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4 years ago

What numbers make 225 when multiplying

1 answer:

5 0

There are many possibilities (fractions, decimals etc.), so I will list a few of the whole numbers that have a product of 225.

1x225
3x75
5x45
9x25
15x15

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The displacement, d, in millimeters of a tuning fork as a function of time, t, in seconds can be modeled with the equation d = 0

Lostsunrise [7]

Answer:

The frequency of the tuning fork is 1760 Hz.

Step-by-step explanation:

Suppose we have a sine function in the following format:

$y = A\sin{Bx + C}$

The period is:

$T = \frac{2\pi}{B}{/tex]The frequency, in Hz, is:[tex]F = \frac{1}{T}$

In this question:

$d = 0.6\sin{3520\pi t}$

$B = 3520\pi, T = \frac{2\pi}{3520} = \frac{2}{3520}, F = \frac{1}{T} = \frac{1}{\frac{2}{3520}} = \frac{3520}{2} = 1760$

The frequency of the tuning fork is 1760 Hz.

5 0

3 years ago

Gave needs 60 liters of 40% acid solution he currently has 20% solution and 50% solution how many liters of each does he need to

Rudiy27

$\bf \begin{array}{lccclll}
&amount&concentration&
\begin{array}{llll}
concentration\\
amount
\end{array}\\
&-----&-------&-------\\
\textit{20\% sol'n}&x&0.20&0.20x\\
\textit{50\% sol'n}&y&0.50&0.50y\\
-----&-----&-------&-------\\
mixture&60&0.40&(60)(0.40)
\end{array}$

notice above... we use the decimal format for the percentage, thus 20% is really just 20/100, 40% is 40/100 and so on.

so.. whatever "x" and "y" amounts are, we know they have to add up to 60 Liters, that is x+y = 60

and whatever the concentration amount of each is, it must add up to (60)(0.40), that is 0.20x+0.50y=(60)(0.40)

thus $\bf \begin{cases}
x+y=60\implies \boxed{y}=60-x\\\\
0.20x+0.50y=(60)(0.40)\\
----------\\
0.20x+0.50\left( \boxed{60-x} \right)=(60)(0.40)
\end{cases}$

solve for "x", to see how much of the 20% solution will be needed

what about "y"? well, y = 60 - x

7 0

3 years ago

Which Congruence Statement Is Correct For These Triangles?

Stella [2.4K]

Answer:

D. ABC = DBC

Step-by-step explanation:

They are the same length and congruent.

6 0

3 years ago

Read 2 more answers

your neighbor needs to put a fence around her front yard and separate fence around her back yard. her front yard is 65 long and

kipiarov [429]

65 x2 = 130
45 x2= 90
35 x2 = 70
45 x2= 90
total = 380 feet

4 0

3 years ago

The equation y = 2.50x determines the total cost, y, of buying carnival tickets

statuscvo [17]

Step-by-step explanation:

The given equation or expression is used to determine the total cost of buying carnival tickets.

the total cost is y

Also from the expression the cost of a ticket is $2.5

and x represents the number of tickets

now say x=5, that is 5 tickets, then the cost of buying the 5 tickets is given as

y=2.5(5)

y=12.5

Hence the cost of 5 tickets is $12.5

4 0

3 years ago