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zubka84 [21]
3 years ago
6

2a + 1 > 9 or a < –1

Mathematics
1 answer:
SVEN [57.7K]3 years ago
7 0

Answer:

I don't know what you mean, but I'll say 2a+1>9 is a>4

Step-by-step explanation:

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Solve using synthetic division.<br><br> (x2 + 3) ÷ (x − 1)
murzikaleks [220]

Answer:

2x+3 / x = 1

Step-by-step explanation:

3 0
3 years ago
Select the correct answer.
Svetlanka [38]

Answer:

<h3>\boxed{ \boxed{ \bold{ {x}^{2}  + 4x - 21}}}</h3>

Step-by-step explanation:

\sf{(x - 3)(x + 7)}

Use the distributive property to multiply each term of the first binomial by each term of the second binomial.

⇒\sf{x(x  + 7) - 3(x + 7)}

⇒\sf{ {x}^{2}  + 7x - 3x  - 21}

Collect like terms

⇒\sf{ {x}^{2}  + 4x - 21}

Hope I helped!

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3 0
4 years ago
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Find the sum or difference <br> 31/4+42/4=
Alex73 [517]

The sum of 31/4+42/4= 18.25

<u>Step-by-step explanation</u>:

  • The denominators are same.
  • Then add the numerators and keep the denominators same.

The sum of (31/4) + (42/4) = (31+42)/4

⇒ 73/4

⇒ 18.25

8 0
3 years ago
Prove that if a, b ∈ n, then the supremum i.e. the least upper bound of {a, b} is the lcm(a, b).
WINSTONCH [101]
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───▐██──▀▀──▀▀──██▌───
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6 0
3 years ago
PLEASE HELP ME WITH THIS QUESTION
alekssr [168]

Answer:

The second option, 1,008 cm²

Step-by-step explanation:

   This shape has 5 sides to solve for with reguards to surface area.

   Let us solve for them all.

[1 & 2 - the triangles]

12 * 9 = 108 cm²

-> I am not going to divide since we have 2 congruent triangles

[3 - the bottom side]

25 * 12 = 300 cm²

[4 - the side facing away]

25 * 9 = 225 cm²

[5 - the side facing up]

25 * 15 = 375 cm²

   Now we will add them together for the total.

108 + 300 + 225 + 375 = 1,008 cm²

             The surface area for the triangular prism shown is 1,008 cm².

7 0
2 years ago
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