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
Anna [14]
3 years ago
7

What is the value of b if (3 + i) and (3 - i) are complex roots of 2x² + bx + 20 = 0?

Mathematics
1 answer:
Bogdan [553]3 years ago
3 0
A is the answer Bc I did this before and my teacher said I did an excellent job!
You might be interested in
Please help thanks!!!
Julli [10]
The first one is the answer
5 0
3 years ago
Read 2 more answers
Simplify each product. Write in standard form. Explain
max2010maxim [7]
Use distributive property:
16. 5k(3 - 4k)
15k - 20k^2
18. 6g^2(g - 8)
6g^3 - 48g^2
20. -2n^2 (5n - 9 + 4n^2)
-10n^3 + 18n^2 - 8n^4
5 0
3 years ago
Erin created a scale drawing for a garden that will be 10 ft by 5 ft. She plans to include a section in the garden for herbs, wh
Elanso [62]

Answer:

The dimensions of the herb garden in the scale drawing are 2.4 in. by 6 in

Step-by-step explanation:

we know that

The dimensions of the garden in the actual are 10 ft by 5 ft

The dimensions of the garden on the scale drawing are 12 in. by 6 in

step 1

Find the scale factor

To find the scale factor divide the corresponding side on the scale drawing by the corresponding side in the actual

so

\frac{12}{10}\ \frac{in}{ft}

simplify

1.2\ \frac{in}{ft}

That means

1.2 inches in the drawing represent 1 foot in the actual

step 2

Find out  the dimensions of the herb garden on the scale drawing

we know that

The dimensions of the herb garden in the actual are 2 ft by 5 ft

Multiply by the scale factor

so

2\ ft=2(1.2)=2.4\ in

5\ ft=5(1.2)=6\ in

therefore

The dimensions of the herb garden in the scale drawing are 2.4 in. by 6 in

5 0
3 years ago
Drake rolls two fair number cubes. 1 2 3 4 5 6 1 1 2 3 4 5 6 2 2 4 6 8 10 12 3 3 6 9 12 15 18 4 4 8 12 16 20 24 5 5 10 15 20 25
e-lub [12.9K]
Wouldn’t it be 2/15 chance because there is only two fifteens
7 0
3 years ago
Read 2 more answers
Write the function as a set of ordered pairs.
Naya [18.7K]

Answer:

1. (1,10) 2. (2,-3) 3. (3,3)

3 0
3 years ago
Other questions:
  • If the gradient of a line,C, is 2/3, what is the gradient of a line which perpendicular to C
    6·1 answer
  • The number of branches on a large tree after the year 2000 is represented by the following table:
    10·2 answers
  • What is the volume of the figure ? <br> A.25.1cm <br> B.50.3cm<br> C.100.5cm<br> D.201.1cm
    12·2 answers
  • What are the intercepts?
    12·2 answers
  • Where do I find the “solution” do a quadratic equation on a graph? How many possible real solutions are there when you solve a q
    8·2 answers
  • Write an expression using fractions to show how to determine the amount that each person will pay. Then calculate each person's
    14·2 answers
  • Which of the following is equivalent to the expression below? 2/9 times 3/4 A-2/9 divided by 3/4 B-3/4 divided by 2/9 C-2/9 divi
    6·1 answer
  • What is the mean for the data set, to the nearest whole number? 8.5 10 8 9 I need help
    9·1 answer
  • Can someone please help me <br> f(x) = -3x + 20; f(8)
    7·2 answers
  • Can you help me with all those problems please
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!