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
dexar [7]
2 years ago
11

PLS HELP THANK UUU!!!

Mathematics
1 answer:
Svetach [21]2 years ago
6 0

Answer:

47.45754235

31.46697634

Hey do you need to show your work for these? I found an answer key

Step-by-step explanation:

We need to use law of cosines

c²=a²+b²-2abcos(C)

let x= angle xzy

plugging in what we have the equation looks like

17²=22²+20²-2*22*20*cos(x)

289=484+400-880cos(x)

.676136364=cos(x)

x=47.45754235

b.)

The smallest angle should be opposite to the smallest side

Using the law of cosines again we get

9²=13²+17²-2*13*17*cos(x)

81=458-442cos(x)

.852941176=cos(x)

x=31.46697634

You might be interested in
What is 862,840 rounded to
aliya0001 [1]
862,840 is rounded to 900,000
3 0
2 years ago
What is the equation of a line that passes through the given point and is parallel to the given line. (-3, 2) and y = -4
Assoli18 [71]

Answer:

its A y = 3

Step-by-step explanation:

5 0
3 years ago
The surface area of this triangular pyramid, whose base and lateral faces are congruent equilateral triangles, is __ square inch
DedPeter [7]

Answer:

The surface area is equal to 390\ in^{2}

Step-by-step explanation:

The surface area of the triangular pyramid is equal to the area of its four triangular faces

so

In this problem

SA=4[\frac{1}{2}(b)(h)]

we have

b=15\ in

h=13\ in

substitute the values

SA=4[\frac{1}{2}(15)(13)]=390\ in^{2}

4 0
3 years ago
Read 2 more answers
Which of these represents categorical data?
Viktor [21]

Answer:

the answer is D) the most popular foods in the cafeteria

~batmans wife dun dun dun....

7 0
3 years ago
6 + −28 − x = -2<br> -------------<br> x
nexus9112 [7]
The answer is x=-20.
6+ -28 -x =-2
You first add 28 to each side=6+-x=26 then you minus 6 from each side=-x=20.
Then you divide 20 by -x resulting in x=-20
3 0
3 years ago
Read 2 more answers
Other questions:
  • The maximum captivity of the school auditorium has 420 people right and i n e q u a l i t y for the situation tell what type of
    12·1 answer
  • The size of a television is given by the length of its diagonal. What is the size of a television that has a width of 24 inches
    9·1 answer
  • Determine if the statement is always, sometimes or never true.
    8·1 answer
  • How do I solve this problem?
    14·1 answer
  • I need help with numbers 1 and 2
    8·1 answer
  • Leanne earned $400 and $550 in interest the last 2 years. How much interest must she earn this year so that her average earnings
    13·1 answer
  • Suppose f(x) = 2x + 3. Find f(-.5).
    11·1 answer
  • PLZ ANSWER ASAP ONLY IF YOU ARE CORRECT!!!
    11·1 answer
  • What is 10 to the fourth power?
    12·2 answers
  • What is the inverse of p&gt;q
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!