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IceJOKER [234]
3 years ago
14

If ΔABC ∠ΔDEC, what is m∠D? A) 40° B) 150° C) 60° D) 80°

Mathematics
1 answer:
Varvara68 [4.7K]3 years ago
6 0
Angle D is 40 because Angle A and D are the corresponding angles since the triangles are congruent.

Hope this helps :)
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Angle x measures 42°. Find the measure of angle y.<br><br> 42°<br> 48° <br> 138°<br> 148°
chubhunter [2.5K]
138 Degrees because it’s supplementary so 180 - 42 = 138
8 0
3 years ago
Linear or nonlinear tables?
Oxana [17]

Table 1 and Table 2 are linear tables while table 3 is a non-linear table.

Step-by-step explanation:

Step 1; If y's value is dependent on the value of x, it is a linear relationship i.e. as the value of x varies, y also varies correspondingly. So x is independent while y is dependent on x i.e. the value of y depends on the value of x. We need to determine if there is a linear relationship between the values of x and y in the given tables.

Step 2; In table 1, the values of y are squares of the values of x i.e. 1² = 1, 2² = 4, 3² = 9, 4² = 16, 5² = 25. So the relationship is y = x². So table 1 is a linear table i.e. values which exist in a linear relationship.

Step 3; In table 2, the values of y are obtained by summing two times the value of x and 4.

when x = 1, y = 2(1) + 4 = 6,

when x = 2, y = 2(2) + 4 = 8,

when x = 3, y = 2(3) + 4 = 10,

when x = 4, y = 2(4) + 4 = 12,

when x = 5, y = 2(5) + 4 = 14.

So y = 2x + 4, so table 2 is also a linear table.

Step 4; There is no relationship between the values of y and x. For the negative values of x, y = -x while for positive values of x, y = x, there is no constant relationship between the values of y and x. So table 3 is a non-linear table.

4 0
3 years ago
Help pls helpppp me plssssssssssss
AleksAgata [21]
5.C
6.D
I hope you get it correct
6 0
3 years ago
Last year, the average math SAT score for students at one school was 475. The headmaster introduced new teaching methods hoping
Debora [2.8K]
I would argue that it does due to that if it increased, it's either from a 30% chance that nothing changed or that the teachers did it. Since 100-30=70, there's a 70 percent chance that the teaching effect did work!
4 0
3 years ago
Read 2 more answers
HELP PLEASE ASAP???!!!!!! !!!!
storchak [24]

Answer:

your answer is C

Step-by-step explanation:


7 0
3 years ago
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