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ArbitrLikvidat [17]
3 years ago
13

How does a compass and straightedge help you make a triangle

Mathematics
2 answers:
trasher [3.6K]3 years ago
6 0

Answer:

A compass and straightedge allow for a more accurate rendition of a triangle, especially one needed to be specific measures

Step-by-step explanation:

soldier1979 [14.2K]3 years ago
4 0
A compass is straightedges allowed for it to be more accurate
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14. Find mMK please :)
MrRissso [65]

Answer:

Step-by-step explanation:

11) strategy:  since they tell us. indirectly,  that the length of  JK is the same as LM then we can set those two equal, solve for X  and then.. when we have X we can figure out the lenght of JK  and LM and then just divide that by 2 go get PK  ( :0 Player Killer ???  no , not that PK)    

solve JK and LM

3x + 23 =9x-19

42 = 6x

7 = x

now that we know x = 7 plug it into either equation to come up with the length of JK or LM .  I'll pick JK just b/c it was 1st

3(7) + 23 = JK

21+23 = JK

44 = JK

now take half of 1/2*JK= 22  that is PK    ( are you sure that 's not player killer?)

PK = 22

12) strategy: set the two arcs BG and GC equal and solve for X, then plug x into either equation and the multiply the answer by 2 to find arc AB

9x-20 = 5x + 28

4x = 48

X = 12

9(12) -20 = BG

88 = BG

2*88 + AB

176 = AB

13) done

14)  strategy: find the angle at L,  and that will also be the arc of MK

<em>copy and past the below</em> helpful trig functions into your computer

Use SOH CAH TOA to recall how the trig functions fit on a triangle

SOH: Sin(Ф)= Opp / Hyp

CAH: Cos(Ф)= Adj / Hyp

TOA: Tan(Ф) = Opp / Adj

<em>copy and past the above</em> :

use which ever trig function you want , we have all the sides of the triangle, I'll use CAH

Cos(Ф) = 9/15

Ф = arcCos(9/15)

Ф = 53.13010°

arc MK = 53.13010°

15)   strategy:  arc JK is just 2 times MK

2*MK = 106.26020°

arc MK = 106.26020°

16) find arc JPK   strategy:  JPK is just the remaining part of a full circle of 360 - MK  = 253.7397°

arc JPK = 253.7397°

7 0
2 years ago
Principal Lopez asked her 500 students to vote on the school's annual gift. 300 students voted to donate a telescope for the sci
Maksim231197 [3]

Using the percentage concept, it is found that 60% of the students voted to donate a telescope.

<h3>What is a percentage?</h3>

The percentage of an amount a over a total amount b is given by a multiplied by 100% and divided by b, that is:

P = \frac{a}{b} \times 100\%

In this problem:

  • The total amount is the number of students, which is of b = 500.
  • 300 voted to donate, hence a = 300.

The <em>percentage </em>is given by:

P = \frac{300}{500} \times 100\% = 60\%

60% of the students voted to donate a telescope.

More can be learned about the percentage concept at brainly.com/question/10491646

5 0
2 years ago
An item is regularly priced at $85. It is now priced at a discount of 60% off the regular price. What is the price now?
ivolga24 [154]

Answer:

34$

Step-by-step explanation:

plz make brainliest

5 0
3 years ago
Find all complex solutions of X^2-5X -5= 0
denis-greek [22]

ANSWER

x  =  \frac{ 5  -  3\sqrt{ 5} }{2}  \: or \: x  =  \frac{ 5 +3 \sqrt{ 5} }{2}

EXPLANATION

The given equation is

{x}^{2}  - 5x - 5 = 0

The solution is given by the formula

x  =  \frac{ - b \pm \sqrt{ {b}^{2}  - 4ac} }{2a}

where a=1, b=-5, c=-5

We substitute into the formula to get;

x  =  \frac{ -  - 5 \pm \sqrt{ {( - 5)}^{2}  - 4(1)( - 5)} }{2(1)}

We simplify to get,

x  =  \frac{ 5 \pm \sqrt{ 45} }{2}

The solutions are:

x  =  \frac{ 5  -  3\sqrt{ 5} }{2}  \: or \: x  =  \frac{ 5 +3 \sqrt{ 5} }{2}

The equation has no complex roots.

4 0
3 years ago
Read 2 more answers
A scuba diver is at -20 meters. He descends 10 meters per minute, m. Write and solve an inequality that represents how many minu
Tomtit [17]

Answer:

-170= -10m - 20

Step-by-step explanation:

-20 is the y intercept, so in the equation y=mx+b that would be the b. Because he is going down at 10 meters per minute, it means that the -10 would go into the x spot and the -170 is where he needs to get to. Hope this helped!

7 0
3 years ago
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