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
aliina [53]
3 years ago
5

Help! Find the value of X and simplify completely.

Mathematics
2 answers:
Svetach [21]3 years ago
8 0

Answer:

x = 8√5

Step-by-step explanation:

In the figure attached, there are three right angle triangles.

So, by Pythagoras theorem,

y²+ 4² = z²

y² + 16 = z²------(1)

Similarly x² = 16² + y²--------(2)

and (16 + 4)² = x² + z²

20² = x² + z²-------(3)

Now we put the value of z² from equation 1 to equation 3

20² = x² + y² + 16

x² + y² = 400 - 16

x² + y² = 384

y² = 384 - x²------(4)

Now we put the value of y² from equation 4 to equation 2

x² = 16² + 384 - x²

2x² = 256 + 384

2x² = 640

x² = 320

x = 8√5

Therefore x = 8√5 will be the answer.

Gemiola [76]3 years ago
4 0

Answer:

x = 8√3

Step-by-step explanation:

y /4 = 16/y

y^2 = 64

y = 8

x^2 = 16^2 - 8^2

x^2  = 256 - 64

x^2 = 192

x = √192

x = √(64 * 3)

x = 8√3

You might be interested in
5yr is how many days
Karolina [17]
There are 1,826 days in 5 yr. In relation to the leap year, there are 1826.25 days in 5 yrs. That is because there are really 365.25 days in a year (making every four years a leap year). So, when you multiply 365.25 by 5, you get 1826.25. 
6 0
3 years ago
Read 2 more answers
The width of a rectangle is 2x ^2 +9x -7 and length is x^2 -9
lesantik [10]

Answer:

63 - 81x - 25x² + 9x³ + 2x⁴

Step-by-step explanation:

Multiply the two polynomials to arrive at your answer I guess, since this was not specific enough.

I am joyous to assist you anytime.

7 0
3 years ago
There are 60 players on a high school football team. The ratio of juniors and seniors to freshmen and sophmores on the team is 2
nata0808 [166]
You know that the ratio of J&S to F&So is 2:3. You need two numbers that have that same ratio to total 60 players.  When you multiply both numbers by 12, you have a ratio of 2:3 but the number of players is 24 to 36.  Thus, the total players is 60.  When looking at the ratio of Juniors to Seniors, the ratio remains 1:2, but must total 24 players.  Dividing the total players by 3, you can find where 1 part of the players equals 2 parts of the others.  Keeping that same ratio in mind, you are able to calculate that the ratio of Juniors to Seniors is 8:16 but when reduced, still remains a 1:2 ratio.
7 0
3 years ago
Read 2 more answers
PLEASE HELP!!!!!!!!​
marshall27 [118]

Answer:

D

Step-by-step explanation:

I took the quiz :)

4 0
3 years ago
PLZ HELP ITS BEING TIMED PLZ SOMEONE ANSWER!!!!!
Eduardwww [97]

Answer: First, you identify how many rises and runs the line is from each point on a graph (intersection). Then you take the y's and the x's and do y2-y1/x2-x1 to get the slope!

6 0
3 years ago
Other questions:
  • Mikel wants to hire a carpenter to remodel a bathroom.
    13·1 answer
  • Which of the following equations is of a parabola with a vertex at (0, 3)?
    10·2 answers
  • Ayee somebody help me on this plz real quick
    6·2 answers
  • Angelina has a collection of Nickles and dimes worth 4.65 . If she has 70 nickles and dimes , how many of each does she have ?
    7·2 answers
  • Soda is often sold in 20 ounce bottles. A pack of sugar (the kind they have at restaurants for your coffee or tea) typically con
    14·1 answer
  • write in slope intercept form an equation of the line that passes through the given points (-2,3) (2,7)​
    5·1 answer
  • Becka can make a bracelet in 2 minutes.
    10·1 answer
  • Cranberry juice is made with a 16:3:1 ratio of water:sugar:cranberries. How much water,
    14·2 answers
  • If we want to know if diagonals or sides are congruent we would use the
    12·1 answer
  • Which matrix equation represents the system of equations
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!