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Leviafan [203]
3 years ago
7

Please help asap! i need help :(

Mathematics
1 answer:
victus00 [196]3 years ago
4 0
C i just took the test hope this helps:-)
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1. m∠ABD=50°, m∠DBC=40° Given 2. m∠ABD+m∠DBC=m∠ABC Response area 3. Response area Substitution Property of Equality 4. Response
galina1969 [7]

Answer:

<abd+<dbc=<Abc

50+40=90

triangle abc is a right angled triangle being one angle 90 degree

6 0
3 years ago
In a popular tale of wizards and witches, a group of them finds themselves in a room with unmarked doors which change position,
SSSSS [86.1K]

Answer:

Expected number of hours before the the group exits the building = E[Number of hours] = 3.2 hours

Step-by-step explanation:

Expected value, E(X) is given as

E(X) = Σ xᵢpᵢ

xᵢ = each variable

pᵢ = probability of each variable

Let X represent the number of hours before exiting the building taking each door. Note that D = Door

D | X | P(X)

1 | 3.0 | 0.2

2 | 3.5 | 0.1

3 | 5.0 | 0.2

4 | 2.5 | 0.5

E(X) = (3×0.2) + (3.5×0.1) + (5×0.2) + (2.5×0.5) = 3.2 hours

Hope this Helps!!!

7 0
3 years ago
Werner's Deli can make 2.2 sandwiches
netineya [11]

Answer:

Hi there!

Your answer is:

66 sandwiches

Step-by-step explanation:

2.2sandwhiches per 1 min

× 30

66 sandwiches per 30 minutes!

Hopefully this helps

7 0
3 years ago
50 is 40% of what number
DENIUS [597]
50 / 0.40 = 125

To check your answer, 125 * 0.4 = 50
7 0
3 years ago
Read 2 more answers
The ordered pair R(-2,7) is translated 5 units to the right and down 2 units. which of the following descirbes the translation u
grigory [225]
Choice D is the correct answer.
For translations, moving to the right 5 units means you add 5 to x, and moving down 2 units means you subtract 2 from y. D is the only choice that accurately represents this.

Hope this helps
3 0
2 years ago
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