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2 years ago

Which answer choice is right

Mathematics

2 answers:

scoray [572]2 years ago

6 0

Answer:

Step-by-step explanation:

When solved for x= -1<x<1

valina [46]2 years ago

4 0

Answer:

Step-by-step explanation:

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Does anyone know the answer to this?!

AURORKA [14]

Answer:

65 degrees

Step-by-step explanation:

85 + 30 = 115

180 - 115 = 65

Verify:

a + b + c = 180

85 + 30 + 65 = 180

180 = 180

4 0

2 years ago

Which quadrant contains -11pi/18 and what is the reference angle?

vekshin1

Answer:

Option 1 is correct.

Step-by-step explanation:

Given angle $\frac{11\pi}{18}$ . we have to find the quadrant and the reference angle.

Angle given is $\frac{11\pi}{18} i.e \frac{11}{18}\times 180^{\circ}=110^{\circ}$

Hence, the angle is 110° lies in second quadrant.

Now reference angle, the smallest angle that you can make from the terminal side of an angle with x-axis.

which is $\pi-\frac{11\pi}{18}=\frac{7\pi}{18}$

Hence, option 1 is correct.

6 0

2 years ago

Help because this is dificulty to me

scoray [572]

Answer:

false false true false ez

6 0

3 years ago

PLEASE HELP ASAP! 50 POINTS!! HELP HELP HELP!!

marin [14]

$\frac{ \frac{8}{5} + ( - \frac{5}{6}) }{ \frac{1}{6} } \\ = \frac{ \frac{8}{5} - \frac{5}{6} }{ \frac{1}{6} } \\ = \frac{ \frac{48- 25}{30} }{ \frac{1}{6} } \\ = \frac{ \frac{23}{30} }{ \frac{1}{6} } \\ = \frac{23}{30} \times 6 \\ = \frac{23}{5}$

7 0

3 years ago

Given that f(x) = 13x2 + 156, find x. A) x = ±2i 3 B) x = ±2i 6 C) x = ±3i 5 D) x = ±3i 6

mamaluj [8]

Answer:

A) x = ±2i√3

Step-by-step explanation:

We presume you want to find x such that f(x) = 0.

Divide by 13:

x² + 12 = 0

Subtract 12:

x² = -12

Take the square root:

x = ±i√12 = ±2i√3

3 0

2 years ago

Which answer choice is right​

Which answer choice is right