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
Artemon [7]
3 years ago
7

Please help me with this im really stuck​

Mathematics
1 answer:
makvit [3.9K]3 years ago
3 0
THE ANSWER IS: y = -x+9

y=mx+b
m=slope=(y2-y1)/(x2-x1)
use the points (0,9) and (9,0)
(0-9)/(9-0) = -9/9 = -1
so m=-1

b is the y-intercept which is where x=0
the line crosses the y axis at y=9
so b=9

plugging in m and b into y=mx+b,
you get y=-x+9
You might be interested in
Divide 32x3+48x2-40x by 8x
gregori [183]

Answer:16.5

Step-by-step explanation:

6 0
2 years ago
How many packages of diapers can you buy with $40 if one package costs $8? write and solve the equation. show that your answer i
katrin [286]
You would be able to buy 5 packages 5×8=40 and 40÷8=5
7 0
3 years ago
What is the output of the function f(x) = x + 21 if the input is 4? When the input is 4, the output of f(x) = x + 21 is
notka56 [123]
To find the output when you know the input, just plug the input into the function.

x+21=4+21=25

The output is 25.

Hope this helps!
8 0
3 years ago
Read 2 more answers
What are the solutions of x2=-5+8
AveGali [126]

Answer:

x² = -5 + 8

x² = 3

x  = √3 ≈ 1.73

5 0
3 years ago
A random sample of 25 glass sheets is obtained and their thicknesses are measured. The sample mean is x= 3.54 mm and sample stan
lisabon 2012 [21]

Answer: (3.46, 3.62)

Step-by-step explanation:

The formula to find the confidence interval for population mean is given :-

\overline{x}\ \pm\ t_{\alpha/2}\dfrac{s}{\sqrt{n}}

, where n = sample size.

t_{\alpha/2} = Two-tailed t-value for significance level of (\alpha) and degree of freedom df= n-1.

s = sample standard deviation.

As per given , we have

\overline{x}= 3.54 mm

s= 0.20 mm

n= 25

Significance level =\alpha=1-0.95=0.05

Since population standard deviation is not given , it means the given problem has t- distribution.

Two-tailed t-value for significance level of (0.05) and degree of freedom df= 24:

t_{\alpha/2\ ,df}=t_{0.025,\ 24}=2.0639

95% Confidence interval for population mean:

3.54\ \pm\ (2.0639)\dfrac{0.20}{\sqrt{25}}

=3.54\ \pm\ (2.0639)\dfrac{0.20}{5}

=3.54\ \pm\ (2.0639)(0.04)

=3.54\ \pm\ 0.082556

=(3.54- 0.082556,\ 3.54+ 0.082556 )=(3.457444,\ 3.622556)\approx(3.46,\ 3.62)

Hence, the 95% two-sided confidence interval for the mean glass thickness = (3.46, 3.62)

7 0
3 years ago
Other questions:
  • Which of the following is the equation for the graph shown?
    11·1 answer
  • Determine the cost of 5 pounds of bananas if 2 pounds cost $1.16
    14·2 answers
  • Calling all mathemeticians
    12·2 answers
  • What is the fraction in between 1/2<, <4/5
    12·1 answer
  • Plz help its a test<br><br> It will help a lot
    6·1 answer
  • Can u help with 8 and 10? And check the rest??
    10·2 answers
  • Write 23 in significant notation​
    7·2 answers
  • HELP WILL MARK BRAINLIEST
    10·1 answer
  • an arts academy requires there to be 4 teachers for every 64 students and 3 tutors for every 33 students. how many students does
    8·2 answers
  • You and your friend are sharing 3/8 of a bag of candy how much of the bag will each of you get share it evenly. Is it going to b
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!