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ella [17]
3 years ago
14

1+3to the 2 power •2-5

Mathematics
1 answer:
beks73 [17]3 years ago
5 0

Well first following pemdas we do 3 to the 2nd power so 3*3 = 9

then we do 9 * 2 = 18

then our problem looks like this 1 + 18 - 5

so 1 +18 = 19

then 19 - 5 = 14 so our answer is 14

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Find the product of 4cis (pi/4) times 5cis (pi/6) in polar form.
KengaRu [80]

We have the following expression

4\cdot\text{cis(}\frac{\pi}{4})\cdot5\text{cis(}\frac{\pi}{6})

This is equivalent to

4\cdot\text{cis(}\frac{\pi}{4})\cdot5\text{cis(}\frac{\pi}{6})=(4\times5)cis(\frac{\pi}{4}+\frac{\pi}{6})

Since

\frac{\pi}{4}+\frac{\pi}{6}=\frac{6\pi+4\pi}{24}=\frac{10}{24}\pi=\frac{5}{12}\pi

we have that

4\cdot\text{cis(}\frac{\pi}{4})\cdot5\text{cis(}\frac{\pi}{6})=20cis(\frac{5\pi}{12})

Therefore, the answer is the second option from top to bottom.

3 0
1 year ago
What are the multiples of 7?
olya-2409 [2.1K]

Answer:

7,14,21,28,35,42,49,56,63,70,77,84,91,98,105,112,119,126,133

Step-by-step explanation:

7 0
3 years ago
What percent of 20 is 6
Luba_88 [7]

Answer:  30 percent of 20 is 6.

_______________________________________________

Step-by-step explanation:

_______________________________________________

(n/100)  * 20 = 6  ?  

Solve for "n"  .

_______________________________________________

Divide each side of the equation by "20" :

{ (n/100) * 20 }  / 20  = 6 / 20 ;

to get:

n/100  = 6/20 ;  

↔ 6/20 = n/100 ; solve for "n" ;

Look at the denominators:


20 * ? = 100 ?

  100/ 20 = ?  ;

  100/20 = 5 ;


So, 20 *  " 5" = 100 ;

Then 6* 5 = "n"  (for the numerator, "n";  in  :   "n /100" ) ;

                  →  6 * 5 = 30 ;

                  →  n = 30 .

_______________________________________________

 Answer:  30 percent of 20 is 6.

_______________________________________________

6 0
3 years ago
A histogram titled Number of texts has time on the x-axis and texts on the y-axis. From 6 a m to 8 a m there were 15 texts, 8 to
Varvara68 [4.7K]

Answer:

The cluster from 4 p.m.–10 p.m. means that most of the texts were sent in the afternoon and evening.

More texts were sent from 6 p.m.–8 p.m. than from 8 p.m.–10 p.m.

Step-by-step explanation:

From 6 a m to 8 a m there were 15 texts,

8 to10 a m: 5, 10 a m to 12 p m: 0,

12 p m to 2 p m: 0,

2 p m to 4 p m: 0,

4 to 6 p m: 29,

6 to 8 p m: 19,

8 to 9 p m, 14,

10 p m to 12 a m: 5.

3 0
3 years ago
Read 2 more answers
4 1/6 + (-2 5/6)= kjoijoijoiojijjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjj
Bogdan [553]

Answer:

I don’t know about the last part but what I do know id the answer to the equation.

Answer: 1 1/3

Step-by-step explanation:

1. Remove the paranthesis

Removing the paranthesis will make it much easier to solve the equation.

We now have 4 1/6 + -2 5/6.

2. Rearrange the equation

We can’t have two symbols next to each other. We need to cross out one symbol so we can have only one. + and - = -. So let’s keep the "-" symbol.

We now have 4 1/6 - 2 5/6.

3. Solve the remaining equation

Now that we have a proper equation which we can solve, let’s do it.

We should then end up with 1 1/3.

Answer: 1 1/3

8 0
3 years ago
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