MATHEMATICS HIGH SCHOOL

Kyla applied rm ◦ T0,3 to triangle ABC. What mistakes did she make? Check all that apply.She applied the rotation to the triangle first.
She applied the reflection to the triangle first.
She changed the size of the triangle instead of just applying a translation.
She translated the triangle down instead of just applying a reflection.
She applied a rotation instead of a reflection

Answers

Answer 1
Answer:

Answer: she applied the reflection to the triangle first

&

she changed the size of the triangle instead of just applying a translation.

Step-by-step explanation:
Answer 2
Answer:

Answer:

B & C

Step-by-step explanation:

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A door lock requires 3 different letters to be pressed in the correct order. If each permutation can only be made from the letters ABC, how many different permutations can there be?

Answers

Answer:  6 different permutations .

Step-by-step explanation:

The permutation of n things taken r at a time is given by:-

^nP_r=(n!)/((n-r)!)

Given : A door lock requires 3 different letters to be pressed in the correct order.

If each permutation can only be made from the letters ABC, then the number of different permutations can there be is given by :-

^3P_3=(3!)/((3-3)!)=3!=3*2=6

Hence, there can be 6 different permutations .
ABC ACB BAC BCA CBA CAB
total:6

An equation is shown below:5(2x - 8) + 15 = -15

Write the steps you will use to solve the equation and explain each step.

Answers

The first step would be to multiply the parenthesis, ex. 5(2x-8) is 10x-40. Once you simplify the equation, you continue to solve it like a regular equation. The equation should look like: 10x-40+15=-15
Me personally I substitute random numbers till I find the correct number, this takes longer but it works best for my understanding. X= 1. 10(1)-40+15=-15. 10-40 is -30, -30+15=-15. So, x=1

Original Equation.

5(2x - 8) + 15 = -15

First do what is in the parenthesis.

2 x 1 = 2

2 - 8 = -6

5(-6) + 15 = -15

Multiply 5 x -6 to get -30

-30 + 15 = -15

add 15 + -30 to get -15

-15

x = 1

Hope This Helps!

Can I get Brainliest?

A, B & C form a triangle where ∠ BAC = 90°. AB = 13.5 mm and CA = 3.2 mm. Find the length of BC, giving your answer rounded to 1 DP.

Answers

Answer:

13.9

Step-by-step explanation:

Use Pythagorean Theorem:

Both of the lengths given are the legs,

13.5^2 + 3.2^2 = c^2

182.25 + 10.24 = c^2

192.49 = c^2

13.87 = c

PLEASE HELP MEEE WITH THIS QUESTION :>

Answers

The answer to the question is B.

32 is 40 percent of what number

Answers

0.4x = 32
Solve for x
x = 32/0.4
x = 80

Sum of the angles of a polygon with 10 sides is -------​

Answers

Answer:

1440°

Step-by-step explanation:

Each exterior angle of a 10 sided regular polygon =360/10=36°  

Each interior angle = 180°-36° =144°.  

Sum of all interior angles = 144°×10. = 1440°.
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