What are the 2 factors that multiply 15000 and adds up to 5

Answers

Answer 1

Answer: ok so there are no real solutions for xy=15000 and x+y=5
there are immaginary solutions though so

xy=15000
x+y=5

x+y=5
y=5-x

x(5-x)=15000
-x^2+5x=15000
0=x^2-5x+15000
quadriacic formula
if ax^2+bx+c=0, then
x= $\frac{-b+/- \sqrt{b^(2)-4ac} }{2a}$

x^2-5x+15000
a=1
b=-5
c=15000
x= $\frac{-(-5)+/- \sqrt{(5)^(2)-4(1)(15000)} }{2(1)}$
x= $(5+/- √(25-60000) )/(2)$
x= $(5+/- √(-59975) )/(2)$
x= $(5+/- 5i√(2399) )/(2)$
so the numbers are
$(5+ 5i√(2399) )/(2)$ and $(5- 5i√(2399) )/(2)$

Answer 2

Answer: the answer is 125 and -120 gthe thing is 15000 is positive

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Alex is feeling stressed this morning. He did not get enough sleep because a dog barked most of the night. The dog barked from 11;41p.m. until 12:09 a.m.Then it started barking again at 3:35 a.m. and didn’t stop until 4:10 a.m.How long did the dog bark in all?

Answers

Answer:

Poor Alex, I know how they feel, I got a dog myself.

The amount of time between

11:41 pm to 12:09 am is

19 minutes (to 12 am, 60 minutes to next hour) + 9

which is 28 minutes for the first dog barking session

the second time is 35 minutes,

using same method as before.

adding the two separte barking sessions we get

35+28= 63 minutes

which is equivelant to 1 hour and 3 minutes.

In conclusion the dog barks for 1 hour and 3 minutes in total.

the length of a rectangle is 3 meters less than twice the width if the area is 104 square meters find the length

Answers

x-width
2x-3-length

A=lxw
104=(2x-3)(x)
104=2x^2-3x
52=x^2-3/2(x)
52+9/16=x^2-3/2(x)+9/16
841/16=(x-3/4)^2
29/4=x-3/4
x=32/4 or 8

length is 2(8)-3 which is 13 and width is 8

Answer:

l = 13 m

Step-by-step explanation:

Let's call the width of the rectangle x. Then we can form an expression for the length of the rectangle: 2x - 3

Now we need to form an equation for the area of the rectangle and solve it:

x(2x - 3) = 104

2x² - 3x = 104

2x² - 3x - 104 = 0 - now we need to factorize the equation

(2x + 13)(x - 8) = 0

Now we can say that x = 8 or x = -6.

Because we cannot have a negative length, x = 8 m.

Now we can workout the length using the expression that we formed at the beginning:

2x - 3 = l

2(8) - 3 = l

l = 16 - 3

l = 13 m

What number is 22% of 320?

A. 7040 B. 70.4 C. 704 D. 7.04

Answers

70.4 is 22% of number 320, Option B is correct.

What is Percentage?

percentage, a relative value indicating hundredth parts of any quantity.

We have to find the 22% of 320

Let us convert 22% to decimalvalue by dividing with 100

22/100=0.22

Now multiply 0.22 with 320

0.22×320

we get 70.4

Hence, 70.4 is 22% of number 320.

To learn more on Percentage click:

brainly.com/question/28269290

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22% of 320 = n
22% × 320 = n
0.22 × 320 = n
(22% = $(22)/(100)$ = 0.22)
70.4 = n

22% of 320 = 70.5

Answer is B. 70.4

In 1985, Rick Hansen, the Man in Motion, wheeledaround the world in his wheelchair in
order to help people understand the importance of a
world without barriers for people with
disabilities. Starting on March 21, 1985, and
finishing on May 22, 1987, he went through
34 countries and travelled a total of 40 075 km. On
average, how many kilometres did he
travel on each day of his world tour? (Neither 1986
or 1987 was a leap year).