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Fittoniya [83]
3 years ago
13

Which algebraic representation shows a reduction?

Mathematics
1 answer:
Grace [21]3 years ago
5 0

Answer:

D. (x, y) →(\frac{1}{2}x,\frac{1}{2}y)

Step-by-step explanation:

A dilation is a transformation which reproduces an image of the same shape as the original, but might be of a different size.

When the dilation produces a smaller image is called a reduction.

Mathematically, a reduction occurs whenever the scale factor is between 0 and 1.

Out of the options, the only one that has a scale factor less than one is:

(x, y) →(\frac{1}{2}x,\frac{1}{2}y)

Since the scale factor is 1/2 which is less than 1.

All other options are not reductions.

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Write an algebraic expression for 84 more than the product of 167 and b
Ket [755]

Answer:

  167b + 84

Step-by-step explanation:

Multiplication is indicated between a number and a variable by writing them next to each other. A "product" is the result of multiplication, so "the product of 167 and b" is written 167b.

If you want a value that is 84 more than that, you get it by adding 84.

  167b + 84

4 0
3 years ago
a 240 centimeter board is to be cut into two pieces so that the longer piece is twice as long as the shorter piece. find the len
amid [387]
You need two pieces and 1 has to be 2x longer than the other 
set x as the smaller piece (easier to always go with the smaller value as x)
the other piece is 2x (double in size)
your equations would be 3x=240>>> x= 60

so smaller piece/ x= 60
bigger piece/ 2x= 120
7 0
3 years ago
Read 2 more answers
1.4(0.5x+4.2y)−3.5(0.2x−1.5y)<br> simplify<br> lots of points
Vilka [71]

1,4(0,5x + 4,2y) - 3,5(0,2x - 1,5y)

1,4.0,5x + 1,4.4,2y - 3,5.0,2x + 3,5.1,5y

0,7x + 5,88y - 0,7x + 5,25y

0,7x - 0,7x + 5,88y + 5,25y

11,13y

7 0
3 years ago
Find the hcf of 24x3yz4,30x2y2z3 and 36 x3y2z3
dusya [7]

Answer:

8xyz

Step-by-step explanation:

multiply all numbers and alphabets

  1. 288xyz, 2.360xyz, 3.648xyz
  2. find HCF of numbers and after multiply by xyz
  3. 288={2×2×2×31}
  4. 360={2×2×2×3×3×5}
  5. 648={2×2×2×3×3×3×3}
  6. HCF={2×2×2}xyz
  7. 8xyz
7 0
2 years ago
Suppose that a chemist is mixing two acid​ solutions, one of 50​% concentration and the other of 60​% concentration. Which of th
Flura [38]
Mixing the two concentrations would give a new concentration which is in between 50 - 60% .

D. 63% cannot be obtained
8 0
3 years ago
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