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LenKa [72]
3 years ago
8

100.00=137.76/(1+r)^5 solve for r thanks much

Mathematics
1 answer:
Feliz [49]3 years ago
5 0
(1+r)^5=137.76/100
1+r=(137.76/100)^(1/5)
R=(137.76/100)^(1/5))-1
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Please help with these questions
Elis [28]
Obviously, what you looking for is slopes. Now let's get started. 
6.) 7x-5y=20 You subtract 7x both sides.
    -7x      -7x
-5y=-7x+20  Then you divide -5 both sides (which is include -7 and 20).
y=7/5x-4 Simplify.
-8x-3y=12 Add 8x both sides because it's a negative number.
+8x    +8x
-3y=8x+12 Divide -3 both sides.
y=-8/3x-4 Simplify.
 And your point value is (0,-4).
7.) -x-4y=12 Add x both sides.
     +x     +x
-4y=x+12 Divide -4 both sides.
y=-1/4x-3 Simplify.
20x+80y=0 Subtract 20x both sides.
-20x      -20x
80y=-20x Divide 80 both sides. Here's a hint: 20/80 is same thing as 2/8, so 
                you don't have to do all that. 
y=1/4x Simplify. Here's another hint: I bet you wondering there's no y-                         intercept. The y-intercept is (0,0).
Both of the functions are parallel, so there's no solution. 
8.) 30x+50y-100=0 Add 100 both sides.
                +100  +100
30x+50y=100 Subtract 30x both sides. 
-30x       -30x
50y=-30x+100 Divide 50 both sides.
y=-3/5x+2 Simplify.
3x-15y-30=0 Add 30 both sides.
          +30 +30
3x-15y=30 Subtract 3x both sides.
-3x      -3x
-15y=-3x+30 Divide -15 both sides.
y=1/5x-2 Simplify.
And your point value is (5,-1).
I hope it helps.
6 0
3 years ago
In 2005, 0.76% of all airline flights were on-time. If we choose a simple random sample of 2000 flights, find the probability th
marissa [1.9K]

Answer:

Step-by-step explanation:

Here X no of flight that reach on time has two outcomes only and each trial is independent of the other.

Since sample size is large we approximate to normal with mean =np and variance =npq

i.e. X is N(152,19.10)

Z=\frac{x-152}{19.1} is used for converting to std normal variate

Continuity correction of 0.5 on either side of interval would be applied for x

a) P(X\geq 79%) = P(X\geq 1580)\\=P(X\geq 1579.5)\\=P(Z\geq 3.12)

=0.00

b)P(X\leq 1580)\\=P(X\leq 1580.5)\\=P(Z\leq 3.17)\\==1.00

c) p is N(0.76, sqrtpq/n)=N(0.76,0.0095)

P(p diff>0.03) =

P(Z>\frac{0.03}{0.0095} \\=P(Z>3.16)=0.00

7 0
4 years ago
❤️ i need this last question
spayn [35]

Answer: 10\left(\cos90^{\circ}+i\sin90^{\circ}\right)

Step-by-step explanation:

Given

The complex number is z_1=0+10i

Complex number in polar form is given by

z=r\left(\cos \theta +i\sin \theta\right)

Compare it with the given complex number

r=10 and \sin \theta=1 which implies \theta must be 90^{\circ}

So, in the polar form, it is

z_1=10\left(\cos90^{\circ}+i\sin90^{\circ}\right)\\z_1=10e^{i\frac{\pi}{2}}

4 0
3 years ago
What is the length of CD ? In this diagram ABC EDC ?<br> Please help !!!!
n200080 [17]
Answer:
CD = x = 4 units

Explanation:
We are given that the two triangles are similar. This means that we can set the similarity proportionality as follows:
\frac{BC}{CD} =  \frac{CA}{CE} =  \frac{AB}{ED}

W e have:
BC = 20 - x
AC = 20
CD = x
CE = 5

Substitute in the above proportionality and solve for x as follows:
\frac{20-x}{x} =  \frac{20}{5} = 4

4x = 20 - x
5x = 20
x = 4

Based on he above:
CD = 4 units
BC = 20 - x = 20 - 4 = 16 units

Hope this helps :)
5 0
3 years ago
Read 2 more answers
approximately 13% of the USA population is left handed. Hiw many lefties would expect in a school of 420 students​
Alex Ar [27]

Answer:

Approximately 55 students

Step-by-step explanation:

13% of 420 is 54.6 which you can then round up to 55

Hope this helped!

3 0
4 years ago
Read 2 more answers
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