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Korvikt [17]
3 years ago
14

...............HELP..........

Mathematics
2 answers:
Ludmilka [50]3 years ago
8 0

Step-by-step explanation:

i think its the first onne not sure

Mariulka [41]3 years ago
4 0
The answer would be B. A(4,3); quadrant I
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Solve the following equation:<br> 9n² - n - 2/3 = 0
KIM [24]

Answer:

see explanation

Step-by-step explanation:

Given

9n² - n - \frac{2}{3} = 0 ← multiply through by 3 to clear the fraction

27n² - 3n - 2 = 0 ← factoring

Consider the factors of the product of the n² term and the constant term which sum to give the coefficient of the n- term

product = 27 × - 2 = - 54 and sum = - 3

The factors are - 9 and + 6

Use these factors to split the n- term

27n² - 9n + 6n - 2 = 0 ( factor the first/second and third/fourth terms )

9n(3n - 1) + 2(3n - 1) = 0 ← factor out (3n - 1) from each term

(3n - 1)(9n + 2) = 0

Equate each factor to zero and solve for n

3n - 1 = 0 ⇒ 3n = 1 ⇒ n = \frac{1}{3}

9n + 2 = 0 ⇒ 9n = - 2 ⇒ n = - \frac{2}{9}

3 0
3 years ago
Need help asap <br><br> 6. Which line has a slope equal to 1?<br><br> HELP ON 7 two
alex41 [277]

Answer:

6 is the third one 7 is D

Step-by-step explanation:

hope this helps

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8 0
2 years ago
You have $50 in your bank account.
kap26 [50]

Answer:

10 hours

Step-by-step explanation:

If I have $50 in my bank account, and I want to have a total of $130 in my account. It means that I need to work enough hours to make $130 - $50 = $80.

If I make $8 per hour, and I need to make $80, then I just have to work 10 hours. ($80/8 = 10)

7 0
3 years ago
can someone help me?? What is the solution to the linear equation? d – 10 – 2d + 7 = 8 + d – 10 – 3d d = –5 d = –1 d = 1 d = 5
erik [133]

Answer:

No

Step-by-step explanation:

No

6 0
3 years ago
Read 2 more answers
3- An archaeologist descends 18 feet into a canyon, then climbs up 14 feet. 1 point
Lady_Fox [76]
4 feet.

Because 18-14 is 4
8 0
3 years ago
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