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BartSMP [9]
4 years ago
5

Please answer correctly !!!! Will mark brainliest !!!!!!!!!!!!!!

Mathematics
2 answers:
alukav5142 [94]4 years ago
6 0

Answer:

A, C

Step-by-step explanation:

10x+ 4y = -2

5x -2y = 2

We can multiply the first equation by 1/2

5x+2y = -1

And then add the equations to eliminate y

5x+2y = -1

5x -2y = 2

--------------------

10x +0y = 1

Adding the equations will not eliminate any variables

15x +2y =0

Multiply the bottom equation by 2 and then subtract

10x -4y = 4

10x+ 4y = -2

-10x +4y = -4

------------------

0x +8y = -6  will eliminate x

ICE Princess25 [194]4 years ago
3 0

Answer:

Answer A, C

Step-by-step explanation:

When multiplying the bottom equation by two, you get 10x-4y=4

After subtracting 10x-4y=4 and the top equation you will be able to eliminate the variable x.

You can also also get the same result and eliminate a variable with answer A.

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Find each lettered angel measure
hammer [34]

Answer:

a = 64°

b = 138.7°

Step-by-step explanation:

First, Let's find the measure a,

  • 180° = 116° + a
  • 180 - 116 = a
  • a = 64°

______

Now,

  • 90° + a + 82° + x + x + x = 360°
  • 90+ 64 + 82 + 3x = 360°
  • 236 + 3x = 360
  • 3x = 124/ 3
  • x = 41.3°

______

Now that we found out what x equals, let's find 'b'-

  • b + x = 180°
  • b + 41.3 = 180
  • b = 180 - 41.3
  • b = 138.7°
7 0
2 years ago
The Singapore Flyer is a giant observation
Law Incorporation [45]

Answer:

28

Step-by-step explanation:

Let x be the number of capsules on the Singapore Flyer.

Each capsule can carry x passengers.

Therefore x^2 = 784.

x = 28

8 0
3 years ago
PLEASE help!10 points​
andrey2020 [161]

Answer:

[ 0 ]

Step-by-step explanation:

The order of the matrix [ 3 1 1 ] is 1 by 3 and the order of the other matrix is 3 by 1 so this means that the order of the answer matrix is 1 by 1. So we multiply matrices row by columns.

[ 3 1 1 ] × | 2|

| -6|

| 0|

[ 3 × 2 + 1 × -6 + 1 × 0 ]

[ 6 - 6 + 0 ]

[ 0 ]

4 0
3 years ago
A special number cube has the first six prime numbers as possible outcomes. Find the expected value of a roll of the
nalin [4]

Answer:

D

Step-by-step explanation:

6 0
3 years ago
Solve for X...........​
blsea [12.9K]

Answer: First Choice. no solution

Step-by-step explanation:

<u>Given</u>

5 (x + 1) ≤ 5x + 3

<u>Expand parentheses and apply the distributive property</u>

5x + 5 ≤ 5x + 3

<u>Subtract 5x on both sides</u>

5x + 5 - 5x ≤ 5x + 3 - 5x

5 ≤ 3

5 ≤ 3 is not true, therefore, there is <u>no solution</u>.

Hope this helps!! :)

Please let me know if you have any questions

6 0
3 years ago
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