3 years ago

Someone plz help me :(

Mathematics

1 answer:

marishachu [46]3 years ago

7 0

Answer:

the answer is c :)

Step-by-step explanation:

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Evaluate the numerical expression. 5 + (46 + 7) * 2

bulgar [2K]

5 + (46 + 7) x 2

5 + (53) x 2

5 + 106

111 is answer

PEMDAS (parenthesis, exponent, multiply & divide, add & subtract)

hope this helps

3 0

3 years ago

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Write an equation of the cosine function with amplitude pi/2 and period 3

juin [17]

Answer:

$y = \frac{\pi}{2}cos(\frac{2\pi}{3}x)$

Step-by-step explanation:

Given

$Amplitude = \frac{\pi}{2}$

$Period = 3$

Required

Write the equivalent cosine function

The general formula is:

$y = acos(bx)$

Where

$amplitude = |a|$

$period = \frac{2\pi}{b}$

Substitute $\frac{\pi}{2}$ for amplitude in $amplitude = |a|$

$|a| = \frac{\pi}{2}$

$a = \frac{\pi}{2}$

Substitute 3 for period in $period = \frac{2\pi}{b}$

$\frac{2\pi}{b} = 3$

Multiply both sides by b

$2\pi = 3b$

Divide through by 3

$b = \frac{2\pi}{3}$

Hence;

$y = acos(bx)$ becomes

$y = \frac{\pi}{2}cos(\frac{2\pi}{3}x)$

5 0

3 years ago

Find the perimeter of the figure. Round to the nearest tenth if needed. a=50 b=83 c=65

Leviafan [203]

Answer:

263

Step-by-step explanation:

50 + 83 + 65 + 65 = 263

i don’t know witch sides are which but here you go

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3 years ago

For Oscar's birthday, his grandparents gave him a 100 dollar gift card to a local movie theater. The theater charges 12 dollars

olga_2 [115]

Answer:

Move 100 to the left of a

100 a

List of all of the solutions

ax100=100a

12= 100a

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3 years ago

Binomio al cubo (x+2)3

vladimir2022 [97]

Answer:

3x+6

Step-by-step explanation:

(x+2)3

3(x)+3(2)

3x+6

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3 years ago