PLEASE HELP ASAP

Mathematics

2 answers:

ankoles [38]3 years ago

8 0

Correct Answers:

B- using the distributive property, -2 times 5x is -10x, and -2 times -3 is 6. Therefore, an equivalent expression is 8-10+6

E- you can swap 8 to the opposite side of the equation, resulting in -2(5x-3)+8. From here, you distribute and get -10x+6+8. 6+8=14. Therefore, -10x+14 is equivalent.

Vinil7 [7]3 years ago

3 0

A and B
A: 8-2 is 6 and then you can distribute
B: 2 is distributed to 5x and -3

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mylen [45]

Hey there!

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3 years ago

How to construct a triangle with side lengths 10 cm and 14 cm and an angle between them of 60 degrees.

Yuliya22 [10]

Answer:

We draw line AB which is perpendicular to the 14 cm side

Since Angle C is 60 degrees that makes angle CAB = 30 degrees

Triangle CAB is a 30 60 90 triangle so line CB is half the hypotenuse or 5 cm

Line BD equals 9 cm

Line AB^2 = 10^2 - 5^2 = 75

Line AD^2 = AB^2 + BD^2

Line AD^2 = 75 + 81

Line AD^2 = 156

Line AD = 12.4899959968

Line AB = Sqr root (75) = 8.6602540378

Angle D = arc sine (8.6602540378 / 12.4899959968)

Angle D = 43.898 degrees

Angle A = 180 - 60 - 43.898 = 76.102 degrees

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Actually this could have been done a little easier by using the Law of Cosines and then the Law of Sines, but I just thought I'd show another way to solve this.

Step-by-step explanation: