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Zolol [24]
3 years ago
15

I need help solving this problem

Mathematics
1 answer:
Elena L [17]3 years ago
4 0
Use the given values in the compound interest formula to solve for time, n.

A is the final amount of money, $2800
P is the initial or starting amount $1900
i is the interest rate as a decimal 0.025
n is time in years since it annual.

2800 = 1900(1 + 0.025)^n

2800 = 1900(1.025)^n

2800/1900 = (1.025)^n

28/19 = (1.025)^n

take the natural log of both sides to solve for exponent.

ln(28/19) = ln(1.025^n)

power rule of logarithmic moves exponent

ln(28/19) = n*ln(1.025)

ln(28/19) / ln(1.025) = n

put into a calculator

15.7 years = n
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NEED HELP ASAP!!!! trigonometric ratios !!!
nordsb [41]

Answer: 47°

To find the answer, you must use sin⁻¹ (INVERSE SIN) to find x which is the reference angle.

If you look at the triangle, you can tell that we must use sin because we have an opposite (39) and an hypotenuse length (53).

Sine = OPPOSITE/Hypotenuse

So you use a calculator and insert sin⁻¹ 39/ 53.

Or depending on your calculator you could insert 39/ 53, then sin after it.

The calculator would give you  <u>47.379009047.</u>

But you have to round 47.379009047 to the nearest degree, so your answer is 47°.

8 0
3 years ago
PLEASE HELP ME ASAP !!!!​
goblinko [34]

Answer:

Same:

A 50% decrease followed by a 100% increase.

A 33 1/3% decrease followed by a 50% increase.

Less:

A $25 increase followed by a $30 decrease.

A 20% increase followed by a 25% decrease.

Greater:

An 80% increase followed by a 40% decrease.

3 0
3 years ago
Read 2 more answers
Which shows two triangles that are congruent by aas?
Serga [27]

Answer:

(A) shows two triangles that are congruent by AAS. AAS (Angle-Angle-Side) postulate states that if two angles and the non-included side one triangle are equal to the two angles and the non-included side of the another triangle, then the two triangles are said to be congruent.

https://www.google.com/search?q=Which+shows+two+triangles+that+are+congruent+by+aas?&tbm=isch&source=iu&ictx=1&fir=XtxdAOttHLP1AM%253A%252Cbcu8iEfynp4JLM%252C_&vet=1&usg=AI4_-kQGedO-5bkr972XF-k3CYUquioH8Q&sa=X&ved=2ahUKEwjUlZKC08njAhUxh-AKHXeFBusQ9QEwAHoECAUQAw#imgrc=XtxdAOttHLP1AM:

7 0
4 years ago
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What is the value of g?<br> 3/5g - 1/3 = -10/3
marshall27 [118]
3/5g-(1/3)=(-10/3)
move the 1/3 over
3/5g=(-10/3)+(1/3)   (notice the + sign)
3/5g= (-9/3)
3/5g=(-3)
move the 3/5 over (divide)
g= (-3/(3/5))
g= (-3x5/3)
g= -15/3
g= -5
8 0
4 years ago
The sum of the following geometric series.<br> 7-56+448-3,584+... when n=11
faust18 [17]

Answer:

A. 6.681.060.239

Step-by-step explanation:

a1 = 7

r = (-8)

n= 11

S11 = 7((-8)^11 - 1)/ (-8-1)

= -7/9 ( -8,589,934,591)

= 6.681.060.239

6 0
3 years ago
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