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Gala2k [10]
2 years ago
13

If the scale is 3cm to 8 km, what is 5 cm?

Mathematics
1 answer:
IgorC [24]2 years ago
6 0

Answer:

Step-by-step explanation:

3 cm=8 km

1cm=8/3 km

5 cm=8/3×5=40/3 =13 1/3 km

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What is the surface area of the composite figure
leva [86]

Answer:

The answer is 672.

Step-by-step explanation:

To solve this problem, first let's find the surface area of the rectangular prism. To do that, multiply each dimension with each (times 2 | just in case you don't understand [what I'm talking about is down below]).

8 x 8 x 2 = 128

8 x 11 x 2 = 176

8 x 11 x 2 = 176

Then, add of the products together to find the surface area of the rectangular prism.

176 + 176 + 128 = 480

Now, let's find the surface area of the square pyramid. Now, for this particular pyramid, let's deal with the triangles first, then the square. Like we did with the rectangular prism above, multiply each dimension with each other (but dividing the product by 2 | in case you don't understand [what i'm talking about is down below]).

8 x 8 = 64.

64 ÷ 2 = 32.

SInce there are 4 triangles, multiply the quotient by 4 to find the surface area of the total number of triangles (what i'm talking about is down below).

32 x 4 = 128.

Now, let's tackle the square. All you have to do is find the area of the square.

8 x 8 = 64.

To find the surface area of the total square pyramid, add both surface areas.

128 + 64 = 192.

Finally, add both surface areas of the two 3-D shapes to find the surface area of the composite figure.

192 + 480 = 672.

Therefore, 672 is the answer.

6 0
3 years ago
Mindy has $10.75 to buy school supplies. She spends $3.96 at one store for a package of glue sticks, but she still needs to buy
maks197457 [2]
She can only spend $2.62
5 0
3 years ago
Read 2 more answers
Plsssss<br>do all of the questions and I give you brainlist .make sure they are right ​
ozzi

Answer:

1) 6,000 B) 800 C) 4,000

2)7,500

3)third and fourth one

4)6,951

Step-by-step explanation:

just because

6 0
3 years ago
Read 2 more answers
Which of the following is an even function?
nika2105 [10]

Answer:

An even function is:

f(x) = 7

Step-by-step explanation:

An even function accomplish the following condition:

f(x)=f(-x) (1)

Applying (1), we have:

  • f(x)= (x-1)^2 \neq f(-x) \neq (-x-1)^2
  • f(x)= 8x \neq f(-x) \neq -8x
  • f(x)= x^2 -x \neq  f(-x) \neq (-x)^2 +x
  • f(x)=7 = f(-x)= 7

The last one is even.

3 0
3 years ago
Which could be the area of one face of the triangular prism? Check all that apply
Sever21 [200]

Area of rectangles = Length x width.

Area of triangles = 1/2 x base x height.

1 face is 12 x 10 = 120 square units

1 face is 12 x 8 = 96 square units

1 face is 12 x 6 = 72 square units

And 2 faces are 1/2 x 8 x 6  = 24 square units

Answers are 24 , 72 and 96 square units.

5 0
3 years ago
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