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sashaice [31]
2 years ago
12

Write 7 in the form a + ib

Mathematics
1 answer:
11Alexandr11 [23.1K]2 years ago
8 0

Answer:

Step 1. A=4

Step 2. Ib =3

Step 3 add it. Ans=7

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77 yd<br> 36 yd<br> What is the length of the hypotenuse?<br> C =<br> yards
Elden [556K]

Answer:

c = 85 yd

Step-by-step explanation:

Using Pythagoras' identity in the right triangle.

The square on the hypotenuse is equal to the sum of the squares on the other 2 sides , that is

c² = 77² + 36² = 5929 + 1296 = 7225 ( take square root of both sides )

c = \sqrt{7225} = 85

6 0
2 years ago
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Find the value of the variables, giving brief reasons for your answer:​
Pavlova-9 [17]

Answer:

a = 70°

b = 80°

Step-by-step explanation:

Angles on a straight line add up to 180°

⇒ a + 110 = 180

⇒ a = 180 - 110

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The sum of the interior angles of a quadrilateral is 360°

⇒ a + b + 130 + 80 = 360

⇒ 70 + b + 130 + 80 = 360

⇒ b + 280 = 360

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3 0
2 years ago
What is the lcm next f 3,8
jarptica [38.1K]

Answer:

24

Step-by-step explanation:

7 0
2 years ago
Steps to solve the equation 4n - 2n + 4 = -1 + 17
Liula [17]

4n-2n+4=-1+17

2n+4=-1+17

-1+17=16

2n+4=16

Move + 4 to the other side. Sign changes from +4 to -4

2n+4-4=16-4

2n=12

Divide by 2 for 2n and 12

2n/2=12/2

n=6

Check answer by using substitution method

4(6)-2(6)+4=16

24-12+4=16

12+4=16

16=16

Answer : n=6

3 0
3 years ago
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How do you solve equations through substitution and using inverse operations?
antoniya [11.8K]

Answer:

n = 45

Step-by-step explanation:

Rearrange:

Rearrange the equation by subtracting what is to the right of the equal sign from both sides of the equation :

2+2*(4+3)+4+4*n-(200)=0

Step  1  :

Pulling out like terms :

  -180 + 4n  =   4 • (n - 45)

Equation at the end of step  1  :

Step  2  :

Equations which are never true :

2.1      Solve :    4   =  0

This equation has no solution.

A a non-zero constant never equals zero.

Solving a Single Variable Equation :

2.2      Solve  :    n-45 = 0

Add  45  to both sides of the equation :

                     n = 45

One solution was found :

                  n = 45

Processing ends successfully

plz mark me as brainliest :)

4 0
3 years ago
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