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4 years ago

What is math im cant speak

Mathematics

2 answers:

UkoKoshka [18]4 years ago

7 0

Math is a subject which many people find disgusting and horrible but which i favour over others

babunello [35]4 years ago

3 0

Math is like addition, subtraction, multiplication, and division.

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12 yellow balls and 7 red balls are placed in an urn. two balls are then drawn in succession without replacement. what is the pr

xxMikexx [17]

Total number of balls = 12 + 7 = 19

p(first ball is a red) = 7/19

Answer: 7/19

6 0

3 years ago

Use the quadratic formula x^2-5x+3=0

kifflom [539]

Answer:

$x^2 -5x +3 = 0\\\\ x= \frac{-b \pm \sqrt{b^2-4*a*c} }{2a} \\\\b = -5, a = 1 , c = 3\\\\x= \frac{-b + \sqrt{b^2-4*a*c} }{2a} , x= \frac{-b -\sqrt{b^2-4*a*c} }{2a}\\\\x= \frac{5 + \sqrt{25-12} }{2}, x= \frac{5-\sqrt{25-12} }{2}\\\\x= \frac{5+\sqrt{13} }{2}, x= \frac{5- \sqrt{13} }{2}$

5 0

3 years ago

. The fourth grade class is donating 100 clothing items to charity. 63 hundredths of the items are sweaters and 0.20 of the item

inessss [21]

Answer: 17/100

Step-by-step explanation:

63/100 is sweaters and 20/100 is jeans and when you add them together you get 83/100. 100/100-83/100=17/100

6 0

2 years ago

In math class, 4 students complete individual surveys to determine the percentage of high school teachers that have a second job

Fudgin [204]

If your surveys are the following:
A. A survey of 110 teachers showed that 28 of them have a second job.
B. A survey of 90 teachers showed that 27 of them have a second job. 
C. A survey of 70 teachers showed that 21 of them have a second job. 
D. A survey of 80 teachers showed that 32 of them have a second job.

Then the answer is B and C

3 0

3 years ago

Read 2 more answers

According to the general equation for conditional probability, if P(A n B) = 3/10 and P(B)= 2/5 what is p(alb)

Natali5045456 [20]

Answer:

P(A given B) = 3/4

Step-by-step explanation:

As we know that it is conditional probability, where the probability of an event depends on the event that has certain probability of occurrence.

The formula for conditional probability is:

P(A given B) = P(A ∩B) / P(B)

Where a and B are events. The probability of event B is known and we also know probability of A∩B

So, putting the values in the formula:

$P(A\ given\ B) = \frac{P(A and B)}{P(B)}\\= \frac{\frac{3}{10} }{\frac{2}{5} } \\=\frac{3}{10} *\frac{5}{2}\\=\frac{3}{4}$

So, the probability of A given B is 3/4 ..

3 0

3 years ago