1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
djyliett [7]
3 years ago
13

Solve H= -b divided by 2a for b

Mathematics
1 answer:
nata0808 [166]3 years ago
7 0

Answer:

b=-2aH

Step-by-step explanation:

H=-b/2a

Apply cross multiplication

H×2a=-b

2aH=-b

In the question you are to find positive b not negative b so you have to take negative b to the left hand side of the equation to become positive b and take 2aH to the right hand side to become -2aH

therefore b=-2aH

You might be interested in
The net of a prism is shown below.
Sliva [168]

Answer:

nothing is there

Step-by-step explanation:

7 0
3 years ago
(7 + 7i)(2 − 2i)
Ostrovityanka [42]

The complex number  -7i into trigonometric form is 7 (cos (90) + sin (90) i) and  3 + 3i in trigonometric form is 4.2426 (cos (45) + sin (45) i)

<h3>What is a complex number?</h3>

It is defined as the number which can be written as x+iy where x is the real number or real part of the complex number and y is the imaginary part of the complex number and i is the iota which is nothing but a square root of -1.

We have a complex number shown in the picture:

-7i(3 + 3i)

= -7i

In trigonometric form:

z = 7 (cos (90) + sin (90) i)

= 3 + 3i

z = 4.2426 (cos (45) + sin (45) i)

\rm 7\:\left(cos\:\left(90\right)\:+\:sin\:\left(90\right)\:i\right)4.2426\:\left(cos\:\left(45\right)\:+\:sin\:\left(45\right)\:i\right)

\rm =7\left(\cos \left(\dfrac{\pi }{2}\right)+\sin \left(\dfrac{\pi }{2}\right)i\right)\cdot \:4.2426\left(\cos \left(\dfrac{\pi }{4}\right)+\sin \left(\dfrac{\pi }{4}\right)i\right)

\rm 7\cdot \dfrac{21213}{5000}e^{i\dfrac{\pi }{2}}e^{i\dfrac{\pi }{4}}

\rm =\dfrac{148491\left(-1\right)^{\dfrac{3}{4}}}{5000}

=21-21i

After converting into the exponential form:

\rm =\dfrac{148491\left(-1\right)^{\dfrac{3}{4}}}{5000}

From part (b) and part (c) both results are the same.

Thus, the complex number  -7i into trigonometric form is 7 (cos (90) + sin (90) i) and  3 + 3i in trigonometric form is 4.2426 (cos (45) + sin (45) i)

Learn more about the complex number here:

brainly.com/question/10251853

#SPJ1

3 0
2 years ago
You are standing on top of a 50 foot cliff over looking a pond. The angle of depression from you to the pond is 47 degrees. How
Bingel [31]

Answer: 97

Step-by-step explanation: hope this is right.

7 0
3 years ago
In the expression 14b what is the coefficient? *
Pachacha [2.7K]

Answer:

14

Step-by-step explanation:

4 0
3 years ago
Eventhough i solved it i don't understand how to fill the colors
Lisa [10]
"color the piece according to your color chart." Do you have that? If you don't, I wouldn't worry, you still did all the work and got all the answers, so your teacher should be fine with it.
7 0
3 years ago
Read 2 more answers
Other questions:
  • 2000 Toyota Tundra white 6 cylinder manual 106,675 miles $4,899 1998 Chevrolet 1500 red 6 cylinder automatic 120,325 miles $ 4,7
    6·1 answer
  • The scatterplot represents the total fee
    6·1 answer
  • What’s the width? Please help ASAP
    13·1 answer
  • Can y’all help me answer these questions
    14·1 answer
  • Solve for x. assume that lines which appear to be tangent are tangent
    10·1 answer
  • Which expression can be used to approximate the expression below,for all positive number a,b and x where a =/ 1 and b=/ 1
    8·1 answer
  • Christine, Odys, and Ariela decided to go to the movie. They got a discount of $10
    11·2 answers
  • COLOR THEME
    14·1 answer
  • Freddie needs to buy 3 dozen cookies for a party. The first 20 cookies cost $0.27 each. The rest cost $0.17 each.
    13·1 answer
  • A rectangle has an area of 45x2 − 42x − 48 and a width of 5x − 8. what is the length of the rectangle? to find the length of the
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!