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Cerrena [4.2K]
4 years ago
15

Jake paints all sides except the bottom of the box length=20cm width=15cm height=12

Mathematics
1 answer:
Crazy boy [7]4 years ago
6 0

Answer:

Area Painted = (2*12*15) + (2*20*12)

Step-by-step explanation:

If you imagine a box, you know that the bottom area would be found by multiplying the length by the width. Thus, the only other area you want to find are the sides of the box. I multiplied the length and the height as well as the width and the height. I multiplied that by 3 because there's two sides that are always going to be the same. I recommend you draw a picture before attempting to write an expression,

Hope this helped :)

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Please help asap! One question! Please help me!!
Anna [14]

Answer:

false, false

Step-by-step explanation:

C' is (5, 4)

A' is (5, -4)

Each side of the triangle is larger in the image, and the area is larger.

Answer: false, false

4 0
3 years ago
Describe the location of point (−5, −5, 5) in three-dimensional coordinate space.
Diano4ka-milaya [45]
Here's a really cool website that let's you input 3D points!
http://technology.cpm.org/general/3dgraph/

From the attached picture you can see that the point has moved back 5 units, to the left 5 units, and up 5 units.


7 0
3 years ago
Read 2 more answers
Directions: Find the perimeter and area of each figure below.<br><br> HELPPPP ASPPP
11Alexandr11 [23.1K]

Answer:

17) 6a^{3}b^{2}

18) 40m^{4} n^{10}

19) 14x³y²

20) 9x^{2} y^{6}π

Step-by-step explanation:

17)

Area of triangle = 1/2*b*h

A = 1/2(4a²b)(3ab)

A = 6(a³b²)

18)

A = 1/2(4mn⁵)(20m³n⁵)

A = (40)(m⁴n¹⁰)

19)

A = 2 (1/2)(2xy)(3x²y)

A = (6x³y²) + (4x²y*2xy)

A = 6x³y² + 8x³y²

A = 14x³y²

20)

A = (3xy³)²

A = 3² x² (y³)²

8 0
3 years ago
Mir evaluated 5x - (x + 3)2 for x = 2, as shown. Describe Amir's mistake and find the correct answer. 5(2) - (2 + 3)2 = 10 + (-5
sleet_krkn [62]

Answer:correct answer =0

Step-by-step explanation:

Step 1

5x - (x + 3)2

Putting the coefficient of x =2 in the equaton we have

5(2) - (2 + 3)2

Solving out

5(2) - (5)2

= 10- 10

=0

Step 2

Amir's mistake was in the multiplication  and wrong use of the negative sign of the bolded below

5(2) - (2 + 3)2 = 10 + (-5)2 = 10 + 25 = 35

-(5)2 cannot give 25 instead 10, so him getting a 25 and wrong use of the negative and positive made his answer wrong.

The right answer as calculated in step 1 = 0

4 0
3 years ago
Read 2 more answers
Simon is building a ramp in the shape of a triangular prism. He plans to paint each face of the ramp. What is the total surface
o-na [289]

Answer:

Option (3)

Step-by-step explanation:

The ramp shown in the figure is in the shape of a triangular prism.

Therefore, total surface area of this ramp = Area of the triangular sides + Area of the base + Area of the vertical side + Area of the slanting side

Area of the triangular sides = 2[\frac{1}{2}(Base)\times (h)]

                                              = bh

                                              = 4×3

                                              = 12 square feet

Area of the rectangular base = Length × Width

                                                = 4 × 8

                                                = 32 square feet

Area of the vertical side = Length × Width

                                        = 3 × 8

                                        = 24 square feet

Area of the slanting side = Length × width

                                         = 8×5

                                         = 40 square feet

Total surface area = 12 + 32 + 24 + 40

                              = 108 square feet

Option (3) will be the answer.

5 0
3 years ago
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