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baherus [9]
4 years ago
14

Solving guadratic equations

Mathematics
1 answer:
Leona [35]4 years ago
8 0

Answer:

Want to get them in standard form. ax+bx=c

Step-by-step explanation:

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5. -4n + 7 + 2n =1
Minchanka [31]
5.
-4n+ 7+ 2n= 1
⇒ (-4n+ 2n)+ 7= 1 (combine like terms)
⇒ -2n= 1-7
⇒ -2n= -6
⇒ n= -6/(-2)
⇒ n= 3

Final answer: B. 3~

6. 4(y-4)= 8
⇒ y-4= 8/4
⇒ y-4= 2
⇒ y= 2+4
⇒ y= 6

Final answer: D. 6~


3 0
3 years ago
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How do you do Mixed Numbers On Number Lines?
svlad2 [7]
Write the fraction and add the whole numbers
7 0
3 years ago
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The probability that it will rain on any given day is 15% or 0.15. Find the probability it will rain at least once in the next t
SpyIntel [72]

Answer:

1/2 * 3/5 = 3/15 = 1/5

Step-by-step explanation:

5 0
3 years ago
Write the equation of the line that passes through the points (-7,9) and (-7,1). Put your answer in fully reduced point-slope fo
gulaghasi [49]

Answer:

It is a vertical line

Step-by-step explanation:

Find the slope using rise over run (y2 - y1) / (x2 - x1)

Plug in the points:

(y2 - y1) / (x2 - x1)

(1 - 9) / (-7 + 7)

-8/0

= undefined

Dividing by 0 gives you an undefined number. This means that the slope is undefined, and the line is a vertical line.

8 0
3 years ago
Suppose that 2000 is invented at a rate of 3.5%, compounded semiannually. Assuming that no withdrawals are made, find the total
Vinvika [58]

Answer:

$2,297.76

Step-by-step explanation:

Present value: P = 2000

Future value: F

Annual interest rate: r = 3.5% = 0.035

Time: t = 4 years

Number of compounding periods per year: n = 2

F = P(1 + \dfrac{r}{n})^{nt}

F = 2000(1 + \dfrac{0.035}{2})^{2 \times 4}

F = 2000(1 + 0.0175)^{8}

F = 2000(1.0175)^{8}

F = 2000(1.148881783)

F = 2297.76

Answer: $2,297.76

6 0
3 years ago
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