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
Oxana [17]
3 years ago
8

Rhett is solving the quadratic equation 0 = x2 - 2x - 3 using the quadratic formula. Which shows the correct substitution of the

values a, b, and c into the quadratic formula

Mathematics
2 answers:
dem82 [27]3 years ago
8 0

Answer: it’s a

Step-by-step explanation:

djverab [1.8K]3 years ago
6 0

Answer:

A

Explanation:

Just did it on Edgenuity and got it right.

Hope this helped!! : )

You might be interested in
Find AC. PLSSS HELP BRAINLIEST....
MrRissso [65]

Answer:

5.3

Step-by-step explanation:

Cos(68) = adjacent/hypotenuse

Cos(68) = 2/AC

AC = 2/cos(68)

AC = 5.3389343253

AC = 5.3

4 0
3 years ago
Read 2 more answers
What is the length of AC? What is the measure of angle A? What is the measure of angle B?
kipiarov [429]

Answer/Step-by-step explanation:

✔️Find AC using Pythagorean Theorem:

AC² = 25.2² - 11.3²

AC² = 507.35

AC = √507.35

AC = 22.5 (nearest tenth)

✔️Find m<A using trigonometric ratio:

Reference angle = A

Opp = 11.3

Hyp = 25.2

Sin(A) = opp/hyp

Sin(A) = 11.3/25.2

A = sin^{-1}(11.3/25.2)

A = 26.6° (nearest tenth)

✔️Find m<B using trigonometric ratio:

Reference angle = B

Adj = 11.3

Hyp = 25.2

Cos(A) = adj/hyp

Cos(A) = 11.3/25.2

A = cos^{-1}(11.3/25.2)

A = 63.4° (nearest tenth)

6 0
3 years ago
An engineer is designing a storage compartment in a spacecraft .The compartment must be 2 meters longer than it is wide, and its
serg [7]

Answer:

Let x be the width of the compartment,

Then according to the question,

The length of the compartment = x + 2

And the depth of the compartment = x -1

Thus, the volume of the compartment,  V = (x+2)x(x-1) = x^3 + x^2 - 2x

But, the volume of the compartment must be 8 cubic meters.

⇒ x^3 + x^2 - 2x = 8

⇒ x^3 + x^2 - 2x - 8=0

⇒ (x-2)(x^2+3x+4)=0

If x-2=0\implies x = 2 and if  x^2+3x+4=0\implies x = \text{complex number}

But, width can not be the complex number.

Therefore, width of the compartment = 2 meter.

Length of the compartment = 2 + 2 = 4 meter.

And, Depth of the compartment = 2 - 1 = 1 meter.

Since, the function that shows the volume of the compartment is,

V(x) = x^3 + x^2 - 2x

When we lot the graph of that function we found,

V(x) is maximum for infinite.

But width can not infinite,

Therefore, the maximum value of V(x) will be 8.




8 0
3 years ago
Read 2 more answers
What is a qualitative prediction?
d1i1m1o1n [39]
A qualitative prediction is made by using senses and educated guesses, unlike quantitative observations which use scientific methods. For example, you take a rock and examine it. One qualitative observation of this rock is it is smooth and gray. A quantitative observation is it is two pounds.
Hope I helped :))
7 0
3 years ago
A boat travels for 4 hours at a constant speed of 35. 25 km/h. How far does the boat travel? 105 km 120 km 141 km 352 km.
AleksandrR [38]

Answer:

12 hours(105km)

13.64 hours (120 km)

16 hours (141 km)

40 hours ( 352km)

8 0
2 years ago
Other questions:
  • Evaluate 7-5p+3q when p = 1 and q = 7
    13·2 answers
  • What is the length of cd
    15·1 answer
  • Express 0.8 in the form of p by q​
    10·1 answer
  • A) What FRACTION is equal to 50% of 1/3?<br>b) what FRACTION is equal to 75% of 1/2​
    10·1 answer
  • One-sixth of the students surveyed use their cell phones to listen to
    12·2 answers
  • Find the average rate of change for f(x) = x2 + 9x + 18 from x = -8 to x = -2.
    11·1 answer
  • Melissa and her freinds are streching rubbing bands for an activyty in science class . mellisa streched hers 10 inces. juan 3 1/
    13·1 answer
  • In the diagram below, x is a whole number. what is the smallest possible value for x?
    14·1 answer
  • How to simply the radical
    5·1 answer
  • PLEASE HELP, AND SHOW WORK PLEASE!!!
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!