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Katena32 [7]
3 years ago
11

5) A book is sold at $152.50 and a discount of 9% is given for students.

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

Answer:

$138.78

Step-by-step explanation:

152.50 decrease 9% =

152.50 × (1 - 9%) = 152.50 × (1 - 0.09) = 138.775

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A- CE=CD <br> B- CE = CA <br> C- BF=DF <br> D- DF=EF<br><br> please help!!
Oksana_A [137]

The perpendicular bisector theorem gives the statements that ensures

that \overleftrightarrow{FG} and \overleftrightarrow{AB} are perpendicular.

The two statements if true that guarantee  \overleftrightarrow{FG} is perpendicular to line \overleftrightarrow{AB} are;

  • \overline{CE} = \overline{CD}
  • \overline{DF} = \overline{EF}

Reasons:

The given diagram is the construction of the line \mathbf{\overleftrightarrow{FG}} perpendicular to line \mathbf{\overleftrightarrow{AB}}.

Required:

The two statements that guarantee that  \overleftrightarrow{FG} is perpendicular to line \overleftrightarrow{AB}.

Solution:

From the point <em>C</em> arcs <em>E</em> and <em>D</em> are drawn to cross line \overleftrightarrow{AB}, therefore;

\overline{CE} = \mathbf{\overline{CD}} arcs drawn from the same radius.

\overleftrightarrow{FG} is perpendicular to line \overleftrightarrow{AB}, given.

Therefore;

\overline{DF} = \overline{EF}  by perpendicular bisector theorem.

Learn more about the perpendicular bisector theorem here:

brainly.com/question/11357763

7 0
2 years ago
For every $10 Helen takes home, her employer withholds $3 for taxes and social security. Helen's gross pay each month is $1950.
goldfiish [28.3K]

$1,671.43 I believe is the answer

3 0
3 years ago
Find the area of the composite figure. (round to the nearest hundredth)
8090 [49]
We know that
[the area of composite figure]=[area of rectangle]+[area of a half circle]

[area of rectangle]=b*h
where
b=the base
h=the height 
[area of rectangle]=b*h--------> 4.1*8.6---------> 35.26 cm²

[area of a circle]=pi*r²
where 
r=the radius
r=4.1/2-------> 2.05 cm
the figure is a half circle
then 
[area of a half circle]=pi*r²/2--------> pi*2.05²/2--------> 6.60 cm²

[the area of composite figure]=35.26+6.60--------> 41.86 cm²

the answer is
41.86 cm² 

8 0
3 years ago
leroy is calculating the probability of rolling a regualr 6-sided die and flipping a coun. He wants to know the probability if r
fomenos

Answer:

To roll the 4 is 1/6 and landing heads twice is 1/4 and 1/6 x 1/4 and the probability of him doing that would be 0.04166666666% chance

Step-by-step explanation:

3 0
3 years ago
I need a Math EXPERT!!! Please help me in my math homework. WILL MARK AS BRAINLIST.
qwelly [4]

velocity is the slope (which can be calculated after finding the derivative)  →  given function f(x), velocity = f'(x).

acceleration is the slope of the velocity (which can be calculated after finding the derivative of the velocity)  →  given function f(x), acceleration is f''(x)

**************************************************************************************************

1a) A → B

f(x) = \frac{25}{3}x + 10

f'(x) = \frac{25}{3}

1b) B → C

f(x) = \frac{-15}{3}x + 50

f'(x) = \frac{-15}{3} = -5

1c) C → D

f(x) = 20

f'(x) = 0

Hope this helps!

5 0
3 years ago
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