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Eduardwww [97]
3 years ago
15

Two urns contain white balls and yellow balls. The first urn contains 5 white balls and 8 yellow balls and the second urn contai

ns 9 white balls and 2 yellow balls. A ball is drawn at random from each urn. What is the probability that both balls are white?
Mathematics
1 answer:
vovangra [49]3 years ago
7 0
1st urn : 5 white, 8 yellow....total of 13 balls
P(white) = 5/13

2nd urn : 9 white, 2 yellow...total of 11 balls
P(white) = 9/11

P(both events happening) = 5/13 * 9/11 = 45/143 <=
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How do you get x trigonometry
Svetlanka [38]
Quick vocab:
sin=sine
cos=cosine
tan=tangent
theta=the angle
o=opposite side from angle
h=hypotenuse of triangle
a=adjacent side to angle

Three equations:
sin(theta)= o / h
cos(theta)= a / h
tan(theta)= o / a

Explanation of problem:

sin(x)= o / h
sin(x)= 16cm / 28cm
You'll substitute the 16cm in for o and 28cm for h
This is because 16cm is on the side that's opposite from the angle
28cm is on the hypotenuse of the triangle
One way to find the hypotenuse is look where the 90° is at and it's opposite from that

since you're trying to find the angle you'll have to inverse the sin to get it on the other side of the equal sign
Inverse is doing the opposite of so the inverse of sin is sin^-1

{ \sin}^{ - 1} (\frac{16cm}{28cm})
x = sin^-1 (16cm/28cm)

Answer:

x = 34.84990458°

I don't know how far rounded you'll need it
I hope this helped!
7 0
3 years ago
The length of a rectangular window is 5 feet more than its width, w. The area of the
Ilya [14]

Answer:

The equation could be used to find the dimensions of the  window would be:  w^{2}  + 5w = 36

Step-by-step explanation:

as

  • The length of a rectangular window is 5 feet more than its width, w.

and

  • The area of the  window is 36 square feet.

So it means

l = w + 5

A = lw

36 = (w + 5)w

w^{2}  + 5w = 36

Therefore, the equation could be used to find the dimensions of the  window would be:  w^{2}  + 5w = 36

8 0
3 years ago
Consecutive angles in a parallelogram are supplementary. What is the value of x?
Naddika [18.5K]

Step-by-step explanation:

HERE,

\angle{PQR=20+2x  } ⠀

\angle{ QRS=6x } ⠀

we know that,

sum of consecutive angle of a parallelogram =180

so,

According to the question,

\angle{PQR}+\angle{QRS}=180 ⠀

\tt{20+2x+6x=180  } ⠀

\tt{8x+20=180  } ⠀

\tt{8x=180-20  } ⠀

\tt{8x=160  } ⠀

\tt{x=\dfrac{160}{20}  } ⠀

\tt{ x=20 } ⠀

8 0
3 years ago
A lift driver charges $5.25 for the first mile of the trip and$1.25 each mile after that. He charges the customer $24 for the ri
WARRIOR [948]

Answer: 15 miles

Step-by-step explanation:

The equation is 5.25+1.25x=24 where x is each additional mile so to solve for x it would be  1.25x=18.75 and divide both sides to solve for x

3 0
3 years ago
Read 2 more answers
What is the value of x + y(3 - x) when x = -5 and y = 3?
cestrela7 [59]

Answer:

E. 19

Step-by-step explanation:

Step 1: Plug in the x and y values mentioned:

-5 + 3(3 - (-5))=

Step 2: Distribute the three:

-5 + 9+15=

Simplify:

19

<em>Hope this helped and plz mark as brainliest!</em>

<em></em>

<em>Luna G.</em>

4 0
3 years ago
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