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Amiraneli [1.4K]
2 years ago
9

Find the distance across the lake. Assume the triangles are similar.

Mathematics
2 answers:
muminat2 years ago
7 0

Answer:

a

Step-by-step explanation:

grin007 [14]2 years ago
5 0

Answer:

A.   L = 240 m

Step-by-step explanation:

<u>use similar triangle</u>

L / 60 = 80 / 20

L = (80 * 60) / 20

L = 240 m

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In circle M shown, chords GH and EF intersect at K such that EK  5 and FK  6 . If GK  3 , then which of the following is the
myrzilka [38]

The length of the GH segment is 13  

Step-by-step explanation:

For solving this problem we need to remember some of the circle corollaries-

When two-chord intersects each other, the product of the chord segments are equal

The above corollary can be easily understood by looking at a diagram attached below-

In the figure, EF and GH are two chords intersecting at K

Thus, EK*KF= GK*KH

Values of the EK, KF, GK are given as 5, 6 and 3 respectively

Substituting the values we get

5*6=3*KH

KH= 10

We know that GH= GK+KH

Thus GH= 3+10= 13

6 0
2 years ago
A sampling interval of 10 was used to select a sample from a population of 5,000. how many elements are to be in the sample? a.
attashe74 [19]
 The answer to this either a or c
5 0
2 years ago
The equation 9+12m=6+15(m-1) models the following situation: Movie-rental company A charges a sign-up fee of $9 plus $12 per mon
Ganezh [65]

Answer:

3m = 18

Step-by-step explanation:

9 + 12m = 6 + 15(m - 1)

9 + 12m = 6 + 15m - 15

3m = 18

6 0
2 years ago
Read 2 more answers
Select all the properties that are used below to solve 7y − 15 = −29. 7y – 15 + 15 = –29 + 15 7y = –14 7y7 = –147 y = –2 A. Iden
lukranit [14]

B.addition property of multiplication

D.inverse property of multiplication

E.commutative property of addition

3 0
2 years ago
Use a calculator to find the values of the inverse trigonometric functions. Round to the nearest degree. sin–1 = __° tan–1(4) =_
elena-s [515]

Solution:

As 360°= 2 π Radian

1 Radian =\frac{180 degree}{\pi }  

1. Sin(-1)= Sin (\frac{-180 degree}{\pi } )

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2.Tan^{-1}4=Tan(\frac{720}{\pi }})

=Tan^{-1} (229°54'32")

=75.963757 Degrees

3. Cos^{-1}(0.1)=Cos^{-1}(\frac{18}{\pi})=Cos^{-1}(\frac{63}{11})=

= Cos^{-1}(5°43'38")

= 84.26083 Degrees


6 0
2 years ago
Read 2 more answers
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