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
qwelly [4]
3 years ago
13

Please answer this question now correct

Mathematics
1 answer:
Natalka [10]3 years ago
3 0

Answer:

Step-by-step explanation:

cosine law

a²=b²+c²-2(bc)cos44  (c=20, b=15)

a²=15²+20²-2(15*20)cos44

a=√15²+20²-2(15*20)cos44

a=13.91

You might be interested in
Simplify. Write answers with positive exponents only.
Margaret [11]

Answer:

2x

Step-by-step explanation:

when the base is the same, we subtract when dividing, so

3-2=1, 2x^1=2x

3 0
3 years ago
There are 270 students at Colfax Middle School, where the ratio of boys to girls is 5:4. There are 180 students at Winthrop Midd
zavuch27 [327]

Given:

Total number of students at Colfax Middle School = 270

Ratio of boys to girls is 5:4.

Total number of students at Winthrop Middle School = 180

Ratio of boys to girls is 4:5.

The two schools hold a dance and all students from both schools attend.

To find:

The fraction of the students at the dance are girls

Solution:

There are 270 students at Colfax Middle School, where the ratio of boys to girls is 5:4.

5+4=9

Number of boys =270\times \dfrac{5}{9}=150

Number of girls =270\times \dfrac{4}{9}=120

There are 180 students at Winthrop Middle School, where the ratio of boys to girls is 4:5.

4+5=9

Number of boys =180\times \dfrac{4}{9}=80

Number of girls =180\times \dfrac{5}{9}=100

Now,

Total number of students in both schools = 270+180

                                                                = 450

Total number of girls in both schools = 120+100

                                                         = 220

The fraction of the students at the dance are girls is

\text{Required fraction}=\dfrac{\text{Total number of girls in both schools}}{\text{Total number of students in both schools}}

\text{Required fraction}=\dfrac{220}{450}

\text{Required fraction}=\dfrac{22}{45}

Therefore, the required fraction is \dfrac{22}{45}.                                

7 0
3 years ago
you borrow $5,860 from a bank you will have monthly payments of $205.10 for 3 years what percent will you pay back in interest o
disa [49]

Answer:

  26%

Step-by-step explanation:

Your 36 monthly payments will total ...

  36 × $205.10 = $7383.60

$5860 of that is the amount you borrowed. The remainder is the interest you pay:

  $7383.60 -5860 = $1,523.60

As a percentage of the original loan amount this is ...

  $1523.60/$5860 × 100% = 26%

You pay back 26% of the original loan amount in interest.

3 0
3 years ago
The difference of a number x and 5.
DiKsa [7]

Answer:

Below

Step-by-step explanation:

Difference= ‘-’

=

x - 5

3 0
3 years ago
A student said thst the distance between (-5,7) and (3,7) is 2 units<br>is the student correct?
Usimov [2.4K]

No.


The distance is |-5 -3| = 8 units. (Y-coordinates are the same, so the distance is measured entirely in the x-direction. Distance is non-negative.)

3 0
3 years ago
Other questions:
  • Use an algebraic rule to describe a translation right 4 units and down 2 units.
    12·1 answer
  • A shopkeeper marks his goods at 40% above cost (the price he pays for the goods) and then offers a 25% discount. If a jacket cos
    14·2 answers
  • If an object is NOT moving, it does not have _____.
    12·2 answers
  • Write the Taylor Series for f(x) = sin(x)center
    8·1 answer
  • A health club manager wants to determine whether the members would prefer a new sauna or a new steam room. The club surveys 50of
    13·1 answer
  • X^2-10x+27 in the form (x-a)^2+B​
    5·1 answer
  • What is the product (-6a^3b+2ab^2)(5a^2-2ab^2-b)
    6·2 answers
  • Graph y = -1/4 x + 6 in slope intercept form
    6·2 answers
  • 17.
    8·1 answer
  • Easy but not for me help me!!
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!