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
IRISSAK [1]
3 years ago
8

Find the missing side or angle.

Mathematics
1 answer:
Nina [5.8K]3 years ago
8 0

Answer:

a=4.1

Step-by-step explanation:

The Law of Cosines is given as:

a^2=c^2+b^2-2cb\cos A.

Plugging in given values, we get:

a^2=4^2+2^2-2\cdot 4 \cdot 2\cos 78^{\circ},\\a^2=16+4-16\cos 78^{\circ},\\a^2\approx \sqrt{16.673},\\a\approx \fbox{$4.1$}.

You might be interested in
Hello there are 4 questions in this it will look like a lot but it is not and you don't have to answer all of it just look at th
alex41 [277]

Answer:

First one: x = 3, and y = 2

Second: 5

Third: Yes because he will have $37.50

Fourth: The numbers 2.5 and 3 will make it true

Step-by-step explanation:

1. 4(3) + 2(2) + 3 = 12 + 4 + 3 = 19

2. 4x + 2 = 22, 4x = 20, x = 5

3. 2.25y + 7.25z + 11.25, 2.25(2) + 7.25(3) + 11.25 = 4.5 + 21.75 + 11.25 = 37.5

He will get $37.50, which is enough.

4. The numbers 2.5 and 3 will make it true: 2(2.5) + 3 = 5 + 3 = 8, 2(3) + 3 = 6 + 3 = 9, the numbers below it won't make it true.

4 0
3 years ago
Find the length of the third side. If necessary, round to the nearest tenth. 6 10
Pavlova-9 [17]
If you round, it’ll be 7,0
6 0
2 years ago
This couch is $100.12 and I had $1,000 how much money do I have now
Zanzabum
1,000-100.12=899.88

you have $899.88

hope this helped
7 0
3 years ago
What is the equation of the line that passes through the point (-5,-2) and has a slope of -6/5
tatyana61 [14]

Answer:

The answer is

<h2>y =  -  \frac{6}{5} x - 8  \\</h2>

Step-by-step explanation:

To find an equation of a line in point slope form when given the slope and a point we use the formula

y -  y_1 = m(x -  x_1) \\

where

m is the slope

( x1 , y1) is the point

From the question the point is (-5,-2) and the slope is - 6/5

The equation of the line is

y + 2 =  -  \frac{6}{5} (x + 5) \\ y + 2  =  -  \frac{6}{5} x - 6 \\ y =  -  \frac{6}{5} x - 6 - 2

We have the final answer as

y =  -  \frac{6}{5} x - 8  \\

Hope this helps you

5 0
3 years ago
Is y=4x-1 proprtional
kozerog [31]
Do u mean Linear? if so it is
5 0
3 years ago
Other questions:
  • Miscate owns Cool Groove, a company that sells and installs automobile sound systems. Cool Grove charges $185 for each small sys
    7·1 answer
  • Select the answer that correctly orders the set of numbers from greatest to least.
    5·2 answers
  • Convert:<br>84 ounces =<br>pounds<br>ounces​
    7·2 answers
  • A person aiming at a target receives 10 points if their shot is within 1 inch of the target, 5 points if it is between 1 and 3 i
    15·1 answer
  • Succulent Citrus produces orange juice and orange concentrate. This year the company anticipates a demand of at least 13,000 qua
    8·1 answer
  • Find the real solutions
    12·2 answers
  • Help plz, thx urgent
    14·2 answers
  • What is the answer of 2/3-6/10
    15·2 answers
  • HELP ME! THIS IS A DESPERATE HOUR! NEEDED WITHIN 15 MINS!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
    9·1 answer
  • Serenity is moving and must rent a truck. There is an initial charge for the rental plus a fee per mile driven. The total cost o
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!