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kobusy [5.1K]
2 years ago
12

Which of the following is not always true?

Mathematics
1 answer:
miss Akunina [59]2 years ago
5 0

Answer:

All obtuse angles are congruent ⇒ False

Step-by-step explanation:

Vertical angles and alternate interior angles are always congruent. All right angles, by definition, are equal to 90 degrees and therefore must be congruent. Obtuse angles are angles between 90 and 180 degrees. Therefore, not all obtuse angles are congruent.

Example: 127° and 163° are both obtuse but clearly not congruent.

⇒Answer choice 4

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mr. Savage shoes 3 gallons of paint to cover 1350 sq ft of wall space at this rate how much paint will be needed to cover 1800 s
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Answer:

4 more gallons of paint

Step-by-step explanation:

5 0
4 years ago
Please Help! Malik agreed to practice basketball drills with a new player, Tyler, during practice. Malik's best friend, Samuel,
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Malik can remain honest with his partner Samuel and respect his opinion.
3 0
2 years ago
Consider A is a set and B is another set, if Au B=A n B, then
Y_Kistochka [10]

Answer:

A = B

Step-by-step explanation:

The correct option is;

A = B

Check:

A = {2,3,4}

B = {2,3,4}

Au B = A n B = {2,3,4}

A or B cannot be null.

check

A = {2,3,4}

B = {}

Au B = {2,3,4}

A n B = {}

7 0
3 years ago
Is 144 a perfect square or not​
Rina8888 [55]

Answer: Yes

Step-by-step explanation: 144 is a perfect square. In other words, it's possible to find a whole number that can be multiplied by itself that gives us 144.

In this case, we multiply 12 by 12 or 12² to get 144 which means 144 is a perfect square. Also, it's on our perfect square list which I will attach below.

6 0
3 years ago
During two years, the population of birds of an island became 7 times more than before. If the first year increase in the popula
9966 [12]

The percent increase of the second year was 85.71%

Step-by-step explanation:

The exponential growth formula is y=a(1+r)^x

where;

y=population after x years

a=original population

r=growth rate as a decimal

x=number of time interval that have passed

Let starting population be p

The first year increase in the population was 40% this means;

r=0.4 , x=1 and a=p thus the equation will be

y=p(1+0.4)^1 ⇒⇒y=1.4 p

In the second year the population of birds of an island became 7 times more than before which is 7p

7p= 7*1.4p= 9.8p

Increase will be;

9.8p-1.4p=8.4

% increase will be;

8.4/9.8 *100 =85.71%

Learn More

Percent increase: brainly.com/question/13882170

Keywords : population, birds, island,increase

#LearnwithBrainly

5 0
3 years ago
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