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Zarrin [17]
3 years ago
13

What is square root of -98 + 71

Mathematics
1 answer:
rodikova [14]3 years ago
8 0

Answer:

= 5.196 i

Step-by-step explanation:

The problem tells us to find the square root of -98 +71

√(-98 + 71)

= √(-27)

Which is an imaginary number

=√(-3^3)

Lets remember that, √(-1) = i

= i*3√(3)

= 5.196 i

Please see attached image for more information

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Find the upper quartile of the given data below:<br> ​<br> ​ 11, 8, 5, 4, 7, 6, 9, 10, 12
JulijaS [17]

Answer:

9.5

Step-by-step explanation:

1. Arrange in ascending order

4 5 6 7 8 9 10 11 12

2. Upper Quartile formula:

3×(N+1)÷4

3. Number of terms (N) = 9

4. Apply:

3×(9+1)/4

=3×10/4

=30/4

=7.5th term

5. 7.5th term is the average of the 7th and the 8th term so

Take average

7th term is 9 and 8th term is 10

6. Find average of 9 and 10 = 9.5

7. ANSWER : THE UPPER QUARTILE IS 9.5 FOR THE GIVEN DATA

7 0
3 years ago
Using the chart "Amount of $1 at Compound Interest" from previous reading section "More Compound Interest", find the total amoun
tatyana61 [14]

Annually:    Total Amount= $1,611.76   Interest Amount= $711.76

Semiannually: Total Amount= $1,625.50  Interest Amount= $725.50

Quarterly:  Total Amount= $1,632.62   Interest Amount= $732.62

7 0
3 years ago
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motikmotik

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Step-by-step explanation:

8 0
3 years ago
70 + x + 55 + 30 = 180
sergiy2304 [10]

Answer:

x=25

Step-by-step explanation:

First, we add all like terms. Then, we solve for x.

70+x + 55 + 30 = 180\\x+70 + 55 + 30 = 180\\x+155=180\\x=25

We can rearrange some things because order does not matter with addition. Next, we just use basic equation solving techniques.

3 0
3 years ago
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Suppose angles A and B are complementary angles and m∠A = (x-5)° and m∠B = (2x+20)° Solve for X and then find m∠A and m∠B
MariettaO [177]

The angles are x =25, angle A = 20 and B = 70

<h3>How to solve for the angles?</h3>

The given parameters are:

A = x - 5

B = 2x + 20

Both angles are complementary angles.

This means that:

x - 5 + 2x + 20 = 90

Evaluate the like terms

3x = 75

Divide both sides by 3

x = 25

Substitute x = 25 in A = x - 5 and B = 2x + 20

A = 25 - 5 = 20

B = 2 * 25 + 20 = 70

Hence, the angles are x =25, angle A = 20 and B = 70

Read more about complementary angles at:

brainly.com/question/98924

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3 0
2 years ago
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