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Pepsi [2]
2 years ago
8

Lila drew the picture below, and then she wrote the equation on the right to represent her work with the shapes.

Mathematics
2 answers:
Lera25 [3.4K]2 years ago
6 0

Answer:

can't see the picture

Step-by-step explanation:

Licemer1 [7]2 years ago
4 0

Answer:

fjftfjfjfjfhg

Step-by-step explanation:

fjfjdjfjfjfjf

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In a newspaper, it was reported that yearly robberies in Springfield were down 25% to 78 in 2013 from 2012. How many robberies w
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There were 30% in 2012 to 2013
5 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
Which operation should you perform first when you simplify the expression below? 10 ÷ 2 + 3(8 × 9)= A addition B subtraction C m
N76 [4]
C. multiplication (the 8 x 9 within the parenthesis)
8 0
3 years ago
You call the pizza store and find out that each pizza has 12 slices. you expect 16 people to come, and you estimate each person
zysi [14]
Nx/y=z
3(16)/12=z
3x16=48/12=4
z=4
4 0
3 years ago
Find the sum<br> −1/2(7z+4)+15(5z−15)
sattari [20]

Answer: \frac{143x - 453}{2}

Step-by-step explanation:

4 0
2 years ago
Read 2 more answers
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