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Harlamova29_29 [7]
3 years ago
10

HELP ME DO THIS QUESTION PLEASE

Mathematics
2 answers:
STALIN [3.7K]3 years ago
8 0
Volume- 864
surface area- 684
Leni [432]3 years ago
4 0

Answer:

Volume: 864

Surface Area: 684

Step-by-step explanation:

Volume:

\frac{1}{2}(9 * 16 * 12) = 864

Surface-Area: (Pretty Self-explanatory)

1. Triangles - 12 * 9 = 108 (You don't need to divide it by two, just leave it as is because there are two of these triangles.)

2. Base - 16 * 9 = 144

3. Height/Base - 12 * 16 = 192

4. 15 * 16 = 240

192 + 144 + 108 + 240 = 444

The Surface Area is 684.

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neonofarm [45]
1 is L
2 is N
3 is M

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7 0
3 years ago
I need help on 21 and 22
Bas_tet [7]

Answer:

Q-22 (a) area of each face (square) = sxs

= 10 x 10

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Total surface area = 6a²

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8 0
3 years ago
I need help on this.​
diamong [38]

Answer:

hello

Thanh have 3,5 meters of fabric. i can say

3,5/1 for it.

and i can say 35/10

now he used three-fourths of a meter of fabric.

its equal to 3/4

now i have to remove 3/4 from 35/10.

35/10 - 3/4

denominators have to be same thats why im expanding them to 20.

35×2/10×2 = 70/20

3×5/4×5 = 15/20

now i can remove 15/20 from 70/20!

70/20 - 15/20 = 55/20

we cannot see 55/20 in the options.

thats why im dividing them with 5.

55÷5= 11 20÷5=4

the answer is 11/4

11/4 = 2and 3/4

so its option 2

good luck(:

7 0
3 years ago
What is the slope of the line that contains the following points(17,-12) and (17,8)
skad [1K]

Answer:

it is an undefined slope meaning it has no slope or change so there is no equation

Step-by-step explanation:

I have taken a class on this but if it only goes straight up and down it is undefined

3 0
3 years ago
Farida bought 20 stamps consisting of 20 sen stamps and 60 sen stamps. The total cost of the stamps is RM8.80. How many 20 sej s
krek1111 [17]

Answer:

# of 20cent stamps = 8

Step-by-step explanation:

Let the  number 20cent stamps be = x

Let the number 60 cents stamps be = y

Total number of stamps => 20 = x + y ----------- ( 1 )

Total cost of the stamps = 8.80

That is, 0.20x + 0.60y = 8.80 ------------- ( 2 )

      ( 2 ) => 20x + 60y = 880

            => x + 3y = 44

           =>  x = 44 - 3y

Substitute x in  ( 1 ) => x  +  y = 20

                                 44 - 3y + y = 20

                                     - 2y = 20 - 44

                                     - 2y = - 24

                                       2y = 24

                                       y = 12

Substitute y = 12 in  ( 1 ) => x + y = 20

                                         x + 12 = 20

                                            x = 8

3 0
3 years ago
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