Answer:
b
Step-by-step explanation:
A student is standing 20 feet away from the base of a tree. He looks to the top of the tree at a 50° angle
of elevation. His eyes are 5 feet above the ground. Using cos 50° 0.64, what is the height of the tree
to the nearest foot?
36 feet
29 feet
24 feet
31 feet
Answer:
[tex] \tan(50) =opp(x) \div adh(20) \\ \tan50 \times 20 = opp(h) \\ = 23.8 [/tex]
therefore the answer is 24
The height of the tree is approximately 26 feet.
What are trigonometric identities?There are three commonly used trigonometric identities.
Sin x = Perpendicular / Hypotenuse
Cosec = Hypotenuse / Perpendicular
Cos x = Base / Hypotenuse
Sec x = Hypotenuse / Base
Tan x = Perpendicular / Base
Cot x = Base / Perpendicular
We have,
Let's denote the height of the tree with 'h'.
Then we can use the trigonometric ratio for cosine as follows:
cos(50°) = adjacent/hypotenuse
cos(50°) = 20/h + 5 (the adjacent side is the distance from the student's eyes to the tree, which is 20 feet, and the hypotenuse is the height of the tree plus the height of the student's eyes, which is h + 5 feet)
Now we can solve for 'h':
0.64 = 20/(h + 5)
0.64(h + 5) = 20
0.64h + 3.2 = 20
0.64h = 16.8
h = 26.25
So the height of the tree is approximately 26 feet (rounded to the nearest foot), which means the closest answer choice is 29 feet.
Therefore,
The height of the tree is approximately 26 feet.
Learn more about trigonometric identities here:
https://brainly.com/question/14746686
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PLEASE HELP ME WITH MY MATH
Answer:
Step-by-step explanation:
1)
y is 3 times more than x.
X=0 Y=0 3x0=0
X=1 Y=3
X=2 Y=6
X=3 Y=9
X=4 Y=12
Then just plot it as co-ordinates (x,y)
2)
Y is 1/4 of x. Divide by 4
X=0 Y=0
X=4 Y=1
X=8 Y=2
X=12 Y=3
X=16 Y=4
Then just plot it as co-ordinates (x,y)
What is the probability of randomly drawing a vowel?
Answer:
abc
Step-by-step explanation:
i need help FAST
WILL GIVE BRAINLY
Answer:
Comma Rule 3.1: Put commas around parenthetical words, phrases, or clauses. Put commas before and after parenthetical or non-essential words, phrases, or clauses that would leave the sentence grammatically correct if you omitted them. ... Commas in this way function as a lighter form of parentheses
please help me im so confused
Answer:
the answer is 9w+2/3
Step-by-step explanation:
Please mark me branliest
Answer:
9w+23
Step-by-step explanation:
bc i kno
plz mark ME brainilist
HIFLUFFLYFYFYLDDDDICYLFDGHCGYHDCGCUDCF
Answer:
178
Step-by-step explanation:
138 x 14= 1932
1932/28= 69
69+109= 178
Help Please I will Give Brainliest if Correct!!
Answer:
w exponent 6
_____________________
9
Step-by-step explanation:
I hope this helps I couldn't write it correctly sorry
Describe whether or not the following are true or false...
Answer:
Step-by-step explanation:
A: True
B: False
B: False
Answer:
1:true
2:false
3:false
Step-by-step explanation:
(MIDDLE SCHOOL MATH) Please help!
I’m having trouble finding the interval.
Please and thank you!
Plsss help if you can! I will mark you brainliest, give thanks, and 5 stars, and friend invite if you are correct!!
Answer:
3 times a number x minus 694 is 10
3 times a number x
694-10 is 684
3 times what equals 684
3 times 228 equals 684
X= 228
Step-by-step explanation:
HELP PLS WHOEVER GETS IT RIGHT GETS BRAINLIEST AND A THANK U THIS IS URGENT
Lola ran 6.79 miles to prepare for her track meet today. If she runs this distance every day this week, how many miles will Lola run? (Remember, there are 7 days in one week).
Answer:
47.53 miles
Step-by-step explanation:
6.79×7= 47.53
Answer:
47.53 miles total for the week.
Step-by-step explanation:
so if she ran 6.79 for each 7 days that would be:
6.79 * 7 = 47.53
or
6.79 + 6.79 + 6.79 + 6.79 + 6.79 + 6.79 + 6.79 = 47.53
hope this helps!!
have a great rest of your day! :D
Sarah worked 8 more hours than Paida (algebraic expression) ___
Kumar has twice the number of goals as Jacob ___
Addison is 3 years younger than Nathan ___
Help me with this math plz
Answer:yoo I would help but i cant rn but later
Step-by-step explanation:
Help with math I need, do not understand I do (yoda speech) lol.
Pls help
In the blank space is where the Picture suppose to go
WILL MARK BRAINLEST Lillian lost her ELA book. Her school charges a lost book fee of 60 % of the cost of the book. Lillian received a notice stating she owed the school $45 for the lost book.
Which equation best represents the proportional relationship between the school’s cost for the book and the amount a student must pay for a lost book. Let c represent the school’s cost of the book in dollars and d represent the student’s cost in dollars
Question 4 options:
d = .60c
c = .60d
d = 45c
c = 45d
Answer:
The first one
Step-by-step explanation:
Answer:
D=.60c
Step-by-step explanation:
D is the amount that the student has to pay, and since they have to bay 60% of the amount, you'd take the amount times .6. So that leaves us with d=.60c. Hope this helps!
Rewrite the expression in the form 5^n
(5^3)^2=?
This problem is all about bases and exponents. Because we have a quotient and the bases are both 5's, that means that we can use the rule of exponents for quotients to rewrite and simplify:
That's the simplification as long as you are "allowed" to leave the exponent as a negative number.
Megan spent one-fourth as much as Hannah, who spent d dollars.
Emily spent ten dollars more than Megan.
Kyle spent three dollars less than Emily.
Which expression represents the amount Kyle spent?
A. d/4 + 7
B. d/4 + 13
C. 4d + 7
D. 4d + 13
I don’t really understand this question, so please help if you can!!
Answer: b
Step-by-step explanation: if I’m wrong tell me
PLZ HELP MEEEEEEEEEEEEE
Answer:
Ill do this quick...
Its B.
Step-by-step explanation:
4.Han earned $850 over the summer working odd jobs. He wants to put his money into a savings account for when he is ready to buy a car. His bank offers a simple interest account at 5%, how much interest will Han have earned after 2 years?
A.$10.00
B.$17.00
C.$42.50
D.$85.00
Question 4^
5. Han checks with another bank and their interest rate is 4%. Based on your answer in question 4, how much longer will he have to leave his money in the account to earn the same amount of interest as the first bank?
A.6 months
B.1 year
C.2 years
D.2.5 years
Answer:
C and A
I hope this helps!! :)
Answer:
in the first question is
?/850 = 5/100
850×5=4,250
4,250 divided by 100= 42.50= 42.5
and the second is the A
please help me......................................
Answer:
148.5
Step-by-step explanation:
times all
Both 11 and 13 are factors of 858. Explain how to use this information to get two other factors.
Hope it helps
Answer:
..,
HStep-by-step explanation:.
.
1. Is the graph proportional?
2. How many feet can a sloth travel in 20 minutes?
Answer:
1. Yes
2. 60
Step-by-step explanation:
The graph is proportional because it passes an origin point.
The equation of the graph is
[tex]y = 3x \: \: (x \geqslant 0) \: \: (y \geqslant 0)[/tex]
We can find the distance when travelling in 20 minutes by substituting x = 20 in the equation.
[tex]y = 3(20) \\ y = 60[/tex]
Therefore the distance (ft) is 60.
Please help meh again...
Answer:
1
- Two over three
2
Step-by-step explanation:
y = -3x + 3
HELP I WILL GIVE BRAINLIEST TO BEST ANSWER 40 POINTS
Answer:
x=anything
Step-by-step explanation:
Answer:
(0,3)(1,0)
Step-by-step explanation:
If you took 40% of $300, would you get the same result in the previous slide? Show your work to explain yourself.
(previous work : A $300 mountain bike is discounted by 30% and then discounted an additional 10% for shoppers who arrive before 5:00am.)
Answer:
250% or 11/100
Step-by-step explanation:
ILL GIVE BRAINLIEST
Hunter bought a cell phone for $159 and 6% sale tax was added at the register. Hunter gave the cashier nine $20 bills, how much change should he receive?
Answer:
Step-by-step explanation:
So in order to solve this you would multiply 159 by 6% and get 9.54 so therefore you add the 9.54 to 159 and get 168.24 Then you add together all the bills which is 180 and subtract 180- 168.24 which equals 11.76 so the answer to your question is that Hunter shall received $11.76 in change.
PLEASE HELP ASAp
Sophia has a shelf that is 51 over 2 inches wide. How many notebooks can Sophia arrange on the shelf if each notebook is 3 over 2 inches thick?
38, because the number of notebooks is 51 over 2 ⋅ 3 over 2
153, because the number of notebooks is 51 over 2 ÷ 3 over 2
102, because the number of notebooks is 51 over 2 ⋅ 3 over 2
17, because the number of notebooks is 51 over 2 ÷ 3 over 2
Pls helppppppppppp
Hayden had 2 1/2 gallons of water in his watering can. The seed packet said to use 1/4 of a gallon for peppers and 5/8 of a gallon for tomatoes. Hayden then used some of the water for lettuce. If Hayden had 3/4 gallons of water left over, about how much water did he use for lettuce?
i need it by 7 pm
Answer:7/4 - 7/8 = 14/8 - 7/8 = 7/8 for lettuce
Step-by-step explanation:1/4 + 5/8 = 2/8 + 5/8 = 7/8
= amount used for pepper and tomatoes
2 1/2 - 3/4 = 5/2-3/4 = 10/4 -3/4 = 7/4
= total amount used
so
7/4 - 7/8 = 14/8 - 7/8 = 7/8 for lettuce
Answer:
he used 3\4 im guessing
Step-by-step explanation:
What is the -coordinate in the solution for the system of linear equations below?
−3 + 2 = 6
4 − = 2 A. −6 B. 1 C. 2 D. 6
Answer: C
I hope this helps you. sorry if it's wrong.