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
ddd [48]
3 years ago
13

Trigonometry question! find y. round to the nearest tenth!​

Mathematics
1 answer:
tresset_1 [31]3 years ago
7 0

Answer:

<h2>y = 242.4 ft</h2>

Step-by-step explanation:

Look at the picture.

Use sine:

sine=\dfrac{opposite}{hypotenuse}

We have a measure of the angle and length of the hypotenuse:

\alpha=29^o,\ hypotenuse=500\ ft

\sin29^o\approx0.48481

Substitute:

\dfrac{y}{500}=0.48481              <em>multiply both sides by 500</em>

y=242.405\to y\approx242.4

You might be interested in
Jaime earned some money mowing the neighbor's lawn. He spent one-fourth of his money to take his friends to see a movie. Then he
steposvetlana [31]

The answer is 104.

1/4 of 104 is 26, 104 - 26 = 78

78 - 7 = $71

3 0
3 years ago
Drag the correct steps into order to solve the equation -7x + 14 = 56 for x.
Lina20 [59]

Answer:

-7x + 14 = 56

Subtract 14 both sides

-7x + 14 - 14 = 56 - 14

-7x = 42

Divide both sides by -7

(-7x)/(-7) = 42/(-7)

x = -6

3 0
3 years ago
Read 2 more answers
What is the answer to 2/5x+3/7=1-4/7x
skelet666 [1.2K]
X=10/17 thats ur answer

7 0
3 years ago
Increase 270 by 20%​
Nana76 [90]

Answer:

first find 20 percent of 270

270 times 20 divided by 100

5400 divided by 100

54

270 plus 54

324 is your final answer

-hope this helps!

5 0
3 years ago
Read 2 more answers
A machine that fills beverage cans is supposed to put 12 ounces of beverage in each can. The standard deviation of the amount in
erica [24]

Answer:

\chi^2 =\frac{10-1}{0.0144} 0.0217 =13.54

The degrees of freedom are:

df=n-1=10-1=9

Now we can calculate the p value using the alternative hypothesis:

p_v =2*P(\chi^2 >13.54)=0.279

Since the p value is higher than the signficance level assumed of 0.05 we have enough evidence to FAIL to reject the null hypothesis and there is no evidence to conclude that the true deviation differs from 0.12 ounces

Step-by-step explanation:

Assuming the following data:"12.14 12.05 12.27 11.89 12.06

12.14 12.05 12.38 11.92 12.14"

We can calculate the sample deviation with this formula:

s =\sqrt{\frac{\sum_{i=1}^n (X_i -\bar X)^2}{n-1}}

n=10 represent the sample size

\alpha=0.05 represent the confidence level  

s^2 =0.0217 represent the sample variance

\sigma^2_0 =0.12^2= 0.0144 represent the value to verify

Null and alternative hypothesis

We want to determine whether the standard deviation differs from 0.12 ounce, so the system of hypothesis would be:

Null Hypothesis: \sigma^2 = 0.0144

Alternative hypothesis: \sigma^2 \neq 0.0144

The statistic can be calculated like this;

\chi^2 =\frac{n-1}{\sigma^2_0} s^2

\chi^2 =\frac{10-1}{0.0144} 0.0217 =13.54

The degrees of freedom are:

df=n-1=10-1=9

Now we can calculate the p value using the alternative hypothesis:

p_v =2*P(\chi^2 >13.54)=0.279

Since the p value is higher than the signficance level assumed of 0.05 we have enough evidence to FAIL to reject the null hypothesis and there is no evidence to conclude that the true deviation differs from 0.12 ounces

7 0
3 years ago
Other questions:
  • Order the numbers from least to greatest. 7.6, 7 8/21, 7 4/5, 7 2/3, 7.71
    5·2 answers
  • What is the value of 6n - 2 when n = 3?12<br> 16<br> 12 7 6
    15·1 answer
  • The length of a classroom is 34 feet. What is the measurement in yards and feet
    11·2 answers
  • Where can the medians of a triangle intersect?
    12·1 answer
  • Jeffrey earns a gross semimonthly salary of $2181.80.
    5·2 answers
  • Supplementary angles
    13·1 answer
  • Does it pay to ask for a raise? A national survey of heads of households showed the percentage of those who asked for a raise an
    6·1 answer
  • 4 months to 8 years in ratio
    11·2 answers
  • What is 246,588 rounded to the ten thousands place?
    10·1 answer
  • Sarah cuts a piece of rope that is 4.5 feet long.
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!