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kobusy [5.1K]
3 years ago
15

A person invests 3500 dollars in a bank. The bank pays 6.25% interest compounded annually. To the nearest tenth of a year, how l

ong must the person leave the money in the bank until it reaches 11100 dollars?
Mathematics
1 answer:
olya-2409 [2.1K]3 years ago
8 0
18.328 or 18.3 years
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The following triangles are similar. Find x
aleksandrvk [35]

Answer:

15

Step-by-step explanation:

if 3x3 is 9 and 4x3 is 12 then 5x3 is 15

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3 years ago
A basketball gymnasium is 25 meters high, 80 meters wide and 200 meters long. We want to connect two strings, one from each of t
Rudiy27

Answer:

a) the centre is at (12.5 m, 40 m , 100 m ) with respect to our position

b) the length of the strings S will be 216.85 m

c) the angle that is formed by the strings is  1.23 rad

Step-by-step explanation:

assuming that we stand on one of the corners on the floor , so our coordinates are (0,0,0)  , then the coordinates of the center of the gymnasium   are found through

x center = (25 + 0)/2 = 12.5 m

y center = (80+ 0)/2 = 40 m

z center = (200+ 0)/2 = 100 m

then the centre is at (12.5 m, 40 m , 100 m ) with respect to our position

b) the length of the strings S will be the modulus of the vector that points from our position to the diagonally opposite corners

|S| = √(25²+80²+200²) = 216.85 m

c) the angle can be found through the dot product of the vectors that represent the strings S₁ and S₂

S₁ =(25,80,10)

S₂ =(-25,80,100)

then

S₁*S₂ = 25*(-25) +80*80 + 100*100 = 15775

but also

S₁*S₂ = |S₁||S₂| cos θ = |S|² * cos θ

S₁*S₂ =  |S|² * cos θ

cos θ= S₁*S₂/|S|²

θ= cos ⁻¹ ( S₁*S₂/|S|² ) = cos ⁻¹ [15775/(25²+80²+200²)] = 1.23 rad

7 0
2 years ago
River C is 400 miles longer than River D. If the sum of their lengths is 5 comma 520 ​miles, what is the length of each​ river?
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If the sum of their lengths is 5,520 miles then River D is 2360 and River C is 3160
4 0
3 years ago
a circus grower ships grapefruit in boxes of 10.one season the grower shipped 20400 boxes of grapefruit. how many grapefruit wer
AveGali [126]
Its      20400
          ×   10
    
That equals 204,000. Hope I helped.
3 0
3 years ago
What is the surface area of a cylinder with base radius 3 and height 6?
Nikolay [14]

Answer:

I think the answer is 169.65

6 0
3 years ago
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