CAN SOMEONE HELP ME EVALUATE THE EXPRESSION (4^2-4)+6/2

Answer:

16 * (cube root of 0.5)

Step-by-step explanation:

Radius of the big cone = 12 cm / 2 = 6 cm

Let r = radius of the small cone (cone of water), and h = the height of the small cone

Also, r / h = 6 / 16, so that h = (16/6)r = (8/3)r.

Thus, since the volume of the big cone = (1/3)π(r^2*h)=(1/3)π(6^2*16), and the volume of the small cone = (1/3)π(r^2*h)=(1/3)π(r^2*(8/3)r) = (1/3)π(r^3*(8/3)), and the volume of the small cone is half the volume of the big cone, we have that

(1/3)π(r^3*(8/3))=(1/2)((1/3)π(6^2*16))

(r^3*(8/3))=(1/2)((6^2*16))

r^3 = (3/8)(1/2)(6^2)(16)

r^3 = (1/2)(6^3)

r = (cube root of 1/2)(6),

and

h = (8/3)r = (8/3)(cube root of 1/2)(6) = 16(cube root of 1/2), the depth of the water.

Answer:

y = -5x - 8

Step-by-step explanation:

Parallel lines have the same gradient

Using the point (-3,7) we will form our own equation.

-3 will be x, 7 will be y, -5 will be m, all we have to do is find the C in the form y=mx+c

7 = -5(-3) + c

7 = 15 + c

C = -8

Therefore;

y = -5x - 8

Answer:

same number

Step-by-step explanation:

The product of 1 any number is the same number.

Answer:

Step-by-step explanation:

circumference=75 ft.

2πr=75

r=75/2π=75/(2×3.14)≈11.937

radius=11.94 ft

Diameter=2r=2×11≈23.87 ft

Answer:

25.69

Step-by-step explanation:

I think

Answer:

$4.31

Step-by-step explanation:

$30 - $25.69 = $4.31

Answer:

the answer is A

Step-by-step explanation:

I took the test

Answer:

c. 9 miles

Step-by-step explanation:

Answer:

I think it is 9 miles

Step-by-step explanation:

Answer:

-2

Step-by-step explanation:

To find the slope pick ANY 2 points on the line and see what you had to do to get from one point to another point.

Keep in mind that slope = rise/run , or m = difference in y /difference in x

For example, Start at (0,0) and Go to (6,-3)

To get from one point to the other you have to go up 6 and left 3 so slope is

m=6/-3 = -2

Answer:

The ocean

Step-by-step explanation:

Answer:

1) true

2)true

3)false

4)true

5)true

6) false

7))true

8)true

9)false

10)false.

11)false

12)true

Answer:

1-True

2-True

3-False

4-True

5-True

6-False

7-True

8-True

9-False

10-False

11-False

12-True

Answer:

Step-by-step explanation:

Yes it’s balance

9514 1404 393

Answer:

  12 11/24 radians (combined angular motion)

Step-by-step explanation:

In one hour, the combined angular motion is ...

  (2π)(1 +1/12) = 13π/6 radians

Then in the 5 3/4 hours between 1 pm and 6:45 pm, the angular motion of the two hands will total ...

  (23/4)(13π/6) radians = 299π/24 radians = 12 11/24 radians

_____

Additional comment

Maybe you're asking for the separate motions.

  minute hand: 2π×5.75 = 11.5π radians

  hour hand: (π/6)×5.75 = 23π/24 radians

Answer:

x = 2

y = 1

Step-by-step explanation:

1) Re-arrange

(Solving for y)

-2x -3y = -7    -->  x3

6x - y = 11    -->  x1

-6x -9y = -21

6x -y = 11

-9y = -21

-y = 11

(-9y + -y) = (-21 + 11)

-10y = -10    

y = -10/-10

y = 1

2) Substitute

6x - 1 = 11

6x = 11 + 1

6x = 12

x = 12/6

x = 2

Answer: x = 2, y = 1

Step-by-step explanation:

Rearrange the second equation so it just works a little easier for you:

-2x - 3y = -7

rearranged to make y (with its constant) the subject:

3y = 7 - 2x

So we know what y equals. The question tells us y = 6x - 11. So substitute those values into the rearranged equation.

3y = 7 - 2x   becomes:

3(6x - 11) = 7 - 2x

because as stated in the question, y = 3x - 11.

Expand the brackets on the left-hand side:

18x - 33 = 7 - 2x

Rearrange to collect like terms:

18x = 7 + 33 - 2x

18x = 40 - 2x

18x + 2x = 40

20x = 40

x = 40/20

x = 2.

So now we know the value of x.

Let's input our new found value of x into one of the given equations, such as y = 6x - 11.

y = (6 * 2) - 11

y = 12 - 11

y = 1.

So y = 1.

You can test this by inputting these values into the other equation, for assurance.

-2x - 3y = -7 becomes:

(-2 * 2) - (3 * 1) = -7

(-4) - 3 = -7

-7 = -7

Answer: 240cm cubed (the three)

Step-by-step explanation:

Length x width x height

6x4x10

Answer:

[tex]They'll \: be \: on \: the \: circle:[/tex]

[tex](x+3)^2+(y+6)^2=25[/tex]

[tex]x=1[/tex]

[tex](y+6)^2=9[/tex]

[tex]y + 6 = 3[/tex]

[tex]y = -3[/tex]

[tex](1,-3)[/tex]

[tex]y + 6 = -3[/tex]

[tex]y = -9[/tex]

[tex](1,-9)[/tex]

Step-by-step explanation:

[tex]Thank \: you!!!!!![/tex]

Answer:

Her average time was 8.1 minutes per mile.

Step-by-step explanation:

[tex]▪▪▪▪▪▪▪▪▪▪▪▪▪ {\huge\mathfrak{Answer}}▪▪▪▪▪▪▪▪▪▪▪▪▪▪[/tex]

Distance covered = 3.7 miles

Time taken = 30 minutes = 0.5 hour

Time taken to cover 1 mile :

average time for each mile is equal to 0.135 hr or 8.1 minutes.

Answer:

pie =1 so hence find p x+3+2 -X-22+1 =1

Step-by-step explanation:

Answer:

The decimal form of this fraction is 3.7 repeating.

Answer:

3.777...

Step-by-step explanation:

Answer:

They left their wallet on the table, I wonder if they know.

The possessive pronoun- their

Answer:

Step-by-step explanation:

1) 4m + 2n = 4*7 + 2*(-2)

                 = 28 - 4

                 = 24

2) P = abc

       = 2*3*4

      =  24

3) Multiply n by 9 : 9*n = 9n

Then add 5

9n + 5

4)double of n = 2*n = 2n

Answer:

f×g=

[tex] = 2x \times (5x + 2) \\ = 10 {x}^{2} + 4x \\ = 10 \times {3}^{2} + 4 \times 3 \\ = 90 + 12 \\ = 102[/tex]

Answer:

(8, 3)

Step-by-step explanation:

The first number (8) is our x, and we can see that this point is 8 units to the right. Then the second number (3) is our y, and we can see this is 3 as the point is 3 units up.

x = right or left

      - right = positve

      - left = negative

y = up or down

      - up = positve

      - down = negative

Answer:

B = (8, 3)

Step-by-step explanation:

In the ordered pair (x, y) of point B, (8, 3):

x = 8

y = 3

Hope this helps :)

Answer:

5/x3

Step-by-step explanation:

just calculated it

Answer:

x = 16

Step-by-step explanation:

7x + 9 = 9x - 23

9 + 23 = 9x - 7x

32 = 7x

32 / 7 = x

16 = x