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3 years ago

Determine if the statement is always, sometimes or never true.

Mathematics

2 answers:

Reika [66]3 years ago

4 0

A always a euilateral triangle is a regular polygon

ankoles [38]3 years ago

4 0

Answer:

Equilateral triangle is always a regular polygon

Step-by-step explanation:

We have to tell an equilateral triangle is a regular polygon.

Regular polygon is a polygon which has all angles and all sides are equal.

Equilateral triangle is a triangle with all three angles equal to 60° and all three sides equal.

Hence equilateral triangle is always a regular polygon

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Three consecutive even numbers have a sum where one half of that sum is between 90 and 105. Write an inequality to find the the

viva [34]

90 < [( n + n + 2 + n + 4) / 2] < 105

90 < (3n + 6) / 2 < 105

3n + 6 > 180 and 3n + 6 < 210

n > 58 , n < 68

58 < n < 68 answer

6 0

3 years ago

For an acute angle θ, the equation sin (θ) = cos (7°)is true. What is the value of θ?

8_murik_8 [283]

Answer:

θ = 83°

Step-by-step explanation:

For acute angles, the sine of an angle is the cosine of its complement, and vice versa.

sin(θ) = cos(90° -θ) . . . . relation between sine and cosine

sin(θ) = cos(7°) . . . . . . . . given

90° -θ = 7° . . . . . . . . . matching arguments of cos( )

θ = 83° . . . . . . . . . add θ -7° to both sides

5 0

2 years ago

The district manager of four different restaurants wanted to investigate whether the four restaurants differed with respect to c

Alex_Xolod [135]

Answer:

Hello your question is incomplete attached below is the complete question

answer : There is not convincing statistical evidence to suggest that the proportion of customers who order dessert at each restaurant is not the same based on family classification. ( E )

Step-by-step explanation:

To arrive at this conclusion we will determine the Null and alternate hypothesis

H0 : Number that orders dessert is same based on family classification given

Ha : Number that orders dessert is not the same based on family classification given

from the question the p-value of Chi-square test is 0.092 > 0.05 hence we will fail to reject the null hypothesis. therefore we can conclude that

There is not convincing statistical evidence to suggest that the proportion of customers who order dessert at each restaurant is not the same based on family classification

5 0

3 years ago

350 at 5% interest for 4 years simple interest at the to the nearest cent

Scilla [17]

The answer is $4.40

mutiply 350 by 5% and get 17.5 then divide thag by 4 and you get 4.37 and you supposed to round it up which will be 4.40

3 0

3 years ago

Which of the following is an example of the additive identity? a +(-a) = 0 a+0=0 a+0= a

UNO [17]

Answer:

a+0= a

Step-by-step explanation:

we know that

The additive identity property says that if you add a real number to zero or add zero to a real number, then you get the same real number back

Let

a -----> a real number

a+0=0+a=a

therefore

a+0= a

4 0

3 years ago