A helicopter hovers 950 feet above a small island. The figure shows that the angle of depression from the helicopter to point P is 47 °. How far off the coast, to the nearest foot, is the island?
Answers
let x rep the foot of the island
Using trig formula
SOHCAHTOA
sin 47° = 950/x
xsin47° = 950
x = 950/sin47°
Related Questions
Find the value of the missing variable(s). All figures are kites. (please don't leave any links...)
Answers
Answer:
Step-by-step explanation:
The values of x and y are required.
and
From the given figure the sides and are equal.
Also, and are equal.
So,
Hence, and
Molly bought a pair of gloves and a skirt. The gloves cost £4. She sold the gloves and skirt for a total of £48. She made 100% profit on the cost of the gloves, 20% profit on the total cost. Work out her percentage profit on the cost of the skirt. Give your answer to 1 decimal place.
Answers
Answer:
Profit % = 111.1 %
Step-by-step explanation:
Cost of glove = £4
Sales price of glove and skirt = £48
100% profits on the cost of the glove
20% profit on the total cost
Profit on the total cost = 20% = 0.20
Total cost + 0.20 total cost = Sale value
1.20 * total cost = 48
Total cost = 48 / 1.20
Total cost = 40
Cost of the skirt = Total cost - cost of the gloves
Cost of the skirt = 40 - 4
= 36
Price of the skirt = total value - price of the gloves
Total value = £48
100% of £4 = 100/100 * £4
= £4
Profits + cost of glove = $8
Amount remaining = £48 - £8
= £40
Profit percentage on the skirt = price of the skirt / cost of the skirt
= 40 / 36 * 100
= 1.1111 * 100
Profit % = 111.1 %
3.) Forty percent of a number is equal
to one-half the number decreased by
15. Which one can be used to
determine the number?
A 40x = – 15
B 40x > 2x – 15
C 0.40x< - 15
D 0.4x =x/2-15
Answers
D
0.4 multiplied by x would give you the percentage and putting x over 2 would give you half of that number
Which 2 numbers that are between -8 and 5/4? -4.0, 1.3%, -0.1, -1/4, 3/2, 130% Help me!!
Answers
Answer:
This is a "strategic" guess
Step-by-step explanation:
I think it is -0.1
If x = 16,justify if this value is a solution to the equation:2x-(x+3)=13
Answers
Answer:
true, when you substitute 16 for x and solve it adds up correctly
Answer:
13 = 13
so True
Step-by-step explanation:
x = 16
2(16)-(16+3)=13
32-19=13
13=13
One kilogram is approximately 2.2 pounds. An elevator in London shows a weight limit of 200
kilograms. How many pounds (lbs.) is this?
Answers
Answer:
440!!
Hope I helped! (and also if nobody said this today, remember that you´re loved) <33
fractorise 2x - 12 pls
Answers
Answer:
[tex]2x - 12 \\ \\ = 2(x - 6)[/tex]
# Bora 7#
Answer:
the answer is -24
Step-by-step explanation:
2x (-12) = 2 times -12, which is -24
x + 3=12 need help now someone please help me
Answers
Answer:
x = 9
Step-by-step explanation:
Isolate the variable, x. Note the equal sign, what you do to one side, you do to the other. Subtract 3 from both sides of the equation:
x + 3 (-3) = 12 (-3)
x = 12 - 3
x = 9
x = 9 is your answer.
~
Find x if f(x) = 2x + 7 and f(x) = -1.
A. 5
B. -3
C. -4
Answers
Answer: C
Step-by-step explanation: When I graphed the equation and went to -1 y, the answer was -4.
Help...../..........///////////.
Answers
Answer:
The answer is C. $2.20 per lb
it is C 2.20 per pound
Step-by-step explanation:
because 2.20 x 5 = 11 hope
hope this helps
Does the graph represent a linear or nonlinear function? Explain
Answers
Answer:
non linear
Step-by-step explanation:
Because a linear function its a straight line who pass from the origin point because the values are proportional
Non Linear
Explanation:
A linear function is represented by a straight line going across the y axis or diagonally across the x & y axis. A Nonlinear function is not line, but can be referred to as a curve.
2. In 2014, Social Security tax was 6.2%,
on the first $117,000. If Grace earned
$98,750 in 2014, how much Social
security tax did she pay?
Answers
Anna had a solid wooden dowel with a length of 12 inches and a diameter of 1 inch, as shown below. She cut a two-inch portion out of the dowel as indicated. What was the volume, to the nearest tenth of a cubic inch, of the portion of the dowel that Anna cut out?
Answers
Answer:
Volume of the portion = 1.6 cubic inches
Step-by-step explanation:
Since, wooden dowel is in the shape of a cylinder,
Formula to be used to find the volume of the part Anna has cut from the dowel will be,
Volume = πr²h
Where r = radius of the cylinder or part of the wooden dowel
h = length of the portion
By substituting the values in the formula,
Volume = π(0.5)²(2)
= 0.5π
= 1.57 in³ ≈ 1.6 cubic inch
Therefore, volume of the portion will be 1.6 in³.
person 1 can do a certain job in 15min, and person 2 can do the same job in 30 min. when completing the job together, which expression would be used to represent the amount of work done by person 1
A. 15
B. 1/15
C. x/15
Answers
Answer:
I believe the answer is B. 1/15
Step-by-step explanation:
Answer:
B. 1/15
Step-by-step explanation:
Can anyone solve this correctly?
Answers
Answer:
43.52 in.
Step-by-step explanation:
7 in. x 10.2 in. = 71.4 in.
4.1 in. x 6.8 in. = 27.88 in.
71.4 in. - 27.88 in. = 43.52 in.
simplify (5x-7) (2x+3) (7x-8)
Answers
Answer:
70x³ - 73x² - 155x + 168
Step-by-step explanation:
Given
(5x - 7)(2x + 3)(7x - 8) ← expand the first pair of factors using FOIL
= (10x² + x - 21)(7x - 8)
Each term in the second factor is multiplied by each term in the first factor, that is
10x² (7x - 8) + x(7x - 8) - 21(7x - 8) ← distribute the 3 parenthesis
= 70x³ - 80x² + 7x² - 8x - 147x + 168 ← collect like terms
= 70x³ - 73x² - 155x + 168
3) Daniel bought a magazine for $7 and four
erasers. He spent a total of $19. How
much did cach craser cost?
Answers
Answer:12 dollars and 9 cents
Step-by-step explanation:
Answer:
each eraser was $3
Step-by-step explanation:
You do 19-7 (because ur subtracting the magazine cost) then you have 12. You divide 4 by 12 which equals 3. Therefore, each eraser is $3. Hope this helped :)
A 24-ounce box of cornflakes costs $4.59. What is the unit rate?
Answers
Answer:
0.19 cents/ounce
Step-by-step explanation:
4.59 dollars/24 ounces = 0.19125 cents/ounce
rounded, the unit rate would be about:
0.19 cents/ounce
which is faster 220 newspaper in 55 mins or 135 newspapers in 45 mins. which one is the faster rate
Answers
Answer: 135 newspapers in 45 mins
Step-by-step explanation:
1. Find the area of this complex shape composed of two congruent parallelograms. 8 cm 5 cm
Answers
Answer:
80
Step-by-step explanation:
since it is a parallelogram, you can multiply it easily. 8x5+40 40x2+80
A student correctly answered 35 of the 40 questions on a mathematics exam. What percent did she answer correctly?
Answers
Answer:
87.5%
Step-by-step explanation:
To find a percentage of questions correct divide the number of correct answers by the total number of questions and then multiply that by 100.
(35/40)100=87.5
what 3.2 x 10^3
in standard form
Answers
Answer:
3,200
Step-by-step explanation:
10^3 is also represented as 1,000, so you just move the decimal over to the right 3 places.
Which of the following numbers is divisible by 3, 5, and 10? OA) 15 B) 20 OC) 25 OD) 30
Answers
Answer:
30 is the correct answer because 3times 10 =30 5 times 6 is 30 and 10 times3 is also 30
Can someone help me with this if you can? please and thank you! :)))
Answers
Answer:
The regular price is $38.69
Step-by-step explanation:
32.89 / 0.85 = 38.69411765
Tony purchased a rare 1959 Gibson Les Paul guitar for $12,000. Experts estimate that its value will increase by 14% per year. If this trend continues, how many years will it take for the guitar to reach a value of $90,000?
Answers
Answer: 214332.47
There is no need to explain you can just see the photo that I had displayed.
please can you solve this fast
Answers
Step-by-step explanation:
[tex] {x}^{2} + 8x = 0[/tex]
[tex] {x}^{2} + 8x + 16 = 16[/tex]
[tex](x + 4) {}^{2} - 16 = 0[/tex]
Solve for the value of z.
(2+4)° 101°
HELP PLEASE 15 POINTS ILL GIVE YOU COOKIE
Answers
Answer:
75?
Step-by-step explanation:
Isnt the total of the line suppose to equal 180*? if thats the case then the first angle 101* is 11 over the 90* mark meaning that you take 11 from the other side which would be 90-11 and that leave you with 79 but since the problem says +4 you would take 4 from 79 leaving you with 75. You would work backwards on the problem so the whole thing equals 180*
What is the area of this figure?
o 573 units
o 638 units
O 683 units
Answers
Answer:
638 square units
Step-by-step explanation:
37 × (9 + 16) - 9 × 16 - 13 × (25 - 14) =
= 37 × 25 - 9 × 16 - 13 × 11
= 925 - 144 - 143
= 638
Answer: 638 square units
Answer:
638
Step-by-step explanation:
i took the k12 test
3. Priscilla is trying to decide which of two aquariums she should buy.
One aquarium is a rectangular prism with a base that is 20 inches by 19
inches and a height that is 22 inches. The other aquarium is in the shape
of a cube that has 20-inch edges. Find the difference in the volume of
the fish tanks?
Answers
one has more width the other shows the length
If x>-1, which number could be a value of x? O A. -1 O B. -7 O c. 1 O D.-13
Answers
Answer:
1
Step-by-step explanation:
all the other are less than -1 and since the rule is that x has to be greater than -1 its 1