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
Oksi-84 [34.3K]
3 years ago
6

Please help me thanks

Mathematics
1 answer:
BabaBlast [244]3 years ago
5 0

Answer:

16.7

Step-by-step explanation:

We can use the Pythagorean theorem, a^2 + b^2 = c^2.

a = 11

c = 20

11^2 + b^2 = 20^2

121 + b^2 = 400

b^2 = 279

b = sqrt(279) = 16.7

You might be interested in
What is the answer to this math problem​
vesna_86 [32]

Hello from MrBillDoesMath!

Answer:

1/243

Discussion:  

3^(-3) *  3^(-2)                => as a^m * a^n = a^(m+n), the exponents add

= 3^ (-3 -2)

= 3^ (-5) =

= 1/ 3^5                           => as 3^5 = 243

= 1/243

which is approximately  .0041

Thank you,

MrB

7 0
3 years ago
Read 2 more answers
PLEASE HELP ASAP!!! CORRECT ANSWER ONLY PLEASE!!! I CANNOT RETAKE THIS!!
Rashid [163]

x =  \frac{ -2 \pm \:  \sqrt{ {2}^{2} - 4 \times 1 \times 10 }  }{2}  \\  \\ x =  \frac{ - 2 \pm 6i}{2}  \\  \\  \boxed{ \red{ \huge{x =  - 1 \pm \: 3i}}}

\boxed{ \red{ \huge{answer = d}}}
3 0
3 years ago
Jovita Alvarez obtained a personal loan of $3000 at 14% for 24 months. The monthly payment is $144 the balance of the loan after
xxTIMURxx [149]
Ooo this is hard, I got a little confused
4 0
3 years ago
Wendy earned $14 per hour for x hours, plus a bonus of $50. Write an expression that represents how much Wendy earned.
erastova [34]

Step-by-step explanation:

I think this should be the expression

X = 14 + 50

5 0
3 years ago
Read 2 more answers
A train leaves Philadelphia at 2:00 PM. A second train leaves the same city in the same direction at 4:00 PM. The second train t
polet [3.4K]

Answer: First train speed shall be 42 mi/hr

Second train speed shall be 84 mi/hr

Yes it is the valid answer, it gets annoying when almost everyone enters the wrong answer for a good laugh. Either way, hope this helps! Have a spectacular day.

Step-by-step explanation:

What is the 1st train's head start in miles?

Let +s+ = the speed of the 1st train in mi/hr

From 2PM to 4PM is 2 hrs

+d%5B1%5D+=+s%2A2+

---------------------

Let +d+ = distance the 2nd train travels until

it overtakes the 1st train

From 4PM to 6PM is 2 hrs

Start time when the 2nd train leaves

---------------------

Equation for 1st train:

(1) +d+-+2s+=+s%2A2+

Equation for 2nd train:

(2) +d+=+%28+s%2B42+%29%2A2+

--------------------

Substitute (2) into (1)

(1) +%28+s%2B42+%29%2A2+-+2s+=+s%2A2+

(1) +2s+%2B+84+-+2s+=+2s+

(1) +2s+=+84+

(1) +s+=+42+

and

+s%2B+42+=+42+%2B+42+

+s+%2B+42+=+84+

------------------

The 1st train's speed is 42 mi/hr

The 2nd train's speed is 84 mi/hr

---------------------------

check:

(2) +d+=+%28+s%2B42+%29%2A2+

(2) +d+=84%2A2+

(2) +d+=+168+

and

(1) +d+-+2s+=+s%2A2+

(1) +d+-+2%2A42+=+42%2A2+

(1) +d+=+84+%2B+84+

(1) +d+=+168+

8 0
2 years ago
Other questions:
  • How do you write one million, twelve thousand, sixty widgets in standard form
    13·1 answer
  • to make 2 batches of nut bars. jayda needs to use 4 eggs. how many eggs are used in each batch of nut bars?
    5·2 answers
  • What is the solution of this system of linear equations? 3y = x + 6 y – x = 3
    13·2 answers
  • You draw two marbles without replacement from a bag containing 2 green marbles and 3 black marbles. What are the possible outcom
    10·1 answer
  • Use the grouping method to factor the polynomial below completely.
    7·1 answer
  • Which expression is equivalent to ( x<br> 27<br> ვ<br> ?<br> o x*(V)<br> o x?? (2)<br> *24 (/
    6·1 answer
  • Maths - 7 out of 10 students are boys. If there are 30 students, how many of them are girls? Help me I stuck
    7·1 answer
  • Find the possible dimensions of the sports field given if the width is at least 50yards. need help asap
    12·1 answer
  • Simplify by dividing negative three over eight divided by five over nine..
    15·1 answer
  • What is 5/6 × 4/9? I'm a little confused
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!