All categories

3 years ago

NEED HELP QUCKILY PLZ HURRY

Mathematics

2 answers:

Alexeev081 [22]3 years ago

8 0

Answer: Angles 1 and 2 are complementary.

Step-by-step explanation:

By rule, the sum of complementary angles is equal to 90 degrees.

Because the large angle holding angles 1 and 2 is 90 degrees (the small box in the corner tells you that), and angles 1 and 2 combine to make up the entirety of the angle, they are complementary.

yulyashka [42]3 years ago

7 0

<h2>Answer:</h2>

<u>The angles given are </u><u>Complementary angles</u>

<h2>Step-by-step explanation:</h2>

By mathematics rules, any two angles whose sum is equal to 90 are called complementary angles. In a right angled triangle, the two non-right angles are complementary, because in a triangle the three angles add to 180°, and 90° has already been taken by the right angle. When two angles add to 90°, we say they "Complement" each other. The same rule goes for the given picture where both the angles are 45 degrees and adding them gives us 90 degrees.

You might be interested in

What are expressions equal to 16a+40

Liula [17]

8a+8a+40
It is equivalent

8 0

4 years ago

If a pine tree grows 4 inches per year, how long will it take for the tree to reach a height of 13 feet?

attashe74 [19]

Answer:

Should be 39 years.

there is 12 inches in a foot. and if the tree grows 4 inches every year, then in 3 years the tree would be 1 foot. 13 x 3 = 39, thus proving that in 39 years, it will be 13 feet tall. I may be wrong but this sounds correct.

5 0

4 years ago

Read 2 more answers

Help with this question, please!!

IceJOKER [234]

Answer:

72°

Step-by-step explanation:

You correctly found x, but the measure of the angle is ...

4x-22 = 4·23.5-22 = 72°

___

or (6x-69)° = (141-69)° = 72°

4 0

3 years ago

80% of _____ games is 32 games AND 75% of ____ peaches is 15 peaches

RoseWind [281]

Hi there!

80% of 40 games is 32 games AND 75% of 20 peaches is 15 peaches.

4 0

4 years ago

Read 2 more answers

Of 560 marbles in a bag, 65% are red and the rest are blue. After 28 red marbles are replaced with blue ones, how many blue marb

jonny [76]

Answer: The answer is 400 blue marbles.

Step-by-step explanation: Given that there are 560 marbles in a bag, out of which 65% are red and rest are blue.

So, number of red marbles is

$n_r=65\%\times 560=\dfrac{65}{100}\times 560=364,$

and number of blue marbles is

$n_b=560-364=196.$

Now, if 28 red marbles are replaced by blue marbles, the the new number of red and blue marbles will be

$n_r^\prime=364-28=336~~~\textup{and}~~~n_b^\prime=196+28=224.$

Now, to get 65% of the marbles blue, we need to add some more blue marbles to the bag. Let 'x' number of blue marbles are added to the bag, then

$65\%\times (560+x)=224+x\\\\\Rightarrow \dfrac{65}{100}\times (560+x)=224+x\\\\\Rightarrow 13(560+x)=20(224+x)\\\\\Rightarrow 7280+13x=4480+20x\\\\\Rightarrow 7x=2800\\\\\Rightarrow x=400.$

Thus, 400 blue marbles need to be added to the bag.

5 0

4 years ago

Read 2 more answers