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quester [9]
2 years ago
12

Pls helpppppppppppppp

Mathematics
1 answer:
OLEGan [10]2 years ago
7 0

Answer/Step-by-step explanation:

The following steps to solve equation given by join are shown below including the property of numbers applied for each reasons:

4(2a + 3) = -3(a - 1) + 31 - 11a ----› Given

Apply the distributive property to open the parentheses

4*2a + 4*3 = -3*a -3*-1 + 31 - 11a

8a + 12 = -3a + 3 + 31 - 11a ----› Distributive property

Combine like terms together

8a + 12 = 3 + 31 -3a - 11a

8a + 12 = 34 - 14a ---› Combining like terms

Add 14a to both sides

8a + 12 + 14a = 34 - 14a + 14a

22a + 12 = 34 ----› Addition property

Subtract 12 from both sides

22a + 12 - 12 = 34 - 12

22a = 22 ----› subtraction property of equality

Divide both sides by 22

22a/22 = 22/22

a = 1 ----› Division property of Equality

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Cot^2x csc^2x + 2 csc^2x –cot^2 = 2
kow [346]

Answer:

x = π/2 + πk

Step-by-step explanation:

cot² x csc² x + 2 csc² x − cot² x = 2

Multiply both sides by sin² x:

cot² x + 2 − cos² x = 2 sin² x

Add cos² x to both sides:

cot² x + 2 = 2 sin² x + cos² x

Pythagorean identity:

cot² x + 2 = sin² x + 1

Subtract 1 from both sides:

cot² x + 1 = sin² x

Pythagorean identity:

csc² x = sin² x

Multiply both sides by sin² x:

1 = sin⁴ x

Take the fourth root:

sin x = ±1

Solve for x:

x = π/2 + 2πk, 3π/2 + 2πk

Which simplifies to:

x = π/2 + πk

4 0
3 years ago
Find the midpoint of the line segment with the endpoints A and B.<br> A(10,6); B(8,4)
MatroZZZ [7]

Answer:

(9,5)

Step-by-step explanation:

10+8/2=18/2=9

6+4/2=10/2=5

4 0
2 years ago
What is 2 over3 times 1 over2
shusha [124]
2/3 * 1/2

Multiply straight across

2*1 = 2
3*2 = 6

2/6 = 1/3

Answer: 1/3
4 0
3 years ago
Can the expression be used to solve 29x14? yes or no for each expression a(9x4)+(20x4)+(9x1)+(20x1) yes No
Alekssandra [29.7K]

no because

29×14 is 406

9×4

20×4

9×1

<u>20×1</u>

49×10 490

490 and 406 aren't equal

7 0
3 years ago
Need help please will give you a 5 stars
GenaCL600 [577]

Answer:

option 1

Step-by-step explanation:

Here (2,0)

(2-4) square -4 is = 0

7 0
3 years ago
Read 2 more answers
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