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Alex
3 years ago
8

25 POINTS 2 QUESTIONS!!! HELP PLEASE AND THANK YOU

Mathematics
1 answer:
Alexandra [31]3 years ago
7 0

1. c

2. c again hope this helps and plz mark as brainliest


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I'M OFFERING 20 POINTS-
Dafna11 [192]

Answer:

Third option is correct. Scale factor 3 ; enlargement.

Step-by-step explanation:

It is given that the figure A'B'C'D' is a dilation of figure ABCD.

We know that after dilation the corresponding sides of image and preimage are in the same proportion.

The image of AD is A'D'.

From the figure it is noticed that the A(-1,2), D(-1,-1), A'(-3,6) and D'(-3,-3).

Distance formula is

d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}

AD=\sqrt{(-1+1)^2+(-1-2)^2}=\sqrt{9}=3

A'D'=\sqrt{(-3+3)^2+(-3-6)^2}=\sqrt{81}=9

Scale factor is constant which represents the relation between image and preimage.

k=\frac{A'D'}{AD}

k=\frac{9}{3}

k=3

Therefore the scale factor is 3.

If k>0 it means enlargement and if k<0 it means reduction. Therefore third option is correct.

3 0
3 years ago
Read 2 more answers
The base of this prism is ___ triangle.
irga5000 [103]

Answer:

B

Step-by-step explanation:

B

8 0
2 years ago
Mrs. Gates has 22 slices of cake in her office. All teachers are on diets as part of their New Years resolutions and only want 1
Nimfa-mama [501]

Answer:

mrs.Gates can serve 66 teachers

Step-by-step explanation:

1. there are 22 slices of cake

2.each trachée want 1/3 slice

3. multiply 22 by 1/3 or 3

4. the answer is 66

6 0
2 years ago
The speed of an airplane is 885 km per hour. Find the distance covered by the airplane in 3 hours and 20 minutes. Also, express
torisob [31]

Answer:

2.95\cdot 10^3\:\mathrm{km}

Step-by-step explanation:

Distance is given by D=st, where s represents speed or rate and t represents time.

What we're given:

  • speed of 885\:\mathrm{km/h}
  • time of 3.\overline{3} hours

Thus, the distance covered by the airplane is:

d=885\cdot 3.\overline{3}=2,950\:\mathrm{km}

In scientific notation:

2,950\:\mathrm{km}\implies\boxed{2.95\cdot 10^3\:\mathrm{km}}

4 0
2 years ago
Read 2 more answers
Which of the following represents a statistical question
Katena32 [7]
Note that all of these choices but the last have 1-number responses.  The last choice involves collecting data:  the ages of the concert attendees.  So only the last pertains to statistics.

4 0
3 years ago
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