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s2008m [1.1K]
3 years ago
10

Math help!!Who knows the answers to all 4? If you have snap I can sent you a clearer photo.

Mathematics
1 answer:
Citrus2011 [14]3 years ago
4 0

Answer:

13 is reflection over the X axis

Step-by-step explanation:

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Find CD if C(0,3) and D(4,7)
weeeeeb [17]
C(0,3) \\
x_1=0 \\
y_1=3 \\ \\
D(4,7) \\
x_2=4 \\
y_2=7 \\ \\
\overset{\underline{\ \ \ \ }}{CD} =\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}=\sqrt{(4-0)^2+(7-3)^2}= \\
=\sqrt{4^2+4^2}=\sqrt{16+16}=\sqrt{16 \times 2}=4\sqrt{2} \\ \\
\boxed{\overset{\underline{\ \ \ \ }}{CD} = 4\sqrt{2}}
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3 years ago
Find the equation of the line using the exact numbers
Anit [1.1K]

Answer:

y = -0.25x - 6

Step-by-step explanation:

You can either just read off the slope m = -0.25 and the intersection with the vertical n = -6 or you form a system of equations from points you choose on the graph. For example:

(0,-6);(4,-7)

The general equation for a line:

y = m*x + n

The two points on the graph form a system of two equations:

1. -6 = m*0 + n

2. -7 = m*4 + n

You can read off n right away fro equation 1:

n = -6

Plugging n into equation 2:

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3 0
2 years ago
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An angelfish was 1 1/2 inches long when it was bought. Now it is 2 1/3 inches long.
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A)

Earlier, The length of the angelfish  = 1 \frac{1}{2} inches

Now, the length of angelfish = 2 \frac{1}{3} inches

We have to determine the grown length of angelfish

=  2 \frac{1}{3} -  1 \frac{1}{2}

= \frac{7}{3}- \frac{3}{2}

LCM of '2' and '3' is '6',

= \frac{14-9}{6}

= \frac{5}{6} inch

Therefore, the angelfish has grown by \frac{5}{6} inch.

B)

We have to determine the increased length of angelfish in feet.

Since 1 inch = \frac{1}{12} foot

So, \frac{5}{6} inch = \frac{5}{6} \times \frac{1}{12} = \frac{5}{72}

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7 0
3 years ago
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Help show work step,<br> By step how to get the awnser
Archy [21]

Step-by-step explanation:

8 \frac{1}{3}  - 5 \frac{1}{2}  =  \frac{25}{3}  -  \frac{11}{2}  =  \frac{50}{6}  -  \frac{33}{6}  =  \frac{17}{6}  = 2 \frac{5}{6}

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2 years ago
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BlackZzzverrR [31]

The answer is x = 2 and y = 3

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2 years ago
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