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
7nadin3 [17]
3 years ago
6

What are the solutions of 12 – x2 = 0?

Mathematics
2 answers:
RUDIKE [14]3 years ago
4 0

-  {x}^{2}  + 12 = 0 \\  - x {}^{2}  + 12 - 12 = 0 - 12 \\   -   {x}^{2}    =  - 12 \\  {x}^{2}  = 12 \\ x =  +  \sqrt{12 \:} and -  \sqrt{12}
Kazeer [188]3 years ago
4 0

Answer:

x = 2√3 and -2√3

Step-by-step explanation:

You might be interested in
Estimate the equation 12+ 19.61
Mandarinka [93]

<em>QUESTION:</em>

<em>QUESTION:estimate the equation 12+19.61.</em>

<em>QUESTION:estimate the equation 12+19.61.Answer:</em>

<em>QUESTION:estimate the equation 12+19.61.Answer:12+19.61 =31.61.</em>

4 0
3 years ago
Read 2 more answers
DUE ASAP PLZ HELP (brainliest if you get it right)
sammy [17]

here's the right answer!

A)  76 + 80 + 78 + x = 82 times 4

234 + x = 328

x = 94

B) Mei needs a score of at least 94 on the next exam.

hope you have a good day

4 0
3 years ago
What is three fourths the square of b
lana [24]
Simplifying it would make it 3/4b^2. I can't write it down the correct way, but it's three over four times b squared. Unless it's a square root, then things would be different.
4 0
3 years ago
If bolt thread length is normally distributed, what is the probability that the thread length of a randomly selected bolt is Wit
KatRina [158]

Answer:

a) 0.5762

b) 0.0214

c) 0.2718

Step-by-step explanation:

It is given that lengths of the bolt thread are normally distributed. So in order to find the required probability we can use the concept of z distribution and z scores.

Part a) Probability that length is within 0.8 SDs of the mean

We have to calculate the probability that the length of a bolt thread is within 0.8 standard deviations of the mean. Recall that a z- score tells us that how many standard deviations away a value is from the mean. So, indirectly we are given the z-scores here.

Within 0.8 SDs of the mean, means from a score of -0.8  to +0.8. i.e. we have to calculate:

P(-0.8 < z < 0.8)

We can find these values from the z table.

P(-0.8 < z < 0.8) = P(z < 0.8) - P(z < -0.8)

= 0.7881 - 0.2119

= 0.5762

Thus, the probability that the thread length of a randomly selected bolt is within 0.8 SDs of its mean value is 0.5762

Part b) Probability that length is farther than 2.3 SDs from the mean

As mentioned in previous part, 2.3 SDs means a z-score of 2.3.

2.3 Standard Deviations farther from the mean, means the probability that z scores is lesser than - 2.3 or greater than 2.3

i.e. we have to calculate:

P(z < -2.3 or z > 2.3)

According to the symmetry rules of z-distribution:

P(z < -2.3 or z > 2.3) = 1 - P(-2.3 < z < 2.3)

We can calculate P(-2.3 < z < 2.3) from the z-table, which comes out to be 0.9786. So,

P(z < -2.3 or z > 2.3) = 1 - 0.9786

= 0.0214

Thus, the probability that a bolt length is 2.3 SDs farther from the mean is 0.0214

Part c) Probability that length is between 1 and 2 SDs from the mean value

Between 1 and 2 SDs from the mean value can occur both above the mean and below the mean.

For above the mean: between 1 and 2 SDs means between the z scores 1 and 2

For below the mean: between 1 and 2 SDs means between the z scores -2 and -1

i.e. we have to find:

P( 1 < z < 2) + P(-2 < z < -1)

According to the symmetry rules of z distribution:

P( 1 < z < 2) + P(-2 < z < -1) = 2P(1 < z < 2)

We can calculate P(1 < z < 2) from the z tables, which comes out to be: 0.1359

So,

P( 1 < z < 2) + P(-2 < z < -1) = 2 x 0.1359

= 0.2718

Thus, the probability that the bolt length is between 1 and 2 SDs from its mean value is 0.2718

4 0
3 years ago
Kiara downloaded 264 pictures from her cell phone to her computer. These pictures took up 528 megabytes of space on her computer
trapecia [35]

Hello!


Divide 528 and 264. It will give you 2.


Now, multiply 35 and 2.


Answer: 70


Hope this helps! ~Pooch ♥

3 0
3 years ago
Other questions:
  • Mulitiply 6 1/4x3 3/5=
    7·1 answer
  • What's the cost of the # of cookies?
    5·2 answers
  • A British company is sending you measurements for a table to build in your factory. The table top must be 50 cm × 75 cm. Your ma
    8·1 answer
  • Describe the dimension of a line
    12·2 answers
  • There are 48 cards in a deck and each card is. Either red or black 8 red cards are taken out find the ratio of red to black card
    12·1 answer
  • Triangle XYZ is located in the first quadrant of the coordinate plane. If this triangle is
    15·1 answer
  • Can someone help me on 6 or 7 (40 points)
    14·2 answers
  • If you had 1 billion dollars all in $100 dollar bills, how many times could they
    8·1 answer
  • I need answers asap I believe it’s 24 not sure tho
    9·1 answer
  • Find the x-value and the y-value of the solution to this system of equations:
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!