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weqwewe [10]
3 years ago
13

Which of the following are identities? Check all that apply.​

Mathematics
2 answers:
Hatshy [7]3 years ago
5 0

Answer:

b. cos²3x - sin²3x = cos6x

if its wrong sorry

hope this helps you☺️☺️

scoray [572]3 years ago
4 0

Answer:

B and D

Step-by-step explanation:

B.cos²3x-sin²3x=cos6x   ( as cos²a -sin² a = cos 2a)

D.(sinx+cosx)²=sin²x+cos²x+2sinxcosx=1+sin2x

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I’ll give brainliest! Please it’s already missing
Lyrx [107]
<h2><u>Answer:-</u></h2>

\pink{\bigstar} Amount of apple juice Will added \large\leadsto\boxed{\tt\purple{1 \frac{5}{12}}}

<h3>• <u>Given</u><u>:</u><u>-</u></h3>

  • Will puts 1/4 cup of grape juice in a cup.
  • He added apple juice and then he had 1⅔ cup of juice in the cup.

<h3>• <u>T</u><u>o</u><u> </u><u>Find</u><u>:</u><u>-</u></h3>

  • How much apple juice Will added to the cup?

<h3>• <u>S</u><u>o</u><u>l</u><u>u</u><u>t</u><u>i</u><u>o</u><u>n</u><u>:</u><u>-</u></h3>

➪ Amount of grape juice Will added = 1/4

➪ Amount of juice in total after adding the apple juice = 1⅔

Therefore, it is clear that the amount of apple juice Will added to the cup will be the difference in total amount of juice and amount of grape juice.

Hence,

➪ \sf 1 \frac{2}{3} - \dfrac{1}{4}

➪ \sf \dfrac{5}{3} - \dfrac{1}{4}

• <u>Takin</u><u>g</u><u> </u><u>an</u><u> </u><u>L.CM</u><u>:</u><u>-</u>

➪ \sf \dfrac{20 - 3}{12}

➪ \sf \dfrac{17}{12}

➪ \large{\bold\red{1 \frac{5}{12}}}

Therefore, the amount of apple juice added is \large{\bold 1 \frac{5}{12}}

4 0
3 years ago
HELP ASAP PLEASE thanks youu
BlackZzzverrR [31]

Answer: Probably A

Step-by-step explanation: You need to use a ruler for this, because without one its impossible to get it exact

Using the ruler though, you'd measure each side of the wall and either use a ratio of 0.5in:4ft or multiply every 0.5in by 4ft.

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3 years ago
Please help UwU<br><br>also hope your day is going GREAT <br>if correct i will give BRAINIEST
Grace [21]
90 is the answer to your question!
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3 years ago
Please help me!!!!!!!!!
kiruha [24]

Answer:

Step-by-step explanation:

Using the equation of line

y - y_1 = m(x - x_1)

y = mx + C

First first the slope of the equation

y = 9x - 4

Note: if two lines are perpendicular, their slope will be negative reciprocal

Slope = 9, but because it is perpendicular

m = -1/9

Using the equation

y - y_1 = m(x - x_1)

With the point (-9,-17)

x_1 = -9

y_1 = -17

y - (-17) = -1/9(x - (-9)

y + 17 = -1/9(x + 9)

y = -1/9(x + 9) - 17

Open the bracket.

y = (-x -9)/9 - 17

Lcm is 9

y = -x -9 - 153 / 9

y = -x - 162 / 9

Let's separate

y = -x/9 - 162/9

y = -x/9 - 18

y = -1/9x - 18

Therefore, the equation of the line is y = -1/9x - 18

5 0
3 years ago
Ben can type 153 words in 3 minutes. at this rate, how many words can he type in 10 minutes
Anna71 [15]
First you would find out how many words he types in 1 minute. Your answer for that is 51 words per minute. Now multiply that by 10 and that your answer. Your answer is 510 words in 10 minutes. 
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4 years ago
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