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viktelen [127]
3 years ago
13

Which expression finds the length of side b of this right triangle. PLEASE HELP. I’LL GIVE BRAINIEST

Mathematics
2 answers:
Olegator [25]3 years ago
8 0

<u>Answer</u><u>:</u>

  • b =  \sqrt{ {c}^{2}  -  {a}^{2} }

<u>S</u><u>t</u><u>e</u><u>p</u><u>-</u><u>b</u><u>y</u><u>-</u><u>S</u><u>t</u><u>e</u><u>p</u><u> </u><u>Explanation</u><u>:</u>

In the given right-angled triangle, the largest angle is 90°. And side c is opposite to it, hence c is the hypotenuse.

Then, a and b are the leg sides of the triangle i.e. base and perpendicular. Then, By using Pythagoras theoram:

\longrightarrow{{a}^{2}  +  {b}^{2}  =  {c}^{2}}

Now shifting a² by subtracting from both sides,

\longrightarrow{{b}^{2}  =   {c}^{2}  -  {a}^{2}}

We need b, square rooting both sides

\longrightarrow{b =  \sqrt{ {c}^{2}  -  {a}^{2} }}

That is Option B. And we are done! :D

Monica [59]3 years ago
3 0

Answer:

The answer is b = √(c² - a²).

Step-by-step explanation:

For right angle triangle, you can apply Pythagoras Theorem where c² = a² + b² .

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3 0
3 years ago
Fiona divided 3x2+5x-3 by 3x+2. The expression represents the remainder over the divisor.
Lera25 [3.4K]

Answer:

-5

Step-by-step explanation:

Shown in the attachment.

The remainder when 3x^2 +5x -3 is divided by 3x+2 is -5

4 0
3 years ago
12x-4x+3+11 help me solve this problem
daser333 [38]

Answer:

8x + 14

Step-by-step explanation:

12x - 4x + 3 + 11 <em>(</em><em>Subtract</em><em> </em><em>12x</em><em> </em><em>-</em><em> </em><em>4x</em><em>)</em>

8x + 3 + 11<em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em>(</em><em>Add</em><em> </em><em>3</em><em> </em><em>+</em><em> </em><em>1</em><em>1</em><em>)</em>

8x + 14

Tip: the like-terms 12x and 4x can be subtracted like regular numbers because they have the same variable and exponent.

6 0
3 years ago
What is 7.66666666667 in a simplified fraction?
KonstantinChe [14]

it cannot be simplified, only rounded. THis rounded as a fraction is "7 7/10"

6 0
3 years ago
Read 2 more answers
Will give Brain!! To this
Mamont248 [21]

Answer: 13.2

Step-by-step explanation:

the ratio between the given measurements (11 and 5) is 2.2 [5 x 2.2 = 11]

so, i just multiplied 6 by 2.2 , which equals 13.2 .

hope this helps! xoxo

7 0
3 years ago
Read 2 more answers
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