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4 years ago

What type of problem is 5-(-3)?

Mathematics

1 answer:

Over [174]4 years ago

5 0

The coordinator graph I’m guessing
Maybe I could add a little more explanation
hope this help lol if not I’m sorry

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Find the doubling time of an investment earning 8% interest if interest is compounded continuously. The doubling time of an inve

Vitek1552 [10]

Answer:

Step-by-step explanation:

Using FV = PV(1 + r)^n where FV = future value, PV = present value, r = interest rate per period, and n = # of periods

1/PV (FV) = (PV(1 + r^n)1/PV divide by PV

ln(FV/PV) = ln(1 + r^n) convert to natural log function

ln(FV/PV) = n[ln(1 + r)] by simplifying

n = ln(FV/PV) / ln(1 + r) solve for n

n = ln(2/1) / ln(1 + .08) solve for n, letting FV + 2, PV = 1 and rate = 8% or .08 compound annually

n = 9

n = ln(2/1) / ln(1 + .08/12) solve for n, letting FV + 2, PV = 1 and rate = .08/12 compound monthly

n = 104 months or 8.69 years

n = ln(2/1) / ln(1 + .08/365) solve for n, letting FV + 2, PV = 1 & rate = .08/365 compound daily

n = 3163 days or 8.67 years

Alternatively

A = P e ^(rt)

Given that r = 8%

= 8/100

= 0.08

2 = e^(0.08t)

ln(2)/0.08 = t

0.6931/0.08 = t

t= 8.664yrs

t = 8.67yrs

Which ever approach you choose to use,you will still arrive at the same answer.

5 0

4 years ago

The cost of Jacquie's gym membership is $20 per month. Jacquie gets a 10% discount of the monthly cost in any month in which she

Taya2010 [7]

$2

10%->.10

20x0.10=(2)
Jacquie saves up $2 if she refers a friend.

6 0

3 years ago

Pls solve part b) iii thanks

Viktor [21]

The bearing of the tree from Q is 296.565°

<h3>How to determine the height of the tree?</h3>

The figure that illustrates the bearing and the distance is added as an attachment

The given parameters are:

Base of the tree, b = 50 meters

Angle (x) = 32 degrees

Calculate the height (h) of the tree using:

tan(x) = height/base

So, we have:

tan(32°) = h/50

Make h the subject

h= 50 × tan(32°)

Evaluate

h = 31.24

Hence, the height of the tree is 31.24 meters

<h3>How to determine the distance between Q and the base of the tree?</h3>

The distance (d) between Q and the base of the tree

This is calculated using the following Pythagoras theorem

d = √(100² + 50²)

Evaluate

d = 111.80

Hence, the distance between Q and the base of the tree is 111.80 meters

<h3>How to determine the angle of elevation?</h3>

The angle of elevation (x) using the following tangent trigonometric ratio

tan(x) = h/d

This gives

tan(x) = 31.24/111.80

Evaluate the quotient

tan(x) = 0.2794

Take the arc tan of both sides

x = 15.61

<h3>The bearing of the tree from Q </h3>

This is calculated using:

Angle of bearing = 270 + arctan(50/100)

Evaluate the arc tan

Angle of bearing = 270 + 26.565

Evaluate the sum

Angle of bearing = 296.565

Hence, the bearing of the tree from Q is 296.565 degrees

Read more about bearings at:

brainly.com/question/24142612

#SPJ1

4 0

2 years ago

What does y equal in y/-3 =1/6? PLEASE HELP WILL GOVE BRAINLIEST

kipiarov [429]

Y=-1/2

Multiply the numerator of the first fraction by the denominator of the second fraction. Set this equal to the product of the denominator of the first fraction and the numerator of the second fraction.<span><span>(y)</span>⋅<span>(6)</span>=<span>(−3)</span>⋅<span>(1<span>)

</span></span></span>Simplify the left side.<span><span>6y=<span>(−3)</span>⋅<span>(1)</span></span><span>6y=<span>(-3)</span>⋅<span>(1)</span></span></span>
Simplify the right side.<span><span>6y=−3</span><span>6y=-3</span></span>
Divide each term by <span>66</span> and simplify.y=-1/2

5 0

4 years ago

7w -17=46 need help thanks

murzikaleks [220]

Answer:

w=9

Step-by-step explanation:

7w -17=46

Add 17 to each side

7w -17+17=46 +17

7w = 63

Divide each side by 7

7w/7 = 63/7

w=9

3 0

3 years ago

Read 2 more answers