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levacccp [35]
2 years ago
12

What is 3 minutes 56 seconds +42 minutes 28 seconds+34 minutes 34 seconds +39 minutes 9 seconds =

Mathematics
1 answer:
Anna35 [415]2 years ago
4 0

Answer:

2 hours and 7 minutes

Step-by-step explanation:

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Plz put the work clearly plzz I really need these
Dmitrij [34]

Answer:

m∠C = 26°

m∠D = 108°

m∠E = 46°

Step-by-step explanation:

Set up the equation adding the expressions together to equal 180 (sum of all angles in a triangle)

(2x) + (x+3) + (5x-7) = 180

Remove the parentheses

2x + x+ 3 + 5x - 7 = 180

Add like terms

8x - 3 -7 = 8x -4 = 180

8x - 4 = 180

Add 4 on each side to cancel it out on the right

8x - 4 = 180

     +4   = +4

8x = 184

Divide each side by 8 to get the variable by itself

8/8 =1    184/8 = 23

x = 23

Substitute x in eac expression

2x = 2(23) = 46°

x + 3 = 23 + 3 = 26°

5x - 7 = 5(23) - 7 = 115 -7 = 108

Chek it by adding all the degrees to make sure it equals 180

46 + 26 + 108 = 72 + 108 = 180

8 0
2 years ago
What is the relation of 2 parallel lines in terms of their slope?
mixas84 [53]
The slopes of two parallel lines are equal! They are identical to one another
4 0
2 years ago
Read 2 more answers
HELP ASAP PLSS BUT only answer if you know it's correct
kvasek [131]
= it is equal to because the absolute value of |-5| is 5
6 0
2 years ago
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1. What is x squared over 6=w-y if the subject of the formula is x??? Help please
Kay [80]
\frac{x^2}{6}=w-y\\
x^2=6(w-y)\\
x=\sqrt{6(w-y)} \vee x=-\sqrt{6(w-y)}
8 0
2 years ago
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The values in the table represent a linear function. What is the common difference of the associated arithmetic sequence
Helga [31]
Answer: 17

21-4=17


4+17=21
21+17=38 and so on..
7 0
3 years ago
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