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3 years ago

Please help me simplify this! I have no idea how to solve this question! Thank you if you do!

Mathematics

1 answer:

rjkz [21]3 years ago

6 0

You go it right it's the first one

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Choose a justification for each step in the derivation of the sine difference identity.

Natali [406]

Answer:

Step 1:

✔ Cofunction identity

Step 5:

✔ Sine difference identity

Step 6:

✔ Cofunction Identity

Step 7:

✔ Cosine function is even, sine function is odd.

Step-by-step explanation:

8 0

3 years ago

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A. 49<br> B. 7<br> C. 17<br> D. 61

raketka [301]

Answer:

B:17

Step-by-step explanation:

Because it logically is the only answer that makes sense.

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3 years ago

Read 2 more answers

Pleaseee help will give brainliest

IceJOKER [234]

Both of the angles are equal since they’re vertically opposite angles
Hence we need to equate them

3x-3=6(x-10)
3x-3=6x-60
57=3x
x=19

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3 years ago

What is the solution of the system?

Kryger [21]

Greetings!

Solve the System, using Elimination:
$\left \{ {{4x+2y=18} \atop {2x+3y=15}} \right.$

Multiply Equation #2 by 2:
$\left \{ {{4x+2y=18} \atop {2(2x+3y)=2(15)}} \right.$

$\left \{ {{4x+2y=18} \atop {4x+6y=30}} \right.$

Eliminate variable x:
$-\frac{ \left \{ {{4x+2y=18} \atop {4x+6y=30}} \right.}{0x-4y=-12}$

$4y=-12$

Divide both sides by 4:
$\frac{4y}{4}= \frac{12}{4}$

$y=3$

Input this value into one of the Equations:
$4x+2y=18$

$4x+2(3)=18$

Simplify:
$4x+6=18$

$(4x+6)+(-6)=(18)+(-6)$

$4x=12$

Divide both sides by 4.
$\frac{4x}{4}= \frac{12}{4}$

$x=3$

The Solution to this System (The Point of Intersection):
$\boxed{(3,3)}$

I hope this helped!
-Benjamin

7 0

3 years ago

Plz help me well mark brainliest if correct.......?

Dmitrij [34]

Answer:

Step-by-step explanation:

8 0

3 years ago