1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Gre4nikov [31]
3 years ago
9

In a right-angled triangle, the side opposite the right angle is unknown, how do you find out the unknown length? (Hypotenuse I

think)
Mathematics
2 answers:
olga55 [171]3 years ago
8 0
Yes, it is the hypotenuse. You can use pythagoras' theorem or the sine rule. you can use either as long as you know the two other side lengths of the triangle
MrMuchimi3 years ago
3 0
A<em />²+b²=c² (c is the hypotenuses <span />
You might be interested in
If x=3 than 5x+2=<br><br> HELPPPPPPPPP
Sphinxa [80]
5(3) + 2 =

15 + 2 =

17
4 0
2 years ago
Read 2 more answers
If multiplying by a negative you switch the direction of the sign true or false?
MrMuchimi

Answer:

true

Step-by-step explanation:

5 0
3 years ago
2/7m-1/7=3/14 solve step by step
yulyashka [42]

Solution for \frac{2}{7}m - \frac{1}{7} = \frac{3}{14} \ is \ m = \frac{5}{4} \ or \ m = 1\frac{1}{4} \ or \ m = 1.25

<h3>Further explanation</h3>

It is a case about one variable linear quations and we have to solve the equation to get the variable m. There are two ways to solve it!

Our main plan is to isolate the variable m alone at the end of the process on one side of the equation until the variable will be equal to the value on the opposite side.

<u>First way</u>

\frac{2}{7}m - \frac{1}{7} = \frac{3}{14}

Let us add \frac{1}{7} to both sides

\frac{2}{7}m - \frac{1}{7} + \frac{1}{7} = \frac{3}{14} + \frac{1}{7}

\frac{2}{7}m = \frac{3}{14} + \frac{1}{7}

On the right side for the addition operation, we equate the common denominator by multiplying \ \frac{1}{7} \ by \ \frac{2}{2}

\frac{2}{7}m = \frac{3}{14} + \frac{2}{14}

Then we combine terms to get

\frac{2}{7}m = \frac{5}{14}

Divide by the coefficient of m, or in other words, multiply both sides by \frac{7}{2}

\frac{2}{7}m \times \frac{7}{2} = \frac{5}{14} \times \frac{7}{2}

Finally, the solution is obtained as follows

m = \frac{35}{28}

Simplify fractions, both the numerator and denominator are divided equally by 7.

\boxed{ \ m = \frac{5}{4} \ }

Convert into mixed fractions, we get:

\boxed{ \ m = 1 \frac{1}{4} \ }

In decimal form, we get

m = 1 \frac{25}{100} \rightarrow \boxed{ \ m = 1.25 \ }

<u>Second way (a quick way)</u>

\frac{2}{7}m - \frac{1}{7} = \frac{3}{14}

Because the denominators 7 and 14 have LCM = 14, both sides are multiplied by 14 (LCM is the Least Common Multiple)

14 \times \big( \frac{2}{7}m - \frac{1}{7} \big) = 14\times \big( \frac{3}{14} \big)

We use the distributive property of multiplication on the left side

\frac{28}{7}m - \frac{14}{7} = \frac{42}{14}

or it can also directly lead to

4m - 2 = 3

Add 2 to both sides, we get

4m = 5

Divide by the coefficient of m, or in other words, both sides are divided by 4

\boxed{ \ m = \frac{5}{4} \ }

Or, \boxed{ \ m = 1 \frac{1}{4} \ }

Or, m = 1 \frac{25}{100} \rightarrow \boxed{ \ m = 1.25 \ }

Wanna check the solution into the equation?

\big( \frac{2}{7} \times \frac{5}{4} \big) - \frac{1}{7} = \frac{3}{14}

\frac{10}{28} - \frac{1}{7} = \frac{3}{14}

\frac{5}{14} - \frac{2}{14} = \frac{3}{14}

\frac{3}{14} = \frac{3}{14}

Both sides show the same value, so the solution is correct.

Note:

Remember, how to manipulate both sides of the equation with the algebraic properties of equality such as:

  • adding,
  • subtracting,
  • multiplying, and/or
  • dividing both sides of the equation with the same number.

In the form of fractions, the steps that must be considered are

  • equate the denominator,
  • simplify fractions, and
  • for the final answer, convert fractions to mixed fractions or decimal forms

All these processes can occur repeatedly until the isolated variables are obtained on one side of the equation.

<h3>Learn more</h3>
  1. A word problem that forms a single variable linear equation brainly.com/question/1566971
  2. Learn more about the single variable linear equation that has no solution, has one solution, and has infinitely many solutions brainly.com/question/2595790  
  3. Questioning the stages of solving a word problem about one variable linear equations brainly.com/question/2038876
<h3>Answer details  </h3>

Grade : Middle School

Subject : Mathematics

Chapter : Linear Equation in One Variable

Keywords : solve, solution, variable, coefficient, 2/7m - 1/7 = 3/14,  5/4, 1 1/4, 1.125, algebraic properties of equality, one, linear equation, isolated, manipulate, operations, add, subtract, multiply, divide, fraction, equate, denominator, numerator, both sides, decimal

4 0
3 years ago
Read 2 more answers
Cartoon=uuu
LekaFEV [45]

Answer:

three u's and an I

Step-by-step explanation:

3×3=9

that's 3 u's so if you add an I its 10

8 0
3 years ago
A nature center offers 2 guided walks.The morning walk is 2 third mile.The evening walk is 3 sixth mile.Which walk is shorter?
Sergio039 [100]
The evening walk is shorter because 3/6 is 1/2 or .5 a mile, while 2/3 mile is .66 a mile
7 0
3 years ago
Read 2 more answers
Other questions:
  • Kamal bought 77 packs of paper clips for a project. then he bought 88 more packs. there are 2525 paper clips in each pack. how m
    8·1 answer
  • Write this number in standard form 4,000,000+300,000+10,000+500+30+7
    7·2 answers
  • -2+{-3}=<br> Helpppp meeee
    8·2 answers
  • List the states of matter of three common types of precipitation
    8·2 answers
  • The lines below are perpendicular if the slope of the green line is 3/2 what is the slope of the red line
    8·2 answers
  • What are the coefficients for the expression <br><img src="https://tex.z-dn.net/?f=4x4%20%2B%20x3%20%20-%202x2%20-%206x%20%2B%20
    7·2 answers
  • under the tree ba dum ba dum under the tree ba dum ba dum i am a dog under the log under the tree ba dum ba dum
    15·2 answers
  • In the equation 3b+4=7, what is the 4
    6·1 answer
  • PLS HELP ILL MARK U BRAINLIEST<br> I DID THE FIRST 1 I NEED HELP WITH THE SECOND &lt;3
    6·1 answer
  • Find the area of the triangle
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!