3 years ago

Which of the sets of ordered pairs represents a function?

Mathematics

1 answer:

JulsSmile [24]3 years ago

5 0

The set of B of ordered pairs represents a function.

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Mr. Adams has 14 boys and 8 girls in his mathematics class. If he chooses two students at random to work on the board, what is t

igomit [66]

Answer:

boys

Step-by-step explanation:

7 0

3 years ago

In a certain college, 33% of the math majors belong to ethnic minorities. If 7 students are selected at random from the math maj

Digiron [165]

Answer: a) 0.996, b) 0.253, c) 0.02.

Step-by-step explanation:

Since we have given that

Probability of success = Probability of the math majors belong to ethnic minorities = 33% = 0.33 =p

Probability of failure = q = 1-0.33 = 0.67

Number of students selected = 7

a) No more than 5 belong to an ethnic minority

So, using "binomial distribution", we get that

$P(X\leq 5)=\sum^5 _{x=0} ^5C_x(0.33)^x(0.67)^{5-x}=0.996$

b. Exactly three of them belong to an ethnic minority

So, it becomes,

$P(X=3)=^7C_3(0.33)^3(0.67)^4=0.253$

c. None of them belong to an ethnic minority

$P(X=0)=^7C_0(0.33)^0(0.67)^7=0.02$

Hence, a) 0.996, b) 0.253, c) 0.02.

8 0

3 years ago

Convert 9/20 to a decimal

topjm [15]

Answer:

0.45

Step-by-step explanation:

8 0

4 years ago

Read 2 more answers

How can I solve this?

Eva8 [605]

Answer:

they are congruent so 47 is also the measurement for its corresponding angle(aka the corner that doesn't have a variable)

and in a triangle, interior angles add to 180 so 47+x+y=180

90 + 43 = 133

+47= 180

so your answer is a

hope this helps!!

8 0

3 years ago

A straight line passes through the points P (1, 2) and Q (5, - 14). What is the gradient of the the line PQ?

ddd [48]

Answer:

Step-by-step explanation:

gradient= change in y

__________

change in x

m= y2_ y1

______

x2- x1

m= -14- 2

_____

5-1

m= -16

___

m= -4

5 0

2 years ago