Triangles similar to the same triangle are similar to each other. true false

Answers

Answer 1

Answer: True. Triangles similar to the same triangle are similar, otherwise they wouldn't be similar to the same triangle.

Answer 2

Answer: true ....................................

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2 (5 + y) = 8
What does Y =

Answers

Answer:

Step-by-step explanation:

2(5 + y) = 18

10 + y = 18

Bringing like terms on one side

Y = 18 - 10 = 8

If f(1)=3 and f(n)=-2f(n-1)+ 1, then f(5)=

Answers

Our function is $f(n)=-2f(n-1)+1$ .
We want to find f(5).
Let's substitute 5 for n.
f(5) = -2f(5-1) + 1
f(5) = -2f(4) + 1
We need to know f(4).
f(4) = -2f(4-1) + 1
f(4) = -2f(3) + 1
We need to know f(3).
f(3) = -2f(3-1) + 1
f(3) = -2f(2) + 1
We need to know f(2).
f(2) = -2f(2-1) + 1
f(2) = -2f(1) + 1
We know that f(1) = 3
f(2) = -2(3) + 1
f(2) = -6 + 1
f(2) = -5
Now we can use f(2) = -5 to find f(3)...
f(3) = -2(-5) + 1
f(3) = 10 + 1
f(3) = 11
Now we can use f(3) = 11 to find f(4)...
f(4) = -2(11) + 1
f(4) = -22 + 1
f(4) = -21
Now we can use f(4) = -21 t find f(5)!
f(5) = -2(-21) + 1
f(5) = 42 + 1
f(5) = 43

$f(1)=3\ and\ f(n)=-2f(n-1)+1\nf(2)=-2f(2-1)+1=-2f(1)+1=-2(3)+1=-6+1=\boxed{-5}\nf(3)=-2f(3-1)+1=-2f(2)+1=-2\boxed{(-5)}+1=10+1=\boxed{11}\nf(4)=-2f(4-1)+1=-2f(3)+1=-2\fbox{11}+1=-22+1=\fbox{-21}\nf(5)=-2f(5-1)+1=-2f(4)+1=-2\fbox{(-21)}+1=42+1=\boxed{\boxed{43}}$

Max worked 6.23 hours on Monday, 7.45 hours on Tuesday, 8.3 hours on Wednesday, 8 hours on Thursday, and 5.21 hours on Friday. What is the total number of hours that Max worked?

Answers

this is just simple addition

total = 6.23+7.45+8.3+8+5.21 = 35.19 hours

This problem is only asking for the total number of hours he worked. So to begin, as this is an addition problem, you would take the numbers and put them in a sequence like the one below:

6.23 + 7.45 + 8.3 + 8 + 5.21

Then you would add the numbers together, remembering the decimals out of 100, and the total sum would be your answer. Answer: 35.19 hours in total. Hope this helped you :)!

Find x and y please help

Answers

2x° and x° on the straight angle form a 180°
2x + x = 180
3x = 180
x = 60
The x is 60°
2x° and 2 y on the straight angle is 180°
since you know 2x is 120°
180 - 120 = 60
There is 2 y, so you divide 60 by 2
60 ÷ 2 = 30
The y is 30°

5(2x-3)=155 solve for x

Answers

5(2x-3)=155
10x-15=155(solve/multiply 5 by the numbers/variables in the parentheses first)
10x=170(add 15 to each side)
Divide 170 by 10x
170÷10x=17
x=17

5(2x - 3) = 155
10x - 15 = 155
10x = 155 + 15
10x = 170
x = 170/10
x = 17

At a quiz competition for every question team A answered correctly team B answered 2 questions correctly. The ratio of the number of questions team A answered correctly to the number of questions team B answered correctly is ___ 1 to1 2 to 1 1to2 2to2

Answers

Answer:

1 to 2

Step-by-step explanation:

If A answers 1 question, B will answer 2 questions, making the ratio 1 to 2

Answer:

The answer is 1 to 2 i did the quiz on flvs

Step-by-step explanation:

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