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
Bas_tet [7]
2 years ago
11

Subtract -3n^2 from -7n^2

Mathematics
1 answer:
Sergeeva-Olga [200]2 years ago
5 0

Answer: 4n^2

Step-by-step explanation: -3n^2 - (-7n^2) = -3n^2 + 7n^2= 4n^2. When adding and subtracting the exponents stay the same only the coefficients are subtracted or added

You might be interested in
Suppose that an experiment consists of flipping a coin 3 times and observing the resulting sequence of heads and tails. Find the
ki77a [65]

Using the binomial distribution, it is found that there is a 0.125 = 12.5% probability of observing exactly 3 tails.

<h3>What is the binomial distribution formula?</h3>

The formula is:

P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}

C_{n,x} = \frac{n!}{x!(n-x)!}

The parameters are:

  • x is the number of successes.
  • n is the number of trials.
  • p is the probability of a success on a single trial.

In this problem, considering 3 tosses of a fair coin, the parameters are n = 3 and p = 0.5.

The probability of 3 tails is P(X = 3), hence:

P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}

P(X = 3) = C_{3,3}.(0.5)^{3}.(0.5)^{0} = 0.125

0.125 = 12.5% probability of observing exactly 3 tails.

More can be learned about the binomial distribution at brainly.com/question/24863377

3 0
2 years ago
Which is an equation of the line that passes through the point (8,7) and is perpendicular to the line whose equation is y = 4x-1
algol [13]

Answer:

Y = -1/4x + 5

Step-by-step explanation:

7 0
2 years ago
Integers from 1 to 50
aivan3 [116]
...every number between 1 and 50 is an integer
6 0
2 years ago
during normal sleep, a bears heart beats about 50 times a minute. in its deepest state of hibernation a bears heart may beat 50
Stels [109]

The bear beats its heart 50/6 times a minute during deep hibernation.

Thats 12 times a minute

45minutes x 12 times a minute

45x12 = 540

Answer: 540 times

5 0
3 years ago
Read 2 more answers
he coordinate grid shows the graph of four equations: A coordinate grid is shown from negative 12 to positive 12 on the x axis a
denis23 [38]

The set of equation that is known to have 5 and 0 as solutions is A and B.

<h3>How to solve for the system of equations.</h3>

From the graph that we have here in this question, we are supposed to identify the equations that have this point.

We can do this by tracing the lines in order to locate 5 and 0 on the grid.

When we trace the bine that has 5 and 0, We would find out that it is traceable to A and B.

Read more on graphs here:

brainly.com/question/10465970

#SPJ1

6 0
2 years ago
Other questions:
  • How are the values of the two 4s related in .044
    9·2 answers
  • Jacob figured out that he could change the zero of a linear equation by changing its slope. If the slope in the equation y = 2x
    10·2 answers
  • A vine maple grows fast when it is planted under the cover of cedar trees. One month after it is planted it has grown 12 inches,
    11·1 answer
  • Which of the following numbers is between 3/5 and 5/7
    6·1 answer
  • Please answer and if right i will mark brainliest
    9·1 answer
  • An angle measures 40° more than the measure of its complementary angle. What is the measure of each angle?
    6·2 answers
  • For some integer q, Every odd integer is of the form<br><br>(a) q (b) q+1 (c) 2q (d) 2q+1​
    13·1 answer
  • Find (fog)(x) and (gof)(x) f(x) = 8x-5, g(x) = 10 - 2x<br><br><br><br><br>help please ​
    6·1 answer
  • How are algebraic properties applied in the steps to solving equations?
    5·1 answer
  • Image below, wont let me copy
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!