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klemol [59]
3 years ago
13

Help on this please??

Mathematics
1 answer:
Anuta_ua [19.1K]3 years ago
3 0

Answer:

23

Step-by-step explanation:

Its half of TU(46).

Hope it helps!

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How do you write 6.4 × 10^1 in standard form?
S_A_V [24]

Answer:

64

Step-by-step explanation:

6.4 * 10^1

is the same as:

6.4 * 10

= 64

7 0
3 years ago
I need some help on this homework pls
Damm [24]
25 students are boys and 18 students are girls
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3 years ago
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Find the area of the shaded portion in the circle.
Anastasy [175]
See the attached picture to better understand the problem

we know that
<span>the area of the shaded portion in the circle=area 1+area 2

step 1
find area 1
area 1=area of semi circle
area 1=pi*r</span>²/2
diameter=12 units
radius r=12/2----> 6 units

r=6 units
area 1=pi*6²/2----> 56.52 units²

step 2
find the area 2

area 2=area sector CADC-area triangle ACD

in the right triangle ABC
BC=3
AC=r-----> AC=6
AB=?
applying Pythagoras Theorem
AC²=AB²+BC²------> AB²=6²-3²-----> AB²=27----> AB=3√3 units
area triangle ACD=b*h/2
b=2*3√3---> 6√3 units
h=3 units
area triangle ACD=6√3*3/2----> 9√3 units²-----> 15.59 units²

find the angle ACB
tan ∠ACB=AB/BC-----> 3√3/3---> √3
∠ACB=arc tan (√3)-----> 60°

the central angle ACD=60*2-----> 120°


area of sector CADC=(120/360)*pi*r²----> (120/360)*pi*6²---> 37.68 units²
area 2=area sector CADC-area triangle ACD
area 2=37.68-15.59----> 22.09 units²

step 3
the area of the shaded portion in the circle=area 1+area 2
the area of the shaded portion in the circle= 56.52 +22.09----> 78.61 units²

the answer is
the area of the shaded portion is 78.61 units²

6 0
3 years ago
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Helppppppppppppppppmeeeeeeeeeeeeeeeeeeee
KonstantinChe [14]

Answer:

<em>hope </em><em>this </em><em>answer </em><em>helps </em><em>you </em><em>dear.</em><em>.</em><em>.</em><em>take </em><em>care!</em>

5 0
2 years ago
Freee 100 pooiinnttss!!!!! And
Elanso [62]

Answer:

wow

Step-by-step explanation:

thanks a lot for the points see you

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3 years ago
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