Please help and make it right...

Answer:

y=2x2−8x

y=2x2−8x

Step-by-step explanation:

Xmin:

-10

Xmax:

10

Ymin:

-10

Ymax:

10

Answer:

let the two number be x and y then,

x+y=12

x-y=-4

-----------

2x=8

or, x = 4 put the value of x in first equation

4+y= 12

or, y=12-4

or, y= 8 hence the two number is 4 and 8

Answer:

d is equal to or greater than 9

Step-by-step explanation:

Subract thirteen from both sides of the equation.

Answer:

575 mm

Step-by-step explanation:

The ratio of perimeters is the same as the ratio of sides.

let x be the perimeter of B then by proportion

[tex]\frac{3}{345}[/tex] = [tex]\frac{5}{x}[/tex] ( cross- multiply )

3x = 1725 ( divide both sides by 3 )

x = 575

Then the perimeter of B is 575 mm

Answer:

v = 6

Step-by-step explanation:

Equation: 11.5v+70=139

Answer: See explanation

Step-by-step explanation:

From the question, we are informed that Brock divided all of his games into 3 shelves, and there were at least 12 games on each shelf.

The inequality that matches this scenario will be:

x ≥ 12.

Since there were at least 12 games, we would use the greater than or equal to sign.

Answer:

$0.3 per ounce.

Step-by-step explanation:

5.19/16.8=0.3

Step-by-step explanation:

7x= 180-x

7x+x= 180

8x= 180

x= 22.5

the angle is 22.5

its supplementary angle is 157.5

9514 1404 393

Answer:

  C)  800%

Step-by-step explanation:

The markup amount is the difference between the selling price and the cost:

  markup = selling price - cost

  markup = $63 -7 = $56

The percentage markup relative to the cost is ...

  markup/cost × 100%

  = ($56)/($7) × 100%

  = 8×100% = 800%

Answer:

Step-by-step explanation:

1.) 5

2.) 32

3.) 14

4.) 16

It's the associative property. One way to remember the associative property is that the numbers don't change, but the location of the numbers change.

Answer:

root3/ root2

Step-by-step explanation:

since this is a special right triangle (45, 45, 90) we can use right triangle rules. Basically, C in my photo is equal to the hypotenuse while A and B are equal to the sides. You can substitute your hypotenuse into the formula I gave you to find x.

B = C / root2

x = root3 / root2

hope this helped a little bit

Answer:

8x+9

Step-by-step explanation:

3(2x+1)+2(x+4)

6x+1+2x+8

8x+9

Answer:

8x-5

Step-by-step explanation:

6x+3+2x-8

You just have to add like values together.

Answer:

Step-by-step explanation:

8d=-72

d=-9

Answer:

Its positive

Step-by-step explanation:

3x - 5 = -3

3x = 2

x = 2/3

2/3 is positive

Answer:

ok thx

Step-by-step explanation:

I believe it is D.

brainiest if correct? thnx

a. Dilation of 2nd equation by a factor of 12

b. The systems have the same solution, as dilations do not affect overall coordinates, changing side lengths but not angles

Answer:

9/2

Step-by-step explanation:

3/4 x 6 can be thought of as multiplying 3/4 x 6/1

When multiplying fractions, multiply the numerator (top number) with the numerator, and the denominator with the denominator.

3/4 x 6/1 = (3x6)/(4x1)

3/4 x 6/1 = (18)/(4)

3/4 x 6/1 = 9/2

Let me know if this helps!

Answer:

92/

Step-by-step explanation:

3/4×6

18/4

9/2

hope it's helpful ❤❤❤❤

THANK YOU.

#

Answer:

look at the step by step explanation

Step-by-step explanation:

hey! keep calm okay? i got u.

Okay so for a pack of 12 confetti eggs, you pay $2.88. to find the unit price, or price for 1 egg, you just take 2.88 divided by 12 (which i already did) and you get 0.24. so the price for 1 confetti egg is $0.24 or 24 cents.

James reads 520 words in 2 minutes. Luke reads 960 words in 5 minutes. All we need to find out is how many words can they read in 1 minute? All ewe do is take 520 divided by 2, and you get 260. Then you take 960 divided by 5, and you get 192. so the rates they read at is 260 wpm and 192 wpm.

A shipping and handling fee is 35.00 right? so what you want to find is “35.00 is what percent of 437.50?” and if you think about it and go through it, 35 is 8% of 437.50. so 8% of the total is the shipping and handling fee!

good luck! i hope this helped!

Answer:

D

Step-by-step explanation:

Just put the functions over each other and subsitute the values from the functions. The answer should be D if you just sub in the value for f(n) and g(n) respectively.

Answer:

-5.4 + 2.52h

Step-by-step explanation:

Answer:

200km

Step-by-step explanation:

Answer: 1.8

Step-by-step explanation:

12/6.5

Answer:44.44%

Step-by-step explanation:Take the absolute value of the difference fof the two and then divide by the first number:

Answer & Step-by-step explanation:

1. (3g−2) (2g+3)

2. 9(x−1)^2

Sorry if wrong ;(

Hope this helps ;)

Answer:

(3g-2)(2g+3)

9(x-1)^2

Hope this helps

Step-by-step explanation:

let jon age be x

dad age is 2 of x i.e 2x

grandpa age is 7 + 3(x)

The sum of jon dad and grandpa age is 145 i.e

x + 2x + (7+3x) = 145

3x +. 7 + 3x = 145

6x = 145- 7

6x = 138

divide both sides by 6

x = 23

jon age is 23

while

grandpa age is

7 + 3(x)

7 + 3(23)

7 + 69

76.