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Sergio039 [100]
3 years ago
7

Select ALL the correct answers. Given that line AB is parallel to line DE, determine how triangle ABC and triangle EDC can be sh

own to be similar. Since CD ≅ CE and ∠BAC ≅ ∠DEC, the triangles are similar by the angle-side criterion. Since ∠ABC ≅ ∠EDC and AC ≅ BC, the triangles are similar by the angle-side criterion. Since ∠ABC ≅ ∠EDC and ∠BAC ≅ ∠DEC, the triangles are similar by the angle-angle criterion. Since ∠ABC ≅ ∠EDC and ∠ACB ≅ ∠ECD, the triangles are similar by the angle-angle criterion. Since ∠ACB ≅ ∠ECD and ∠BAC ≅ ∠DEC, the triangles are similar by the angle-angle criterion. Since ∠ABC ≅ ∠DEC and ∠BAC ≅ ∠EDC, the triangles are similar by the angle-angle criterion.
Mathematics
1 answer:
Evgen [1.6K]3 years ago
8 0

cheeseeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee

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Suppose y varies jointly as x and z. Find y when x=-9 and z=23, if y=117 when x=-3 and z=-11. Round your answer to the nearest h
Andrew [12]

Answer:

The value of y given the values of x and z in the question is -734.85

Step-by-step explanation:

This is a joint variation question.

First, we are made to know that y varies jointly as x and z.

The equation for this can be written as;

y = k * x * z

Where k is the constant of proportionality.

Let’s calculate k first.

117 = k * (-3) * (-11)

33k = 117

K = 117/33 = 3.55

Now, we proceed to get what y is when x = -9 and z = 23

Let’s plug these values into the initial equation written.

y = k * x * z

We use the value of k calculated above;

y = 3.55 * (-9) * (23) = -734.85

4 0
3 years ago
Read 2 more answers
9th grade math please help thanks <3
kari74 [83]

Step-by-step explanation:

8) 52

9) (135/2) or 67.5

10)(32/5) or 6.4

4 0
2 years ago
I have no idea how to do this
disa [49]

Answer:

36% of 125, 655 of 80, 82% of 50, and 170% of 30

Step-by-step explanation:

there you go

6 0
3 years ago
Read 2 more answers
What’s the answer please i don’t need work shown :)
Lady bird [3.3K]

Answer:

102

You didn't ask for work and I shall respect your wish

6 0
3 years ago
HURRY!!!!!!!!!!!
andrey2020 [161]

Answer:

2.5

Step-by-step explanation:

Conversion a mixed number 2 1/

2

to a improper fraction: 2 1/2 = 2 1/

2

= 2 · 2 + 1/

2

= 4 + 1/

2

= 5/

2

To find new numerator:

a) Multiply the whole number 2 by the denominator 2. Whole number 2 equally 2 * 2/

2

= 4/

2

b) Add the answer from previous step 4 to the numerator 1. New numerator is 4 + 1 = 5

c) Write a previous answer (new numerator 5) over the denominator 2.

Two and one half is five halfs

4 0
3 years ago
Read 2 more answers
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