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Svetllana [295]
3 years ago
8

PLZ HURRY I NEED HELP!!!!!!!??​

Mathematics
2 answers:
Elan Coil [88]3 years ago
8 0
The answer is 14 accute 15
aleksley [76]3 years ago
3 0

Answer:

Step-by-step explanation:

14 bc 15

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3n^2-1 find the 2nd and 5th term
Butoxors [25]

Answer:

2nd term = 11

5th term = 74

Step-by-step explanation:

3n² - 1

n = 2 , 2nd term = 3*2²  - 1

                           = 3*4 -1

                          = 12 - 1

                          = 11

n= 5 , 5th term = 3*5² - 1

                        = 3*25 - 1

                      = 75 - 1

                      = 74

7 0
3 years ago
Read 2 more answers
<img src="https://tex.z-dn.net/?f=%20%5Cfrac%7Bx%20%2B%202%7D%7B%20%7Bx%7D%5E%7B2%7D%20-%209%20%7D%20%20%5Ctimes%20%20%5Cfrac%7B
OlgaM077 [116]

Answer:

\frac{1}{(x-3)(x-2)}

Step-by-step explanation:

Factorise the denominators of both fractions

x² - 9 and x² - 4 are both differences of squares and factor as

x² - 9  = (x - 3)(x + 3) and x² - 4 = (x - 2)(x + 2), thus express as

\frac{x+2}{(x-3)(x+3)} × \frac{x+3}{(x-2)(x+2)}

Cancel the factors (x + 3) and (x + 2) from the numerators/denominators of both fractions leaving

\frac{1}{(x-3)(x-2)}



7 0
3 years ago
In school ,there are 3 girls for every 2 boys . There are 650 students in total . How many students are girls
EastWind [94]

Answer:

390 girls.

Step-by-step explanation:

\frac{3}{5} of 650 is 390.

6 0
3 years ago
Gemma wants to draw a triangle with side lengths of 4 inches, 12 inches, and 17 inches. Which statement is true? This triangle e
OLga [1]
<span>Answer:This triangle does not exist because the sum of 4 and 12 is less than 17.

Since 4+12 isnt greater than 17, the triangle doesn't exist</span>
6 0
3 years ago
Read 2 more answers
Factor the GCF: −12x3y5 − 9x2y2 + 12xy3
Luba_88 [7]
<span>−12x3y5 − 9x2y2 + 12xy3</span>
-3xy^2(4x^2y^3+3x-4y)
6 0
3 years ago
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