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4 years ago

A triangle has 3 sides that each equal 13cm what kind of triangle is it ?

1 answer:

5 0

There are a few types of triangles
scalene- all sides different sizes
isosceles- 2 sides equal and one different and
equilateral- all sides equal.

all sides in this are equal so it is equilateral

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There are 40 people at a party. The ratio of men to women is 3:2. How many men and women r there at the party?? Plz help me!!

IrinaK [193]

The answer is 24 men and 16 women

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3 years ago

Rectangle ABCD has coordinates A (2, -5), B (-1, -5) and C (-1, -1). What are the coordinates of point D?

Stels [109]

Answer:

D = (2,-1)

Step-by-step explanation:

Given Rectangle ABCD has coordinates A (2, -5), B (-1, -5) and C (-1, -1)

By graphing the given points, we can deduce the point D

See the attached figure.

The point D will be the intersection of the lines x = 2 and y = -1

So, the point D = (2,-1)

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3 years ago

Solve equation 6X+4(X+10)=0

hoa [83]

6x + 4(x + 10) = 0 |use distributive property: a(b + c) = ab + ac

6x + 4x + 40 = 0

10x + 40 = 0 |subtract 40 from both sides

10x = -40 |divide both sides by 10

x = -4

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4 years ago

Simplify the expression. 3[(15-332-4]

lesya692 [45]

Answer:

-963

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

PLEASE HELP! 50 POINTS! Consider the following set of sample data: (34, 32, 34, 32, 40, 37, 31, 31, 29, 27). Which of the follow

Georgia [21]

Answer:

(15.23,41.016)

Step-by-step explanation:

WE must determine the mean of the data set: Which is the sum of the set divided by the number in the set.
$= (21 + 24 + 25 + 32 + 35 + 31 + 29 + 28)/8 = 225/8 = 28.125$
We must also determine the standard deviation: Which is the square root of the variance and the variance is the sum of squares of the sample number minus the mean divided by the number if the set data:
$= ((21 - 28.125)^{2} + (24 - 28.125)^{2} +(25 - 28.125)^{2} + (32 - 28.125)^{2} + (35 - 28.125)^{2} + (31 - 28.125)^{2} + (29 - 28.125)^{2} (28 - 28.125)^{2}$
$= 148.877/8 = 18.6$
The 95% confidence interval is defined as: The mean ± 1.96*standard deviation divided by the sqaure root of the number of data in the set:
$= 28.125 + (1.96 *18.6)/(\sqrt{8} )$
$= 41.016$
$= 28.125 - (1.96 * 18.6)/(\sqrt{8}) = 15.23$
The confidence interval for this data set is (15.23,41.016)

5 0

2 years ago