3 years ago

Anyone know the answer ????????????

Mathematics

1 answer:

mr Goodwill [35]3 years ago

7 0

True is the answer your welcome

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Solve the linear system using a table.

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The correct answer is:

B. (0,1)

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Which expressions are equivalent to 6a(5+d) ?

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Answer: A is correct i think

Step-by-step explanation: 6a x 5 = 30a

6a x d = 6ad

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Suppose that a person's peak blood alcohol level is 0.07 (grams per 100 mL) and that this level decreases by 40% each hour.

Natalija [7]

Answer:

Step-by-step explanation:

Considering a person peak blood is 0.07

It decrease by 4% every hour

a) Using exponential function

$f(x) = Ca^x$

where,

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r = -0.40%

Here,

C = 0.07,

a = 1 - 0.04 = 0.06

$f(x)=0.07(0.6)^x$

<h3>Therefore, hourly decay factor is 0.6</h3>

Here the hourly decay factor is 0.6

$B(x)=ca^x\\\\0.07(0.6)^x$

c) Evaluate

$B(2)=0.07\times (0.6)^2\\\\0.07(0.36)\\\\= 0.0252g$

0.0252g or 100mL

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3 years ago

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Maria has 90$ in a saving account.The interest rate rise a 5% compounded annually.to the nearest cent, how much will he have in

-Dominant- [34]

Answer:

$104.19

Step-by-step explanation:

We will use the compound interest formula to solve this:

$A=P(1+\frac{r}{n} )^{nt}$

<em>P = initial balance</em>

<em>r = interest rate (decimal)</em>

<em>n = number of times compounded annually</em>

<em />

First, lets change 5% into a decimal:

5% -> $\frac{5}{100}$ -> 0.05

Now, plug the values into the equation:

$A=90(1+\frac{0.05}{1})^{1(3)}$

$A=104.19$

After 3 years, Maria will have $104.19

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3 years ago