a student wants to measure the height of a tree. from a point on the ground 10 feet away from the base of the tree, the angle of elevation to the top of the tree is 65angle. what is the height of the tree to the nearest tenth of a foot?

Answers

Answer 1

Answer:

Step-by-step explanation:

Use SOH CAH TOA to recall how the trig functions fit on a triangle

SOH: Sin(Ф)= Opp / Hyp

CAH: Cos(Ф)= Adj / Hyp

TOA: Tan(Ф) = Opp / Adj

Tan(65) = Opp / 10

10* Tan(65) = Opp

21.445 = Opp

so the height of the tree is approx  21.4 feet ( to the nearest 10th )


Related Questions

20. Find the equation of the straight line bisercting the line joining the points (3,4) and(5,6) if it
slope is 2​

Answers

Answer:

pretty sure the answer is  x - y - 1 = 0

on the grid, which point is located in the quadrant where the x-coordinate is a negative number and the y- coordinate is a positive number¿​

Answers

Answer:

b

Step-by-step explanation:

because if you look at it the x-coordinate is -6 and the y-coordinate is positive 4

Can Yall help with the question

Answers

Answer:

A. Transform Boundary

Step-by-step explanation:

Transform boundaries are places where plates slide sideways past each other

Divergent Boundaries occur  when two tectonic plates move away from each other

Convergent Boundaries are when both the plates collide into each other

Subduction boundaries are when one plate bends and slides underneath the other curving down into the mantle

Hope this helps dude

Answer: no learn it urseld caca haha

Step-by-step explanation:

What is the sum of the rational expressions 2x+7/x+5+x-3/x+5
A 3x+10/x+5
B 3x+10/2x+10
C 3x+4/x+5
D3x+4/2x+10

Answers

Answer:

=3x+{4}{x}+10

Step-by-step explanation:

The sum of the rational expression is =3x+{4}{x}+10

Data from a representative sample were used to estimate that 31% of all computer users in a recent year had tried to get on a Wi-Fi network that was not their own in order to save money. You decide to conduct a survey to estimate this proportion for the current year. What is the required sample size if you want to estimate this proportion with a margin of error of 0.05

Answers

Answer:

The required sample size is 329.

Step-by-step explanation:

In a sample with a number n of people surveyed with a probability of a success of [tex]\pi[/tex], and a confidence level of [tex]1-\alpha[/tex], we have the following confidence interval of proportions.

[tex]\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}[/tex]

In which

z is the zscore that has a pvalue of [tex]1 - \frac{\alpha}{2}[/tex].

The margin of error is:

[tex]M = z\sqrt{\frac{\pi(1-\pi)}{n}}[/tex]

31% of all computer users in a recent year had tried to get on a Wi-Fi network that was not their own in order to save money.

This means that [tex]\pi = 0.31[/tex]

Confidence level is not given, so we assume 95%.

95% confidence level

So [tex]\alpha = 0.05[/tex], z is the value of Z that has a pvalue of [tex]1 - \frac{0.05}{2} = 0.975[/tex], so [tex]Z = 1.96[/tex].

What is the required sample size if you want to estimate this proportion with a margin of error of 0.05?

We need a sample size of n. n is found when M = 0.05. So

[tex]M = z\sqrt{\frac{\pi(1-\pi)}{n}}[/tex]

[tex]0.05 = 1.96\sqrt{\frac{0.31*0.69}{n}}[/tex]

[tex]0.05\sqrt{n} = 1.96\sqrt{0.31*0.69}[/tex]

[tex]\sqrt{n} = \frac{1.96\sqrt{0.31*0.69}}{0.05}[/tex]

[tex](\sqrt{n})^2 = (\frac{1.96\sqrt{0.31*0.69}}{0.05})^2[/tex]

[tex]n = 328.6[/tex]

Rounding up

The required sample size is 329.

What is the solution to this addition sentence?

3/4 + (-1/2) = _____

Answers

Answer:

1/4

Step-by-step explanation:

-1/2 in to -2/4

3/4+(-2/4)=1/4

The answer is 1/4th
I guess so

What is the electric field strength at a distance of 15 cm from a point charge that has 12
microcoulombs?

Please help

Answers

the formula is E= kQ/ d^2

k is 9x10^9
i changed 15 cm to 0.15 m

=> 9x10^9 x 12 OVER (0.15)^2

the answer is 4.8x10^12 N/C

but this is the electric field.

to find electric field STRENGTH, it’s E= F/q and you did not give a value for the force

2) Solve the equation 6d = 42. Choose the correct answer.

d=7
d=9
d = 12

Answers

the answer is 7, because if you multiple 6 by 7 you got 42

Answer:

d=7

Step-by-step explanation:

divide both sides by 6

6d=42

d=42/6

d=7

(1/4)^3
pls help me im at home and dont know this lol

Answers

The answer is 1/64
Basically you’re multiplying everything in the parentheses 3 times. So 1^3=1 & 4^3=64. Which makes it 1/64.

Which of the following functions has the same horizontal asymptote as the function graphed below?

Answers

Answer:

In most cases, there are two types of functions that have horizontal asymptotes. Functions in quotient form whose denominators are bigger than numerators when x is large positive or large negative.

Step-by-step explanation:

help please ? I don’t understand I’m in 6th grade

Answers

Answer:

22/7 - irrational number

1.141141114 - irrational number

17/4 - rational number

-6 - integer

[tex]\frac{\pi }{2}[/tex] - irrational number

0 - whole number

9 - natural number and whole number

21/3 - natural number and whole number

Step-by-step explanation:

natural numbers would be numbers 1,2,3,4,5,6,7...

whole numbers would be numbers 0,1,2,3,4,5,6...

integers are negative whole numbers

rational numbers are fractions and numbers that have decimal points

irrational numbers are number such as [tex]\pi[/tex] or [tex]\sqrt{5}[/tex]

Helpppppppppppppppppppppppppppppppp!!!!!!!!!!!!!

Answers

Answer:

I need the questions, for this graph, or at least the numbers

Step-by-step explanation:

A cylinder has a diameter of 6 cm and a height of 20 cm what is the volume?

Answers

Step-by-step explanation:

V = pi r2 h

22/7 × (6/2)^2 × 20

565.71 cm3

Helllllllpppppp pls help me

Answers

Answer:

there you go!! it's correct dont worry

PLZ HELP BRAINLIEST AND 20 POINTS

When graphed, which equation would not make a straight line?


x-values y-values
3 10
4 13
5 16
6 19

x-values y-values
13 28
14 30
15 32
16 34

x-values y-values
1 7
2 6
3 5
4 4

x-values y-values
3 0
4 4
5 9
6 15

Answers

Answer:

the last set

Step-by-step explanation:

hope this helps :) have a nice day !!

**please let me know if this was wrong**

Is 2/3 and 6/10 equivalent or non-equivalent​

Answers

Answer:

not

Step-by-step explanation:

Answer:

non-equivalent

Step-by-step explanation:

the equivalend fraction of [tex]\frac{2}{3}[/tex] is [tex]\frac{6}{9}[/tex] not [tex]\frac{6}{10}[/tex]

Sophie can type 128 words in three minutes how many minutes will it take her to type 576 words?

Answers

Answer:

13 minutes and 30 seconds

Step-by-step explanation:

Okay so first you would divide 128 by 576. But since it takes her 3 minutes just to type 128 words you have to multiply 4.5 times 3. It will take her 13.5 minutes to type 576 words or 13 minutes and 30 seconds.

What is the population in 2020 of a place that has a population of 4 million people in 2011 and is growing at a rate of 1.3%?

Answers

Answer:

370 million

Step-by-step explanation:

In the 10 years from 2000 to 2010, the population was multiplied by the factor ...

100% + 9.6% = 109.6% = 1.096

In the next 20 years from 2010 to 2030, the population will be multiplied by that factor twice, if it grows at the same rate:

2030 population = (308 million)·(1.096²) ≈ 370 million

Reasoning : Why is the numerator greater than

the denominator in a fraction that is equivalent

to a percent greater than 100?

Answers

Answer:

See the explanation

Step-by-step explanation:

When the numerator is less than the denominator, the result is always less than 1, that is 0. something and this will give a percentage less than 100, but when the numerator is greater than the denominator, th result is greater than 1, and any figure greater than 1 gives a percentage that is greater than 100

example

Numerator >Denominator

=4/2*100

=2*100

=200%

Numerator <Denominator

=2/4*100

=0/5*100

=50%

How many days is 1,000 hours?​

Answers

Answer:

41.6666667 or 41 2/3 days

Step-by-step explanation:

There are 24 hours in a day. So you need to divide the hours by 24.

1000/24 is 41 and 2/3 days

Answer:

41.666667

Explanation:

Divide by 24 because 1 day is 24 hours

1000 / 24 = 41.666667

Need help to solve this

Answers

Answer:

332s+(27xm)

Step-by-step explanation:

because 27 is how much you save per month and you started off with 332

Can someone help me with this ?

Answers

Answer:

Bughghgg7guhih

Step-by-step explanation:

PlEASE HELP ASAP!!!! USATEST PREP DUE TODAY!!!Please No Links!!!

Answers

okey no links here u go

Answer:

2

Step-by-step explanation:

[4^2/(-1+3)^3+2*10] / (10+1)

= [16/8+20] / 11

= 22/11

=2

Hope this helps :) Giving me brainiest would help a lot :))

I need help what is 1+1 I've been on this for TWO hours...

Answers

Answer:

the answer is 2

Step-by-step explanation:

sorry if this is wrong

Two sides of a right triangle are 8 and 12. Find the missing side of 8 and 12 are a leg and a hypotenuse.​

Answers

Answer:

8.94 if no rounding is necessary.

Step-by-step explanation:

Pythagorean Theorem. What we know is only one leg and the hypotenuse, sooo...

8² + b² = 12²

64 + b² = 144

Subtract 64 from both sides...

64 - 64 + b² = 144 - 64

b² = 80

[tex]\sqrt{80}[/tex] = 8.94 if you're not rounding.

What is the common difference between successive terms in the sequence?
2, 8, 14, 20, 26, ...
-6
-4
ООО
4
о в

Answers

Let be a1 = 8 and a2 = 8 [ From question ]

We have to find out common differences which denoted by letter d .

d = a2 - a1 [ Formula ]

= 8 - 2

= 6

Thus,the common difference between successive terms in the sequence is 6 .

Answer:

6.

Step-by-step explanation:

We have to find out common differences which denoted by letter d .

d = a2 - a1 [ Formula ]

= 8 - 2

= 6

Also,

2+6=8 +6=14 +6=20 +6=26

So, It's Added Up By 6.

What is the surface area of this triangular pyramid?
___square inches

Answers

Answer:

Surface area = 10.7 in.²

Step-by-step explanation:

Surface Area of triangular pyramid = BA + P*L

Base Area (BA) = ½*nh

b = 2 in.

h = 1.7 in.

BA = ½*2*1.7 = 1.7 in.²

Perimeter (P) = 2 + 2 + 2 = 6 in.

Slant height (L) = 3 in.

Plug in the values

Surface Area = 1.7 + ½*6*3

Surface area = 10.7 in.²

2/10 convert to a decimal​

Answers

Answer:

0.2 is the answer

-your welcome and have a great day!!

What is the area?
30
32 in

Answers

Step-by-step explanation:

Here's your solution

=> Base = 32 In

=> Height = 30 in

=> Area of traingle = 1/2*base *height

=> putting the value of base and height in formula

=> Area = 1/2*30*32

=> Area = 480 in sq

hope it helps

What is the circumference of the pizza?

Answers

the circumference of the pizza is 37.7 inches

Answer:

28.29 inch.

Step-by-step explanation:

So diameter is 9.

Circumference = pi x d

= 22/7 x 9

=28.29inch.

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