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3 years ago

8

Plz help me!!with this!!

1 answer:

ikadub [295]3 years ago

7 0

the surface area of that rectangular prism is 247.5.

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16. Solve for the angle x.<br> cos(¹/2x) = ¹/2

Basile [38]

Answer:

We know that ,

$\rightarrow \tt \cos( \frac{\pi}{3} ) = \frac{1}{2}$

So ,

$\: \rightarrow \tt \cos( \frac{1}{2}x ) = \cos( \frac{\pi}{3} ) \\ \\ \rightarrow \tt \frac{1}{2}.x = \frac{\pi}{3} \\ \\ \rightarrow \tt x = \frac{2\pi}{3}$

we can add 2 pi to it since there will be no change in the value

Also,

$\: \rightarrow \tt \cos( \frac{14\pi}{6} ) = \frac{1}{2} \\ \\ \\ \rightarrow \tt \frac{1}{2} x = \frac{14\pi}{6} \\ \\ \rightarrow \tt x = \frac{7\pi}{3}$

Answer : Option B

6 0

1 year ago

21x =7?<br> A. x=3<br> B. None of these <br> C. x=147<br> D. x=28

Varvara68 [4.7K]

Answer: B

Step-by-step explanation:

To isolate x, you divide both sides by 21

21x=7

$\frac{21x}{21}=\frac{7}{21}$

x = 7/21

Simplify by dividing both the numerator and denominator by 7

x = 1/3

Since, 1/3 is not an option, B is the correct answer

6 0

1 year ago

Which of the following statements must be true about this diagram?<br> Check all that apply.

Alik [6]

Answer:

i would go for a and c

Step-by-step explanation:

7 0

2 years ago

Is 6y − 3x > 9 shaded

bagirrra123 [75]

6y - 3x > 9
-3x > -6y + 9
x < 2y - 3....yes, it is shaded below the line

7 0

2 years ago

PLEASE I need help I don’t understand this math and I have less then 20 minutes so help is really needed please also if you can

adoni [48]

Answer:

false

Step-by-step explanation:

because 14x7 = 98

4 0

3 years ago

Read 2 more answers