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
lana66690 [7]
3 years ago
10

Some of the steps in the derivation of the quadratic formula are shown. Step 4: Step 5: Step 6: Step 7: Which best explains why

the expression cannot be rewritten as during the next step? Negative values, like −4ac, do not have a square root. The ± symbol prevents the square root from being evaluated. The square root of terms separated by addition and subtraction cannot be calculated individually. The entire term b2 − 4ac must be divided by 2a before its square root can be determined.
Mathematics
2 answers:
Vladimir79 [104]3 years ago
7 0

Answer:c

Step-by-step explanation:

AlexFokin [52]3 years ago
5 0
               The correct answer for this question is this one: "The square root of terms separated by addition and subtraction cannot be calculated individually."

<span>The statement that best explains why the expression cannot be rewritten as during the next step is that t</span>he square root of terms separated by addition and subtraction cannot be calculated individually.
Hope this helps answer your question and have a nice day ahead.    ..... hope that helps

You might be interested in
You are in a hot air balloon looking down at two ponds. Pond A which is in front of your balloon, is at an angle of depression t
MatroZZZ [7]

a. See attachment for the labelled diagram

b. Using the sine ratio, distance from the hot air to pond A is 5,038.9 m, while distance from the hot air to pond B is 6,287.1 m.

c. Distance between the two ponds is 1,263.5 m.

<h3>What is the Sine and Tangent Ratios?</h3>

Sine ratio, is: sin ∅ = opposite side/hypotenuse length

Tangent ratio is: tan ∅ = opposite side/adjacent length.

a. The diagram with the appropriate labels is shown in the image attached below.

b. Use the sine ratio to find the distance from the hot air to pond A (CA) and to pond B (CB):

CA = hypotenuse

∅ = 10°

Opposite = 875 m

sin 10 = 875/CA

CA = 875/sin 10

CA ≈ 5,038.9 m (distance from the hot air to pond A)

CB = hypotenuse

∅ = 8°

Opposite = 875 m

sin 8 = 875/CB

CB = 875/sin 8

CB ≈ 6,287.1 m (distance from the hot air to pond B)

c. Distance between the two ponds, BA = BD + DA.

Apply the tangent ratio to find BD and DA

tan 8 = 875/BD

BD = 875/tan 8

BD = 6,225.9 m

tan 10 = 875/DA

DA = 875/tan 10

DA = 4,962.4 m

Distance between the two ponds = 6,225.9 - 4,962.4 = 1,263.5 m.

Learn more about the sine and tangent ratios on:

brainly.com/question/24137232

#SPJ1

8 0
2 years ago
Which of the following expressions is equal to <br> -3x^2 - 27 ?
Alborosie

Answer: D. -3x+9i)(x+3i) i hope this helped :)

3 0
3 years ago
The 6% state income tax on a $42,000 salary.
Nimfa-mama [501]

Answer:

Tax=2,520 dollars

Step-by-step explanation:

7 0
3 years ago
A rectangle on a coordinate plane is translated 5 units up and 3 units to the left. Which rule describes the translation?
vladimir2022 [97]
Any time you move up or down, it affects the y coordinate and going up is positive so 5 units up is y + 5.
Moving left or right affects the x coordinate and moving left is negative so x - 3

(x - 3, y + 5)

So the answer is Option C).

6 0
3 years ago
Read 2 more answers
At the farmer's market, there is a scale that measures the weight of fruit and vegetables. The needle is 16 cm long, and it rota
Eddi Din [679]
It may help to draw a picture as you start planning this problem and draw a circle, showing a circle which represents the scale needle's range of motion 360 degrees around. The needle length will then be the radius of that circle.

We know that the needle rotated 68 degrees and are trying to find the distance it traveled in cm. To find out how far the needle traveled, we need to find the arc length - in this case, the distance between the needle's starting point and where it ended up after the oranges were placed on the scale on the circle.

There is a formula you can easily use to find the arc length
arc length = 2*\pi*r ( \frac{c}{360} )

We need to input the radius, r into this formula, as well as the central angle measure c, which in this case is 68 degrees.

2\pi(16) ( \frac{68}{360} )

If you multiply the above formula components all together using a calculator, you will get ~18.99. (When rounded to the second decimal place.)

So, the answer is around 19 cm. (Your answer may vary depending on how your teacher usually wants you to round answers.)
5 0
3 years ago
Read 2 more answers
Other questions:
  • 2/5 write two equivalent fraction
    13·2 answers
  • Container A and container B have leaks. Container A has 800 milaliters of water and is leaking 6 milaliters per minute. Containe
    13·1 answer
  • What the answer to find the next two terms of this sequence 31 24 17
    14·2 answers
  • HELP!!!! <br> Solve x=9w−3z−15 for w. Do not write w= in your answer.
    5·1 answer
  • Find the equation of the line through point (-2,8) with slope 1/2.
    8·1 answer
  • Evaluate 7 + (-3x^2) for x = 0.
    15·1 answer
  • Can someone please help me out with this I'm stuck
    7·1 answer
  • When Rs. 600 is divided between Ram and Shyam in the ratio 5:7 find how much money will get by Ram​
    14·1 answer
  • I realy need help please​
    14·2 answers
  • Gavin is moving into a new apartment that has a kitchen with an area of 50 square feet
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!