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Afina-wow [57]
3 years ago
14

Twice a number increased by 3 is 45. What is the number?

Mathematics
2 answers:
Arada [10]3 years ago
7 0
135 because 45x3=135 at least I'm sure this is what you mean
irinina [24]3 years ago
5 0

2N+3=45

2N = 42

N = 42/2 = 21

N = 21

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A certain company assigns employees to offices in such a way that some of the offices can be empty and more than one employee ca
miss Akunina [59]

Answer:

Step-by-step explanation:

Given that a certain company assigns employees to offices in such a way that some of the offices can be empty and more than one employee can be assigned to an office.

The company can assign I employee to any one of 2 office i.e. in 2 ways

Similarly can assign II employee also in 2 ways and III in two ways.

Total no of ways = 2x2x2 = 8

There are 8 ways the company can assign 3 employees to 2 different offices in such a way that some of the offices can be empty and more than one employee can be assigned to an office

6 0
3 years ago
If tanA+cotA=2 then find the value of cosA​
aniked [119]

Answer:

cos A=

\frac{1}{ \sqrt{2} }

Step-by-step explanation:

We know,

cotA=

\frac{1}{ \tan(a) }

Substituting the value of cot A in the given equation, we get

\tan( a)  +  \frac{1}{ \tan(a) }  = 2

\frac{{ \tan }^{2} a + 1}{  \:  \tan(a)  }  = 2

{ \tan }^{2 \: } a \:  + 1 = 2 tan \: a

{ \tan }^{2} a - 2 \tan \: a + 1 = 0

( \tan \: a - 1) {}^{2 }  = 0

\tan \: a - 1 =  \sqrt{0}

\tan \: a = 1

\tan \: a \:  =  \tan \: 45

a = 45

\cos \: a =  \cos \: 45

\cos \: a =   \frac{1}{ \sqrt{2} }

4 0
3 years ago
PLS HELP WILL GIVE BRAINLIAST !!!
DENIUS [597]

Answer:

32.5 feet long and 20 feet wide

Step-by-step explanation:

To solve for the length first, you have it measured as 26 in long and each 4 in is 5 ft so you can go ahead and divide 26 in by 4 in and that gives you 6.5 in so what we did was figure out how many 4 in were in 26 in and therefore we have a 6.5 and so just to match that to the 5 ft per each 4 in (in this case we have 6.5) so we multiply 6.5*5 and that equals 32.5 ft which is the length of the garden bed.

Next we are going to solve for the width which is 16 in wide in the scale and so again each 4 in is 5 ft so here again we're going to divide 16 in by 4 in and that equals 4 in and so again each 4 in is 5 ft so we're going to go ahead and multiply 4 * 5 and that gets you 20 ft which is the width of the garden bed.

8 0
3 years ago
Question 9
yKpoI14uk [10]

Answer:

They are equivalent

Step-by-step explanation:

If you divide 36 and 45 by 9, you get 4 and 5

5 0
3 years ago
Help! I don't understand this
Murljashka [212]

The area of your circle is about 530.93 m

The diameter of your circle is 26 m, just multiply your radius by 2

The circumference of the circle is about 81.68


The equation to finding the area is

pi x r x 2

3.14 times 13 times 2

The equation to finding the diameter

r x 2

radius times 2

The equation for finding circumference

pi x d

3.14 times 26

Let me know if im wrong, otherwise I want brainliest, PLEASE!!

8 0
3 years ago
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