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natali 33 [55]
4 years ago
11

Sarah has completed the first few steps for constructing the inscribed circle for triangle ABC. She started by constructing the

angle bisectors for angles A and C. This gives her the incenter (point D). What is the next step?
A) Construct the angle bisector for angle B.
B) Construct a circle with center D that passes through point B.
C) Construct the perpendicular bisector of one side of the triangle.
D) Construct the altitude from the incenter to a side of the triangle and label the intersection point.

Mathematics
2 answers:
mote1985 [20]4 years ago
8 0
Choice A. You want all three angle bisectors
frez [133]4 years ago
7 0

Answer:

The next step is to construct the altitude from the incentre  to a side of triangle and label the intersection point

Step-by-step explanation:

To construct the inscribed circle we have several steps of construction

Step 1: First step is to construct the incenter with the help of angle bisectors of two base vertices.

Step 2: After incenter, draw a line perpendicular to one side of triangle that passes through incenter and the label the point of intersection.

This is very important step because after labelling measure the radius(same as the distance between the incenter and labelled point) and draw the circle.

Hence, after incenter The next step is to construct the altitude from the incentre  to a side of triangle and label the intersection point.

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The graph of a quadratic function is called a
suter [353]

Answer:

PARABOLA

Step-by-step explanation:

The graph of a quadratic function is a PARABOLA.

5 0
3 years ago
A survey was conducted that asked 1004 people how many books they had read in the past year. Results indicated that x overbarequ
melisa1 [442]

Answer:

Step-by-step explanation:

Given that a survey was conducted that asked 1004 people how many books they had read in the past year.

Results are:

x bar =12.5

s = 16.6

n = 1004

Std error of sample = \frac{s}{\sqrt{n-1} } =\frac{16.6}{\sqrt{1003} }\\=0.524152\\=0.524

Since population std dev is not known t critical value can be used for confidence interval.

df = 1004-1 =1003

t critical = 1.96

Margin of error = 1.96(std error) =1.027

Confidence interval lower bound = 12.5-1.027 = 11.473

Upper bound = 12.5+1.027 = 13.527

6 0
3 years ago
A cube made of an unknown material has a height of 9 cm. The mass of this cube is 3.645 grams. What is the density of this cube?
ehidna [41]

Answer:

density =  \frac{mass}{volume}

mass = 3.645 g

volume = 9×9×9

= 729 cm³

density = 3.645/729

= 0.005 gcm^-3

Step-by-step explanation:

the volume is 729 cm³ cause the given height is 9cm and it is a cube. cube has equal sides so their lengths are the same.

volume = length × height × width

8 0
3 years ago
The frequency table shows the students' scores on a recent math test.what percentage of the students scored at least 81 on the t
Irina18 [472]

Answer:

54%

Step-by-step explanation:

total students are 50

20+7 scored at least 81 = 27

27/50=54%

8 0
3 years ago
Read 2 more answers
The base of a right pyramid is a regular hexagon with sides of length 12 m. The altitude is 6 m. Find the total surface area of
Eva8 [605]

Answer:

806.12 m

Step-by-step explanation:

<u>Step 1: Write the data</u>

<em>Side (s) = 12</em>

<em>Altitude (h) = 6</em>

<u>Step 2: Write the formula for surface area of right hexagonal pyramid</u>

<em>Area = 3√3/2*s² + 3*s*√(h²+3s²/4)</em>

<u>Step 3: Substitute values of 's' and 'h'</u>

<em>Area = 3√3/2*(12)² + 3*(12)*√[6²+3(12)²/4]</em>

Area = 806.12 m

Therefore, the total surface area of the pyramid is 806.12 m.

!!

4 0
3 years ago
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