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3 years ago

Two customers went to a post office to buy posicaids and large enkelapes Fast posrcard

Mathematics

1 answer:

Setler [38]3 years ago

3 0

The answer to this question is A $1.42 because the first customer paid $12 for 14 postcards

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Which statements describe a parallelogram that must be a rectangle? Select each correct answer. parallelogram with opposite side

Delicious77 [7]

The following statements are true for a parallelogram that must be a rectangle.

parallelogram with a right angle

parallelogram with congruent diagonals

A Parallelogram is a flat shape with opposite sides parallel and equal in length. Squares, rectangles and rhombuses are all parallelograms but with slight differences.

5 0

3 years ago

The mathematics department of a college has 15 male professors, 9 female professors, 6 male teaching assistants, and 12 female t

Vesnalui [34]

Given:

The number of male professors = 15.

The number of female professors = 9.

The number of male teaching assistants = 6.

The number of female teaching assistants = 12.

A person is selected randomly from the group.

Required:

We need to find the probability that the selected person is a professor or a male.

Explanation:

The total number of people in the group = 15+9+6+12 = 42

n(S) =The total number of people in the group

$n(S)=42$

Let A be the event that the selected person is a professor or a male.

The number of people who are professors or male = 15+9+6 = 30

n(A)= The number of people who are professors or male.

$n(A)=30$

Let P(A) be the probability that the selected person is a professor or a male.

$P(A)=\frac{n(A)}{n(S)}$ $P(A)=\frac{30}{42}$ $P(A)=\frac{15}{21}=\frac{5}{7}$

Final answer:

The probability that the selected person is a professor or a male is 5/7.

7 0

1 year ago

Please help! 11 pts.

Veronika [31]

The Pythagorean theorem formula for a triangle is A^2 + B^2 = C^2 where A and B are the sides and C is the hypotenuse.

The sides of the triangle shown are AB and BC and the hypotenuse is AC,

so the correct answer would be:

(AB)2 + (BC)2 = (AC)2, because 25 + 144 = 169

3 0

3 years ago

Read 2 more answers

What is the solution to the equation 2n - 3 = 7

Svetlanka [38]

Answer:

Step-by-step explanation:

2n-3=7

2n=4

n=4/2

4/2=2

N=2

Hope this helps!

4 0

3 years ago

HELPPP LAST ATTEMPT!!

likoan [24]

(6,2) reflections change y axis

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2 years ago