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Mazyrski [523]
3 years ago
15

(50)points 5 questions

Mathematics
2 answers:
Maslowich3 years ago
8 0
1st Question: 
the answer is 85 because the angle measure does not change even if you rotate the figure.
2nd Question:
The answer is A) reflection across y-axis and translation 7 units down 
3rd Question:
The first answer choice is correct because the figure increases/decreases in length on all side lengths and the angle measures stay the same.
Question 10: (on the test online)
The answer is 12*6 or 72 because 30 (a'b') / 5 (ab) is 6 giving you the scale factor for the dilation.
Question 11:
The answer is a dilation
Question 12: 
The answer is a dilation and a translation because you first increase the size of the figure then move it down and to the right.


Anastasy [175]3 years ago
7 0

Answer:

1st Question:  

the answer is 85 because the angle measure does not change even if you rotate the figure.

2nd Question:

The answer is A) reflection across y-axis and translation 7 units down

Step-by-step explanation:

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I WILL MARK BRAINLIEST!!!!!!!!!
Lubov Fominskaja [6]

Answer:

It is not

Step-by-step explanation:

It is not because this is an exponential function

y=x^2

1^2=1

2^2=4

3^2=9

4^2=16

7 0
3 years ago
HELP PLZ!!!i cant figure this out and dont worry about what else im typin it wont let me continue without having 20 word typed s
morpeh [17]

Answer:

The length is 42 inches and the width is 14 inches

Step-by-step explanation:

You know the width is 1/3 of the length, and the length is basically the longer side of a rectangle. The width is y-4, so multiply using distributive property to get 3y-12.

You now know that the 2y+6 is equal to 3y-12, so you add 12 to both sides using additive property of addition to get 2y+18=3y.

Then you subtract 2y from both sides to get the unit value of y.

Y is equal to 18.

Then you can plug 18 into the y's to get

2(18)+6 which is 36+6 = 42

18-4   = 14

There you go.

The length is the longer side which is 42 inches and the width is 14 inches

Hope this helps!

6 0
3 years ago
Find the coordinates of triangle ABC A(2,1) B(3,0) C(1,-2) after a dilation with a scale factor of 3
Bad White [126]

Answer:

Remember the key word”factor” which means to multiply. Multiple all those numbers by 3!

Step-by-step explanation:I’m going to do 2 of them and you can do the last one (2,1)x3= the dilation (6,3). (3,0)x 3 gives the dilation (9,0). (1,-2)x3 gives the dilation of (3,-6). See it’s very easy.

6 0
3 years ago
Find the value of x.
eduard

Answer:

∠43=1/2(62+x)

43×2=62+x

86-62=x

24=x

<u>-------------------------</u>

<u>hope it helps...</u>

<u>have a great day!!</u>

4 0
3 years ago
William invested $12,000 in a bank account that pays 9 percent simple interest. His friend invested the same amount at another b
yarga [219]
<h3>Answer: B) 1.0 year</h3>

===========================================================

Explanation:

We have these two functions

  • f(t) = 12(1.02)^(4t)
  • g(t) = 12(1.09)t

which represent the amounts for his friend and William in that order. Strangely your teacher mentions William first, but then swaps the order when listing the exponential function as the first. This might be slightly confusing.

The table of values is shown below. We have t represent the number of years and t starts at 0.5. It increments by 0.1

The f(t) and g(t) columns represent the outputs for those mentioned values of t. For example, if t = 0.5 years (aka 6 months) then f(t) = 12.48 and that indicates his friend has 12,480 dollars in the account.

I've added a fourth column labeled |f - g| which represents the absolute value of the difference of the f and g columns. If f = g, then f-g = 0. The goal is to see if we get 0 in this column or try to get as close as possible. This occurs when we get 0.09 when t = 1.0

So we don't exactly get f(t) and g(t) perfectly equal, but they get very close when t = 1.0

It turns out that the more accurate solution is roughly t = 0.9925 which is close enough. I used a graphing calculator to find this approximate solution.

It takes about a year for the two accounts to have the same approximate amount of money.

4 0
3 years ago
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