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3 years ago

If $180 is invested at an interest rate of 7% per year and is compounded weekly, how

Mathematics

1 answer:

Rufina [12.5K]3 years ago

3 0

Answer:

$405.4

Step-by-step explanation:

$A= P(1+\frac{r}{100}) ^{n}$

-->180*(1+7/100)^12

-->$405.4

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3 years ago

I need to know how to solve this

Greeley [361]

Vertical angles are congruent, so
107=3x-4
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3 years ago

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Is (a + b) and (a - b)? perfect square trinomials?<br> O True<br> O False

lisabon 2012 [21]

Answer:

False

Step-by-step explanation:

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3 years ago

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Solve the following equation for X. Round your answer to four decimal places.

strojnjashka [21]

ANSWER

x = 1.2226

EXPLANATION

To solve this equation we have to apply the property of the logarithm of the base,

$\log _bb=1$

Thus, we can apply the natural logarithm - whose base is e, to both sides of the equation,

$\ln e^{4x}=\ln 133$

Now we apply the property of the logarithm of a power,

$\log a^b=b\log a$

In our equation,

$\begin{gathered} 4x\ln e^{}=\ln 133 \\ 4x^{}=\ln 133 \end{gathered}$

Then divide both sides by 4 and solve,

$\begin{gathered} \frac{4x^{}}{4}=\frac{\ln 133}{4} \\ x\approx1.2226 \end{gathered}$

The solution to this equation is x = 1.2226, rounded to four decimal places.

4 0

1 year ago

The bigger of two numbers is four more

Otrada [13]

Answer:

X=the smaller

y=the larger

The bigger of two numbers is four more than the smaller, then:

y=x+4

one more than twice the smaller is the same as the larger, then

1+2x=y

We have the following system of equations:

y=x+4

y=2x+1

We solve this system by equal values method:

x+4=2x+1

x-2x=1-4

-x=-3

x=3

We find the value of "y"now:

y=x+4

y=3+4

y=7

the values of x and y are:

x=3

y=7

Step-by-step explanation:

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4 years ago