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
NARA [144]
2 years ago
9

A triangle has the following measurements: B=79 degrees a=5ft

Mathematics
1 answer:
11Alexandr11 [23.1K]2 years ago
6 0
The law of cosines for this particular situation is b^2 = a^2 + c^2 - 2ac cosB.
Filling in what you know, you have b^2 = 25 + 49 - [2(5)(7)-.1908], which simplifies to b^2 = 74 - 69.8092 which gives you a b^2 value of 4.1908, but you have to take the square root of that so you get a side value for b of 2.05.
You might be interested in
Solve the equation √x+9 - 9 = -4 show each step of your solution process
Serjik [45]

Answer:

16

Step-by-step explanation:

Start by adding 9 to both sides, obtaining:  √(x + 9) = 5.

Square both sides, obtaining:   x + 9 = 25.

Subtract 9 from both sides:  x = 16

Note that √(16+9) - 9 = -4, as required.


3 0
3 years ago
Lines a and b are parallel.
Wittaler [7]

m and 125º are supplementary angles:

m + 125º = 180º

m = 180º <span>– 125º

</span>m = 5<span>5º  <</span>——<span>—    this is the answer.


I hope this helps. =)

</span>
6 0
3 years ago
Read 2 more answers
Venetta buys 2 pounds of pistachios and 3 pounds of almonds. The pistachios cost $4 more per pound than the almonds. She pays a
Alex

Answer: the answer is 2 and 5

Step-by-step explanation:

8 0
3 years ago
Write the base and power of each of the following exponent.<br>(-23/56)^6​
gayaneshka [121]

Answer:

-191.10

Step-by-step explanation:

When you divide 56/23 you get 2.4, 2.4 is negative.

Multiply 2.4 6 times

&

2.4^6.

You get -191.10.

I am probably wrong but I tried.

5 0
3 years ago
What is the equation of a line parallel to the x-axis that passes though the point (4,5)? What is the slope of this line
Svetlanka [38]

Slope of a line parallel to the x -axis is 0

y = 5 is the required equation of a line parallel to the x-axis that passes though the point (4,5)

<h3><u>Solution:</u></h3>

Given that  a line parallel to the x-axis that passes though the point (4,5)

To find: slope of this line and equation of a line

The x -axis is a horizontal line with the equation y = 0 There are an infinite number of lines that are parallel to the x -axis, y = 0

All horizontal lines have slope of 0

If lines are parallel then they have the same slope. The slope of a line parallel to the x -axis is 0

The equation of a straight line parallel to x-axis at a distance b from it is y = b

Here "b" is the y - co-ordinate value

Here given point is (4, 5) so b = 5

The required equation is y = 5

<h3><u>Method 2:</u></h3>

We know slope "m" = 0

Given point is (4, 5)

<em><u>The slope intercept form is given as:</u></em>

y = mx + b --- eqn 1

Where "m" is the slope of line and "b" is the y - intercept

Substituting m = 0 and (x, y) = (4, 5)

5 = 0(4) + b

b = 5

Substitute b = 5  and m = 0 in eqn 1

y = 0 + 5

y = 5 is the required equation of a line parallel to the x-axis that passes though the point (4,5)

6 0
3 years ago
Other questions:
  • Please help me answer the questions in the picture
    10·1 answer
  • How do you solve this problem provide the work (textbook problem)
    14·1 answer
  • I need help with number 4
    10·1 answer
  • What is the difference of the polynomials?<br><br>(8r6s3 – 9r5s4 + 3r4s5) – (2r4s5 – 5r3s6 – 4r5s4)
    8·2 answers
  • Help me on 8 and 9 plz
    11·1 answer
  • Please help it’s urgent !!
    10·1 answer
  • The process of completing the square will always work.<br>O True<br>O False<br>​
    15·1 answer
  • Graph the line y=−3x+b if it is known that the graph goes through point:<br> B(5, 2)
    7·1 answer
  • What is the value of c when 12.9x + c is equivalent to 4.3(3x + 1.5)
    13·1 answer
  • Need help with my pre calc homework
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!