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3 years ago

50 + 50 = 100 right sure

Mathematics

2 answers:

Lerok [7]3 years ago

7 0

Answer:

yes

Step-by-step explanation:

good job

Harrizon [31]3 years ago

3 0

Yes that is correct

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6. Let E, F, G be three events. Find expressions for the events that of E, F, G a. only E occurs; b. both E and G but not F occu

marta [7]

Answer:

a.) only E occurs :

E((FUG)')

b.) both E and G but not F

EG(F')

C.) Atleast one of the events :

(E U G U F)

d.) Atleast two of the events

(EG U EF U GF)

E.) all three occurs

(EGF)

F.) none of the events occur :

(E U G U F)'

G.) At most one of the events occur

(EG U EF U GF)'

H.) at most two of them occur

(E' U G' U F')

I.) exactly two of them occur;

(EG U EF U GF) * (EGF)'

j. at most three of them occur.

EFG U (EFG)'

Step-by-step explanation:

Events = {E, F, G}

a.) only E occurs :

E((FUG)') ; E and not F or G

b.) both E and G but not F

EG(F') ; both E and G and not F

C.) Atleast one of the events :

(E U G U F) ; Either E or F or G

d.) Atleast two of the events

(EG U EF U GF) ; Either EG or EF or GF occurs

E.) all three occurs

(EGF) ; All three events, E, G and F occurs

F.) none of the events occur :

(E U G U F)' ; Neither E, G nor F occurs

G.) At most one of the events occur

(EG U EF U GF)' ; complement of atleast two) at most one

H.) at most two of them occur

(E' U G' U F') ; Either E , F or G does not occur

I.) exactly two of them occur;

(EG U EF U GF) * (EGF)' ; Exactly two events occurs and all three events Do not occur

j. at most three of them occur.

EFG U (EFG)' ; All three events occur union all three events do not occur

6 0

3 years ago

The sum of 5 consecutive integers is 120. What is the third number in the sequence?

Katena32 [7]

5 consecutive integers can be written like
1. x
2. x+1
3. x+2
4. x+3
5. x+4

sum means add them all up.

$x + x + 1 + x + 2 + x + 3 + x + 4 = 120$
combine like terms and solve for x.

remember it is looking for third in the sequence, so add 2 to your answer.

good luck!

6 0

3 years ago

Sin =9/15 . Find tan 0

ELEN [110]

Answer:

c. 9/12

Step by step explanation.

Given: sin = 9/15

and,

$sin = \frac{opp.}{hyp.}$

$tan = \frac{opp.}{adj.}$

thus, find adj. side

by using Pythagoras theorem

${c }^{2} = {a}^{2} + {b}^{2}$

then,

let adj. side be a^

${a}^{2} = {c}^{2} - {b }^{2} \\ {a}^{2} = {15 }^{2} - {9}^{2} \\ {a}^{2} = 144 \\ a = 12$

thus,

adj. side is 12

then,

tan of the angle = 9/12

3 0

3 years ago

The theorical probability of spinning a 1 is

ddd [48]

Answer:

1/6

Step-by-step explanation:

Intuitively, since the sizes of 1,2,3,4,5,6 are all the same, we can deduce that landing any of these numbers have the same probability. Thus, since there are 6 numbers the answer is 1/6

4 0

3 years ago

Help please: pre- calc

ivanzaharov [21]

Subtract g(x) from f(x): (x²+3x-1)-(x³+4x²+1)=-x³-3x²+3x-2
C is the correct answer.

4 0

3 years ago