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Sedbober [7]
3 years ago
11

What is a dilation ? (Choose 2 answers.)

Mathematics
2 answers:
vampirchik [111]3 years ago
8 0

Answer:

ask siri

Step-by-step explanation:

Alex777 [14]3 years ago
8 0
A dilation is a transformation that changes the size of a figure. It requires a center point and a scale factor , k . The value of k determines whether the dilation is an enlargement or a reduction. If |k|>1 , the dilation is an enlargement. ... The center of a dilation is always its own image.
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Jonathan has a bag that co rains exactly one red marble (r), one yellow marble (y) and one green marble (g). He chooses a marble
liraira [26]

Answer: The first outcome shall be 0.33 or 33%.

The second outcome would be 0.5 or 50%

Step-by-step explanation: The bag contains exactly one yellow, one red and one green marble. So when he draws the first marble the sample space shall be the total possible outcomes, which is three, since he has three (3) marbles altogether. When he draws the first time without looking, all three marbles have an equal probability of being picked which can be derived thus;

P(Red) = Number of required possibilities/Number of all possibilities

P(Red) = 1/3

P(Red) = 0.33

Note that there is only one marble of each color which means P(Yellow) and P(Green) is also 0.33 respectively.

After choosing the first marble, without replacing the first one he now chooses another marble. The sample size would have reduced to 2 (since one marble has been drawn). Hence, the outcome when he draw a second marble can be calculated as follows;

P(Red) = Number of required outcomes/Number of possible outcomes

P(Red) = 1/2

P(Red) = 0.5

6 0
3 years ago
A rectangular school yard has a perimeter of 114 meters and an area of 702 square meters. What are the dimensions of the school
Lostsunrise [7]
18 by 39.

Reason:
2x+2y=114 (perimeter)
XY=702 (area)
X=18
Y=39
6 0
2 years ago
Plz give me the awnser
Ivanshal [37]

Answer:

:[

Step-by-step explanation:

:[ I do not understand

5 0
2 years ago
Which best explains whether or not all isosceles triangles are similar? All isosceles triangles are similar. Two angles within e
Contact [7]
By Angle-Angle  simlilarity postulate :
If two angles of one triangle congruent to two angles of another, then triangles must be similar.
So, I think the answer is
<span>All isosceles triangles are not similar. The pair of congruent angles within one triangle is not necessarily congruent to the pair of congruent angles within the other triangle.

Because two base angles in  </span>isosceles triangle are congruent, but it could be a lot of isosceles triangles that have different  congruent base angles.
 For example,
45-45-90 is an isosceles triangle, and 30-30-120 is an isosceles triangles, but they do not have 2 congruent angles.
7 0
3 years ago
A person who wants to get in shape goes to a local gym that advertises 31 training sessions for $1179. Find the cost of 101 trai
lesya [120]

Answer:

$3841.26

Step-by-step explanation:

The first step is to find the price of a single session. 1179/31 is about $38.03. Multiplying this by 101, you get about $3841.26. Hope this helps!

6 0
2 years ago
Read 2 more answers
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