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daser333 [38]
2 years ago
5

Hurry Asap Need Help I Will Give Brainliest!!

Mathematics
2 answers:
Darya [45]2 years ago
8 0
1. cbd
2. 40 degrees + 25 degrees =65 degrees
3. 70 degrees - 45 degrees =25 degrees
lyudmila [28]2 years ago
8 0
Okay I think the first blank is CBD.
Then the next bit of blanks should be 40° + 25° = 65°.
For the last section I think it’s 70° - 45° = 25°
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If m angle 2 =70, find m angle 6
rusak2 [61]

m angle 6= 210

I'm not sure about this question

5 0
2 years ago
rashanda claims that she plays roughly 30 hours of golf per week she played 3 hours on monday 9 hours total on tuesday through t
mixas84 [53]

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Not accurate

Step-by-step explanation:

3+9+9=21

4 0
2 years ago
The students in chemistry class have 75 milliliters of a pure acid which must be diluted to a solution that is 10% acid. How man
lana66690 [7]

Answer:

Add W ml

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6 0
3 years ago
Please someone help me to prove this. ​
morpeh [17]

Answer:  see proof below

<u>Step-by-step explanation:</u>

Use the Double Angle Identity: sin 2Ф = 2sinФ · cosФ

Use the Sum/Difference Identities:

sin(α + β) = sinα · cosβ + cosα · sinβ

cos(α - β) = cosα · cosβ + sinα · sinβ

Use the Unit circle to evaluate: sin45 = cos45 = √2/2

Use the Double Angle Identities:   sin2Ф = 2sinФ · cosФ

Use the Pythagorean Identity: cos²Ф + sin²Ф = 1

<u />

<u>Proof LHS → RHS</u>

LHS:                                  2sin(45 + 2A) · cos(45 - 2A)

Sum/Difference: 2 (sin45·cos2A + cos45·sin2A) (cos45·cos2A + sin45·sin2A)

Unit Circle:    2[(√2/2)cos2A + (√2/2)sin2A][(√2/2)cos2A +(√2/2)·sin2A)]  

Expand:        2[(1/2)cos²2A  + cos2A·sin2A + (1/2)sin²2A]

Distribute:              cos²2A   + 2cos2A·sin2A + sin²2A  

Pythagorean Identity:    1 + 2cos2A·sin2A

Double Angle:                1 + sin4A

LHS = RHS:  1 + sin4A = 1 + sin4A   \checkmark

6 0
2 years ago
Ig1000+log342 - 1 -123​
Brilliant_brown [7]

Answer:

log(342) - 121

Step-by-step explanation:

-121 + log(342) is a transcendental number

-115.165189262937394847783249972808918485...

8 0
2 years ago
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