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Reil [10]
3 years ago
7

Determine if the statements below are true or false. Justify your answer. (a) If a fair coin is tossed many times and the last e

ight tosses are all heads, then the chance that the next toss will be heads is somewhat less than 50%. (b) Drawing a face card (jack, queen, or king) and drawing a red card from a full deck of playing cards are mutually exclusive events. (c) Drawing a face card and drawing an ace from a full deck of playing cards are mutually exclusive events.
Mathematics
1 answer:
denis23 [38]3 years ago
4 0

Answer:

(a) is False (b) is true (c) is true

Step-by-step explanation:

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(b) Let X(s) and Y(s) denote the Laplace transforms of x(t) and y(t), respectively. Find H(s) = Y(s)/X(s). Assume zero initial c
Schach [20]

Answer:

H(s)=(∫_(t=o)^∞▒〖x(t)e^(-st) dt〗)/(∫_(t=o)^∞▒〖y(t) e^(-st) dt〗)

Step-by-step explanation:

L{f(t)}=F(s)=∫_(t=0)^∞▒〖f(t)e^(-st) dt〗

8 0
3 years ago
Find the focus for y=x^2+4x-7
padilas [110]

ANSWER

(2,-10.75)

EXPLANATION

The given function is

y =  {x}^{2}  - 4x - 7

We rewrite this function to obtain,

(y + 11) =  {( x- 2)}^{2}

We now compare this function to

(y  -  k) = 4p {( x- h)}^{2}

We have

4p = 1

This implies that,

p =  \frac{1}{4}

The vertex is (2,-11).

The focus is

(2,-11+ \frac{1}{4} )

(2,- \frac{43}{4} )

(2,-10.75)

7 0
3 years ago
Use the data set and line plot below. How many feathers are
Brrunno [24]

Answer:

the correct answer to your question would be option c

4 0
2 years ago
Read 2 more answers
Please help this is for a friend with co vid- 19
postnew [5]

Answer:

am not sure but

Step-by-step explanation:

since they are similar they must have similar ratio

so 12/4 =3/1

so 3:1

4*3=12

for other sides I think

9*3 =27

and

6*3=18

y=27

x=18

5 0
2 years ago
I need the answer for both of them I’ll give your Brainly help
ExtremeBDS [4]

Answer:

11. a)50      12. a)40

Step-by-step explanation:

sum of  all three angles of  trinagle=180

so

111.

80+50+x=180

130+x=180

x=180-130

x=50

12.

60+90+x=180

150+x=180

x=190-150

x=40

4 0
3 years ago
Read 2 more answers
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