which two numbers multiply to give you 100 and add to give you 10

Answers

Answer 1

Answer: The correct answer is:

There are no real numbers that fit these criteria.

Explanation:

Let x and y represent the two numbers we are looking for.

x*y = 100
x+y = 10

Solving for y,
x+y-x = 10-x
y = 10-x

Substituting this into our first equation, we have:
x(10-x) = 100

Using the distributive property,
x*10 - x*x = 100
10x - x² = 100

Writing this in standard form, we need to subtract 100 from each side:
10x - x² - 100 = 100 - 100
10x - x² - 100 = 0

In standard form, this is
-x²+10x-100 = 0.

This is in the form ax²+bx+c; in our equation, a = -1, b = 10 and c = -100.

We will use the quadratic formula for this:

$x=(-b \pm √(b^2-4ac))/(2a) \n \n=(-10\pm √(10^2-4(-1)(-100)))/(2(-1)) \n \n=(-10\pm √(100-400))/(-2) \n \n=(-10\pm √(-300))/(-2)$

There is no real square root of -300, so there are no real number solutions to this.

Answer 2

Answer: which two numbers multiply to give you 100 and add to give you 10:
x*y = 100
x+y = 10

x = 10 - y
x(10-x) = 100
10x - x^2 = 100

... I don t remember the delta statment :)

Related Questions

Use properties to find the sum or product 8×51
110% of 90 is what number a? 110/100
Jenna jump 156 inches in the long jump competition After High School track meet how many feet did Jenna jump
Due to a membership drive for a public television station, the current membership is 125% of what it was a year ago. The current membership in 1200. How many members did the station have last year?
What is 3 2/5 times 2 1/3

What is the value of the expression? 15 – 10 + (200 ÷ 20)3The 3 is an exponent. Please help ASAP

Answers

First take 200/20 then * that by 3 with is 30 than add 10 then -15 = 25 so you last answer is 25.

Which fraction is greater than - 5/16? A . - 1/4

B. -11/32

C. - 3/8

D. - 1/2

Answers

it' D!

16 is an odd number, so you immediately know whether 5/16 is bigger than half: half would be 8/16 (just divide 16 into two). 6 is smaller than 8, so 5/16 is smaller than half.

so 1/2, which is half, is bigger than this!

Jason has 9 quarters how much money does he have

Answers

thats is exactly 2 dollars and 25 cent

He has $2.25.

Four quarters= $1 Eight= $2.00 + .25 in change

A cone has a base radius of 7 centimeters and a height of 21 centimeters.What is the volume of the cone?

A.
28π cm3

B.
49π cm3

C.
147π cm3

D.
343π cm3
*there is no pic*

Answers

V=(1/3)hpir^2
r=7
h=21
V=(1/3)21pi7^2
V=7pi49
V=343pi cm^3

answer is D

V= π·r²·h/3 is the formula to calculate this.

So, V= 3.14 · 7² · 21/3

Remember to use PEMDAS

Exponents are first so:

V= 3.14 · 49 · 21/3

Now division:

V= 3.14 · 49 · 7

Now multiply from left to right:

V= 153.86 · 7

V= 1077.02

But, in your case, the answer is D) 343π cm³

What is the length of a side of a cube with a volume of 729 m3?

Answers

So, You Need To Find The Length Of One Of The Sides. So, Lets Find It Using The Cubed Method. 10*10*10 = 1000, So It Can't Be 10. 5*5*5 = 125, So It Needs To Be Bigger. 7*7*7 = 343, So Bigger. 8*8*8 = 512, So Bigger. 9*9*9 = 729m^3, So, The Side Length Of The Cube Is 9 Meters. I Hope This Helps!

Which of the following is the product matrix AB