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3 years ago

Put these numbers in order from greatest to least.

Mathematics

1 answer:

Lesechka [4]3 years ago

6 0

Answer: $3\frac{21}{30} ,3\frac{14}{28},\frac{15}{25},0.5,-0.7$

Step-by-step explanation:

$-0.7=-0.7\\\\3\frac{21}{30}=3.7\\\\3\frac{14}{28}=3.5\\\\0.5=0.5\\ \\\frac{15}{25}=0.6$

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1/(5 + 3sqrt(5))<br><br><br>help me plzzzzz

fgiga [73]

Answer:

sqrt(5)/29

Step-by-step explanation:

1/(5 + 3sqrt(5))

= 1/(5 + 3sqrt(5)) x sqrt(5)/sqrt(5)

= sqrt(5)/(5 + 3 x 8)

= sqrt(5)/ 29

4 0

3 years ago

Dash …. × (-25) = ( -25)

Natalija [7]

Answer:

x=1

Step-by-step explanation:

×(-25)= -25

-25x = -25

-25x/-25 = -25/-25

x= 1

5 0

3 years ago

(x+1)^2 . (x^2+1) = 0

Maurinko [17]

Answer:

$x^4+2x^3+2x^2+2x+1$

Step-by-step explanation:

Given that,

$(x+1)^2 . (x^2+1) = 0$

We know that, $(a+b)^2=a^2+b^2+2ab$

So,

$(x+1)^2=x^2+1+2x$

So,

$(x+1)^2 . (x^2+1) = (x^2+1+2x)(x^2+1)\\\\=x^2\times x^2+x^2+2x^3+x^2+1+2x\\\\=x^4+2x^3+2x^2+2x+1$

So, the value of the given expression is equal to $x^4+2x^3+2x^2+2x+1$

8 0

3 years ago

The savings in a bank account can be modeled using S = 1250e^0.45t, where t is the number of years the

morpeh [17]

Using the given exponential function, it is found that it will take 1.5 years for the amount of savings to double from the initial amount deposited of $1250.

<h3>Exponential function:</h3>

The <em>exponential function</em> that models the savings in the bank account is given by:

$S(t) = 1250e^{0.45t}$

In which t is the time in years that the money has been in the account.

The time to double from the initial amount deposited of $1250 is t for which S(t) = 2(1250) = 2500, hence:

$S(t) = 1250e^{0.45t}$

$2500 = 1250e^{0.45t}$

$e^{0.45t} = \frac{2500}{1250}$

$e^{0.45t} = 2$

$\ln{e^{0.45t}} = \ln{2}$

$0.45t = \ln{2}$

$t = \frac{\ln{2}}{0.45}$

$t = 1.5$

It will take 1.5 years for the amount of savings to double from the initial amount deposited of $1250.

To learn more about exponential functions, you can take a look at brainly.com/question/14855561

8 0

3 years ago

In ΔABC, the measure of ∠C=90°, the measure of ∠B=15°, and BC = 2.8 feet. Find the length of CA to the nearest tenth of a foot.

8090 [49]

Answer:0.8 feet

Step-by-step explanation:got it right

7 0

3 years ago