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Liula [17]
3 years ago
14

Item 10

Mathematics
1 answer:
Tema [17]3 years ago
3 0

Answer:

I DID THIS FOR POINTS

Step-by-step explanation:

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Solve for 19= -3a -5
Vesnalui [34]

Answer:

a = -8

Step-by-step explanation:

19 = -3a - 5

Add 5 to both sides.

24 = -3a

Divide both sides by -3.

-8 = a

Switch sides.

a = -8

6 0
3 years ago
Read 2 more answers
I’m confused someone explain please
Naya [18.7K]

Answer:

3(x - 12)(x + 2)

Step-by-step explanation:

Given

3x² - 30x - 72 ← factor out 3 from each term

= 3(x² - 10x - 24) ← factor the quadratic

Consider the factors of the constant term (- 24) which sum to give the coefficient of the x- term (- 10)

The factors are - 12 and + 2 , since

- 12 × 2 = - 24 and - 12 + 2 = - 10 , thus

x² - 10x - 24 = (x - 12)(x + 2) and

3x² - 30x - 72 = 3(x - 12)(x + 2)

3 0
3 years ago
What is (-3)x(5-7)-9(39/3)
Orlov [11]

Answer:-111

Step-by-step explanation:

3 0
3 years ago
Simplify: 9(a + b) + 4(3a + 2b)<br> A) 13a 13b <br> B) 21a + 17b <br> C) 21a + 2b <br> D) 38ab
Aneli [31]
The answer is
B) 21a + 17b
8 0
3 years ago
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In ​ Quadrilateral ABCD ​ , AB¯¯¯¯¯∥CD¯¯¯¯¯ and m∠2=31°.
kotegsom [21]
When DC//AB, ∠5=∠2=31
6 0
3 years ago
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