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Readme [11.4K]
3 years ago
13

What two simpler problem can you use to find 9×38?

Mathematics
1 answer:
elena55 [62]3 years ago
8 0
Just a shot in the dark: 9*30 and 9*8?
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(05.08A)Triangle ABC is transformed to similar triangle A′B′C′ below:
Romashka-Z-Leto [24]

Answer:

1st option is correct i.e., 1 over 2

Step-by-step explanation:

Given that Triangle ABC transformed to Triangle A'B'C'.

Coordinated of Triangle ABC are A(2,6) , B(2,4) and C(4,4)

Coordinated of Triangle A'B'C' are A'(1,3), B'(1,2) and C'(2,2)

Scale factor of Dilation is the no. of times coordinates of vertices of a figure increase or decrease.i.e.,

if A(a,b) ⇒ A'(c,d)

where, a.k=c & b.k=d then k is scale factor of dilation.

Value of k is same for all vertices.

For coordinates of A & A' ,we have 2.k=1\implies k=\frac{1}{2} \:\: and \:\: 6.k=3\implies k=\frac{1}{2}

For coordinates of B & B' ,we have 2.k=1\implies k=\frac{1}{2} \:\: and \:\: 4.k=2\implies k=\frac{1}{2}

For coordinates of C & C' ,we have 4.k=2\implies k=\frac{1}{2} \:\: and \:\: 4.k=2\implies k=\frac{1}{2}

Therefore, the scale factor of dilation is \:\frac{1}{2}\:  since in all cases k=\frac{1}{2}

1st option is correct i.e., 1 over 2

3 0
3 years ago
The expression 9n + 3 represents the perimeter (in meters) of the triangle. Write an expression in the simplest form that repres
AlexFokin [52]

Answer:

4n+2

Step-by-step explanation:

  1. add all sides =9n+3
  2. 3n+2+2n-1=9n+3
  3. add liketerms 5n+1=9n+3
  4. put liketerms together 9n-5n+3-1
  5. ans hence is 4n+2
5 0
3 years ago
the faster a vehicle is going, the further it will continue to travel after the brakes are applied. Which is the independent var
nevsk [136]
I believe that the answer is speed in this situation but I'm not 100% sure
3 0
3 years ago
Consider the characteristics of the graph. Which statement DOES NOT describe the data set?
serg [7]
A, the interquartile range is 10, does not fit.

The interquartile range is found by subtracting the upper quartile and the lower quartile; in a box-and-whisker plot these are the outer edges of the box.  In this case, they are 40 and 20; 40-20 = 20, not 10.
4 0
3 years ago
Read 2 more answers
What is the range of the following number sequence 1,2,3,4,5,6,7,8,9
Lelechka [254]

Answer:

8

Step-by-step explanation:

To find range, subtract the lowest number(1) from the highest number(9)

highest-lowest

9-1

8

So, the range is 8

Hope this helps! :)

5 0
3 years ago
Read 2 more answers
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