Question

if you know maths help me ​

Answer 1

Answer:

1.) b.) 1/2

2.) a.) 0

3.) d.) -5

4.) b.) 0x + 5y - 2 = 0

5.) d.) 180°

Step-by-step explanation:

1.) 2x² + 7x - 4 = 0

=> 2x² - x + 8x - 4 = 0

=> x(2x - 1) + 4(2x -1) = 0

=> (2x - 1)(x + 4) = 0

∴ x = 1/2, -4

As 1/2 is given in the options, the correct answer is b.) 1/2.

2.) Roses can't grow on lotus plants as they are not related.

So, a.) the probability of a rose growing on a lotus plant is impossible, i.e. 0.

3.) We know that coordinates are written in the form (x, y).

So, (x, y) = (3, -5)

Comparing, x = 3 and y = -5.

Thus, d.) -5 is located on the y - axis.

4.) 5y = 2

=> 5y - 2 = 0

As x is not given, we assume x's coefficient as 0.

So, the answer is b.) 0x -+ 5y - 2 = 0

5.) We know that by ASP (Angle Sum Property) of a triangle, sum of all its (interior) angles is 180°.

As ∠x, ∠y and ∠z are (interior) angles of a triangle, their sum is 180°.

Thus, the correct answer is d.) 180°.

Answer 2

Answer:

1. 1/2
2. 0
3. -5
4. 0x+5y-2
5. 180°

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