Question

10. Find the perimeter of triangle CDE. Round to the nearest tenth.

(1 point)
90.0
18.0
14.3
10.5

Answer 1

how about a diagram?

Answer 2

can u help me with it and a few more problems

Answer 3

yes. you need to know how to fing the distance of a line. do you know the distance formula?

Answer 4

um no??

Answer 5

ok\[d=\sqrt{(x-x1)^{2}+(y-y1)^{2}}\]

Answer 6

it's from the Pythagorean theorem

Answer 7

ok can you please tell me the answer??

Answer 8

I would appreciate it soooo much!!

Answer 9

cd=5

Answer 10

ok

Answer 11

the next side is \[\sqrt{45}=\sqrt{9}\sqrt{5}=3\sqrt{5}\]

Answer 12

ok and the last side

Answer 13

the last one is \[\sqrt{40}=\sqrt{4}\sqrt{10}=2\sqrt{10}\]

so add them all up

Answer 14

and the answer will be ????.....

Answer 15

i did not pull out a calculator but it has to be 18

Answer 16

thank so much can you help me with a few more

Answer 17

yes but you must do some of the calculations

Answer 18

trust me i am doing almost all of the problems I just got stuck on a few

Answer 19

ok

Answer 20

17. The length of the hypotenuse of a 30-60-90 triangle is 28 m. Find the length of the side opposite the 30 angle. (1 point)
7 m
14 m
14 sqrt 3m
14 sqrt 2 m

Answer 21

14

Answer 22

14 m

Answer 23

r u sure

Answer 24

yes

Answer 25

19. Use the diagram to find sin X as a fraction in simplest form.

3/4 4/5 3/5 4/3

Answer 26

hello r u still there can u please answer it fast i rneed it now PLEASE I am /begging u

Answer 27

48/60=4/5

Answer 28

are you sure it is not 3/5

Answer 29

yes

Answer 30

22. Find the value of a in the diagram of the right triangle. Round to the nearest tenth.

Answer 31

21.6 24.2 5.0 12.3

Answer 32

hello r u still there can u please answer it fast i rneed it now PLEASE I am /begging u

Answer 33

hold on

Answer 34

24.2

Answer 35

thank u soo much

Answer 36

27. Zack is building a model sailboat. The mast will have two inches of height below the base of the main sail, as shown in the diagram below. He wants the base of the sail to have a length of 11 inches and angle s to measure 49.


a. Write an equation that can be used to find the length of the side of the triangular sail opposite angle s .
b. Find the length of the side of the triangle opposite angle s, to the nearest tenth.
c. What will be the height of the mast, to the nearest tenth?

Answer 37

can u please answer this on quickly 2. I would so appreciate it. this one and one more and thats it. U have helped me more than enough!

Answer 38

length=tan49*11
12.65
14.7

Answer 39

are the answers in abc order?

Answer 40

yes

Answer 41

ok last one and I owe u BIG time thank you so much!! :)

Answer 42

28. The City Commission wants to construct a new street that connects Main Street and North Boulevard, as shown in the diagram below.

a. What will be the length of the new street? Explain how you found this length.
b. The construction cost has been estimated at $140 per linear foot. Estimate the cost for constructing the street. Explain your method for finding the estimate.

Answer 43

a--use the Pythagorean theorem
9^2+4^2=81+16=97= of the length of the new street squared
so length of new street is sqrt 97

b--140* sqrt97

Answer 44

would b = 1378

Answer 45

yes