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3 years ago

Please help 25 points

Mathematics

1 answer:

Maksim231197 [3]3 years ago

7 0

Answer:

5400

Step-by-step explanation:

look at the photo it shows the problems that

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Given that sin(90 -5ϴ) = Cos(180 - ϴ), Find the value of ϴ<br>

lilavasa [31]

Answer:

30°

Step-by-step explanation:

$\because \: \sin(90 \degree - \theta) = \cos \theta \\ \therefore \: \sin(90 \degree - 5 \theta) = \cos 5\theta....(1) \\ \\ \sin(90 \degree - 5 \theta) = \cos(180 \degree - \theta)...(2) \\ from \: (1) \: and \: (2) \\ \cos 5\theta = \cos(180 \degree - \theta) \\ 5 \theta = 180 \degree - \theta \\ 5 \theta + \theta= 180 \degree \\ 6\theta= 180 \degree \\ \theta = \frac{180 \degree}{6} \\ \\ \huge \red{ \boxed{\theta = 30 \degree}}$

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3 years ago

Pie stands for 3.14 but need to know the answer

Kaylis [27]

the formula for this questions would be pie multiplyed by d

so to solve this problem you would 3.14* 120 which equals 376.8

what you need to do to find six laps is multiply 376.8 with 6

which gives you 2260.8

answer- 2260.8

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2 years ago

Brad has groups of 10 pennies. Brad counts 40, but he has 6 more stacks to count. How many pennies does he have? Explain your an

GrogVix [38]

Answer:

100 pennies

Step-by-step explanation:

each stack is 10 pennies. brad has 4 stacks which equal 40 and has 6 more stack which qual 60. 40+60=100

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3 years ago

Solve using the quadratic formula

Novay_Z [31]

Answer: 5.17, -0.67

Step-by-step explanation: Solve the equation for p by finding a, b, and c of the qudratic then applying the qquadratic formula

Excact Form: p = 9 + √137/4, 9 - √137/4

Decimal Form:

p = 5.17617497 . . . , -0.67617497 . . .

Hope this helps! :)

~Zane

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3 years ago

Solve the system by substitution.<br> x= -5y - 6<br> 5x – 3y = -2 <br> What’s is the solution?

Alecsey [184]

(-1,-1)

I recommend photomath, it helps with all equations!

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3 years ago