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Shtirlitz [24]
4 years ago
7

The auditorium has five doors. Three doors are only entrances; one door is only an exit; and the fifth door can be used to eithe

r enter or exit. In how many different ways can someone enter then leave the auditorium
Mathematics
1 answer:
Neko [114]4 years ago
4 0

Answer:

8 different ways

Step-by-step explanation:

To find how many different ways can someone enter then leave the auditorium, we need to find how many ways can someone enter, how many ways can someone leave, and then multiply these possibilities:

Number of ways that someone can enter: 4 (3 doors are only entrance and 1 door is entrance and exit)

Number of ways that someone can leave: 2 (1 door is only exit and 1 door is entrance and exit)

So the number of different ways that someone can enter and leave the auditorium is 4*2 = 8

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Naily [24]
Y=-5x -2 should be the equation I’ll go check tho
5 0
3 years ago
2. Find the measure of angle A to the nearest degree.
pav-90 [236]

Answer:

37°

Step-by-step explanation:

we're going to use cosine rule In calculating for the value of angle A

note that cosine rule can be used when two sides are given with an included angle . from the diagram above, the two sides given are side AB and side AC and the included angle is A

Hence cosine rule

a^2 = AB^2+AC^2 - 2AB×AC Cos A

3.2^2= 2.1^2+4.6^2-2×2.1×4.6COSA

10.24 =4.41+21.16- 19.32 COSA

10.24 = 25.57-19.32COSA

10.24-25.57= -19.32COSA

-15.33= -19.32COSA

dividing bothsides by - 19.32

COSA= -15.33/19.32

COA= 0.79347826

A = COS^-1 (0.79347826)

A= 37.488

A= 37°

<h2>hope this helps!!</h2>
7 0
2 years ago
what is the total weight of the italian Sandwhich?write the amount as a fraction in simplest form,meat:0.35,vegie:0.15,sauce:0.0
Olegator [25]
The total weight of the Italian sandwich in its simplest fraction is 3/5.

meat      : 0.35  in fraction 35/100
veggies : 0.15 in fraction 15/100
sauce    : 0.05 in fraction 5/100
bread     : 0.05 in fraction 5/100

Total weight = 35/100 + 15/100 + 5/100 + 5/100
                    = (35 + 15 + 5 + 5) / 100
                    = 60/100

To simplify the fraction:

60/100 ⇒ 60 ÷ 10 = 6 ; 100 ÷ 10 = 10 ⇒ 6/10
6/10 ⇒ 6 ÷ 2 = 3 ; 10 ÷ 2 = 5 ⇒ 3/5

7 0
3 years ago
Read 2 more answers
The volume of a metal cylindrical rod is 126 cubic meters. ​The radius is 6 m. ​ ​What is the height of the rod in millimeters?
Dahasolnce [82]

Answer:

1.11 mm

Step-by-step explanation:

The height of a cylinder can be found using the formula: h=V/(πr^2)

This formula was found by taking the formula for the volume of a cylinder and solving for h, or height. Knowing that V is 126 and the radius is 6, we can plug in our known variables in order to solve for h.

8 0
3 years ago
Read 2 more answers
An isosceles triangle has (5 points) A, at least two congruent sides B. two sides that are perpendicular C. three sides with the
aev [14]

Answer:

A. at least two congruent sides

Step-by-step explanation:

Since, we know that,

'An isosceles triangle is a triangle having two sides of equal length or at least two sides of equal length (special case is equilateral triangle)'.

Thus, from the options, we see that,

Options B, C and D are not correct.

<em>Since, congruent sides means that the lengths of the sides are equal.</em>

Thus, we get that,

'An isosceles triangle has at least two congruent sides'.

Hence, option A is correct.

4 0
3 years ago
Read 2 more answers
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