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Minchanka [31]
3 years ago
14

PLEASE ANSWER CORRECTLY (PLEASE HELP)!!

Mathematics
1 answer:
hjlf3 years ago
5 0

Answer:

Ee your house

Tffyyfyf7rrryStep-by-step explanation:

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Lesson 19 problem set module three grade 7?
yanalaym [24]

Answer:

what is the problem

Step-by-step explanation:

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Given right triangle RST, what is the value of sin(S)? Five-thirteenths Five-twelfths Twelve-thirteenths Thirteen-twelfths
Tju [1.3M]

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A: 5/13

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Just keep getting more homework.<br> i really need help
rusak2 [61]

Answer:

1. x = 1, y = -3

2. x = 3, y = 4

Step-by-step explanation:

Here, we want to solve the sets of simultaneous equations;

a) -y = 5x-2

-3y = -5x + 14

substitute 1 into ii

3(5x-2) = -5x + 14

15x - 6 = -5x + 14

15x + 5x = 14 + 6

20x = 20

x = 20/20

x = 1

from;

-y = 5x - 2

y = -5x + 2

y = -5(1) + 2

y = -3

b) -2y = -6x + 10

2y = x + 5

Substitute ii into i

-(x + 5) = -6x + 10

-x - 5 = -6x + 10

-x + 6x = 10 + 5

5x = 15

x = 15/5

x = 3

2y = x + 5

2y = 3 + 5

2y = 8

y = 8/2

y = 4

4 0
3 years ago
Write -2i + (9 - 3i) - (6 - 10i) as a complex number in standard form. 3 - 5i 3 + 5i 3 + 16i 12 - 16i
Ierofanga [76]

Answer:

3 + 5i

Step-by-step explanation:

Given

- 2i + (9 - 3i) - (6 - 10i) ← distribute parenthesis

= - 2i + 9 - 3i - 6 + 10i ← collect like terms

= 3 + 5i

7 0
3 years ago
b) 7 of these cuboids of side 3 cm are put together to make this shape. Find the surface area of this shape. (3) Total marks: 5
valentina_108 [34]

Answer:  504 cm^2

The surface area of the shape is:

3 3 * 3=9

9 * 7=63

63+9=72 * 7

=504cm^2

6 0
2 years ago
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