Answer:
25.9
Step-by-step explanation:
If a tree casts a shadow 21 m long. Then the height of the tree will be 25.9 meters.
What is a right-angle triangle?It's a form of a triangle with one 90-degree angle that follows Pythagoras' theorem and can be solved using the trigonometry function.
A tree casts a shadow 21 m long.
The angle of elevation of the sun is 51°.
Let h be the height of tree.
Then the height of the tree will be
tan 51° = h / 21
h = 25.93 m
More about the right-angle triangle link is given below.
https://brainly.com/question/3770177
#SPJ2
Please help 20 points
For each expression, select all equivalent expressions from the list 1. 24x - 18 A. 6(4x -3) B. 6 C. 4(6x - 4) D. 12x - 9
Answer:
A
Step-by-step explanation:
Determine whether the following function is a one-to-one function. If it is one-to-one, list the inverse function by switching coordinates, or inputs and outputs. f={(9,7), (7,9), (6,7)} (1 point) The function f is not a one-to-one function. The function is one-to-one. The inverse is f−1={(−9,7), (−7,9), (−6,7)}. The function is one-to-one. The inverse is f−1={(−7,−9), (−9,−7), (−7,−6)}. The function is one-to-one. The inverse is f−1={(7,9), (9,7), (7,6)}.
Answer: An easy way to determine whether a function is a one-to-one function is to use the horizontal line test on the graph of the function. To do this, draw horizontal lines through the graph. If any horizontal line intersects the graph more than once, then the graph does not represent a one-to-one function.
i dont know the exact answer but its a lil sum
Step-by-step explanation:
We know that for any two inverses f(x) = g(y), meaning that if we take f(x) for any x in the domain of f(x), then g(y), where y is the outcome of f(x), should output x. So that is a simple test to see if two functions are inverses.
A factory makes table tennis balls. Each day the factory makes 5,184 balls. The table tennis balls are packed into boxes and sent to a store. Each box holds 18 balls. How many boxes are needed for all 5,184 balls?
Answer:
288 boxes
Step-by-step explanation:
5,184 / 18=288 boxes
60 in scientific notation
Answer:
I think the answer would be 6.0x10¹
If 60 was in scientific notation it would look like 6.0 because there is only one zero and we would need to move the decimal one place to the right. So we multiply 10¹ so we can move that decimal to the right to make 60.
Find the product of (2/3)x and (1/2x²)+6x-3
Answer:
=
1
2
x2+
20
3
x−3
Step-by-step explanation:
What are the coordinates of the image if this pre-image is dilated by 2?
Answer:
Step-by-step explanation:
hopes this helps :p
-52=-0.8k need a answer
Answer:
k is 65
Step-by-step explanation:
isolate the variables by dividing each side by factors that don't contain the variable
9. Which of the following could be the areas
of the three squares below?
A. 12 f12, 16 f12 and 20 f12
B. 10 f12, 18 ft2 and 30 ft2
C. 4 ft2, 5 ft2 and 12 ft2
D. 8 f12, 16 f12 and 24 ft2
Answer:
letter A po angsagot terror
n/10 + 8 = 12. Mental Math Solve the equation
Answer:
= 4 0
Step-by-step explanation:
/ 1 0 + 8 =1 2
/1 0+ 8 − 8 = 1 2 − 8
SIMPLIFY
1 0 = 4
Multiply all terms by the same value to eliminate fraction denominators
1 0 = 4
1 0 ⋅ /1 0= 1 0 ⋅ 4
Simplify
n=40
The time of a pendulum varies as the square root of its length. If the length if a pendulum which beats 15seconds is 9cm, find the length that beats 80seconds and the time of a pendulum with length 36cm
Answer:
length= 3.7 ft.
Step-by-step explanation:
T= (square root of length) * k
1.8 seconds = (square root of 3) * k
k= 1.8 seconds / (square root of 3)
a.) T= (square root of 11) k
substituting k:
T=(square root of 11) * 1.8 seconds / (square of 3)
T= 3.4 seconds
b.) 2 seconds = (square root of length) k
substituting k:
2 seconds =(square root of length) 1.8 seconds / (square root of 3)
Divide the equation by 1.8 seconds / (square root of 3):
2 seconds / [1.8 seconds / (square root of 3)] = (square root of length)
10(square root of 3) / 9 = (square root of length)
square both sides:
100/7 ft= length
length= 3.7 ft.
Hope this helps.
If Sarah love math what problem should she slove? 78 / 56 or 890 x 12.
Answer:
890 x 12
Step-by-step explanation:
PLS HELP!
The height of a football after it has been kicked from the top of a hill can be modeled by the equation
h = 2 (-2 -4t)(2t - 8) , where h is the height of the football in feet and t is the time in seconds. How long is the football in the air?
Answer: 5 seconds
Step-by-step explanation I tried pls don’t hate meh
Answer:
si senor I sell orange?
Step-by-step explanation:
or I wash windows?
Evaluate if m=6 and n=12
n-m
Answer:
6
Step-by-step explanation:
Please help me with these questions I’ll give you brainliest if you help with all questions
Answer:
sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorryStep-by-step explanation: i dont kno w
what is the monthly interest payment for an account with a balance of $200.00 and an A.P.R of 18%
Answer:
Find the monthly rate: Divide the APR by 12. : 18/12= 1.5
Multiply that the monthly rate by the amount of the loan: $200X1.5% = 3.-
$3.- is the monthly interest payment
How many people survived the water park?
Answer:
70 people visited the waterpark.
Step-by-step explanation:
Since you know that 250 people were surveyed and of those people, 28% of them visited the waterpark, you have to find out what 28% of 250 is. 28% of 250 is 70, so 70 people visited the waterpark.
I hope this helps you.
Find the tenth term of the geometric sequence with a1 = 3, and r = 2.
1377
1526
1659
1536
1500
General term of GP: a
1
r
n−1
10
th
term of GP =a
1
r
9
=45(0.2)
9
=23040×10
−9
=2.304×10
−5
Answer:
1536
Step-by-step explanation:
The n th term of a geometric sequence is
[tex]a_{n}[/tex] = a₁ [tex]r^{n-1}[/tex]
Here a₁ = 3 and r = 2 , then
a₁₀ = 3 × [tex]2^{9}[/tex] = 3 × 512 = 1536
I NEED IT KNOW PLEASEEE
Answer:
360
Step-by-step explanation:
Tony made $172.50 tutoring last weekend. He tutored for 7 1/2 hours. How much does Tony charge per hour to tutor?
Answer:
$23 an hour.
Step-by-step explanation:
divide 172.50 by 7.5
2. Factorizar: 3ax – 3ay – 2bx + 2by
help please :(
Answer:
There are no like terms.
Step-by-step explanation:
basically that is your answer you can not solve so it will be 3ax – 3ay – 2bx + 2by
A pair of shoes that originally sold at $30 is now being offered at a 25% discount.
What is its present price?
Answer:
$22.5
Step-by-step explanation:
You will pay $22.5 for a item with original price of $30 when discounted 25%.
Answer:
Refer to explanation
Step-by-step explanation:
The screenshot you put is the correct answer, here's another method to get the same answer:
Find what 25% is.
100% = 30
1% = 30 ÷ 100 = 0.30
25% = 0.30 x 25 = 7.50
Find the price after the 25% discount.
100 - 25 = 75
75% = 30 - 7.50 = 22.50 or 0.30 x 75 = 22.50 (Both solutions give the same answer)
-9x - y = -14
-2x + y = 3
Answer: x = 1 , y = 5
Step-by-step explanation:
Last Friday Trevon had $29. Over the weekend he received some money for cleaning the attic. He now has $41. How much money did he receive?
A. 29 - n = 41
B. 29 - n = 40
C. 29 + n = 41
D. 29 + n = 40
Answer:
C
Step-by-step explanation:
Trevon started with $29.
After cleaning, his total rose to $41.
Since he received money, we add that amount (n) to his initial amount of money ($29), to equal his total amount ($41)
what is the answer to the equation -5+15>-30
Your answer is going to be -20.
3. A manufacturing process produces integrated circuit chips. Over the long run, the fraction of bad chips produced by the process is 20%. Thoroughly testing a chip to determine whether it is good or bad is rather expensive, so a cheaper test is used. All good chips will pass the test, but so will 6% of the bad chips. a) (4 points) What is the probability that a randomly chosen chip will pass the test
Answer:
0.812 = 81.2% probability that a randomly chosen chip will pass the test
Step-by-step explanation:
Over the long run, the fraction of bad chips produced by the process is 20%.
So 100 - 20 = 80% are good.
All good chips pass the test, while 6% of the bad chips(20%) also pass.
a) (4 points) What is the probability that a randomly chosen chip will pass the test
[tex]p = 0.8 + 0.06*0.2 = 0.812[/tex]
0.812 = 81.2% probability that a randomly chosen chip will pass the test
Please help me this question
Answer:
45 degree
Step-by-step explanation:
What is the first step in solving the equation 9m - 2 = 16?
Add 2 to each side.
Subtract 2 from each side.
Divide each side by 9.
Multiply each side by 9.
Answer: Add 2 to each side
Step-by-step explanation:
9m-2=16
+2 +2
9m=18
Ann borrowed $3000 from a lender that charged simple interest at an annual rate of 7% When Ann paid off the loan, she paid $420 in interest. How long was the loan for, in years?
Answer:
it was a 2 year loan with $210 contributed each year
Step-by-step explanation:
you take 7 percent of 300 which is 210 and see how many times it goes into the total interest amount and then your answer is how many years the loan was for
find the 7th term in the sequence
1/3,1,3,9