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Veronika [31]
3 years ago
13

Another 2 questions

Mathematics
2 answers:
OverLord2011 [107]3 years ago
6 0

Answer:

3x+2y+ 6x

=(3+6)x + 2y

=9x + 2y

8n + 3y -8n

=(8-8)n + 3y

=0+3y

=3y

Valentin [98]3 years ago
3 0
The first answer is 9x + 2y

the second answer is 3y
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Find all solutions for the following equations. Write your answers in radians using exact values. (Enter your answers as a comma
sasho [114]

Answer:

Step-by-step explanation:

Given that:

sin2xcos x + cos2xsin x = -1

Recall that;

SInAcosB + cosASinB = SIn (A+B)

SIn (2x +x) = -1

Sin (3x) = -1

x = \bigg [\dfrac{Sin ^{-1} (-1)}{3}  \bigg ]

x = \dfrac{\pi}{2} + \dfrac{2 \pi \ k}{3}

x = \dfrac{\pi}{2}, \dfrac{7 \pi}{6}, \dfrac{11 \pi}{6}

5 0
3 years ago
A ball is thrown with an initial velocity of 32 ft/s from a height of 4.5 feet. It’s height as a function of time is given by th
Lana71 [14]

Answer:

the ball will be in the air for possibly 2.5 seconds and it max hieght was 10 ft

Step-by-step explanation:

no clue

6 0
3 years ago
Use the scatter plot to fill in the missing coordinate of the ordered pair?​
Leona [35]

Answer:

Pairs (0, 14) and (10, 0)

5 0
3 years ago
Can someone help me PLS
jolli1 [7]

Answer:

Step-by-step explanation:

2^2=1.75^2+3^2-2*3*1.75cos x

4=3.0625+9-10.5 cosx

10.5cos x=9-4+3.0625

10.5cosx=8.0625

cos x= 8.0625/10.5≈0.77

x≈40 degrees

8 0
3 years ago
Read 2 more answers
Could 13.5 cm, 8.0 cm, and 3.5 cm be the side lengths of a triangle?
Sergio039 [100]
The answer is no, it couldn't be because the side lengths do not adhere to the triangle inequality theorem. which states that the sum of the side lengths of any 2 sides of a triangle must exceed the length of the third side

3.5+8>13.5 Is not correct.

6 0
3 years ago
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