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
fiasKO [112]
4 years ago
15

HELP

Mathematics
1 answer:
xxTIMURxx [149]4 years ago
6 0
The pythagorean theorem states that a^2+b^2=c^2.
3^2 is 9. 
9+9=18
The square root of 18 is approximately 4.24.
a. \sqrt{18}
b. 3 \sqrt{2}
c.4.24
You might be interested in
A book claims that more hockey players are born in January through March than in October through December. The following data sh
astra-53 [7]

Answer:

\chi^2 = \frac{(67-47.5)^2}{47.5}+\frac{(56-47.5)^2}{47.5}+\frac{(30-47.5)^2}{47.5}+\frac{(37-47.5)^2}{47.5}=18.295

Now we can calculate the degrees of freedom for the statistic given by:

df=(categories-1)=4-1=3

And we can calculate the p value given by:

p_v = P(\chi^2_{3} >18.295)=0.00038

Since the p value is very low we have enough evidence to reject the null hypothesis and we can conclude that the players' birthdates are not uniformly distributed throughout the​ year

Step-by-step explanation:

We need to conduct a chi square test in order to check the following hypothesis:

H0: There is no difference of birthdates distributed throughout the​ year

H1: There is a difference between birthdates distributed throughout the​ year

The level of significance assumed for this case is \alpha=0.05

The statistic to check the hypothesis is given by:

\sum_{i=1}^n \frac{(O_i -E_i)^2}{E_i}

The table given represent the observed values, we just need to calculate the expected values with the following formula E_i = \frac{total}{4}

And replacing we got:

E_{1} =\frac{67+56+30+37}{4}=47.5

And now we can calculate the statistic:

\chi^2 = \frac{(67-47.5)^2}{47.5}+\frac{(56-47.5)^2}{47.5}+\frac{(30-47.5)^2}{47.5}+\frac{(37-47.5)^2}{47.5}=18.295

Now we can calculate the degrees of freedom for the statistic given by:

df=(categories-1)=4-1=3

And we can calculate the p value given by:

p_v = P(\chi^2_{3} >18.295)=0.00038

Since the p value is very low we have enough evidence to reject the null hypothesis and we can conclude that the players' birthdates are not uniformly distributed throughout the​ year

3 0
4 years ago
Which object has a GREATER unit rate of change as shown in the graph?
AURORKA [14]

Answer: A

Step-by-step explanation:

5 0
3 years ago
How can i solve that equation
forsale [732]

Answer:

C and E

Step-by-step explanation:

3 \tan( \beta )  = 2.  \:  \:  \:  \:  \tan( \beta )  =  \frac{2}{3}

\frac{h}{x}  =  \tan( \beta )  =  \frac{2}{3}

if \:  \: h = 2 \:  \:  \: x = 3 \:  \:  \: and \:  \:  \: t =  \sqrt{ {h}^{2} + x }

C. t =  \sqrt{13} ✅

○♧○♧○♧○♧○♧○♧○♧○♧○♧○♧○♧○

if \: \: \: h = 4 \:  \:  \:  \: x = 6 \:  \:  \: and \:  \:  \: t =  \sqrt{ {h}^{2}  +  {x}^{2} }

E. t = 2 \sqrt{13} ✅

8 0
3 years ago
Blake is working to find the slope given 2 points.
adelina 88 [10]

Answer:

-1/2

Step-by-step explanation:

The slope is

7 0
3 years ago
Ercicio #9
BlackZzzverrR [31]

si te entiendo pero no se como aser eso

8 0
3 years ago
Other questions:
  • How much did Elizabeth invest?
    12·2 answers
  • A student's course grade is based on one midterm that counts as 5% of his final grade, one class project that counts as 10% of h
    13·1 answer
  • The Triangle Inequality Theorem states that the sum of the measures of any two sides of a triangle is _________ the measure of t
    11·1 answer
  • The sum of the digits is 11. When rounded to the nearest hundred, it's 500. Rounding to the nearest 10 makes it 530. What's the
    12·2 answers
  • What number is 32% of 75?
    5·2 answers
  • What is 40/90 simplified?
    14·1 answer
  • What is the volume for the cone
    9·2 answers
  • The sum of two numbers is 70. One number is ten more than twice the other number. Find the numbers.​
    5·1 answer
  • Will give brainliest!
    13·1 answer
  • Describe in words a sequence of transformations that maps ABC to A' B' C
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!