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QveST [7]
3 years ago
13

Help I need to submit soon

Mathematics
2 answers:
Ostrovityanka [42]3 years ago
8 0

Answer:

4

Step-by-step explanation:

I don't know if u want the explanation

Y_Kistochka [10]3 years ago
5 0
I got 4 as the answer
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How to solve polynomials?
liberstina [14]

Factoring:

FOIL (first, outer, inner, last) method

(a+b)(c+d) = 0

ac+ad+bc+bd = 0

Zeros:

(x+a)(x+b) = 0

x+a = 0, x= 0-a

x+b = 0, x= 0-b

4 0
3 years ago
How would you verify tan3x = (3tanx - tan^3 x) / ( 1 - 3tan^2 x) and sin4x = (cosx)(4sinx - 8sin^3x) step-by-step?
padilas [110]
Hope this helps you.

5 0
3 years ago
You want to put $2,500 in a simple interest account.It has a 4% annual interest rate.How long will it take you to earn $200 in i
prohojiy [21]
It will take 2 years.

Year 1 :
4% 2.5k = 2.5k/100 × 4 = $100 in interest

$2.5k + $0.1k = $2.6k

Year 2 :
4% 2.6k = 2.6k/100 × 4 = $104 in interest

$100 + $104 = $204 > $200

There may be a simpler way to solve this using a formula for example, but I just solved this step by step. Please feel free to ask if you have any questions
7 0
3 years ago
When x = 3 and y = 5, by how much does the value of 3x2 – 2y exceed the value of 2x2 – 3y ?
SpyIntel [72]

Answer:

14

Step-by-step explanation:

{3x}^{2}  - 2y \\ 3 { \times 3}^{2}  - 2 \times 5 \\ 27 - 10 = 17

{2x}^{2}  - 3y \\ 2 \times  {3}^{2}  - 3 \times 5 \\ 12 - 15 =  - 3

17 - 3 = 14

7 0
2 years ago
Read 2 more answers
Resolve into factors: 81a3 + 3b3
iren [92.7K]

Answer: (3a+b)⋅(9a  2 −3ab+b2 )

Step-by-step explanation:

8 0
2 years ago
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