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3 years ago

Describe two reasons for using a variable. Write your response using 4-5 complete sentences.

1 answer:

6 0

One reason would be if you did not know the answer so you could do
4-5=x
another reason would be if the problem gave you the answer but not one of the things to get the answer
4-x=-1
not sure if that is what you want but I hope this helped

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You deposit $20,000 in an account that pays 7.77% annual interest. Find the balance after 2 years when the interest is compounde

Mademuasel [1]

Answer:

The account balance after 24 months will be $23,092.70

Step-by-step explanation:

Given data

P= $20,000

r= 7.77%= 0.077

t= 2 years

A= ?

n= 24

The compound interest formula is

$A= P(1+t)^t$

Inserting our values to solve for A we have

$A= 20000(1+\frac{0.077}{24} )^2^*^2^4\\\\A= 20000(1+0.003 )^2^*^2^4\\\\A= 20000(1.003 )^2^*^2^4\\\A= 20000(1.003 )^4^8\\\A= 20000*1.15463517818\\\A= 23092.7035636\\\A= 23,092.70$

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4 years ago

Find the value of f(-2)

ELEN [110]

$f(x)=\left\{\begin{array}{ccc}x^2&if\ x\leq1\\1&if\ 1 \ \textless \ x \leq2\\2-x&if\ 3 \ \textless \ x \leq6\end{array}\right\\\\f(-2)=?\\\\-2\leq1\ therefore\ f(x)=x^2\\\\subtitute\\\\f(-2)=(-2)^2=4$

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3 years ago

Lisa, Bill and Destiny had their arms measured. They compared them to a standard of 22 inches. Order these rational numbers from

Len [333]

Your Answer Is: Bill, Destiny, Lisa

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3 years ago

Select the equation of the line that passes through the point (5,7) and is perpendicular to the x = 4

Kamila [148]

Answer:

y= -1*x +12

Step-by-step explanation:

x=4 is a function that always has the value 4 for the x-axis, no matter y variable, this a vertical function.

Perpendicular Lines are those with the following condition:

y=a*x+b (1)

y=c*x+d (2)

Where a and c are the respective slope

If These two lines are perpendicular, then

a=- 1/c

Using those principles we have that the slope for our needed line has to be -1, since the slope for the first line is 1 (the coefficient of x is 1, in the line x=4)

Lets use the given point (5,7) in the equation (2)

7=-1 * 5 + d

resulting d=12

so, our equation for the line is y= -1*x +12

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4 years ago

What is the scale factor that take triangle XYZ to X'Y'Z'?

skelet666 [1.2K]

The scale factor that takes triangle XYZ to X’Y’Z’ is 2.

6 0

3 years ago

Read 2 more answers