The interior angles of a triangle have measures 100°, (4y+25)°, and (3y+20)°.

What is the value of y?



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y =

Answer:

Part A:

The sequence of transformation that maps triangle DEF to triangle GHI are;

1) A reflection across the y-axis (x, y) →(-x, y) and

2) A translation 6 units down, (-x, y - 6)

Part B:

1) Yes

2) The points of the triangle GHI obtained from the mapping of triangle DEF using the given transformation are corresponding therefore, the mapping proves that the two triangles are congruent

Step-by-step explanation:

Part A:

The given coordinates of the vertices of triangle DEF are;

F(-1, 5), D(-5, 2), and E(-3, 1)

The given coordinates of the vertices of triangle IHG are;

I(1, -1), H(3, -5), and G(5, -4)

Therefore, the transformation that maps ΔDEF to ΔGHI are

1) A reflection across the y-axis (x, y) →(-x, y) and

2) A translation 6 units down, (-x, y - 6)

Reflection of point F(-1, 5) across the y-axis gives → (1, 5)

Followed by a translation 6 units down gives;

(1, 5) →T(y - 6) → I(1, -1)

Reflection of point D(-5, 2) across the y-axis gives → (5, 2)

Followed by a translation 6 units down gives;

(5, 2) →T(y - 6) → G(5, -4)

Reflection of point E(-3, 1) across the y-axis gives → (3, 1)

Followed by a translation 6 units down gives;

(3, 1) →T(y - 6) → H(3, -5)

Part B:

1) Yes mapping triangle DEF onto triangle GHI proves that the two triangles are congruent

2) The points of the triangle GHI obtained from the mapping of triangle DEF are the same, therefore, the mapping proves that the two triangles are congruent

Answer:

A) 15x+9x

B) you have to graph

C)yes, all she wants to do is make 90 bucks she can totally do more if she wants

D) you can choose

Step-by-step explanation:

15*12 & 9*12

Answer: Hi there! your answer is A

Step-by-step explanation:

hope this helped smile and have a great day! stay positive!!! brainliest?

Answer:

(5/4-3/4)

divide both sides by -7 then line them up and solve the equation and delete one variable.

Answer:

The two column proof can be presented as follows;

1. [tex]\overline{AB}[/tex] ≅ [tex]\overline{CD}[/tex]      [tex]{}[/tex]               Given

2. [tex]\overline{AD}[/tex] ≅ [tex]\overline{CB}[/tex]      [tex]{}[/tex]              Given

3. [tex]\overline{BD}[/tex] ≅

4. ΔABD ≅ ΔBCD      [tex]{}[/tex]     SSS

Step-by-step explanation:

Given that we have;

Segment [tex]\overline{AB}[/tex] of triangle ΔABD being congruent to the corresponding segment [tex]\overline{CD}[/tex] of triangle ΔBCD and segment [tex]\overline{AD}[/tex] of triangle ΔABD being congruent to the corresponding segment [tex]\overline{CB}[/tex] of triangle ΔBCD, and that the common segment [tex]\overline{BD}[/tex] of both triangles are congruent by reflexive property, we have that ΔABD is congruent to ΔBCD by the Side-Side-Side (SSS) rule of congruency.

Answer:

v=94

Step-by-step explanation:

v-84=10

v-84+84=10+84

v=94

Answer:

a is positive and b is negative

Step-by-step explanation:

a is the slope, which is positive

b is the y intercept, where x = 0 and that is negative.

Answer:

1\6y^8 (second one)

Step-by-step explanation:

Answer:

1162.5 words

Step-by-step explanation:

6m = 155 words

45m = [tex]\frac{45}{6}[/tex] × 155 words

        = 1162.5 words

Answer:

Step-by-step explanation:

If:

155 words =  6 minutes :

Then:

1  minute  = 155/6  = 25.8   words

45 minutes is:

45 × 25.8 = 1,162.5

Answer:

That happens to me to !

Step-by-step explanation:

Answer:

Download an adblocker

Step-by-step explanation:

I recommend uBlock Origin.

Answer:

3.85inches

Step-by-step explanation:

7*0.55 or 3.85 inches

Hope this helps :D

Merry Christmas!

Answer:

3.85inches

Step-by-step explanation:

7*0.55 or 3.85 inches

Hope this helps ;D

Answer: i believe that it is 49 hits

Comment:

and believe me sis i feel ya i'm in 8th grade and fell behind tryna help other people because i don't want others to feel what i felt.

GOOD LUCK!

Answer:

Mia's score is 10

Step-by-step explanation:

Mia and Evette played a game in which they scored 10 points for each correct answer and lost 20 points for an incorrect answer. Mia answered 7 questions correctly and 3 questions incorrectly. What was Mia's overall score? *

We are told that:

Correct points = 10 per answer

Incorrect points = 20 per answer

Mia answered 7 questions correctly and 3 questions incorrectly.

Hence:

7 (10) + 3(20)

= 70 points - 60 points

= 10 points

Mia's score is 10

Answer:

61

Step-by-step explanation:

a triangles angles equal 180 so 180-10-19-90 = 61

Answer:

-9

Step-by-step explanation:

Since the opposite angles of both sides are congruent we know that the sides must be congruent also. Therefore, to solve for x we can set them equal to each other.

So the equation will be x+19=10, to solve we must isolate the variable.

First, subtract 19 from both sides

x+19-19=10-19

Then, simplify

x=-9

Answer:

500

Step-by-step explanation:

Answer:

The answer is p=37.16 (6 is repeating) - 4.16m (6 is repeating) please let me know if I am incorrect.

Step-by-step explanation:

Isolate the variable by dividing each side by factors that don't contain the variable.

Answer:

2√6

Step-by-step explanation:

√24

√24 can be split into √8 and √3 because 8x3=24

√8 can be split into √4 and √2, and √4 equals 2.

√3 times √2 is √6

2√6

Answer:

c^2 = 9^2 + 12^2.

C = 15 Ft. (Rt. triangle).

Possible values: 9, 12, 15Ft.

The 9 and 12 Feet lengths form Isosceles triangles.

Hope this helps, have a wonderful day/night, and stay safe!

Answer: OMG that is sad why did you hide the the cheating tabs

Step-by-step explanation:

Answer:

Girl why did u cheat in the first place???

Step-by-step explanation:

Cheating is not going to get u into college or get you a scholorship. Its just a road to lies and people not trusting u. You should take this moment and reflect. Also, STUDY

sorry that happened but tbh, if u cheated then u kinda deserved that

NOT BEING MEAN

have a great day and LEARN

Answer: See explanation

Step-by-step explanation:

a. Determine the unit rate for the number of laps she can run per minute.

This will be calculated as the number of minutes used divided by the number of laps which will be:

= 25 / 10

= 2.5 minutes per lap.

b. Find the constant of proportionality for this situation.

We will use the formula y = kx

where y = 25, x = 10, k = constant of proportionality.

Therefore, y = kx

25 = 10k

k = 25/10

k = 2.5

The constant of proportionality is 2.5

Answer:

x=1

y=0

Step-by-step explanation:

(x-1)=-2x+2

3x-1=2

3x=3

x=1

-2(1)+2

-2+2=0

Answer:

x =1 y=0

-2x +2= x-1  (subtract 2 from both sides)

-2x= x-3 (subtract x from both sides)

-3x= -3 (divide each side by -3)

x=1

plug it in

y= (1) -1

y=0

Answer:

c = 12ft

Step-by-step explanation:

[tex]A^{2}[/tex] + [tex]B^{2}[/tex] = [tex]C^{2}[/tex]

[tex]7.2^{2}[/tex] + [tex]9.6^{2}[/tex] = 144

[tex]\sqrt{144}[/tex] = 12

Answer:

c

Step-by-step explanation:

edge 2020

Answer:

C. the phase shift

Step-by-step explanation:

edge 2020

Answer:

x=15

Step-by-step explanation:

Answer: x = 15

Step-by-step explanation:

Answer:

y = 1/8x + 25/8

Step-by-step explanation:

Answer:

0.19512195122

Step-by-step explanation:

Answer:

130

Step-by-step explanation:

1/5x=50-24  subtract 24 to both sides

1/5x=26   multiply 5 on both sides

x=130  multiply 5 to both sides