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
KATRIN_1 [288]
3 years ago
9

Can some one help with 18 and 19

Mathematics
1 answer:
bulgar [2K]3 years ago
5 0
<span>By by pythagorean theorem
12 (squared) + r (</span>squared) = (8+r) squared<span>
so 144 + r ( </span>squared) = 64 + r (squared)<span> +16r
so solving for r:
144 -64 = r </span>squared –r squared<span> + 16r
80 = 16r
so r = 80/16= 5

the second is the same
21 </span>squared + r squared = (9 + r ) squared<span>
441 + r </span>squared = 81 + r squared<span> + 18r
441 – 81 = r </span>squared – r <span>squared</span><span> + 18r
r = 360/18 = 20</span>
You might be interested in
Are the fractions 7/9 and 4/9 like fractions? Explain your
Natalka [10]

Answer:

No

Step-by-step explanation:

Because they are not proportional they do are not a multiple of each other

5 0
3 years ago
Read 2 more answers
What is the slope of (3, 3) and (-6, -3)
Veronika [31]

Answer:

m=2/3

Step by Step Explanation:

x1,y1= 3,-6

x2,y2=3,-3

m={-3-3}           (Fraction Form)

    {-6-3}

Refine:

m={2}{3}

7 0
2 years ago
Read 2 more answers
Hillside Travel pays its employees $16 per hour plus 8% commission on all trips booked. Tyrus worked 20 hours last week and book
4vir4ik [10]

Answer:

$488

Step-by-step explanation:

16×20=320

8%×2100

0.08×2100

168

320+168=$ 488

3 0
2 years ago
Help asap, please!!!!!!!!
Artemon [7]

1/6p + (-4/5) is the equivalent expression. You have to add like terms, meaning constants are added to constants, variables are added to variables, etc. the result you get from adding like variables leaves you with 1/6p + (-4/5) or 1/6p - 4/5

8 0
2 years ago
Which name could be used to describe this group of solid shapes?
miv72 [106K]

Answer: shapes with at least 1 circular face

Step-by-step explanation:

8 0
2 years ago
Read 2 more answers
Other questions:
  • Evaluate the function for x=3; f(x)= -2x+10<br><br> please show your work
    13·2 answers
  • What is the value of x?
    7·1 answer
  • Choose the required figure.
    7·1 answer
  • Thirty- five percent of students at jones high school ride the bus. Two hundred seventy-three students ride the bus. How many st
    8·1 answer
  • A carpenter cuts a board into three pieces of equal length ... smallest board is 1 ft. in length, how long was the original boar
    5·1 answer
  • Quadrilateral ABCD, shown below, is translated 3 units to the left to create quadrilateral A'B'C'D'.
    9·1 answer
  • QUICK HELPPP 20 POINTS<br> What is the solution to the equation?
    13·2 answers
  • Why cant I pick more then one subject ​
    13·1 answer
  • Help meeeeeeeeee plz qwq
    5·2 answers
  • PLS HELP I WILL GIVE 50 POINTS!
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!