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N76 [4]
3 years ago
15

8+12:4-6x2+5 How do u get the answer

Mathematics
1 answer:
wlad13 [49]3 years ago
6 0

Step-by-step explanation:

8 + 12

20

4 - 6 × 2 + 5

use pemdas

4 - 12 + 5

-8 + 5

-3

20:-3

focus on one side at a time

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Solve the equation on the interval [0, 2pi): 12cos^2 x-9=0<br><br><br> What to do?
siniylev [52]

Answer:

\large\boxed{x=\dfrac{\pi}{6}\ \vee\ x=\dfrac{5\pi}{6}\ \vee\ x=\dfrac{7\pi}{6}\ \vee\ x=\dfrac{11\pi}{6}}

Step-by-step explanation:

12\cos^2x-9=0\qquad\text{add 9 to both sides}\\\\12\cos^2x=9\qquad\text{divide both sides by 12}\\\\\cos^2x=\dfrac{9}{12}\\\\\cos^2x=\dfrac{9:3}{12:3}\\\\\cos^2x=\dfrac{3}{4}\to\cos x=\pm\sqrt{\dfrac{3}{4}}\\\\\cos x=\pm\dfrac{\sqrt3}{2}\\\\\text{Look at the picture}\\\\x=\dfrac{\pi}{6}\ \vee\ x=\dfrac{5\pi}{6}\ \vee\ x=\dfrac{7\pi}{6}\ \vee\ x=\dfrac{11\pi}{6}

6 0
3 years ago
What is 763 thousandths in scientific notation
tester [92]

Answer:

763,000 in scientific notation. the scientific notation of 763,000 is equal to 7.63 ×

8 0
3 years ago
A culture of 1.08×1015 bacteria is in petri dish A. A culture of 2.7×1011 bacteria is in petri dish B.
dalvyx [7]
<span> 1.08×10^15
------------------ = 0.4 x 10^4 = 4000
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3 0
3 years ago
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Complete two expressions that have the same product as 3 x 5. 12
likoan [24]

The two expressions that would have the same product as 3.5 x 5.12 are:

184.32 x 1/12

76.8 x 3/12

<h3>What is the product of the a number?</h3>

The product of a number is the value that is derived when two or more numbers are multiplied by each other.

Product of 3 and 5.12 is 15.36.

In order to determine what number should be multipled by 1/12 to yield 15.36, multiply 15.36 by 12: 15.36 x 12 = 184.32

In order to determine what number should be multipled by 3/12 to yield 15.36, multiply 15.36 by 4: 15.36 x 4 = 76.8

To learn more about multiplication, please check: brainly.com/question/13814687

4 0
2 years ago
A cereal box has a height of 32 centimeters. It has a base with an area of 160 square centimeters.
vovangra [49]

Answer:

You would multiply 160 by 32 and get an answer of 5120 centimeters cubed.

Step-by-step explanation:You would multiply 160 by 32 and get an answer of 5120 centimeters cubed.

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2 years ago
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