3 years ago

Can someone please help me with these 2 questions? I’m so confused on them

Mathematics

1 answer:

Korvikt [17]3 years ago

5 0

The second one is A, and that is reflection.

The first one is L, and that is rotation.

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Natalija [7]

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3 years ago

Cos xcos y=1/2(sin(x+y)+ sin(x-y))

garri49 [273]

Taking Rhs

1/2 [sin(x+y)+ sin (x-y)]

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4 years ago

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3 years ago

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Ronch [10]

Answer:

$\displaystyle x\in \left(-\frac{40}{13},\frac{48}{13}\right)$

Step-by-step explanation:

<u>Inequalities with Absolute Value</u>

We must recall the following rule:

$\text{If }|M|0$

Then:

$-N$

We have the following inequality:

$|13x-4|+12 < 56$

Subtracting 12:

$|13x-4|< 56-12$

$|13x-4|< 44$

Applying the rule:

$-44$

Adding 4:

$-44+4$

Operating:

$-40$

Dividing by 13:

$\displaystyle -\frac{40}{13}$

The solution expressed in interval form is:

$\boxed{\displaystyle x\in \left(-\frac{40}{13},\frac{48}{13}\right)}$

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3 years ago

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goldfiish [28.3K]

<h3>Answer: 121</h3>

Reason:

The central angle is the same measure as the arc it subtends.

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3 years ago