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wlad13 [49]
3 years ago
14

What is the value of the expression

Mathematics
1 answer:
dusya [7]3 years ago
5 0
Add up the exponents of  i  :  0+1+2+3+4 = 10.  So we have i^10.

This separates as follows:  (i^4)^2 *i^2, which is equal to (1)^2 * (-1) = -1.
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Can someone please help me?
lawyer [7]
Area is 140 and perimeter is 16
3 0
2 years ago
Prove that root3 (cosec (20))-sec (20)=4
Tems11 [23]
Root 3 /sin 20 - 1/cos 20

= (root3 cos 20 - sin 20 )/ (sin 20 cos 20)
(multiplying and dividing by 2)
=  2* (root3/2 cos 20 -1/2 sin 20)/ (sin 20 cos 20)

now sin 20 cos 20  = (2 sin 20 cos 20)/2 = (sin 40)/2
and writing root3/2 = sin 60, 1/2 = cos 60

= 2* (sin 60 cos 20 - cos 60 sin 20)/ (sin 40)/2

= 4* (sin (60-20))/sin 40

= 4* (sin 40)/sin 40
=4

Ask if any doubt in any step :)
7 0
3 years ago
Read 2 more answers
Need help quick!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Nookie1986 [14]

Answer:

-10,000 / -2000, although 10,000/2000 gives the same answer.

Step-by-step explanation:

The equations -10,000/2000 and 10,000/-2000 are negative, and negative days do not make sense, thus eliminating those answers.

Also, she wants to descend 10,000 feet, so that makes it -10,000 int he equation.

3 0
3 years ago
An investor has an account with stock from two different companies. Last year, her
lara [203]

Answer:

4.5%

Step-by-step explanation:

800(1-0.01)=\color{green}{792}

800(1−0.01)=792

6180(1-0.05)=\color{blue}{5871}

6180(1−0.05)=5871

Last Year This Year

Stock A 800 792

Stock B 6180 5871

Total 6980 6663

\text{Find overall decrease:}

Find overall decrease:

6980(1-r)=6663

6980(1−r)=6663

\frac{6980(1-r)}{6980}=\frac{6663}{6980}

6980

6980(1−r)

​

=

6980

6663

​

1-r=0.954585

1−r=0.954585

-r=-0.045415

−r=−0.045415

Subtract 1

r=0.045415

r=0.045415

Divide by -1

\text{Final Answer: }4.5\%

Final Answer: 4.5%

Multiply by 100 and round to nearest 10th

6 0
3 years ago
What number is one hundred thousand more than 75,000? Explain how you know?
mr Goodwill [35]
75000. one hundread thousand more would be 100,000 more that what is given making it 175,000
5 0
3 years ago
Read 2 more answers
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