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
zhenek [66]
2 years ago
9

Can someone help me please

Mathematics
2 answers:
Lunna [17]2 years ago
8 0

Answer:

x+54°=90° ( Given)

x=36°

x+y°=90°

y=90°-36°

y=54°

Hope this help!

Elza [17]2 years ago
6 0
X equals 36 while y equals 54
You might be interested in
A dinner plate has a circumference of 106.76 cm. What is the area of the dinner plate? Use = 3.14.
Sphinxa [80]
C=2pr,  r=c/(2p)

a=pr^2, using r found above we get:

a=p(c^2/(4p^2))

a=(c^2)/(4p), since c=106.76 and we approximate pi as 3.14

a=(106.76^2)/(4*3.14)

a=11612.2176/12.56 cm^2

a≈924.54 cm^2  (to nearest one-hundredth of a square cm)
3 0
3 years ago
6th grade math help me pleaseeee
Anastasy [175]

Answer:

10 z

Step-by-step explanation:

Hope this helped :)

8 0
3 years ago
In the past, the average age of employees of a large corporation has been 40 years. Recently, the company has been hiring older
Viktor [21]

Answer:

p_v =P(t_{(63)}>2.5)=0.0075  

If we compare the p value and the significance level given \alpha=0.05 we see that p_v so we can conclude that we have enough evidence to fail reject the null hypothesis, so we can conclude that the mean age is significantly higher than 45 years at 5% of significance.  

Step-by-step explanation:

1) Data given and notation  

\bar X=45 represent the mean height for the sample  

s=16 represent the sample standard deviation for the sample  

n=64 sample size  

\mu_o =40 represent the value that we want to test

\alpha=0.05 represent the significance level for the hypothesis test.  

t would represent the statistic (variable of interest)  

p_v represent the p value for the test (variable of interest)  

State the null and alternative hypotheses.  

We need to conduct a hypothesis in order to check if the mean age is higher than 40 years, the system of hypothesis would be:  

Null hypothesis:\mu \leq 40  

Alternative hypothesis:\mu > 40  

If we analyze the size for the sample is < 30 and we don't know the population deviation so is better apply a t test to compare the actual mean to the reference value, and the statistic is given by:  

t=\frac{\bar X-\mu_o}{\frac{s}{\sqrt{n}}}  (1)  

t-test: "Is used to compare group means. Is one of the most common tests and is used to determine if the mean is (higher, less or not equal) to an specified value".  

Calculate the statistic

We can replace in formula (1) the info given like this:  

t=\frac{45-40}{\frac{16}{\sqrt{64}}}=2.5    

P-value

The first step is calculate the degrees of freedom, on this case:  

df=n-1=64-1=63  

Since is a one right tailed test the p value would be:  

p_v =P(t_{(63)}>2.5)=0.0075  

Conclusion  

If we compare the p value and the significance level given \alpha=0.05 we see that p_v so we can conclude that we have enough evidence to fail reject the null hypothesis, so we can conclude that the mean age is significantly higher than 45 years at 5% of significance.  

6 0
3 years ago
How many quarters are there in thirty dollars
Olenka [21]
Idk becuase i searched it up and got one fourth
7 0
3 years ago
Read 2 more answers
The answer is A right?
Sophie [7]

Answer:

C. 42

Step-by-step explanation:

<em>PEMDAS</em>

1. Parentheses: (4 + 2) = <em>6</em>

6² + 3 • 2

2. Exponents: 6² = <em>36</em>

36 + 3 • 2

3. Multiplication/Division: 3 • 2 = <em>6</em>

36 + 6

4. Addition/Subtraction: 36 + 6 = <em>42</em>

42

4 0
3 years ago
Other questions:
  • the 6:00 am temperatures for four consecutive days in the town of lincoln were -12.1 celcius, -7.8 celcius, -14.3 celcius, and -
    11·1 answer
  • Bob the snail travels 48 cm at 16 cm per minute how long did it take him<br><br> please explain
    9·1 answer
  • For each table, determine whether the relationship is a linear function. Then represent the relationship using words, an equatio
    7·1 answer
  • The perimeter of a pool table is about 7.8m. four times the length equals nine times the width. What are the dimensions of the t
    6·1 answer
  • Solve the following equation
    6·1 answer
  • A family eats at a restaurant. The bill is $56.75. They are pleased with service so they leave 22% tip. What is their total afte
    15·1 answer
  • The volume of Pyramid A is 704 cm3 and the volume of Pyramid B is 297 cm3. If the pyramids are similar and the surface area of P
    9·1 answer
  • For every 20 grams of fat, 180 calories are added to a serving size of food.
    13·1 answer
  • H(x) = x -2<br> g(x) = 2x² – 3x<br> Find h(g(-2))
    7·2 answers
  • 100 Points | Giving Brainliest to correct answer | Reporting false answers |
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!