2 years ago

Is the square root of 0.49 rational

Mathematics

1 answer:

Galina-37 [17]2 years ago

6 0

Answer:

rational

Best of luck!

You might be interested in

Multiply -c^2(3c-2) apply distributive property and multiply

alexandr402 [8]

Answer:

$\large\boxed{-c^2(3c-2)=-3c^3+2c^2}$

Step-by-step explanation:

$-c^2(3c-2)\qquad\text{use the distributive property}\ a(b+c)=ab+ac\\\\=(-c^2)(3c)+(-c^2)(-2)\\\\=-3c^3+2c^2$

7 0

2 years ago

If sec(theta) =25/24, find cot(theta) (Picture provided)

larisa [96]

Answer:

Step-by-step explanation:

By the definition,

$\sec \theta=\dfrac{\text{hypotenuse}}{\text{adjacent leg}}.$

If $\sec \theta=\dfrac{25}{24},$ we can consider right triangle with hypotenuse 25 un. and adjacent leg 24 un. By the Pythagorean theorem,

$\text{hypotenuse}^2=\text{adjacent leg}^2+\text{opposite leg}^2,\\ \\\text{opposite leg}^2=25^2-24^2,\\ \\\text{opposite leg}^2=625-576,\\ \\\text{opposite leg}^2=49,\\ \\\text{opposite leg}=7\ un.$

So,

$\cot \theta=\dfrac{\text{adjacent leg}}{\text{opposite leg}}=\dfrac{24}{7}.$

8 0

3 years ago

Read 2 more answers

If 15% off an item cost 36.21 then what would 100% of the item be?

harina [27]

1-0.15=0.85
36.21/0.85=42.6=ANSWER

3 0

2 years ago

Read 2 more answers

(i made this account for my little sister so if you guys could help her with her questions that would be amazing) there are 115

Virty [35]

There are 23 chairs in each class. Never go to any of the sites that people say to download for your answer they are trafficking sites.

5 0

2 years ago

Sandra throws an object into the air with an initial vertical velocity of 38 feet per second, from a platform that is 30 feet ab

Blababa [14]

<span>To solve it, use the quadratic formula with (½)(-32.174 ft/s²) = a, 38 ft/s = b, and 30 ft = c. There are two answers; the only positive answer is t = 2.986 s </span>

4 0

2 years ago

Read 2 more answers