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3 years ago

Which group of numbers is listed from least to greatest?

Mathematics

2 answers:

LuckyWell [14K]3 years ago

7 0

|-4|, 5, |-6|, 7, |-8|

Oksi-84 [34.3K]3 years ago

3 0

He fourth one: 4,5,6,7,8...if it has those two bars || it means absolute value which basically means if its negative you just change it to a posotive :)

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f(x)=x^2-x-1 , average rate of change of f over interval -2 greater than or equal to x less than or equal to 1

SCORPION-xisa [38]

The average rate of change within the function f(x)= $x^{2} -x-1$ is -2.

Given The function f(x)= $x^{2} -x-1$

We have to search out the typical rate of change of function within the interval (-2,1).Interval is largely a variety between numbers lying on the quantity line which may be a line on which different numbers are plotted.

We know that average rate of change =f(b)-f(a)/(b-a)

we have to first know the values of function at different values of x.

f(x)= $x^{2} -x-1$

f(1)=1-1-1

=-1

f(-2)=4+2-1

b=-2

a=1

put within the formula:

A=-1-5/1+2

=-6/3

=-2

Hence average rate of change of the function within the interval (-2,1) is -2.

Learn more about average at brainly.com/question/20118982

#SPJ10

3 0

2 years ago

Kristen invests $5,745 in a bank. The bank pays 6.5% interest compounded monthly. How long must she leave the money in the bank

s344n2d4d5 [400]

formula is $A=P(1-\frac{r}{n})^{nt}$

where A=final amount

P=principal

r=interest rate in decimal

n=number of times per year it is compounded

t=time in years

we want to find where

A=2P

and P=5745

and r=6.5%=0.065

n=monthly=12

remember that $ln(x^a)=a(ln(x))$

also that $(a^b)^c=a^{bc}$

$2(5745)=5745(1+\frac{0.065}{12})^{12t}$ , solving for t

divide both sides by 5745 to simplify things a bit

$2=(1+\frac{0.065}{12})^{12t}$ I'd rather not simplify this because it give us a decimals and those aren't exact, if we combine, we get 12.065/12 for inside parenthases