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
anastassius [24]
3 years ago
5

Help please! thanks! Find the length of AB A. 2.89 B. 33.13 C. 378.63 D. 377.19

Mathematics
1 answer:
Naddik [55]3 years ago
8 0
<h3>Answer:  29 miles (approximate)</h3>

======================================================

Explanation:

Segment AB is already given to be 19 miles long.

I'm assuming your teacher meant to ask about side BC, which is side 'a' since it's opposite angle A.

Use the law of cosines to find the missing side

a^2 = b^2 + c^2 - 2*b*c*cos(A)

a^2 = 12^2 + 19^2 - 2*12*19*cos(138)

a^2 = 843.874040417691

a = sqrt(843.874040417691)

a = 29.0495101579647

a = 29 when rounding to the nearest whole number

Side BC is roughly 29 miles long.

You might be interested in
Rewrite the equation in standard form by expanding it. <br> y= 3 (x+2)^2 - 4
morpeh [17]

Answer:

y = 3x^2 + 12x + 8

Step-by-step explanation:

To rewrite in standard from by expanding the equation using the distributive property.

y= 3 (x+2)^2 - 4

y = 3(x^2 + 4x + 4) - 4

y = 3x^2 + 12x + 12 - 4

y = 3x^2 + 12x + 8

4 0
3 years ago
Which decimal is the greatest?
tankabanditka [31]
3.2591 is the greatest
5 0
3 years ago
Read 2 more answers
Write a rule for the nth term of the sequence. Then find a20. Assume the first termis a₁. 86, 79, 72, 65…
hodyreva [135]

Answer:

an = a(n-1) - 7

Step-by-step explanation:

the second term is smaller than the first term 7.

a20 = a19 - 7

a19 = a18 - 7

=> a20 = (a18 - 7) - 7

Then you can accumalate until a1

-> a20 = a1 - 19*7 = 86 - 19*7 = -47

5 0
2 years ago
What is the equation of the line that is parallel to the line x = -2 and passes through the point (-5, 4)?
Nastasia [14]

Answer:

The equation of the line that is parallel to the line x = -2 and passes through the point (-5, 4) is x=-5

Option A is correct.

Step-by-step explanation:

We need to find equation of the line that is parallel to the line x = -2 and passes through the point (-5, 4)

We need a line parallel to x=-2 or x+2=0 it should be of form x+k=0

We need to find k, by putting value of x=-5 as given in question the point(-5,4)

-5+k=0

k=5

So, the equation of line will be found by putting k=5:

x+k=0

x+5=0

x=-5

So, the equation of the line that is parallel to the line x = -2 and passes through the point (-5, 4) is x=-5

Option A is correct.

8 0
3 years ago
My question is 7/8*8/9
Tom [10]
7/8*8/9 = (7*8)/(8*9)
Since we have an 8 both above and below, we can erase it, and so the answer is 7/9
6 0
3 years ago
Other questions:
  • I want some help with this problem of simplification <br> l-58l
    5·1 answer
  • Formulate a system of equations that could be solved by multiplying one equation by 5 and then adding the two equations together
    7·1 answer
  • 3x with a 2 as an exponent +8x=35
    10·2 answers
  • Question C and can u explain a bit I have a test thanks will give brainiest
    12·1 answer
  • Plz help me quick.....................................................
    15·1 answer
  • The solutions of x^2= 16x-28
    12·2 answers
  • Select the correct answer.
    11·2 answers
  • How do you add numbers?<br> Please help i am 1st graders
    5·1 answer
  • What is the slope of the line below
    14·1 answer
  • The perimeter of the base of a square pyramid is 64 inches. The slant height of the pyramid is 9 inches. What is the surface are
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!