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german
3 years ago
12

Add using a number line. -3/4 + 1 1/4

Mathematics
2 answers:
Andru [333]3 years ago
8 0
Find 1 1/4 on the number line and count back 3/4 (why it is negative) answer is 1/2.
chubhunter [2.5K]3 years ago
7 0

Answer:

7

Step-by-step explanation:

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ss7ja [257]

Answer:

21.5?

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5 0
3 years ago
Two part-time instructors are hired by the Department of Statistics and each is assigned at random to teach a single course in p
scZoUnD [109]

Answer:

The probability that they will teach different courses is \frac{2}{3}.

Step-by-step explanation:

Sample space is a set of all possible outcomes of an experiment.

In this case we will write the sample space in the form (x, y).

Here <em>x</em> represents the course taught by the first part-time instructor and <em>y</em> represents the course taught by the second part-time instructor.

Denote every course by their first letter.

The sample space is as follows:

S = {(P, P), (P, I), (P, S), (I, P), (I, I), (I, S), (S, P), (S, I) and (S, S)}

The outcomes where the the instructors will teach different courses are:

s = {(P, I), (P, S), (I, P),(I, S), (S, P) and (S, I)}

The probability of an events <em>E</em> is the ratio of the number of favorable outcomes to the total number of outcomes.

P(E)=\frac{n(E)}{N}

Compute the probability that they will teach different courses as follows:

P(\text{Different courses})=\frac{n(s)}{n(S)}=\frac{6}{9}=\frac{2}{3}

Thus, the probability that they will teach different courses is \frac{2}{3}.

3 0
2 years ago
Write this number expanded form 325.809
stira [4]
300+20+5+.800+09 I hope that is what your looking for good luck :)
5 0
3 years ago
Is anyone willing to help me solve Absolute Value homework?? It doesn't look awful but I just do not understand.. Help would be
ira [324]
Sure, but I can’t find the problems
6 0
2 years ago
What is the measure of angle b?
Natasha2012 [34]

Answer:

90

Step-by-step explanation:

they are vertical angles

3 0
3 years ago
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