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4 years ago

A number that uses place value and a decimal point to show part of a whole

Mathematics

1 answer:

lukranit [14]4 years ago

3 0

732.4 because just put in a decimal before a # and then do place value to a whole #.

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What does the interest rate have to be, if a bank pays interest, compounded continuously and the amount doubles in 5 years?

allochka39001 [22]

Let the original amount be A. Double that would be 2A.

Then, 2A = Ae^(r*5), or 2 = e^(5r).

Taking the natural log of both sides: ln 2 = 5r. Then r = (ln 2)/5 = 0.14

The interest rate would have to be 13.86% per year, written here as r=0.14.

3 0

3 years ago

Find the inverse of the function f(x)=2(x-4)^2

klemol [59]

Answer:

f(x)=2(x-4)^2 = 4±√x/√2

Step-by-step explanation:

8 0

3 years ago

Domain of y= 6x+13/x^2-4x-12

borishaifa [10]

Domain is the set of numbers you can subsitute for the input (in this case x) and for it to be allowed (dividing by zero is not allowed so if you have y=6/x then x is not allowed to be zero, it can be anything else though)

ok, so from experience the x^2-4x-12 part is supposed to be all under the parenthaseeese and if so, go to part AAAAAAAAAAAAA
if it isn't and only x^2 is below the fraction, then go to BBBBBBBB

AAAAAAAAA
$y= \frac{6x+13}{x^{2}-4x-12}$
so the domain must be valid
one rule that we have is that you cannot divide by zero
therefor we find what numbers make the denomenator zero and don't allow them
x^2-4x-12=0
factor
(x-6)(x+2)=0
x-6=0
x=6

x+2=0
x=-2

so since -2 and 6 make the thingummy zero, we say that

domain={all real numbers except for -2 and 6}

BBBBBBBBBBBBBBB
$y= \frac{6x-13}{x^{2}} -4x-12$

so remember that you cannot divide by zero
therefor you have to make sure the deomenator is not equal to zero by finding those values and restricting them from the solution set
so
x^2=0
squaer root both sides
x=0
domain={all real numbers except for 0}

so if the x^2-4x-12 is under the dividing line, then the answer is domain={all real numbers except for -2 and 6}

if the x^2 only is under the dividing line then the answer is domain={all real numbers except for 0}

5 0

3 years ago

A survey asked participants whether or not they were vegetarian and how important they thought saving energy was. The two-way ta

blondinia [14]

Answer:

We choose D.

Step-by-step explanation:

The question is which statement is true?

A. 33% of the people surveyed were vegetarian and though saving energy was not important

=> It is wrong because we do not know the total number of people who were surveyed.

B. This statement is wrong, because we also have 26% non - vegetarian though saving energy was not important

C. This statement is wrong, because there are 38% non - vegetarian though saving energy was not important and only 26% non - vegetarian though saving energy was very important

D. True because there are 36% non - vegetarian though saving energy was somewhat important while there are 17% vegetarian think so. Hence, a person who was not a vegetarian was morel likely than a vegetarian to think that saving energy is somewhat important

=> We choose D.

8 0

3 years ago

Somebody answer plz and thanks if u do

Katarina [22]

Answer:

y=-3, x=3

Step-by-step explanation:

step by step in picture

everything you asked for is in the picture

4 0

3 years ago