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uranmaximum [27]
3 years ago
12

.

Mathematics
1 answer:
topjm [15]3 years ago
5 0

Answer:

second equation :

( 20x² — 2xy — 42y² )

Step-by-step explanation:

expand the two brackets.

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tamaranim1 [39]

Answer:

your picture doesnt show all the answers but it doesnt matter well just count it

surface area = (length x width) + (width x height) + (height x length) and the answer we times it by 2 (cuz they are 6 sides in a prism)

so 4 x 5 + 5 x 10 + 10 x 4 = 110

110 x 2 = 220in²

8 0
3 years ago
Help please. this is really hard for me to understand.
bogdanovich [222]

Answer:

1. x = - 4, - 3

2. x = 9, - 1

3. x = - 1, 10

4. x = - 8, - 3

8 0
3 years ago
Find the total surface area of a cylinder if r=2 and h=8
Ghella [55]

Answer:

100.5

Step-by-step explanation:

22/7*2^2*8

=22/7*4*8

=22/7*32

=100.5

5 0
3 years ago
Find the y-intercept of the line 4x + 8y = 16.
aksik [14]

Answer:

the y intercept is 8

Step-by-step explanation:

3 0
3 years ago
need help working out a math problem ASAP for my math test and am totally lost can someone please help
LUCKY_DIMON [66]

Answer:

Go to math

Step-by-step explanation:

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