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sweet-ann [11.9K]
3 years ago
13

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

Mathematics
2 answers:
andrezito [222]3 years ago
7 0
The answer is:  "never".
_____________________________

MissTica3 years ago
6 0

Answer:

never

Step-by-step explanation:

To Find :An equilateral triangle is a right triangle.

              1. always

              2.sometimes

              3.never

Solution :

Definition of equilateral triangles: a triangle having all sides equal in length

Since all sides are equal so by property of triangle (angle opposite to equal sides are equal ) so, all angles are equal .

If equilateral triangle is right angle then one of its angle is of 90°

And in equilatera triangle all angles are equal so all angles must be of 90°

We know that triangle sum property is : Sum of all angles of triangle is equal to 180°

So, 90°+90°+ 90° =180°

⇒270°≠180°

since this violates the angle sum property of triangle .

Thus an equilateral triangle can never be a right triangle

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A recent national survey found that high school students watched an average (mean) of 7.1 movies per month with a population sta
muminat

Answer:

H0: μc ≤ μs    Ha :μc > μs    

Step-by-step explanation:

The null and alternate hypotheses can be stated as

H0: μc ≤ μs    Ha :μc > μs    one tailed test

Where

μc =  Mean of college students watching movies in a month

μs  =  Mean of school students watching movies in a month

For one tailed test of α =0.05   the value of Z= ± 1.645

The critical region will be Z >  ± 1.645

It is of importance to note that by rejecting the null hypothesis and accepting the alternate hypothesis we are automatically rejecting all values of mean that are greater than 7.1

3 0
3 years ago
Question#1<br><br>will give brainliest
Travka [436]

Step-by-step explanation:

y = 16x²

you put the x values one after the other in place of x and do the calculations.

x = -4

y = 16×(-4)² = 16×16 = 256

x = -3

y = 16×(-3)² = 16×9 = 144

x = -2.5

y = 16×(-2.5)² = 16×6.25 = 100

x = -2

y = 16×(-2)² = 16×4 = 64

x = -1.5

y = 16×(-1.5)² = 16×2.25 = 36

x = -1

y = 16×(-1)² = 16×1 = 16

x = -0.5

y = 16×(-0.5)² = 16×0.25 = 4

x = 0

y = 16×0² = 16×0 = 0

x = 0.5

y = 16×0.5² = 16×0.25 = 4

x = 1

y = 16×1² = 16×1 = 16

and so on.

36, 64, 100, 144, 256

as you can see, the y values are the same for the positive and the negative values.

because squaring a negative number is the same as squaring the same positive number. that is, because (if you remember) squaring something means to multiply that something with itself. and minus multiplied by minus is plus, as plus multiplied by plus is plus.

and that creates the symmetry around the y-axis or x = 0. everything left of the y-axis is mirrored on the right side of the y-axis (and vice versa).

5 0
2 years ago
On a number line, between which two consecutive whole numbers would square root 27 be located 
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The answer is A) 5 and 6
7 0
3 years ago
Read 2 more answers
What is this expression in scientific notation
goblinko [34]
76 x 10^5 or 7.6 x 10^6
5 0
2 years ago
The simple interest on $15,000 for 4 years<br>is $8, 100. Calculate the rate percent per annum.​
insens350 [35]

Answer:

13.5%

Step-by-step explanation:

8100 interest/4 years=2,025 interest per year

principal x interest rate=interest per year

15000 x interest rate=2025

interest rate =2025/15000

interest rate=.135 or 13.5%

4 0
3 years ago
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