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NARA [144]
3 years ago
11

A bag contains 19 white balls and 6 black balls. the balls are drawn with replacement. what is the expected number of white ball

s drawn before the 13 th black ball is drawn.
Mathematics
1 answer:
MrRissso [65]3 years ago
3 0
For every four white balls taken out one black ball is taken out so it would be the 52 white ball
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PLEASE HELP
Elodia [21]

Answer:

The area of the resulting cross section is 78.5\ m^{2}

Step-by-step explanation:

we know that

The resulting cross section is a circle congruent with the circle of the base of cylinder

therefore

The area is equal to

A=\pi r^{2}

we have

\pi=3.14

r=10/2=5\ m -----> the radius is half the diameter

substitute the values

A=(3.14)(5)^{2}=78.5\ m^{2}

7 0
3 years ago
A sweater was on sale at 40% off the regular price. Ella saved 20$ by buying the sweater on sale. What was the regular price of
barxatty [35]

Answer:

the answer is $50 for the full price of the sweater

Step-by-step explanation:

if you know $20 is 40% what is 20% it is $10 and then multiple it by 5 because  20 times 5 is 100 and you get 50

8 0
3 years ago
I need help please I will mark you brainlists
V125BC [204]

Answer:

2. ΔABC is isosceles

Step-by-step explanation:

Given : m∠A = 50

m∠BCD = 180 - (m∠BDC + m∠DBC)

              = 180 - (100 + 30)

              = 50

then

m∠A = m∠BCD

therefore ΔABC is isosceles

6 0
3 years ago
Ashley is making cookies for
allochka39001 [22]

Answer:

1.6 cups of sugar

Step-by-step explanation:

0.4 cups per batch.

4 batches.

Total sugar required = 0.4 x 4

= 1.6 cups of sugar

8 0
3 years ago
PLEASE HELP URGENT 10 POINTS
snow_tiger [21]
All are correct

Explanation:since in none of the answers share the same the same X value and since the graph passes the vertical line test it is a function
8 0
2 years ago
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