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Tomtit [17]
3 years ago
15

Two numbers are randomly selected from integers 1 through 9. What is the probability that only one of the integers is odd given

that the sum of the two numbers is odd?
1/4

1

40/81

5/40
Mathematics
1 answer:
Stells [14]3 years ago
4 0

Another one where there's a danger of overthinking it !

The sum of ANY two integers is odd only if one is even and one is odd.

If they're both odd OR both even, then their sum is even.

So if their sum is odd, then one is odd and the other is even.

The probability is ' 1 ' (100%) .

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What is the slope and y-intercept?
miv72 [106K]
Slope=rise/run
yintercept is where the line crosses the y axis
y=mx+B
m=slope
b=yint
intercept at -3
y=mx-3
pick  a point
(5,0)
x=5,y=0
0=m(5)-3
add 3
3=5m
divide 5
3/5=m

slope=3/5
y int=-3
4 0
2 years ago
Factor x2 − 8x + 9.
kolezko [41]

x^2 − 8x + 9

What two numbers when multiplied yield 9 but when added yield -8?

There are no such numbers.

Use the quadratic formula.

7 0
3 years ago
Una recta atraviesa el punto (4,-6) Y tiene una pendiente igual a 5/4
yulyashka [42]

Answer:

y=5/4x-11

Step-by-step explanation:

tenemos un punto (4,-6) y una pendiente equal a 5/4.

usa la ecuación y=mx+b (m es la pendiente, b es el y interceptar)

porque sabemos la pendiente es 5/4, ahora mismo la ecuación es:

y=5/4x+b

en el punto, x=4, y=-6

podemos sustituir los números en la fómula para resolver b

-6=4(5/4)+b

-6=5+b

-11=b

entonces,

la ecuación de la recta es y=5/4x-11

(¡lo siento mi español no es perfecto!)

8 0
3 years ago
George places $5,000 into an account that earns a simple interest of 4.3%. John places $5,500 into an account that earns 4%. Who
olchik [2.2K]

Answer/Step-by-step explanation:

<u><em>George: </em></u>

4.3% ÷ 100 = 0.043

0.043 × 5000 = 215

<em><u>John:</u></em>

4% ÷ 100 = 0.04

0.04 × 5500 = 220

<u><em>End of 6 years:</em></u>

George: 215 × 6 = 1290

John: 220 × 6 = 1320

<u><em>John has earned the most interest at the end of 6yrs.</em></u><u><em> $1320</em></u>

3 0
3 years ago
How do u find the slope between the points (-5,2) and (3,9)
Whitepunk [10]
You need to rise divided by the run. Another way to put it is
m = (y2 - y1)/(x2 - x1)
Take your points and plug them in
m = (2 - 9)/(-5 - 3) = (-7)/(-8) = 7/8 is the slope
7 0
3 years ago
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