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erma4kov [3.2K]
3 years ago
6

Help Fast Which transformations could have occurred to map △ABC to △A"B"C"? a rotation and a dilation a rotation and a reflectio

n a reflection and a dilation a translation and a dilation
Mathematics
2 answers:
allochka39001 [22]3 years ago
8 0
It probably a rotation and a dilation
algol133 years ago
8 0

Answer:

its A

Step-by-step explanation:

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Tip is 20% how much would eaxh of the 4 people leave if the roatle cost without the tip was $18.00
salantis [7]
$18.00 if you move the decimal one place to the left 10% tip would be $1.80,
multiply $1.80 x 2 =  $3.60 which is 20% for the tip.
$18.00 + $3.60 = $21.60 divide by 4 people = $5.40 per person
3 0
3 years ago
Help needed desperately
Aneli [31]

Answer:

80° , 100°, 80°

Step-by-step explanation:

∠ 1 and ∠ 2 form a straight line and sum to 180° , then

2x + 40 + 2y + 40 = 180

2x + 2y + 80 = 180 ( subtract 80 from both sides )

2x + 2y = 100 → (1)

∠ 1 and ∠ 3 are vertical angles and are congruent , then

2x + 40 = x + 2y ( subtract x from both sides )

x + 40 = 2y ( subtract 40 from both sides )

x = 2y - 40 → (2)

Substitute x = 2y - 40 into (1)

2(2y - 40) + 2y = 100

4y - 80 + 2y = 100

6y - 80 = 100 ( add 80 to both sides )

6y = 180 ( divide both sides by 6 )

y = 30

Substitute y = 30 into (2)

x = 2(30) - 40 = 60 - 40 = 20

Thus x = 20 and y = 30

Then

∠ 1 = 2x + 40 = 2(20) + 40 = 40 + 40 = 80°

∠ 2 = 2y + 40 = 2(30) + 40 = 60 + 40 = 100°

∠3 = x + 2y = 20 + 2(30) = 20 + 60 = 80°

8 0
3 years ago
2. Given f(x) = 6(8 - x)+5
son4ous [18]

Answer:

a) Find the value of the function when x  = -2

b) we get f(-2)=65

Step-by-step explanation:

We are given the function f(x)=6(8-x)+5

a) What does the notation f(-2) mean?

The notation f(-2) means that we have to put x = -2 in the given function of f(x) and find the value of the function when x  = -2

b) What is the value of f(-2) ?

We need to find the value of f(-2)

f(x)=6(8-x)+5

Put x = -2

f(-2)=6(8-(-2))+5\\f(-2)=6(8+2)+5\\f(-2)=6(10)+5\\f(-2)=60+5\\f(-2)=65

So, we get f(-2)=65

5 0
3 years ago
Angles please Help,awnser these and get points
Lady_Fox [76]
3. Congruent, 30 degrees
4. 2x+30+50=180
80+2x=180
x=50
2x=100
5. 3x-13+58=90, so 3x+45=90
3x=45 x=15
3x-13=3(15)-13
=45-13
=32 degrees
4 0
3 years ago
What is the measure of angle B? Someone please help ASAP!!
Vedmedyk [2.9K]
The measure of angle B is 97°
6 0
4 years ago
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