What does x and y equal

Answer:

  -63a+14a+56-3a

= -52a+56

Here we need to use algebraic properties to simplify an expression, we will get:

[tex]7\cdot (-9\cdot a + 2\cdot a + 8) - 3\cdot a = -52\cdot a + 56[/tex]

The mathematical property we need to use is the distributive property.

[tex]A\cdot (B + C) = A\cdot B + A \cdot C[/tex]

So we start with the expression:

[tex]7\cdot (-9\cdot a + 2\cdot a + 8) - 3\cdot a[/tex]

First, we use the distributive property in the first term so we get:

[tex]7\cdot (-9\cdot a + 2\cdot a + 8) - 3\cdot a \\\\= 7\cdot (-9)\cdot a + 7\cdot 2 \cdot a + 7 \cdot8 - 3\cdot a\\\\= -63 \cdot a + 14\cdot a + 56 - 3\cdot a[/tex]

Now we use the distributive property in the other way, we take "a" as a common factor:

[tex]-63 \cdot a + 14\cdot a + 56 - 3\cdot a\\\\= (-63 + 14 - 3)\cdot a + 56\\\\= -52\cdot a + 56[/tex]

Here we got the simplified expression.

If you want to learn more, you can read:

https://brainly.com/question/403991

The product xy is constant, so the relationship is an inverse variation. Thus, the correct option is A.

Algebra is the study of abstract symbols, while logic is the manipulation of all those ideas.

The definition of simplicity is making something simpler to achieve or grasp while also making it a little less difficult.

The table is given as,

x                  y                     xy

2               630                1,260

3               420                1,260

5               252                1,260

The product xy is constant, so the relationship is an inverse variation. Thus, the correct option is A.

More about the Algebra link is given below.

https://brainly.com/question/953809

#SPJ2

Answer:

V ≈ 263.9 units³

Step-by-step explanation:

The volume (V) of a cone is calculated as

V = [tex]\frac{1}{3}[/tex] πr²h ( r is the radius and h the height )

Here r = 6 and h = 7 , then

V = [tex]\frac{1}{3}[/tex] π × 6² × 7

   = [tex]\frac{1}{3}[/tex]π × 36 × 7

   = [tex]\frac{1}{3}[/tex]π × 252

   = 84 π

   ≈ 263.9 units³ ( to 1 dec. place )

Isolate the variable by dividing each side by factors that don't contain the variable.

x = 2 √ 3 , − 2 √ 3

Answer:

Step-by-step explanation:

[tex]440.4 + 5\cdot(\frac12\cdot16\cdot20)=440.4+800=1240.4\ mm^2[/tex]

Answer:

6 years

Step-by-step explanation:

is the answer

The sum of any tetracontadigon's interior angles is 7200 degrees.

Answer:

The inequality that models the story is h < 16.

Step-by-step explanation:

The information provided states that Eduardo ONLY wants 16 hot dogs at most which means he doesn't want to cook anymore hot dogs than 16 of them. The line below the symbol means that it could also equal to that number which is what Eduardo also wants. Now that we know the inequality, we also need to graph it. All you need to do is plot the endpoint at 16 with an arrow pointing to the left. It also requires a closed circle because it doesn't mean just less than, don't forget, it means less than OR equal to. A closed circle just means to shade the dot by the way.

Answer: h < 16

Step-by-step explanation:

h (the number of hotdogs) has to be less or equal to 16

for the line do a closed circle on 16, and have the arrow go left

Answer:

D. 1 cup

Half of 2/3 is 1/3 and 2/3 + 1/3 is 3/3 which is equal to 1 cup

hope this helps :)

Answer:

Infinite

Step-by-step explanation:

Hope that this helps!

Answer:

Step-by-step explanation:

2 or 3 im not v sure tho

A23425

Step-by-step explanation:

Answer:

12 cups

Step-by-step explanation:

1 quart is 4 cups, so 4 x 3= 12 and 1 x 3 = 3.. Good Luck!

Answer:

b

Step-by-step explanation:

Answer: Is 2

2x2=4

4 divided by 2=2

Answer:

2

Step-by-step explanation:

si 2 × 2 se divide por 2, la respuesta es 2

Answer:

Im not sure, but i think it's the bottom because there not working with negatives

Step-by-step explanation:

Don't put that as the answer tho, im not too sure.

Answer:

The second one

Step-by-step explanation:

Since it is (x - 9), an infinety is never negative because it is a continuously number so the second one is the most sensible answer

Hope this helps!

Answer:

16.28

Step-by-step explanation:

Answer:

d 21xysxhducux6cyvivivi

Answer:

m is the slope and b is the y intercept

Answer:

x=12 and the scale factor is 1.5

Step-by-step explanation:

From D' to F' is 7.5 and from D to F is 5cm the difference is 2.5. From F' to E' is x and from F to E is 8. This is just understanding what you can see. You find x by figuring out the ratio from 5 to 7.5 is and 8 to x or vise versa.  It depends which way you are going. I think you are going from E,D,F to E',D',F'. So from 5cm to 7.5 cm. This is 1.5 because you are dividing 7.5/5. If you needed to find x, it would be 12.

Answer:

I believe the answer is (A) 15.

Step-by-step explanation:

If she buys 15 pizzas and gives each student half a pizza, then that would be 30 halves. Meaning she needs to buy 15.

Answer:

y=4x-1

Step-by-step explanation:

Answer:

y = 4x - 1

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

Calculate m using the slope formula

m = [tex]\frac{y_{2}-y_{1} }{x_{2}-x_{1} }[/tex]

with (x₁, y₁ ) = (- 1, - 5) and (x₂, y₂ ) = (1, 3)

m = [tex]\frac{3+5}{1+1}[/tex] = [tex]\frac{8}{2}[/tex] = 4 , then

y = 4x + c ← is the partial equation

To find c substitute either of the 2 points into the partial equation

Using (1, 3 ) , then

3 = 4 + c ⇒ c = 3 - 4 = - 1

y = 4x - 1 ← equation of line

Answer:

the first one is three and the second one is 12

Answer:

10.25

Step-by-step explanation:

hope this helps with the problem

Answer:

Step-by-step explanation:

what

Answer: 22

Step-by-step explanation:

Answer:

there's not options :/ nobody can answer this

Answer:

h=8ft

p=a

b=7ft

now,

h^2=p^2+b^2

8^2=a^2+7^2

64=a^2+49

64-49=a^2

√15=a

Step-by-step explanation:

7×2=14(+)

8×2=16=

32squared.

Step-by-step explanation:

Use the above formula

-5 is the difference between the numbers..

hope you understood..

Answer:

25°

Step-by-step explanation:

A triangle will always add up to 180 degrees when all angles are added.

So:

100 + 55 = 155

180 - 155 = ∠B

180 - 155 = 25

∠B = 25°

Answer:

The answer is $26.7

Step-by-step explanation:yes