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GuDViN [60]
3 years ago
12

An investor has an account with stock from two different companies. Last year, her stock in Company A was worth $5750 and her st

ock in Company B was worth $1200. The stock in Company A has decreased 16% since last year and the stock in Company B has decreased 2%. What was the total percentage decrease in the investor's stock account?
Mathematics
1 answer:
V125BC [204]3 years ago
8 0

Answer:13.6%

Step-by-step explanation: I got the same problem and pressed give up.

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Simplify (2x - 2y) (2y + 8) =?
Alika [10]

Answer:

it is 4xy-4y^2+16x-16y

Step-by-step explanation:

My method is to "square them"

2x.          -2y.      

                         2y

                         8

2x * 2y

2x * 8

-2y*2y

-2y * 8

and add all the products together

6 0
3 years ago
Read 2 more answers
HELP, it looks blurry sorryyy! 15 pointss
Step2247 [10]
The first and last one are true!
8 0
2 years ago
What is the circumference of the circle that circumscribes a triangle with side lengths 3, 4, and 5?
djyliett [7]

Answer:

  5π, about 15.708 units

Step-by-step explanation:

A 3-4-5 triangle is a right triangle. When a circle circumscribes a right triangle, the hypotenuse is the diameter of the circle. The circumference of a circle is given by ...

  C = πd

For a diameter of 5 units, the circumference is ...

  C = π(5) = 5π = 15.708 . . . units

_____

<em>Additional comment</em>

The (3, 4, 5) triple is one of the first Pythagorean triples you run across. It is the smallest integer triple, and the only primitive triple with values in an arithmetic sequence. You can show this is a Pythagorean triple by ...

 3² + 4² = 9 +16 = 25 = 5²

That is, these numbers satisfy the Pythagorean theorem relation for sides of a right triangle.

6 0
2 years ago
Simplify the expression:<br> sinx+cosx/sinxcosx
Keith_Richards [23]
Sin x + \frac{cos x}{sinx cosx}
= sinx + \frac{1}{sin x}
=sin^{2}x +1
=cos^{2} x 
6 0
3 years ago
If Usain Bolt can run a marathon (26.2) in 2 hours and 15 minutes, how fast would he run if he ran at the same constant rate?
inn [45]

Answer:

The speed of Usain Bolt is 0.194 miles per minutes to complete the marathon.

Step-by-step explanation:

Given as :

The Distance of marathon = 26.2 unit

The time taken to complete marathon = 2 hours and 15 minutes

                                                                = 120 + 15 = 135 minutes

Let The constant speed of Usain Bolt = S unit per minutes

So, Speed = \frac{Distance }{Time}

Or, S  = \frac{26.2 }{135}

∴   S = 0.194  unit per minutes

Hence The speed of Usain Bolt is 0.194 miles per minutes to complete the marathon.   Answer

8 0
3 years ago
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