = 90

m<ACD = 90 (C = 90)

m<CDB = 126 (D = 54 ------> 180-54= 126)

m<EDB = 54 (Alternate Interior angle of B)

m<CDE = 180 (It is a straight line)

Hope this helps ya!!

Answer: 16

2(8)

16

Step-by-step explanation:

b = 8

2(8)

= 16