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2 years ago

“Half of a number (n) is at least 22." translate and solve

Mathematics

1 answer:

viktelen [127]2 years ago

8 0

Answer:

n >_44

Step-by-step explanation:

1/2n>_22

(times 2 on both sides)

n >_44

*** >_ is greater than or equal to sign

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What is the exact value of arccos(−2√2) ?

Strike441 [17]

Answer:

See explanation

Step-by-step explanation:

The range of the cosine function is $-1\le \cos x\le 1$

Therefore $arc \cos (-2\sqrt{2})$ is not defined.

Assuming your question is rather $arc \cos (-\frac{\sqrt{2}}{2})$

Then $arc \cos (-\frac{\sqrt{2}}{2})=\pi-arc \cos (\frac{\sqrt{2}}{2})$ in the second quadrant.

$arc \cos (-\frac{\sqrt{2}}{2})=\pi-\frac{\pi}{4}$

$arc \cos (-\frac{\sqrt{2}}{2})=\frac{3\pi}{4}$

4 0

3 years ago

A FIGURE HAS AN AREA OF 50 UNITS.WHAT WILL THE NEW AREA BE AFTER A DILATION WITH SCALE FACTOR OF 3

xenn [34]

Answer:

150 units

Step-by-step explanation:

50 x 3 = 150

6 0

2 years ago

Need help to answer

Korolek [52]

Remember, you can do anything to an equation as long as you do it to both sides

times 4 both sides because we hate fractions
3x+8=16x-4
minus 3x both sides
8=13x-4
add 4 both sides
12=13x
divide both sides by 13
12/13=x
x=12/13

4 0

3 years ago

6.0 x 10^4 x 3.1 x 10 ^-1

GarryVolchara [31]

=18600
Hope this helped!

5 0

3 years ago

-1/2 + ( 3/4 x 4/9)= <br><br><br><br>

Bogdan [553]

Answer:

Too tired to explain, here's some digital steps by Symbolab:

6 0

3 years ago