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bekas [8.4K]
3 years ago
13

Tell whether the statement is always, sometimes, or never true. Explain.

Mathematics
2 answers:
Nastasia [14]3 years ago
8 0

Answer:

1) Sometimes

2) Never

Step-by-step explanation:

1) you could have two angles add up to 180 degrees and one of them could be less than 90

example, x = 140° and y = 40°

2) if two angles are complementary then their sum is 90° so neither angle must be less than 90°, thereby making them both acute angles

Andrews [41]3 years ago
7 0

Answer:

1. If x and y are supplementary angles, then y is sometimes acute because supplementary angles are angles that add up to 180 degrees. So, y can be acute while x can be obtuse, y can be obtuse while x can be acute, or both can be right angles.

2. If x and y are complementary angles, then x is never obtuse. Complementary angles are angles that add up to 90 degrees, and obtuse angles are angles over 90 degrees, so it's impossible to have an obtuse angle as a complementary angle.  

Step-by-step explanation:

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GIVING BRAINLESS PLEASE HELP THIS IS THE LAST QUESTION I HAVE ILL EVEN MAKE U FREE ART! Just HELP
Novosadov [1.4K]

Answer:

number 1 is $15 if i figure the rest out i will comment

6 0
3 years ago
Read 2 more answers
the 856 students at school represent a 20% decrease on the previous year, when the school population was
blondinia [14]

Step-by-step explanation:

sgkwiwbwisbsydjsgs it gsuagia doozy f hddh dish of hi isvsisvsshsjshjsvshvshsissb

5 0
2 years ago
find the equation of a cubic function whose graph passes through points (3,0) and (1,4) and is tangent to x-axis at the origin
Tomtit [17]

Answer:

y = -2x^2(x - 3)

Step-by-step explanation:

<em><u>Preliminary Remark</u></em>

If a cubic is tangent to the x axis at 0,0

Then the equation must be related to y = a*x^2(x - h)

<em><u>(3,0)</u></em>

If the cubic goes through the point (3,0), then the equation will become

0 = a*3^2(3 - h)

0 = 9a (3 - h)

0 = 27a - 9ah

from which h = 3

<em><u>From the second point, we get</u></em>

4 = ax^2(x - 3)

4 = a(1)^2(1 - 3)

4 = a(-2)

a = 4 / - 2

a = -2

<em><u>Answer</u></em>

y = -2x^2(x - 3)

 

3 0
3 years ago
I asked before and didn’t get an answer I really don’t understand this thanks.
dmitriy555 [2]
The answer is D, because that is what you should get when you multiply it out.

4x^2 times x^2 = 4x^4 because...

1) multiply the 4 and the one in front of the x on the second term = 4 then

2) multiply x^2 times x^2 to get x^4, not x^3, so you can immediately eliminate A and B to save time.

Now let's deal with the second part..."may or may not be" part

A polynomial is an expression with more than two algebraic terms

terms are like...
2x + 3y ---there's two terms there, eventhough the 2 and x are multiplied, it doesn't count (same with the 3 and y)
since it only have two terms, not more than two terms, it is called a binomial, not polynomial. I think that's what they mean by that

one term with a variable (y,x,and so on) is called a monomial

one term with no var is called a constant

there's many more but hope this gave you some help
3 0
3 years ago
Read 2 more answers
Zoya asked the students of her class their baseball scores and recorded the scores in the table shown below: Baseball Scores Sco
nlexa [21]

Answer:

4.06

Step-by-step explanation:

Given :

Scores     Number of students

 0                     1

 1                      2

 2                     5    

 3                     3

 4                     6

 5                     7

 6                     9

To Find: Mean

Solution:

Mean = \frac{\text{Sum of all scores}}{\text{number of students}}

Mean = \frac{0 \times 1+1\times 2+2\times 5+3\times 3+4\times 6+5\times 7+6\times 9}{1+2+5+3+6+7+9}

Mean = \frac{134}{33}

Mean = 4.06

Hence, The Mean of baseball score is 4.06 .              

4 0
3 years ago
Read 2 more answers
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