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
olga_2 [115]
2 years ago
12

Find the length of the missing side in the figure below. a = _______ cm.

Mathematics
1 answer:
WITCHER [35]2 years ago
5 0

Answer:

\frac{2 \sqrt{177} }{5}

or

5.32cm correct to 2 decimal places

Step-by-step explanation:

This is a right angled triangle from what I know so we have to apply pythagoras theorem.

{7.1}^{2}  =  {a}^{2}  +  {4.7}^{2}

we need to rearrange this to find a²

{a}^{2}  =  {7.1}^{2}  -  {4.7}^{2}

a =  \sqrt{ \frac{708}{25} }

This can either be written as a fraction or decimal.

a =  \frac{2 \sqrt{177} }{5}

OR

a = 5.32

correct to 2 decimal places

You might be interested in
Eva works as a salesperson at an electronics store and sells phones and phone accessories. Eva earns a $8 commission for every p
adoni [48]

Answer:

Hope this helps out dude!

Step-by-step explanation:

6 0
3 years ago
Solve the system using substitution.<br> 2x = 5y + 14<br> x = 5y
andrew-mc [135]

Answer:

<h2>y = 2.8</h2><h2>x = 14</h2>

Step-by-step explanation:

To solve an equation, we can only have one variable. In this case, we are given the system 2x = 5y + 14. However, we are given the value of x in terms of y. We can substitute 10y in for 2x and solve.

10y = 5y + 14

First, we need to get all the variables on one side of the equation, so we subtract 5y.

5y = 14

Divide by 5

y = 14/5 or 2 4/5 or 2.8

Now for the x part.

2x = x + 14

Subtract 1x

x = 14

Now we check our answer.

2(14) = 5(2.8) + 14

28 = 14 + 14

28 = 28

Because 28 equals 28, our solutions are correct.

7 0
3 years ago
Is 3/10 of the visitors were adults and there were 100 visitors how many visitors were adults?
e-lub [12.9K]
So, 3/10 = 100/x\frac{3}{10}= \frac{100}{x}  3x=100(10) 3x=1000 1000/3 = 333.33=x
5 0
3 years ago
Have x 50 notes and y N100 notes. There
Illusion [34]

Answer:

hi

Step-by-step explanation:

hi

5 0
3 years ago
Read 2 more answers
Is 30:12 and 40:16 equivalent
iVinArrow [24]
Translate to fraction
are 30/12 and 40/16 equivilent?

if a/b=c/d then a/b times d/c=1
basically if ad=bc then they are equivilent

30/12 ad 40/16 equvilient?
30/12 times 16/40=1?
480/480=1?
1=1?
yes
they are equivilent
6 0
3 years ago
Other questions:
  • Did i do #7 correctly?
    15·2 answers
  • To make extra money Jeremy is building bookcases for some teachers at his school. If Jeremy builds 1 bookcase in 45 minutes, whi
    6·2 answers
  • Find the value of the variable. <br> 66<br><br> 32<br><br> 29<br><br> 43
    15·1 answer
  • PLEASE HELP!!!! Explain why a quadratic equation with a positive discriminant has two real solutions, a quadratic equation with
    5·1 answer
  • What is 168 cm in feet
    14·2 answers
  • Which point on the number line represents the product of 4 and –2?
    12·2 answers
  • What is 1+9x3(2x+32)<br> plesse help me if you know it thank you for the help.
    11·2 answers
  • Can yall help what is 80 x 863 0.0
    14·1 answer
  • 1. Find the vertex, focus, directrix, and focal width of the parabola x^2 = 12y (1 point)
    5·2 answers
  • Consider the line y equals 2 over 5 x plus 4.
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!