determine the balance on a 250 account that earns 3 percent interest over 7 years

Answer:

1. 678.6

2. 1131

3. 490.1

4. 1809.6

Step-by-step explanation:

A=2πrh+2πr2

Answer:

1.  SA = 216π cm² ≈ 678.24cm²

2. SA = 360π ft²≈ 1130.40ft²

3. SA = 156π yd² ≈ 489.84yd²

4. SA = 576π m² ≈ 1808.64 m²

Step-by-step explanation:

SA of a cylinder = 2πrh + 2πr²

1.  r = diameter ÷ 2

  r = 12/2 = 6

   SA = 2π(6)(12) + 2π(6)²

   SA = 144π + 72π

   SA = 216π ≈ 678.24

2. r = 19/2 = 9

   SA = 2π(9)(11) + 2π(9)²

   SA = 198π + 162π

   SA = 360π ≈ 1130.40

3.  SA = 2π(6)(7) + 2π(6)²

    SA = 84π + 72π

    SA = 156π ≈ 489.84

4. r = 24/2 = 12

    SA = 2π(12)(12) + 2π(12)²

    SA = 288π + 288π

    SA = 576π ≈ 1808.64

Answer:

C. [tex]n^{2}[/tex]-6n+5

Step-by-step explanation:

Area of a rectangle =l x w

A=(n-5)(n-1)

Use distributive property

[tex]n^{2}[/tex]-n-5n+5

Combine like terms

[tex]n^{2}[/tex]-6n+5

Answer:

Set up camras get ur proof

Step-by-step explanation:

Answer:

1. a) 3x + 21 = 6x - 60

  b) x = 27

  c) angle measure = 102º

2. a) 12x - 18 = 8x + 10

   b) x = 7

   c) angle measure = 66º

3. a) 7x + 9 + 5x + 3 = 180 (simplified: 12x + 12 = 180)

   b) x = 14

   c) 107º; 73º

4. a) 3x + 10 + 3x -28 = 180 (simplified: 6x -18 = 180)

   b) x = 33

   c) 109º; 71º

5. a) 12x + 15 = 15x

   b) x = 5

   c) 75º

Step-by-step explanation:

1. a) they're the same angle so set them equal to each other: 3x + 21 = 6x - 60

  b) solve from the equation above

      3x + 21 = 6x - 60        subtract 3x from both sides

       21 = 3x - 60                add 60 to both sides

       81 = 3x                        divide both sides by 3

       x = 27

  c) plug back into each equation (they should be the same, but do both just to check)

      3(27) + 21 = 81 +21 = 102º

      6(27) - 60 = 162 - 60 = 102º

2. a) again, they're the same angle measure so set them equal to each other: 12x - 18 = 8x + 10

   b) solve the equation for x

      12x - 18 = 8x + 10            subtract 8x from both sides

       4x - 18 = 10                     add 18 from both sides

       4x = 28                           divide both sides by 4

       x = 7

  c) plug back into each equation (they should be the same, but do both just to check)

      12(7) - 18 = 84 - 18 = 66º

      8(7) + 10 = 56 + 10 = 66º

3.  a) the sum of the two angles is 180º so 7x + 9 + 5x + 3 = 180

         if you want the equation simplified: 12x +12 = 180

     b) solve for x, i will be using the simplified equation

         12x + 12 = 180            subtract 12 from both sides

         12x = 168                    divide both sides by 12

         x = 14            

     c) plug into each equation to get the two angle measures

         7(14) + 9 = 98 + 9 = 107º

         5(14) + 3 = 70 + 3 = 73º

4. a) the sum of the two angles is 180º so 3x + 10 + 3x -28 = 180

       if you want it simplified: 6x -18 = 180

   b) solve for x, i will be using the simplified equation

       6x - 18 = 180                    add 18 to both sides

       6x = 198                           divide both sides by 6

       x = 33

   c) plug into each equation to get the two angle measures

      3(33) + 10 = 99 + 10 = 109º

      3(33) - 28 = 99 - 28 = 71º

5. a) they're the same angle measure so set them equal to each other: 12x + 15 = 15x

   b) solve for x with the equation above

        12x + 15 = 15x                   subtract 12x from both sides

        15 = 3x                              divide both sides by 3

        x = 5

  c) plug back into each equation (they should be the same, but do both just to check)

      12(5) + 15 = 60 + 15 = 75º

      15(5) = 75º    

Answer:

if i had to chose i think it be (B)

Step-by-step explanation:

Answer:

it's D

Step-by-step explanation:

Answer:

-54

Step-by-step explanation:

-72+12+6

Answer:

slope is -4/1 so

Step-by-step explanation:

Answer:

Y=-4x+4

Step-by-step explanation:

I was really good at it two years ago this should be correct, if not sry.

Answer:

= because 3 quarters are equal to 75 cents

Answer:

0.75 = 3/4

Step-by-step explanation:

you can view this as 4 quarters makes 1 dollar, every quarter is equal to 25c

1/4 quarters = 25

2/4 quarters = 50

3/4 quarters = 75

4/4 quarters = 100

0.75 = 3/4

Answer:

Hannah's line should start at 220 and Brandon's at 340 and should go down each hour by 30 and 50 respectively.

Answer:

220 330

Step-by-step explanation:

Answer:

if it is a fraction, it is 5/4. If it is a decimal, it is 1.25

Step-by-step explanation:

15/12 = 5/4 = 1.25

Answer:

1.25

Step-by-step explanation:

Answer:

950 milliliters

Step-by-step explanation:

0.1 liter = 100 milliliters

the one moved up 3 place values

so that means 0.95 x 1000 = 950

Answer:

950 milliliters

Step-by-step explanation:

0.1 liters = 100 milliliters

0.95 x 1000 = 950 milliliters

Answer:

69

Step-by-step explanation:

Answer:

Step-by-step explanation:

1. 9/12 and 5/12

2. 80

Answer:

1. -3

2. -0 i think

3. 4

Step-by-step explanation:

sorry if this is wrong good luck!!<3

Answer:

120 square cm

Step-by-step explanation:

Just times 40 by 3 and that would look like 1:3 (because 40 is the one value)

40:120

1:3

Answer:

c

Step-by-step explanation:

40*3 = 120

Answer:

I know you have a problem

Answer:

m<1=145°

m<2=35°

m<3=35°

Step-by-step explanation:

m<1=145°

m<2=35°

m<3=35°

Step-by-step explanation:

hope it will help and support you ☺

Answer:

the second choice

Step-by-step explanation:

one negative number can cause the answer to be negative

Remember (with multiplication or division):

two positives make a positive

two negatives make a positive

two different signs makes a negative

Answer:

54 cubic feet

Step-by-step explanation:

Answer:

Newer locker by 1 cubic foot

Step-by-step explanation:

3 · 3 · 6 = 54 ft³

2.5 · 5.5 · 4 = 55 ft³

55 ft³ - 54 ft³ = 1 ft³

Finding volume by multiplying

Finding volume with unit cubes

you take base one and mulitiply it by the number its beside. then multiply by the height

The difference between finding the volume of this right rectangular prism with whole unit cubes

A unit cube with side lengths of 1 centimeter has a volume of 1 cubic centimeter. A unit cube with side lengths of 1 inch has a volume of 1 cubic inch.

To find the volume of a rectangular prism, multiply its 3 dimensions: length x width x height. The volume is expressed in unit cubes .

To learn more about  unit cubes, refer

https://brainly.com/question/22747437

#SPJ2

Answer:

Last one

Step-by-step explanation:

It shows that each wreath, y, is worth 18 dollars and that the total price is 234

Answer:

uhh i think y divided by 18 = 234 . . i might be wrong

Step-by-step explanation:

Answer:

138 is an exterior angle

58 and x is interior

add

x is 80

Step-by-step explanation: