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trapecia [35]
3 years ago
15

two investments earn an annual income of $645. an investment earns an annual simple interest rate of 7.7%, and the other investm

ent earns an annual simple interest rate of 6.9%. the total amount invested is $9000. how much is invested in each account?
Mathematics
1 answer:
Andreas93 [3]3 years ago
6 0
In how many months or years if just one month a little under 3000 each
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nexus9112 [7]

Answer:

B

Step-by-step explanation:

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3 years ago
Which function has zeros at x = -2 and x = 5?
riadik2000 [5.3K]

Answer:

<em>f(x)=x²-3x-10</em>

Step-by-step explanation:

\begin{gathered}f(x) = x {}^{2} - 3x - 10 \\ to \: find \: x \: intercept \:o r \: zero \: substitute \: f(x) = 0\: \\ 0 = x {}^{2} - 3x - 10 \\ x {}^{2} - 3x - 10 = 0 \\ x {}^{2} + 2x - 5x - 10 = 0 \\ x(x + 2) - 5x - 10 = 0 \\ x(x + 2) - 5(x + 2) = 0 \\ (x + 2).(x - 5) = 0 \\ x + 2 = 0 \\ x - 5 = 0 \\ x = - 2 \\ x = 5\end{gathered}

f(x)=x

2

−3x−10

tofindxinterceptorzerosubstitutef(x)=0

0=x

2

−3x−10

x

2

−3x−10=0

x

2

+2x−5x−10=0

x(x+2)−5x−10=0

x(x+2)−5(x+2)=0

(x+2).(x−5)=0

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therefore the zeros of the equation are x₁=-2,x₂=5

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1 year ago
Write in exponential notation: 301=​
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Answer:

3.01 * 10^2

Step-by-step explanation:

=)

Hope this helps!

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