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Alona [7]
3 years ago
12

7th grade math help me please:)

Mathematics
2 answers:
Rus_ich [418]3 years ago
4 0

Answer:

????????????

Step-by-step explanation:

navik [9.2K]3 years ago
3 0

Answer:question A i am confused on.

Step-by-step explanation:

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ABCD is a parallelogram the diagram is not drawn to scale
nirvana33 [79]
IT would also be 66

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4 0
4 years ago
How do i solve 2x-y=9
devlian [24]
20 with a number minus what will equal 9. ^_^
3 0
4 years ago
What is the surface area of this rectangular pyramid?
Alexxx [7]

Answer:

304m^2

Step-by-step explanation:

First find the surface area of the base by multiplying the length by the width.

(12m) (8m)= 96m^2

Second, find the surface area of the front and back triangles using the formula <em>1/2 (base) (height)</em>. Use the length for the base.

1/2 (12m) (10m)= 60m^2

Next, find the surface area of the side triangles using the formula <em>1/2 (base) (height). </em>Use the width as the base.

1/2 (8m) (11m)= 44m^2

Last, add the surface area of each section. Make sure you add the area of each face.(we only solved for 1 of the front/ back triangles and 1 of the side triangles) To make it easier to understand I wrote out an equation to show how I added the surface areas.

base=a, front/ back triangles= b, side triangles=c

SA= a + 2b +2c  or SA= a +b +b +c +c

Using one of the equations above solve for the total surface area.

SA= (96m^2) + (60m^2) +(60m^2) +(44m^2) +(44m^2)

or

SA= (96m^2) + 2(60m^2) +2(44m^2)

SA=  (96m^2) +(120m^2) +(88m^2)

SA= 304m^2

7 0
3 years ago
Simplify the expression 1/4(8x+16y)
Dimas [21]

Answer:

2x+4y

Step-by-step explanation:

1/4(8x+16y)

( 1 /4 )(8x+16y)

Distribute

( 1 /4 )(8x)+( 1 /4 )(16y)

=2x+4y

merry Christmas

7 0
3 years ago
Find (y) 2x+0,4y= 9 x=2,3
yarga [219]

Answer:

9y 2x+0,4y=9 4=2,3

Step-by-step explanation:

7 0
3 years ago
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