2 years ago

Which of the following statement about rational numbers is NOT correct

Mathematics

2 answers:

viva [34]2 years ago

7 0

D, Rational numbers can't ever be negative. My teacher taught us this few days ago.

Hope you got the answer :D

expeople1 [14]2 years ago

5 0

Rational numbers cannot be negative and i think that's about it

Hope this helps!

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I need some help please What's |5| + |–7|?

luda_lava [24]

Answer:

<h3>hello there!</h3>

$\left|5\right|+\left|-7\right|$

$rule =a,\:a\ge 0$

$|5|=5$

$\mathrm{Apply\:absolute\:rule}:\quad \left|-a\right|=a$

$\left|-7\right|=7$

$5+7=$

$12$

hope this helps you..

5 0

2 years ago

Me pueden ayudar porfa

xz_007 [3.2K]

Answer:

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Step-by-step explanation:

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2 years ago

Homework Help ASAP

Vlad [161]

Answer:

3/4 gallon of purple paint left

Step-by-step explanation:

3/8 + 5/8 =8/8

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2 years ago

Hello can someone send me some documment for geometry where are the signs explained(Like )

Ket [755]

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https://revisionmaths.com/gcse-maths-revision/shape-and-space/vectors

i find this helpful- hope u do too (can u mark my answer as brainliest?)

3 0

2 years ago

From a radar station, the angle of elevation of an approaching airplane is 32.5 degree. The horizontal distance between the plan

denis23 [38]

Answer: 42.21 km

Step-by-step explanation:

We can solve this using trigonometry, since we have the following data:

$\theta=32.5\°$ is the the angle of elevation

$d=35.6 km$ is the horizontal distance between the plane and the radar station

$x$ is the hypotenuse of the right triangle formed between the radar station and the airplane

Now, the trigonometric function that will be used is <u>cosine</u>:

$cos\theta=\frac{d}{x}$ because $d$ is the adjacent side of the right triangle

$cos(32.5\°)=\frac{35.6 km}{x}$

Finding $x$ :

$x=\frac{35.6 km}{cos(32.5\°)}$

$x=42.21 km$

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2 years ago