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3 years ago

I tried to work this out, help

Mathematics

2 answers:

PilotLPTM [1.2K]3 years ago

5 0

Two angles are complementary if the give 90° when summed.

Since angle 1 is right, angles 2 and 3 form a right angle as well, and thus they are complementary.

Oksanka [162]3 years ago

4 0

Answer:

∠2

Step-by-step explanation:

Complementary angles are angles that add up to 90°

So ∠3 + ∠2 = 90°

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2 years ago

Q7Which statement is incorrect for the graph of thefunction y = -5 cosGcos( 3 (x – 3)) +62The period is 4.The amplitude is 3.The

guajiro [1.7K]

The given function is,

$y=-5\cos (\frac{\pi}{2}(x-3))+6$

The graph can be drawn as,

The period will be distance between two consequetive maximas,

$\text{Period}=1-(-3)=4$

Thus, period is correct.

The amplitude can be determined as,

$\begin{gathered} Amplitude=\frac{\max -\min }{2} \\ =\frac{11-1}{2} \\ =5 \end{gathered}$

Thus, amplitue is incorrect.

The range is,

$y\in\lbrack1,11\rbrack$

Thus, the range is correct.

The midline is,

$\begin{gathered} \text{midline}=\frac{\max +\min }{2} \\ =\frac{1+11}{2} \\ =6 \end{gathered}$

Thus, the midline is correct.

Thus, option (b) is the solution.

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1 year ago

Help me solve these 4 plssss ASAP

Arisa [49]

Step-by-step explanation:

$1) \\ - 2 \leqslant x \leqslant 1 \\ 2) \\ - 3 > x \geqslant 2 \\ 3) \\ x> 0$

$4) \\ x \leqslant - 3 \\ 5) \\ - 4 \leqslant x \geqslant 1$

$6) \\ - 2< x \leqslant 0$

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2 years ago