Mathematics, 09.11.2020 14:00 nicole667
Triangle X Y Z is shown. The length of X Y is 9, the length of Y Z is 19, and the length of X Z is y. Angle X Y Z is 41 degrees.
Law of cosines: a2 = b2 + c2 – 2bccos(A)
Which equation correctly uses the law of cosines to solve for y?
92 = y2 + 192 – 2(y)(19)cos(41°)
y2 = 92 + 192 – 2(y)(19)cos(41°)
92 = y2 + 192 – 2(9)(19)cos(41°)
y2 = 92 + 192 – 2(9)(19)cos(41°)
Answers: 2
Another question on Mathematics
Mathematics, 21.06.2019 20:30
Clarence wants to buy a new car. he finds an ad for a car that costs 27,200 dollars. suppose his local sales tax is 7%. -how much would he have to pay? -what is the cost of the car including tax? -if clarence has 29,864 saved, can he pay cash to buy the car?
Answers: 1
Mathematics, 21.06.2019 23:00
Someone answer this asap for the length, in feet, of a rectangular rug is represented by the expression 5x² + 2x. the width, in feet, is represented by the expression 3x². which expression represents the perimeter, in feet, of the rug? a. 8x² + 2x b. 8x² + 4x c. 16x² + 2x d. 16x² + 4x
Answers: 2
Mathematics, 21.06.2019 23:40
In the diagram, a building cast a 35-ft shadow and a flagpole casts an 8-ft shadow. if the the flagpole is 18 ft tall, how tall is the building? round the the nearest tenth.
Answers: 2
Mathematics, 22.06.2019 00:30
What is the area of the parallelogram? 48 sqrt(3)cm2 48 cm2 24 sqrt (3) cm2 24 cm2
Answers: 2
You know the right answer?
Triangle X Y Z is shown. The length of X Y is 9, the length of Y Z is 19, and the length of X Z is y...
Questions
English, 21.10.2020 02:01
Mathematics, 21.10.2020 02:01
English, 21.10.2020 02:01
Mathematics, 21.10.2020 02:01
Mathematics, 21.10.2020 02:01
Biology, 21.10.2020 02:01
History, 21.10.2020 02:01
English, 21.10.2020 02:01
English, 21.10.2020 02:01
