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2 years ago

7

Help help help PLEASEEEEE

1 answer:

AysviL [449]2 years ago

6 0

Answer:

m=4b and b=4m

Step-by-step explanation:

this is the right answer

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Solve the equation on the<br> interval [0, 2π).<br> √2 cos x - 1 = 0

jek_recluse [69]

Answer:

Step-by-step explanation:

$\sqrt{2} cos x-1=0\\cos x=\frac{1}{\sqrt{2} } =cos (\frac{\pi }{4} ),cos (2\pi -\frac{\pi }{4} )\\cos x=cos(2n\pi +\frac{\pi }{4} ),cos(2n\pi +\frac{7\pi }{4} )\\x=2n\pi +\frac{\pi }{4} ,2n\pi +\frac{7\pi }{4} \\n=0\\x=\frac{\pi }{4} ,\frac{7\pi }{4}$

8 0

2 years ago

Which of the following expressions represents the least common multiple of 15, 18, and 25?

Virty [35]

Answer:

$(2)(3^2)(5^2)$

Step-by-step explanation:

we know that

The <u>Least Common Multiple</u> (LCM) of a group of numbers is the smallest number that is a multiple of all the numbers.

we have

15,18 and 25

Decompose the numbers in prime factors

$15=(3)(5)$

$18=(2)(3^2)$

$25=(5^2)$

Multiply common and uncommon numbers with their greatest exponent

so

The LCM is equal to

$LCM=(2)(3^2)(5^2)$

$LCM=450$

7 0

3 years ago

Which is greater: 5 yards or 150 inches?

il63 [147K]

Answer:

5 yards.

Step-by-step explanation:

5 yards = 180 inches

4 0

2 years ago

If 48% of a number, n, is 40.32, what is 20% of n?

jok3333 [9.3K]

Answer:

Step-by-step explanation:

48% of n = 0.48n = 40.32

n = 84

20% of n = 0.20*84 = 16.8

7 0

2 years ago

PLS HELP ME THIS IS HARDD

pogonyaev

Answer:

it would be the second answer because the shape has to get 3/4 smaller than the pre-image

Step-by-step explanation:

6 0

3 years ago