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
zepelin [54]
3 years ago
11

PLEASE PLEASE PLEASE HELP ​

Mathematics
1 answer:
aksik [14]3 years ago
5 0

Answer: X- 0,1,2,3,4 and Y-0,6,12,18,24

Step-by-step explanation: i had to take this test ): luck

You might be interested in
Find the area of rectangle ,semicircle and the figure​
ExtremeBDS [4]

Step-by-step explanation:

Srectangle=21*30=630cm^2

Ssemicircle=(11.5^2*pi)/2=132.25pi/2=66.125cm^2*pi

Sfigure=630cm*2+2*66.125cm^2*pi=630cm^2+pi*132.25pi

if we assume that pi=3.14

Sfigure=630cm^2+415.265cm^2=1045.265cm^2

3 0
3 years ago
What is an equation of the line that passes through the points (- 2, 1) and (- 8, 4) ?
Fantom [35]

Answer:

y=-x/2

Step-by-step explanation:

m=(4-1)/(-8-(-2))

m=3/-6

m=-1/2

b=y-mx

b=1-(-1/2*(-2))

b=1-1

b=0

y=-x/2

7 0
3 years ago
3y-y+8-2=20<br> combine like terms and solve
Flauer [41]
3y - y + 8 - 2 = 20
3y - y = 2y
8 - 2 = 6
2y + 6 = 20
2y = 20 - 6
y = 10 - 3
the answer is: y = 7
4 0
3 years ago
An investigator thinks that people under the age of forty have vocabularies that are different than those of people over sixty y
Kay [80]

Answer:

t=\frac{(14-20)-0}{\sqrt{\frac{5^2}{31}+\frac{6^2}{31}}}}=-4.28  

Now we can calculate the p value with the following probability:

p_v =2*P(t_{60}  

The p value is a very low value so then we have enough evidence to reject the null hypothesis and we can conclude that people under the age of forty have vocabularies that are different than those of people over sixty years of age.

Step-by-step explanation:

Information given

\bar X_{1}=14 represent the mean for sample 1 (younger)

\bar X_{2}=20 represent the mean for sample 2 (older)  

s_{1}=5 represent the sample standard deviation for 1  

s_{f}=6 represent the sample standard deviation for 2  

n_{1}=31 sample size for the group 2  

n_{2}=31 sample size for the group 2  

t would represent the statistic

System of hypothesis

We want to test if  that people under the age of forty have vocabularies that are different than those of people over sixty years of age, the system of hypothesis are:

Null hypothesis:\mu_{1}-\mu_{2}=0  

Alternative hypothesis:\mu_{1} - \mu_{2}\neq 0  

The statistic is given by:

t=\frac{(\bar X_{1}-\bar X_{2})-\Delta}{\sqrt{\frac{\sigma^2_{1}}{n_{1}}+\frac{\sigma^2_{2}}{n_{2}}}} (1)  

And the degrees of freedom are given by df=n_1 +n_2 -2=31+31-2=60  

Replacing the info given we got:

t=\frac{(14-20)-0}{\sqrt{\frac{5^2}{31}+\frac{6^2}{31}}}}=-4.28  

Now we can calculate the p value with the following probability:

p_v =2*P(t_{60}  

The p value is a very low value so then we have enough evidence to reject the null hypothesis and we can conclude that people under the age of forty have vocabularies that are different than those of people over sixty years of age.

6 0
3 years ago
Write two word phrases for t+23
bixtya [17]
For a sum of a number t and 23
t plus 23

8 0
3 years ago
Other questions:
  • Find the value of 9-6(8-5)+(-3)
    11·1 answer
  • What’s 8x squared + 4 in vertex form
    7·1 answer
  • 6 - 1 * 16 + 21 ÷ 3 <br><br> Please help !!
    14·1 answer
  • Davis used a drawing and a scale factor of 4 to design his triangular yard. The area of the yard is 400 ft². He wants to find th
    10·1 answer
  • Four Friends decided to host the grand opening of their bar on St. Patrick’s Day. They built their bars at different distances f
    12·1 answer
  • 3. Leo wants to paint a mural that covers
    9·1 answer
  • Function g is represented by the graph. For what input value or values is g (x) = 4?
    11·1 answer
  • Instructions: Find the missing side lengths. Leave your answers as radicals in simplest form.
    6·1 answer
  • PLS HELP I HAVE LIMITED TIME PLEASE GUYS
    14·1 answer
  • Change 288 square inches to feet
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!