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Arturiano [62]
3 years ago
14

Im drowning. pls help. ​

Mathematics
1 answer:
oksian1 [2.3K]3 years ago
7 0

Answer:

a.) (x-10)(x+4)

Step-by-step explanation:

x^2-6x-40

Find two numbers that add up to -6 and multiply to -40 (you will most likely need a negative and a positive because -40):

-10 and 4

Factor:

(x-10)(x+4)

Finito.

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s344n2d4d5 [400]

Answer:

Answer is 0.44

Step-by-step explanation:

44/100=0.44

3 0
2 years ago
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Which of the following is a solution of x2 + 2x + 8?
zubka84 [21]
Using the quadratic equation we get:
\frac{ - 2 + - \sqrt{4 - 32} }{2} = \frac{ - 2 + - \sqrt{ - 28} }{2}

Factoring out 2 we get
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4 0
3 years ago
A culture started with 5,000 bacteria. After 2 hours, it grew to 6,500 bacteria. Predict how many bacteria will be present after
lesya [120]
This can be expressed as exponential growth of the form:

f=ir^t, f=final amount, i=initial amount, r=common ratio (rate), t=time

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1.3=r^2  take the square root of both sides and note that we know r>0

r=1.3^(1/2) so our equation becomes:

f=5000(1.3)^(1/2)^t  and knowing that (a^b)^c=a^(b*c) we can say:

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7 0
3 years ago
— 2y – Зу +8 = 8 — 5у – 12
jasenka [17]

Answer:

No Solution.

Step-by-step explanation:

Equality equation:

— 2y – Зу +8 = 8 — 5у – 12  (Given)

-5y + 8 = -4 - 5y (distributive property of equality)

-5y = -12 - 5y (subtraction property of equality)

= -12 (addition property of equality)

when you add 5y on both sides it cancels the 5y out, it's no solution.

<em><u>Ace-The Kid Laroi</u></em>

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scoundrel [369]
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3 years ago
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