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oksano4ka [1.4K]
3 years ago
5

Given X(4, -7). What are the coordinates of X" if

Mathematics
1 answer:
Vika [28.1K]3 years ago
6 0
<h3>Answer:</h3>

B. (0, 9)

<h3>Step-by-step explanation:</h3>

Reflection across x=a is represented by the transformation ...

... (x, y) ⇒(2a-x, y)

Reflection across y=b is represented by the transformation ...

... (x, y) ⇒ (x, 2b-y)

The double reflection, across x=2, y=1 will result in the transformation ...

... (x, y) ⇒ (2·2-x, y) ⇒ (4-x, 2·1-y) ⇒ (4-x, 2-y)

For (x, y) = X(4, -7), the transformed point is ...

... X''(4-4, 2-(-7)) = X''(0, 9)

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Answer:

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Step-by-step explanation:

I think it is 44.

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Two important ingredients for baking bread are yeast and flour. To make a loaf of bread of at most 30 servings, maintain a yeast
IceJOKER [234]

Answer:

If 0.25 oz of yeast is used, then 50oz of flour is needed.

It would require 0.5 oz of yeast for 90 oz the flour.

Step-by-step explanation:

We know that the proportion of yeast (y) and flour (f) is 1: 200 when a maximum of 30 servings of bread is made. This is:

\frac{y}{f} = \frac{1}{200}

So if we use 0.25 oz of yeast:

y = 0.25\\\\y = (f)\frac{1}{200}\\\\0.25 = (f)\frac{1}{200}\\\\0.25 * 200 = f\\\\f = 50\ oz

if 0.25 oz of yeast is used, then 50oz of flour is needed.

If you make 60 servings of bread with 90 oz. Of flour, then you should keep the following ratio:

\frac{y}{f} =\frac{1}{180}

So, if we use f = 90 0z of flour:

f = 90\ oz\\\\f = 180y\\\\90 = 180y\\\\y = \frac{90}{180}\\\\y = 0.5\ oz

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4 0
2 years ago
P - 12p + -2p - -19p + -13p = 9
USPshnik [31]

Answer:

p=\frac{9}{7}

Step-by-step explanation:

p - 12p + -2p - -19p + -13p = 9\\p(1-12+(-2)-(-19)+(-13)) = 9\\p(-11-2+19-13)=9\\p(7)=9\\p=\frac{9}{7}

Let's check the answer:

6 0
2 years ago
The diameter of Mercury is approximately 4.9×103 kilometers. The diameter of Saturn is approximately 1.2×105 kilometers. About h
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As soon as you see "How many times . . .", that usually tells you that finding the answer involves <em>division</em>.  (It certainly does in this one.)

(1.2 x 10⁵) / (4.9 x 10³)  =  

(1.2/4.9) x (10⁵⁻³)  =

0.245 x 10²  =  <em>24.5 times</em>

It looks like  <em>B</em>  is the closest choice.

8 0
3 years ago
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