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
Tema [17]
3 years ago
14

Explain how you know if a system of equations has one solution, no solutions, or infinitely many solutions. Write your answers (

3) in Complete Sentences.
Mathematics
1 answer:
Nataliya [291]3 years ago
7 0

Answer:

Written Below.

Step-by-step explanation:

A system of linear equations has one solution when the graphs intersect at a point. A system of linear equations has no solution when the graphs are parallel. A system of linear equations has infinite solutions when the graphs are the exact same line.

(This uses graphing.)

Sidenote: I hope this helps! :)

You might be interested in
Giving brainliest to whomever answers correctly!​
Dvinal [7]

Answer:

B: A systematic random sample

Step-by-step explanation:

Systematic sampling is a type of probability sampling in which members of a larger population are chosen at random from a larger population but at a fixed, periodic interval. This interval, also known as the sampling interval, is calculated by dividing the population size by the sample size desired. Despite the fact that the sample population is chosen in advance, systematic sampling is still considered random if the periodic interval is set in advance and the starting point is chosen at random.

Hope this helps and if it does, don't be afraid to give my answer a "Thanks" and maybe a Brainliest if it's correct?  

6 0
3 years ago
A sprinkler system is being installed in a newly renovated building on campus. The average activation time is supposed to be at
melomori [17]

Answer:

A) t = 1.73

B) p-value =  0.0558

C) Data is not statistically significant because the p-value of 0.0558 is more than the significance value of 0.05

D) The decision means that the design specifications are not met.

E) Type II error

Step-by-step explanation:

The hypotheses are:

H₀: μ = 20

H₁: μ > 20

A) Formula for the test statistic is;

t = (x' - μ)/(s/√n)

Now, we are given;

x' = 21.5

μ = 20

s = 3

n = 12

Thus;

t = (21.5 - 20)/(3/√12)

t = 1.73

B) we have our t-value as 1.73

Now, Degree of freedom(DF) = n - 1

So,DF = 12 - 1 = 11

Using significance level of α = 0.05, t-value = 1.73 and DF = 11, one tailed hypothesis, from online P-value calculator attached, we have;

p-value =  0.0558

C) Data is not statistically significant because the p-value of 0.0558 is more than the significance value of 0.05

D) We will not reject the null hypothesis. The decision means that the design specifications are not met.

E) If the true average activation time of the sprinkler system is, in fact, equal to 20 seconds, then the null hypothesis is false.

Since we did not reject the null hypothesis even though it is false, the error that was committed was therefore a type II error.

4 0
3 years ago
Select the correct answer.<br> Find the Inverse of function A<br> F(x)=1/3 -1/2x
kompoz [17]

Answer:

If you actually meant f(x)=2x+3x−1 ,

then note it can be rewritten as:

f(x)=2x−2+5x−1=2+5x−1=y

At this point you can find x in terms of y (“make x the subject”):

y−2=5x−1⟹1y−2=x−15

⟹x=5y−2+1=y+3y−2

Switch variables back to x, and you have the inverse function of f:

g(x)=x+3x−2

How do you know you’ve calculated correctly? The composition of f with g should result in x — that is, evaluate f(g) and you should get the result x:

7 0
2 years ago
How do you solve <br> Given: m Prove: m
Citrus2011 [14]
We need more info to solve sorry
4 0
3 years ago
Find the quotient. Simplify your answer.
brilliants [131]

Let's see

\\ \rm\Rrightarrow \dfrac{s+1}{s^2+1}\div \dfrac{s^2}{6s^2}

\\ \rm\Rrightarrow \dfrac{s+1}{s(s+1)}\div\dfrac{1}{5s^2}

\\ \rm\Rrightarrow \dfrac{1}{s}\times{5s^2}

\\ \rm\Rrightarrow \dfrac{5s^2}{s}

\\ \rm\Rrightarrow 5s

8 0
1 year ago
Other questions:
  • From a boat on the lake, the angle of elevation to the top of a cliff 35 degrees 12'. If the base of the cliff is 2335 feet from
    7·1 answer
  • Think of a number, double it and then subtract 10, the answer is -27 white an equation and solve
    9·1 answer
  • What is the complete factorization of the polynomial below?
    11·2 answers
  • Find the distance between the points: (-3, -4) and (5, 5)
    9·1 answer
  • Pam’s annual gross pay is $48,000. If she is paid biweekly, what is her gross pay on each pay check?
    11·1 answer
  • Bisi leaves 5km from school. She walks 1km at 4km/h and travels the rest of the way by bus at 16km/h . what is the average speed
    7·1 answer
  • 19+7÷2-5 by including one pair of brackets to amke the total value equal to 8<br><br><br>​
    10·1 answer
  • Helppp plzzzz...also give steps..plz
    14·2 answers
  • Solve the inequality 2(x-3)-5x&lt;9
    11·2 answers
  • Fill in each blank with a true statement. . 4. IF ZAS ZB and the supplement of ZB has measure 22°, then ZA =
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!