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
Usimov [2.4K]
2 years ago
11

Help with math exercise question

Mathematics
1 answer:
Diano4ka-milaya [45]2 years ago
3 0

Answer:

AR is 3 using Pythagoras 5^2 - 4^2 = 3^2. sin R is just sin (AC/RC). cos is adjacent over hypoteneus. tan is oppositve over adjacent. and sec is 1/cos, csc is 1/sin, and cot is 1/tan.

You might be interested in
One of the questions Rasmussen Reports included on a 2018 survey of 2,500 likely voters asked if the country is headed in right
kap26 [50]

Answer:

Kindly check explanation

Step-by-step explanation:

Given the data:

553 - No

70 - Not Sure

384 - Yes

Total = (553 + 70 + 384) = 1007

Proportion who do think country is headed in the right direction :

P = yes / total = 384/1007 = 0.381

b.) Error margin at 95%

Margin of Error = Zcritical * √p(1-p)/n

1-p = 1 - 0.381 = 0.619

Zcritical at 95% = 1.96

Margin of error = 1.96 * √0.381(0.619)/1007

Margin of error = 0.030

C.)

95% confidence interval for heading in the right direction:

P ± margin of error

P ± 0.030

Lower boundary = 0.381 - 0.030 = 0.351

Upper boundary = 0.381 + 0.030 = 0.411

(0.351 ; 0.411)

D.)

Confidence interval for people who don't think :

P = 553 / 1007 = 0.549

Confidence interval = P ± margin of error

Error margin at 95%

Margin of Error = Zcritical * √p(1-p)/n

1-p = 1 - 0.549 = 0.451

Zcritical at 95% = 1.96

Margin of error = 1.96 * √0.549(0.451)/1007

Margin of error = 0.031

P ± margin of error

P ± 0.031

Lower boundary = 0.549 - 0.031 = 0.518

Upper boundary = 0.549 + 0.031 = 0.580

(0.518 ; 0.580)

E.)

The interval with smaller error margin is ; 0.030 (those who think country is headed in the right direction because sample proportion is farther from .5 / farther from 1)

6 0
3 years ago
According to the line Gregg below what is the total number of tickets sold ?
podryga [215]

Answer:

The answer would be 155 tickets

6 0
3 years ago
Determine 2nd term and rth term of a.p.whose 6 th term is 12 and 8 th term is 22​
Vanyuwa [196]

Answer:

see explanation

Step-by-step explanation:

The n th term of an arithmetic progression is

a_{n} = a₁ + (n - 1)d

where a₁ is the first term and d the common difference

Given a_{6} = 12 and a_{8} = 22, then

a₁ + 5d = 12 → (1)

a₁ + 7d = 22 → (2)

Subtract (1) from (2) term by term to eliminate a₁

2d = 10 ( divide both sides by 2 )

d = 5

Substitute d = 5 into (1) to find a₁

a₁ + 5(5) = 12

a₁ + 25 = 12 ( subtract 25 from both sides )

a₁ = - 13

Thus

a_{2} = - 13 + 5 = - 8

a_{n} = - 13 + 5(n - 1) = - 13 + 5n - 5 = 5n - 18 ← n th term

8 0
2 years ago
(a) A house costs 36% more today than when it
HACTEHA [7]

hi it me and I will be there

3 0
1 year ago
Read 2 more answers
2 4/7 divided by 1 3/6 =
Rudiy27

Answer:

Step-by-step explanation:

2,57 divided by 1.5 equals

1.713

7 0
1 year ago
Read 2 more answers
Other questions:
  • Help? Due today please
    7·1 answer
  • How to find the prime factorization of 65
    5·2 answers
  • Reduce the fraction 36/48 to its lowest term
    11·1 answer
  • What is the equation of a line that passes through the points (3, 6) and (8, 4) in slope intercept form?
    11·1 answer
  • What is 312/17 in simplest form.
    15·1 answer
  • Mirna earned $120 baby-sitting during the spring break. She needs to save $90 for the German Club trip. She wants to spend the r
    15·1 answer
  • Sort the words into a category based on welther they indicate a positive number or a negative number.
    10·1 answer
  • can play 18 holes of golf in 180 minutes. Calculate what is his average rate in number of minutes per holes?
    15·1 answer
  • 2.
    11·1 answer
  • Inverse of f(x)=2 1/2-3 1/3x and what is its x intercept
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!