SOMEONE PLZ HELP ME

The questions aren't well formatted ; from the values that are observable,

Answer:

Coefficient of x = -9.9 ;

Coefficient of x = 75

Coefficient of y = 275

Step-by-step explanation:

Given :

0.8 (2x + x) + 3(7 - 4.1x) = __x + 21

0.8(3x) + 21 - 12.3x = __x + 21

2.4x + 21 - 12.3x = __x + 21

-9.9x + 21 = __x + 21

-9.9

12 1/2 (6x + 22y) = x + y

75x + 275y = x + y

Answer:

The answers are:

1.  -9.9x

2.  3x + 11y

3.  1

4.  3

Answer:

- 3 < n < 6

Step-by-step explanation:

Given

- 17 < 7n + 4 < 46 ( subtract 4 from each of the intervals )

- 21 < 7n < 42 ( divide each interval by 7 )

- 3 < n < 6

Answer:

x = -4 1/2

Step-by-step explanation:

-2x/3 + 11 = 14

subtract 11 from each side of the equation:

-2x/3 = 3

multiply both sides by 3:

-2x = 9

divide both sides by -2:

x = -4 1/2

Answer:

100 times smaller

Step-by-step explanation

48.6 / 0.486 = 100

Answer:

140 inches

Step-by-step explanation:

Find the area of the square.

4 + 10 = 14 (Length)

11 + 4 = 15 (Breadth/Width)

Area = 14 x 15 = 210 inches

Find the area of the 2 unshaded squares in the square.

Area of square at the top = 4 x 4 = 16 inches

Area of square at the bottom = 6 x 9 = 54 inches

Add the 2 squares of the area together.

16 + 54 = 70 inches

Now deduct the area of the huge box by the area of the 2 unshaded squares.

210 - 70 = 140 inches

Answer:

What do u need help with

Step-by-step explanation:

Answer: 18+6w

Step-by-step explanation:

Answer:

4(x+8)

4x+32

4 x X = 4x     4 x 8 = 32      

Step-by-step explanation:

Answer:

The answer is A. Constructive interference .

Step-by-step explanation:

I got it right on the Unit Test Review . Hope this helps <3 .

Answer:

A: Constructive interference

Step-by-step explanation:

Here is proof sorry im late but its extra proof its right give other person brainliest

Step-by-step explanation:

Circumference=22π

2πr=22π

r=11 in.

Area=121π in.²

Hope it helps you

Answer:

A. {0, 1, 3, 4}

Step-by-step explanation:

For a relation with elements (x, y)

The domain is the set of the x-values, that are the input values.

Here we have the relation:

{(4, -1), (3, 2), (0, -3), (1, 4)}

Here we can see that the inputs are:

4, 3, 0, and 1.

Then the domain is:

{4, 3, 0, 1}

Now let's write this in the correct order:

{0, 1, 3, 4}

The domain of the relation is: {0, 1, 3, 4}

Then the correct option is A.

Answer:i think its 70 if im wrong im very sorry

Step-by-step explanation:

the answer is 7 because thats what photo math told me

Answer:

7

Step-by-step explanation:

(8+56)÷4-3^2

PEMDAS:

(64)÷4-3^2

PEMDAS:

(64)÷4-9

PEMDAS:

(16)-9

7

hope this helps

Answer:

The correct answers are A and C.

Step-by-step explanation:

Answer: A + C

Step-by-step explanation:

i got it right

Answer:

1 hour and 30 minutes

Step-by-step explanation:

4 hours = 240 miles

1 hour = 240 ÷ 4 = 60 miles

90 ÷ 60 = 1.5 hours =

1 hour and 30 minutes

Answer:

it is the second one:

4x(5-4y)

Answer:

the answer is B.

Step-by-step explanation:

Answer:

which question is it? and please take the picture from the top.

Step-by-step explanation:

And Also will answer in the replies.

I think SAS .,................

Answer:

22 1/2 ÷ 2 1/4 = 10 servings

Answer:

3 hours

Step-by-step explanation:

Answer:

h = 6

Step-by-step explanation:

60*6 = 360

360+20 = 380 BD

Answer:

i cant answer this one, its waaaay too confusing for me

Step-by-step explanation:

Answer:

-7

Step-by-step explanation:

Answer:

26.3

Step-by-step explanation:

the first guy was close, for those of you who struggle with acellus im here to help haha

Answer:

1

I THINK I GOT IT OMG THAT WAS SO HARD

Answer:

z = 5

Step-by-step explanation:

[tex]\frac{4x^2y^7}{8x^3y^2} = \frac{y^z}{2x}[/tex]

It can be also written as -

[tex]\frac{2^2 \times x^2 \times y^7}{2^3 \times x^3 \times y^2} = \frac{1 \times x^0 \times y^z}{2 \times x^1 \times y^0}[/tex]

Using law of exponents , lets solve this.

[tex]=> 2^{(2-3)} \times x^{(2-3)} \times y^{(7 - 2)} = \frac{1}{2} \times x^{(0-1)} \times y^{(z-0)}[/tex]

[tex]=> 2^{-1} \times x^{-1} \times y^{5} = 2^{-1} \times x^{-1} \times y^z[/tex]

[tex]=> \frac{y^5}{2x} = \frac{y^z}{2x}[/tex]

[tex]=> y^z = y^5[/tex]

[tex]=> z = 5[/tex]

Answer:Weight of wood part of the sculpture  (no decimals) =4kg

Step-by-step explanation:

Weight of sculpture containing metal and wood   = 14.9 kg

weight of metal =3/4 x 14.9 kg =11.175kg

weight of wood =Entire sculpture − weight of metal

 = 14.9 kg−11.175kg

  =3.725kg

Rounding up to remove decimals  we have that Weight of wood part  =4kg

Answer:

A. mount

Step-by-step explanation:

Semoga bermanfaat

Which of these is not a trait of cnidarians?

spicules

a mouth

stinging cells

nervous system

Answer:

the answer is C

Step-by-step explanation:

Answer:

a = 4

Step-by-step explanation:

a = 4

If a = 4, then both lines have the same slope and different y-intercepts. That makes both lines parallel. Since the lines never intersect, there is no solution.

Answer:

x can not equal zero, as it would cause division by zero.

Step-by-step explanation:

First, let's make one equation out of them and see what we get.  Because both of them have y on the left, we can say that the two right sides are equal, giving us:

4x - 9 = ax + 6

If we solve for a, we get:

ax + 6 = 4x - 9

ax = 4x - 15

a = 4 - 15 / x

With that arrangement we can see clearly that x can not be equal to zero, as it would give us division by zero.

Answer:

y=  (3x^2-3x+27)^1/3

Step-by-step explanation: