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2 years ago

Which point is the incenter of △DEF ?

Mathematics

2 answers:

stellarik [79]2 years ago

7 0

It is point G, because that is where the 3 angle bisectors meet.

charle [14.2K]2 years ago

4 0

Answer:- G is the point which is the incenter of Δ DEF.

Explanation:-

Incenter of a triangle is defined as a point occurred by the intersection of the internal angle bisectors of the three vertices of the triangle.

In the given picture ΔDEF has three angle bisectors ,bisecting vertices of triangle D,E and F and intersect at point G.

Thus point G is the incenter of Δ DEF.

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A survey was given to people who own a certain type of car. What percent of the people surveyed were completely satisfied with t

ad-work [718]

60% of the people from the survey are completely satisfied

4 0

2 years ago

A random sample of 60 mathematics majors spent an average of $200.00 for textbooks for a term, with a standard deviation of $22.

tangare [24]

Answer:

20 +/- $6.74

= ( $13.26, $26.74)

The 90% confidence interval for the difference in average amounts spent on textbooks (math majors - English majors) is ( $13.26, $26.74)

Step-by-step explanation:

Confidence interval can be defined as a range of values so defined that there is a specified probability that the value of a parameter lies within it.

The confidence interval of a statistical data can be written as.

x1-x2 +/- margin of error

x1-x2 +/- z(√(r1^2/n1 + r2^2/n2)

Given that;

Mean x1 = $200

x2 = $180

Standard deviation r1 = $22.50

r2 = $18.30

Number of samples n1 = 60

n2 = 40

Confidence interval = 90%

z(at 90% confidence) = 1.645

Substituting the values we have;

$200-$180 +/-1.645(√(22.5^2/60 +18.3^2/40)

$20 +/- 6.744449847374

$20 +/- $6.74

= ( $13.26, $26.74)

The 90% confidence interval for the difference in average amounts spent on textbooks (math majors - English majors) is ( $13.26, $26.74)

3 0

2 years ago

If y varies directly as x, and y is 16 when x is 4, when y= 24 what is the value of x?

sergejj [24]

Answer:

x = 6 possibly

Step-by-step explanation:

I am just an algebra student, but if I am correct I would appreciate a crown.

16/4 is 4, so i assumed that was the geometric pattern, so i divided 24 by 4 and got 6.

Hoped this helped.

6 0

3 years ago

As an estimation We are told 5 miles is 8 km convert 27. 5 miles to km

OverLord2011 [107]

Answer:

approx. 44 km

Step-by-step explanation:

We are given that :

5 miles ------> 8 km

we divide both sides by 5 to get the unit rate:

1 miles ------> 8/5 km

Therefore:

27.5 miles -----> 27.5 miles x (8/5) = 44 km

5 0

2 years ago

Change the fraction 5/2 to percent

kap26 [50]

[ Answer ]

$\boxed{250 \ Percent}$

[ Explanation ]

Change $\frac{5}{2}$ To Percent

-------------------------------------

$\frac{5}{2}$ Is The Same As 5 ÷ 2

Divide

5 ÷ 2 = 2.5

Convert Decimal To Percentage

2.5 · 100 = 250

Final Answer

250%

$\boxed{[ \ Eclipsed \ ]}$

4 0

3 years ago

Which point is the incenter of ​ △DEF ​ ?

Which point is the incenter of △DEF ?