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OLga [1]
2 years ago
6

Janie uses a reflecting tool to reflect Point B onto Point A. Which of the following statements are true about the line of refle

ction?
1. Reflection line is perpendicular to AB
2. Reflection line does not bisect AB.
3. Reflection line passes through the midpoint of BA.
4. Reflection line forms two equal angles with segment AB.
Mathematics
1 answer:
ExtremeBDS [4]2 years ago
8 0
According to the question's statement you can see we have to choose more than one true statements. So,
1. Reflection line is perpendicular to AB  ===>TRUE
2. Reflection line does not bisect AB.      ===> FALSE
3. Reflection line passes through the midpoint of BA. ====> TRUE
4. Reflection line forms two equal angles with segment AB. ====>TRUE
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A software store has put some of its inventory on sale. Games are marked down by 15%, and security programs are marked down by 1
Katyanochek1 [597]

Answer:

Option D. \$11.34

Step-by-step explanation:

Let

x -----> the original price of one game

y ----> the original price of one security programs

Remember that

100\%-15\%=85\%=85\100=0.85

100\%-18\%=82\%=82\100=0.82

The total pay with discount is

\$35.70+\$22.96=\$58.66

we have that

0.85(2x)=35.70\\1.70x=35.70\\x=\$21

0.82y=22.96\\y=\$28

Find the total pay without discount

2x+y=2(21)+28=\$70

The amount saved is the difference

\$70-\$58.66=\$11.34

5 0
2 years ago
Read 2 more answers
You are setting up a zip line in your yard. You map out your yard in a coordinate plane. An equation of the line representing th
Pachacha [2.7K]
Solving this problem needs the distance formula of point to a line.

The formula is:

distance = | a x + b y + c | / √  (a^2 + b^2)

 
So we are given the equation: y = 2 x + 4

Rewriting this would be: y – 2 x – 4 = 0 ->  a = -2, b = 1, c = -4

 We are also given the points:

(-4, 11) = (x, y)

 Plugging it in the distance formula at points (x, y):

distance = | -2 * -4 + 1 * 11 + -4 | / √ [(- 2)^2 + (1)^2]

= 15 / √ (5)

= 6.7

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4 0
2 years ago
PLEASE HELP!!!!!!
jek_recluse [69]
\bf \textit{Law of Cosines}\\ \quad \\
c^2 = {{ a}}^2+{{ b}}^2-(2{{ a}}{{ b}})cos(C)\implies 
c = \sqrt{{{ a}}^2+{{ b}}^2-(2{{ a}}{{ b}})cos(C)}\\\\
-----------------------------\\\\

\begin{cases}
a=12\\
b=10\\
D=90+50
\end{cases}\implies d = \sqrt{{{ 12}}^2+{{ 10}}^2-2(12)(10)cos(140^o)}
\\\\\\
d\approx \sqrt{427.851}\implies d\approx 20.684551
5 0
2 years ago
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A daffodil grows 0.05m every day. Plot the growth of the flower if the initial length of the daffodil is 0.8m and hence give the
Vanyuwa [196]

Answer:

1.2m

Step-by-step explanation:

You must first find out how much the daffodil grew over the 8 days:

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Then you must add how much it grew to the original height:

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Hope this helps you out! : )

8 0
2 years ago
Write 337,060 in expanded form using exponents
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3 x 10 to the sixth power
3 x 10 to the fifth power
7 x 10 to the fourth power
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I might be wrong though. If so, sorry!
4 0
2 years ago
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