2 years ago

Can a triangle have sides with the given lengths? Explain. a = 6 yd, b = 9 yd, c = 11 yd

Mathematics

1 answer:

RideAnS [48]2 years ago

3 0

Answer:

Step-by-step explanation:

Use the cosine rule and see if the numbers hold true. a^2 = b^2 + c^2 - (2bc (cos x))

By substituting in our values I get that cos x = 0.838... which is possible. If cos x would equal 1.5, the there is no solution and the triangle would not be possible.

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Find 5x − 3y − z if x = −2, y = 2, and z = −3 −19 19 13 −13

Blababa [14]

5x - 3y - z
By hypothesis, x = -2, y = 2 and z = -3.

So you all need to do is replace each letter by its value and do the calculus:

5x - 3y - z = 5*(-2) - 3(2) - (-3)
= -10 - 6 + 3=
=-16 + 3
= -13

So when x = -2, y = 2 and z = -3
5x - 3y - z = -13 (answer d)

Hope this helps! :)

8 0

3 years ago

PLEASE HELP I WILL GIVE A LOT OF POINTS

FromTheMoon [43]

Answer:

765 ft

Step-by-step explanation:

1/2(30 times 22)=330 times 2= 660+ 1/2(21 times 10)=105

3 0

3 years ago

Read 2 more answers

ADante begins to evaluate the expression 3 1/3 × 51/4 using the steps below. Which could be his next step?