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Fed [463]
3 years ago
9

Help plz! QUESTION 19

Mathematics
1 answer:
Lyrx [107]3 years ago
6 0

Answer: 1/4

Step-by-step explanation: Anything to a negative power is the same as the reciprocol to the absolute value of the power

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the audience in a theatre is made up of the following ratio: men:women:children 3:4:5. there are 348 people in the audience. cal
scoundrel [369]
There are 87 men 3 is the male ratio You add all the ratios 3+4+5=12 3/12×348 =87
7 0
3 years ago
Under a certain transformation T, AA'BC' is the image of AABC. The perimeter of AA'B'C' is twice the perimeter of ABC. What kind
Anika [276]

The dimensions of the image are twice the dimensions of the preimage,

which indicates that the transformation is a dilation.

  • The transformation <em>T</em> is; <u>a dilation transformation with a scale factor of 2, D₂</u>

Reasons:

The transformation applied to ΔABC = T

The image of ΔABC following the transformation, T = ΔA'B'C'

The perimeter of ΔA'B'C' = Twice the perimeter of ΔABC

Therefore, we have;

A'B' + B'C' + A'C' = 2 × (AB + BC + AC)

Which gives

A'B' + B'C' + A'C' = 2·AB + 2·BC + 2·AC

By similar triangles, we have the ratio of corresponding sides as follows;

\displaystyle \frac{AB}{A'B'}  = \frac{BC}{B'C'} = \mathbf{ \frac{AC}{A'C'}}

Which gives;

\displaystyle \frac{AB}{A'B'}  = \frac{AB}{2 \cdot AB} = \frac{1}{2}

A'B' = 2·AB

Therefore;

  • Triangle ΔA'B'C' is twice the dimension of triangle ΔABC, and <em>T</em> is <u>a dilation transformation with a scale factor of 2, D₂</u>

Learn more about dilation transformation here:

brainly.com/question/2458912

3 0
2 years ago
The ratio of juniors to seniors in history class is 4 to 5. How many seniors are in the class if there are 12 juniors in the cla
pashok25 [27]

Answer:

15

Step-by-step explanation:

4/5 4*3 is 12 5*3 is 15

8 0
3 years ago
Read 2 more answers
Hello, thanks for answering. Your a hero. :)
lyudmila [28]
They added it wrong. They added it like this:

100 + 700 + 800 + 560
When it shouldve been this:

100 + 70 + 80 + 56
They just added a place marker in all numbers below 100.
5 0
4 years ago
What is 2/5 times 1/3
Sergeu [11.5K]

Answer:

2/15

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
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