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prisoha [69]
3 years ago
7

(a+13)(a-8) using standard formulae expand​

Mathematics
1 answer:
Viktor [21]3 years ago
4 0
The answer is a^2 + 5a - 104 I think
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Find the value of the variable.
Bezzdna [24]
X= 4. You get this by setting the two equations equal to each other and isolating the variable and the constant.
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3 years ago
A person invests 3500 dollars in a bank. The bank pays 4.75% interest compounded
erastova [34]

9514 1404 393

Answer:

  10.7 years

Step-by-step explanation:

The formula for the balance in an account earning compound interest is ...

  A = P(1 +r/n)^(nt)

where principal P is invested at annual rate r compounded n times per year for t years. We want to solve for t.

  5800 = 3500(1 +0.0475/4)^(4t)

  58/35 = 1.011875^(4t) . . .  divide by 3500 and simplify a bit

  log(58/35) = 4t·log(1.011875) . . . . take logs

  t = log(58/35)/(4·log(1.011875)) . . . . divide by the coefficient of t

  t ≈ 10.6966 ≈ 10.7

The person must leave the money n the bank for about 10.7 years for it to reach $5800.

6 0
2 years ago
Ten times the sum of four and three
Step2247 [10]

the answer is

10 × (4+3) = 70

5 0
3 years ago
I need this answered
const2013 [10]

Answer:

D. Infinite solutions

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Answer:

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Step-by-step explanation:

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