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SCORPION-xisa [38]
3 years ago
8

Which sequence of transformations confirms congruence by mapping shape I onto shape II? A. a reflection across the x-axis and th

en a translation 15 units left B. a 90° clockwise rotation about the origin and then a translation 25 units up C. a 90° counterclockwise rotation about the origin and then a translation 10 units left D. a 180° rotation about the origin and then a translation 10 units right
Mathematics
1 answer:
FromTheMoon [43]3 years ago
4 0

Answer:

The Answer is D.

Step-by-step explanation:

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A line has a slope of −5 and contains the point (−2, 4).
viva [34]
Plug them into point-slope form.

y - y1 = m(x - x1)

Where y1 is the y-value of the point, x1 is the x-value, and 'm' is the slope.

Plug in what we know:

y - 4 = -5(x + 2)

So one of our answers is C.

Now distribute -5 into the parenthesis:

y - 4 = -5x - 10

Add 4 to both sides:

y = -5x - 6

Add 5x to both sides:

5x + y = -6

So the other answer is B.
5 0
3 years ago
The results of a national survey showed that on average, adults sleep hours per night. Suppose that the standard deviation is ho
Leokris [45]

Answer:

Following are the solution to the given question:

Step-by-step explanation:

For point a:

6.5 - 4.9 = 2.4 \\\\\frac{2.4}{1.2} = 2 \\\\\sigma \ \ so \ k = 2

For point b:

\frac{3}{1.2}\ \  \sigma\  \ so \ k =\frac{3}{1.2} \ \ so\ \ 1- \frac{1}{k ^2} = 0.84

For point c:

Once again, we have k = 2 though with Chebyshev discrepancy of witness numbers in the same number of standard deviations off mean = at least 75 percent.

3 0
3 years ago
Turn y=-4/5x-7 into standard form
lesya [120]
4x+5y=-35 will be that in standard form
7 0
3 years ago
Al sumar su doble, su mitad y 15 se obtiene 99.<br>​
Ksju [112]

Answer:x = numero

2x= doble

x/2= mitad

sumamos todo : x+2x+x/2+15=99

7x/2= 99-15

7x= 84(2)

x=168/7

x=24

comprueba sumando 24+48+12+15=99 suerte!!!

Step-by-step explanation:

7 0
3 years ago
Anyone know the answer please teach me
Semenov [28]

Answer: Look at step by step

Step-by-step explanation:

(a) There are 119 stocks that increased in price out of 246 stocks so the probability of selecting a stock that is increased in price is 119/246 = 48.37%

(b) There are 112 stocks where it pays dividends so the probability so the probability of selecting a stock that pays dividends is 112/246 = 45.53%

(c) There are 49 stocks which satisfy the question so the probability is 49/246 = 19.92%

(e) There are 34 stocks which increase in price and pay dividends out of the 119 stocks that increase in price so the probability is 34/119 = 28.57%

(f) Using the same logic as (e), the probability is 85/134 = 63.43%

(g) From the requirements, we see that 49 stocks don't satisfy the requirements, so the probability is (246-49)/246 = 80.08%

7 0
2 years ago
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