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
kvv77 [185]
1 year ago
8

I need to solve this to get zero can you help?

Mathematics
1 answer:
Alex1 year ago
7 0

Given a right triangle with the side lengths of legs = 9 and 13

For the required angle :

opposite side = 9

adjacent side = 13

so,

\begin{gathered} \tan \theta=\frac{opposite}{adjacent}=\frac{9}{13} \\  \\ \theta=\tan ^{-1}\frac{9}{13}=34.7 \end{gathered}

You might be interested in
Lynn has a watering can that holds 16 cups of water, and she fills it half full. Then she waters her 23 plants so that each plan
34kurt

Answer:

8/23 cups of water for each plant. (Approx. 0.35 cups for each plant)

(I do hope this is correct)

Step-by-step explanation:

Since Lynn only filled half of her watering can full, it is now holding 8 cups pf water, since 16/2=8. Then, if she water each of her 23 plants equally, so each plan will supposedly get 8/23 cups of water.

3 0
4 years ago
What is the value of f(7)
Lelu [443]

Answer:

7<em><u>f</u></em>

Step-by-step explanation:

You move 7 to the left of <em>f. </em>

This makes the exact value of <em>f</em>(7),  7<em>f</em>.

8 0
4 years ago
Darren wants to estimate the mean age in a population of trees. He'll sample nnn trees and build a 90\%90%90, percent confidence
Alchen [17]

Using the z-distribution, as we have the standard deviation for the population, it is found that the smallest sample size required to obtain the desired margin of error is of 77.

<h3>What is a z-distribution confidence interval?</h3>

The confidence interval is:

\overline{x} \pm z\frac{\sigma}{\sqrt{n}}

In which:

  • \overline{x} is the sample mean.
  • z is the critical value.
  • n is the sample size.
  • \sigma is the standard deviation for the population.

The margin of error is given by:

M = z\frac{\sigma}{\sqrt{n}}

In this problem, we have that the parameters are given as follows:

M = 3, z = 1.645, \sigma = 16.

Hence, solving for n, we find the sample size.

M = z\frac{\sigma}{\sqrt{n}}

3 = 1.645\frac{16}{\sqrt{n}}

3\sqrt{n} = 1.645 \times 16

\sqrt{n} = \frac{1.645 \times 16}{3}

(\sqrt{n})^2 = \left(\frac{1.645 \times 16}{3}\right)^2

n = 76.97

Rounding up, the smallest sample size required to obtain the desired margin of error is of 77.

More can be learned about the z-distribution at brainly.com/question/25890103

4 0
2 years ago
What is the value of x?
Andru [333]

I'm sure you know the formula for Pythagoras Theorem.

The formula is a^{2} +b^{2} = c^{2}

C = Your hypotenuse

A + B = The other two adjacent sides.  

So you plug in the numbers

33^{2} + b^{2} =65^{2}

And you'll get the answer, which is 56.  

6 0
4 years ago
Read 2 more answers
Which angel is a right angle (Choose One)(100 Points)
lorasvet [3.4K]

\huge\mathsf\blue{Answer}:-

Hey mate,

Attachment 3 is a right angle because a right angle makes a straight line ( 90 degree angle)

that's why it's a right angle

<h3>plz mark me as brainliest </h3>
7 0
3 years ago
Read 2 more answers
Other questions:
  • 5x - 2 = 10 - X<br> Please help
    12·2 answers
  • A football team received 2 penalties for 15 yards each, 7 penalties for 5 yards each and 1 penalty for 19 yards. Write and find
    15·1 answer
  • Find all x intercepts y intercepts BRANLIEST ASAP TY​
    12·1 answer
  • Frank is entering college and is trying to decide between a business major and a liberal arts major. He decides to conduct a ran
    8·2 answers
  • Drag a number into each line to create an equation that is true for all values of x
    12·1 answer
  • The cost of coffee is determined by the type of coffee beans that are mixed together. The cost of a local mix of Arabica and Rob
    14·1 answer
  • A parabola is given by the equation y = x2 + 4x + 4.
    9·1 answer
  • James invests some money into an account that pays 4% compounded annually. If the account has $851.66 after 5 years, how much di
    15·1 answer
  • An arithmetic sequence has this recursive formula: a1=8 an=an-1-6 what is the explicit formula for this sequence
    6·2 answers
  • A cube has a volume of 343 3. What is the length of one of the edges of the cube?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!