Find the degree of the angles whose sine is -1/2 (that's a fraction)

Bond [772]

False, this statement is not true, because if you change the parenthesis, it means that you will do that thing first (PEMDAS)
Therefore, the sstatement is false, because the answers will be completely different,

hope this helps

5 0

3 years ago

Please help :) this is exponential decay 10 pts

VMariaS [17]

$50.00 after 0 months and $37.50 after 6 months.
We first must calculate half-life using the attached formula.
Half-Life = (time * ln(2)) / ln (beginning amount/ending amount)
Half-Life = (6 * 0.69314718056) / ln (50.00 / 37.50)
Half-Life = ( 4.1588830834 ) / ln ( 1.3333333333 )
Half-Life = ( 4.1588830834 ) / 0.28768207245
Half-Life = 14.456525038 months

Now we need to calculate "lambda"
lambda = ln(2) / half-life
lambda = 0.69314718056 / 14.456525038
lambda = 0.0479470121 

Next we have to use this formula:
Ending Amount = beginning amount • e^( -lambda • time )
(where "e" is the mathematical constant 2.718281828...)
Ending Amount = 50 * 2.718281828^(-0.0479470121*24 months)
Ending Amount = 50 * 2.718281828^(-1.1507282904)
Ending Amount = 50 * 0.3164062499 
Ending Amount = 15.82 dollars

**********************************************************************
As a DOUBLE-CHECK we can work this out every 6 months:

0 months $50
6 months = $50 - (50 *.25) = 37.50
12 months = $37.50 -(37.50 *.25) = 28.125
18 months = $28.125 -(28.125 * .25) = 21.09375 
24 months = $21.09375 -(21.09375 * .25) = 15.8203125 

You'll find this page quite helpful:
http://www.1728.org/halflif2.htm

5 0

3 years ago

Read 2 more answers

Can anyone help with this problem??

marishachu [46]

Answer:

blue line : y = 3

black horizontal line : y = 0

black vertical line : x = 0

Step-by-step explanation:

it is really simple.

blue line : no matter what value we pick for x, the functional value for y is always 3. and that defines the equation y = 3 + 0*x or simply y = 3.

the same with the black horizontal line. the difference is that y is now always 0. so, y = 0.

7 0

3 years ago

0 Example: Loan payments of $400 due 95 days ago and $700 due today

guapka [62]

Answer:

$X=\$519.48$

Step-by-step explanation:

From the question we are told that

Loan 1 $X_1=\$400$

Loan 1 due $t_1=95days$

Loan 2 $X_2=\$700$

Loan 2 due $t_2=0days$

Payment $Y=\$600$

Worth of money $w=6\%$

Payment due $t=30days$

Focal date $t_f=125days$

Generally $\$400$ was due 95days ago

Therefore

$125+90=220days$ (total days to consider)

Therefore

$300+400 =700$ is due today

125days left

Given

600 due in 30days

$125-30=95days$

Generally the Final payment is mathematically given by

$400(1+ 0.06*\frac{220}{365} ) + 700(1+0.06*\frac{125}{365} )=600(1+0.06*\frac{95}{365} )+X$

$X=1128.9692 - 609.3698$

Therefore the

$X=\$519.48$

3 0

3 years ago

Who can be good role models?

Natasha_Volkova [10]

Answer:

A good role model is someone who is always positive, calm, and confident in themselves. You don't want someone who is down or tries to bring you down. Everyone likes a person who is happy with their achievements, but continues to strive for bigger and better objectives. Don't be afraid to be unique. A good role model is someone who is kind, but firm in their ways. He or she is humble, loving, caring, and always willing to help.

Step-by-step explanation:

8 0

3 years ago