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3 years ago

What is 2 3/4 + -2 1/2

Mathematics

1 answer:

zimovet [89]3 years ago

3 0

Answer:

1/4 or 0.25

Step-by-step explanation:

I did this on a graphic calculator so i can't really explain, but I hope this helps! :)

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Q5: The probability that event A occurs is 5/7 and the probability that event B occurs is 2/3 . If A and B are independent event

bekas [8.4K]

Answer:

$P(A \cap B)$

And we can use the following formula:

$P(A \cap B)= P(A)* P(B)$

And replacing the info we got:

$P(A \cap B) = \frac{5}{7} \frac{2}{3}= \frac{10}{21}=0.476$

Step-by-step explanation:

We define two events for this case A and B. And we know the probability for each individual event given by the problem:

$p(A) = \frac{5}{7}$

$p(B) = \frac{2}{3}$

And we want to find the probability that A and B both occurs if A and B are independent events, who menas the following conditions:

$P(A|B) = P(A)$

$P(B|A) = P(B)$

And for this special case we want to find this probability:

$P(A \cap B)$

And we can use the following formula:

$P(A \cap B)= P(A)* P(B)$

And replacing the info we got:

$P(A \cap B) = \frac{5}{7} \frac{2}{3}= \frac{10}{21}=0.476$

7 0

3 years ago

EXPERT HELP I'LL GIVE BRAINLIEST: C or D

denis23 [38]

Answer:

Step-by-step explanation:

A=(3.14d^2)/4

A=0.785d^2

A=0.785(10^2)

A=78.5 yd^2

6 0

3 years ago

Solve the inequality 8x > 48

Yakvenalex [24]

Step-by-step explanation:

$= 8x > 48$

Now , divide both side by the same number...

$= 8x \div 8 > 48 \div 8$

$= x > 6$

5 0

2 years ago

36% of 112= what because I’m so confused

Gennadij [26K]

Answer:

40.32

Step-by-step explanation:

112 ÷ 100 = 1.12

1.12 × 36 = 4.032

6 0

3 years ago

one third of the bagels ina bakery are sesame bagels. there are 72 sesame bagels. define a variable. then write and solve an equ

Sholpan [36]

Bagels = x
sesame bagels = x/3 = 72

x/3=72
x=72x3
x=216

7 0

3 years ago