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
Tpy6a [65]
3 years ago
13

In ΔQRS, q = 1.3 inches, r = 1.6 inches and ∠S=157°. Find the length of s, to the nearest 10th of an inch.

Mathematics
1 answer:
hjlf3 years ago
8 0

Answer:

2.8

Step-by-step explanation:

using cosine rule

s^{2} = 1.3^{2} + 1.6^{2} - 2(1.3)(1.6)cos 157

s = \sqrt{8.0793} = 2.842 = 2.8

You might be interested in
10. How much more or less is the amount spent than the amount
oksian1 [2.3K]

Answer:

(B)

Step-by-step explanation:

3 0
2 years ago
A smog alert has been called in a certain area of Los Angeles County in which there are 50 industrial rms. An inspector will vis
damaskus [11]

Answer:

Part (A) The required PMF is: P(X=x)=\frac{\binom{15}{x}\binom{50-15}{10-x}}{\binom{50}{10}}

Part (B) B(x;n,p)=\binom{10}{x}(0.3)^x(1-0.3)^{10-x}

Step-by-step explanation:

Consider the provided information.

There are 50 industrial rms. An inspector will visit 10 randomly selected rms to check for violations of regulations.

Part (A)

15 of the rms are actually violating at least one regulation.

Let X is the number of firms violate at least one regulation from 10 randomly selected rms to check for violations of regulations out of 50 firms of which 15 5 of the rms are actually violating.

Therefore, X\sim Hypergeom(n=10, M=15\ and\ N=50)

We need to determine probability mass function.

P(X=x)=Hyper(x; n=10, M=15, N=50)\\=\frac{\binom{15}{x}\binom{50-15}{10-x}}{\binom{50}{10}}

Hence, the required PMF is: P(X=x)=\frac{\binom{15}{x}\binom{50-15}{10-x}}{\binom{50}{10}}

Part (B)  If there are 500 rms in the area, of which 150 are in violation, approximate the pmf of part.

Here N=500 so find the probability of p as shown below:

p=\frac{150}{500} =0.3 and n=10

B(x;n,p)=B(x;10,0.3)\\=\binom{10}{x}(0.3)^x(1-0.3)^{10-x}

5 0
3 years ago
Unscramble the words
katrin2010 [14]

Number 17 is Infinity. I'm still working on the rest

3 0
3 years ago
Read 2 more answers
(A-6) to the power of 2 turned into equation
weeeeeb [17]
1) acknowledge the rule that anything that’s outside of the bracket applies to EVERYTHING inside of the bracket
2)apply the rule: (A-6)^2
3 0
3 years ago
3. There are 124 acorns laying on the ground in your yard, it is predicted that the number of acorns will
Gennadij [26K]

Answer:

507,409

Step-by-step explanation:

if every 5 days the number quadruples (x4), and we want to know how many acorns fall after 30 days, we can divide 30 by 5 so we only have to calculate for the amount of time the take to quadruple.

30 ÷ 5 = 6

so we only have to quadruple the acorns 6 times.

if we start off with 124 acorns, this is what it will look like:

Day 0: 124 acorns

Day 5: 124 x 4 = 496 acorns

Day 10: 496 x 4 = 1984 acorns

Day 15: 1984 x 4 = 7936 acorns

etc... until day 30.

Day 30: 507904 acorns

I hope this was helpful :-)

5 0
3 years ago
Other questions:
  • a scale drawn on the map shows that 1 inch represents 16 miles. if two cities are 3.25 inches apart on the map, what is the dist
    14·1 answer
  • Evaluate <br> (86)(8-3)(4-2)<br> 2<br> .<br><br> A) 8 <br> B) 16 <br> C) 32 <br> D) 64
    13·1 answer
  • Bruce bought 3 2/5 lb of ground beef to make hamburgers to grill out of barbecue how many 1/4 pounds of hamburgers can he make
    14·1 answer
  • What row of Pascal's triangle should be used when looking for the number of ways 15 students can be selected from a class of 32
    11·2 answers
  • How can you use remainders in divison problems
    9·2 answers
  • What is the x-value in the solution to the system? 8x+3y=7 4x+3y=2
    7·1 answer
  • SOMEONE HELP ME PLEASE
    15·1 answer
  • 7
    9·1 answer
  • Find the slope and y-intercept from the table shown.
    6·1 answer
  • A shipping company must design a closed rectangular shipping crate with a square base. The volume is 2880ft3. The material for t
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!