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3 years ago

I need qestion number d) solution please help me

Mathematics

1 answer:

natita [175]3 years ago

8 0

Answer:

It is an identity, the proof is in the explanation

Step-by-step explanation:

csc(A)-cot(A)=tan(A/2)

I'm going to start with right hand side

tan(A/2)=(1-cos(a))/(sin(a)) half angle identity

tan(A/2)=1/sin(a)-cos(a)/sin(a) separate fraction

tan(A/2)=csc(a)-cot(a) reciprocal and quotient identities

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No irrational numbers are whole numbers. True or false and why?

Luda [366]

Hi!

Irrational numbers cannot be whole numbers. In order to be a whole number, you cannot have any decimals or fractions. Irrational numbers possess these properties.

Hopefully, this helps! =)

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3 years ago

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Every month Jimmy makes $170 in mowing lawns. He divides his money into two equal amounts and spends one part. The other part go

elena55 [62]

Answer:

$1020

Step-by-step explanation:

1/2 of 170 is 85.

85 x 12 = 1020

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3 years ago

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What is 7.75 in word form?

pickupchik [31]

Seven and seventy-five hundredths

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3 years ago

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you have three fifths of a pie you divide the remaining pie into 5 equal slices what fraction of the original Post in each slice

Savatey [412]

So you divide $\frac{3}{5}$ by 5:
$\frac{3}{5}$ ÷ $\frac{5}{1}$ which is:
$\frac{3}{5}$ × $\frac{1}{5}$ = $\frac{3}{25}$

So your answer is: $\frac{3}{25}$

4 0

3 years ago

Yolanda deposits $300 per month in an account with an APR of 6%, while Zach deposits $3600 at the end

bonufazy [111]

Answer:

Yolanda will have a balance of $34,043.10 in 14 years.

Step-by-step explanation:

This is an Ordinary annuity question where you pick the hint from the equal and recurring monthly payment.

To find the Future value of Yolanda's savings after 14 years, use Future value of annuity formula FVA = $\frac{PMT}{r}[1-(1+r)^{-t} ]\\$

PMT= recurring payment = $300

r = discount rate; monthly rate in this case = 6% / 12 =0.5% or 0.005 as a decimal.

t = total duration ; 14 *12 = 168 months

Next, plug in the numbers into the FVA formula;

FVA = $\frac{300}{0.005} [ 1-(1+0.005)^{-168} ]$

FVA = 60,000 * 0.5673849

FVA = 34,043.0969

Therefore, Yolanda will have a balance of $34,043.10 in 14 years

7 0

4 years ago

I need qestion number d) solution please help me​

I need qestion number d) solution please help me