Answer:
See answers in bold below
Step-by-step explanation:
Using pythagoras theorem to find the unknown side a;
c² = a²+b²
a² = c²-b²
a² = 20²-16²
a² = 400 -256
a² = 144
a = √144
a = 12
for the six trigonometry functions;
According to SOH CAH TOA
sin theta = opposite/hypotenuse
Opposite = 12
Hypotenuse = 20
sin theta = 12/20
sin theta = 3/5
cos theta = adj/hyp
cos theta = 16/20
cos theta = 4/5
tan theta = opp/adj
tan theta = 12/16
tan theta = 3/4
cosec theta = 1/sintheta
cosec theta = 1/(3/5)
cosec theta = 5/3
sec theta = 1/cos theta
sec theta = 1/(4/5)
sec theta = 5/4
what is the equation of the line that goes througtthe points (4,-1) and (2,3)?
Answer:
y = -2x + 7
Step-by-step explanation:
Answer:
Step-by-step explanation:
recall the two formulas
y = mx - b slope-intercept
y - y1 = m(x-x1) point-slope
with these we can get the equation . we also need to find the slope m
m = y2-y1 / x2-x1
m = 3 - (-1) / 2-4
m = 3 + 1 / -2
m = 4 / -2
m = -2
now with the slope known, plug in either point into the point-slope formula and work to the slope-intercept formula, I'll use (2,3) as the point to plug in.
y - 3 = -2(x-2)
y - 3 = -2x +4
y = -2x + 7
there.. that's your answer
y = -2x + 7
What is the height of a tree if a man standing 5 feet tall is 42 ft from the tree and sees the top of the tree at an angle of elevation of 32°?
Answer: [tex]31.24\ ft[/tex]
Step-by-step explanation:
Given
The height of a man is 5 ft
Distance between man and tree is 42 ft
the angle of elevation is [tex]32^{\circ}[/tex]
Suppose h is the height of the tree
[tex]\Rightarrow \tan 32^{\circ}=\dfrac{h-5}{42}\\\\\Rightarrow h-5=26.24\\\Rightarrow h=31.24\ ft[/tex]
The Acme Company produces metal rods. The largest rod that the Acme company produces is 10 feet long and 2 feet in diameter. How much material (the volume) is required to produce 1 metal rod? Round to the nearest tenth. Use 3.14 for \piπ .
Answer:
31.4 ft³
Step-by-step explanation:
Using the relation :
Volume, V = πr²h
Height = 10 feets ; diameter = 2 feets, radius, r = 2 /2 = 1 feet
Volume , V = π * 1^2 * 10
V = 1 * 10 * 3.14
V =31.4 feet³
Hence, the volume of material needed to produce 1 metal rod is 31.4 ft³
treinte + catorce = ??
Answer:
cuarenta y cuatro = 44
Step-by-step explanation:
treinta + catorce = cuarenta y cuatro
30 + 14 = 44
Qué tengas un lindo día
Have a great day
The balloon is floating 20 yds west of
where the rope is tied to the
ground. About how high in the air is the
hot air balloon? Round to the nearest
whole number.
Answer:
Step-by-step explanation:
Two friends leave school at the same time, Sarah is heading due north and Beth is heading due east. One hour later they are
5 miles apart. If Sarah had traveled 4 miles from the school, how many miles had Beth traveled?
OA. 2 miles
ОВ.
1 mile
OC. 3 miles
Answer:
Step-by-step explanation:
If you picture this scene in your head, you will get a simple 3x4x5 right triangle. 4 times 2 is 8, 5 times 2 is 10, so Sarah should, by now, have traveled 3 times 2 miles.
Final answer: Sarah has traveled 6 miles after an hour.
Hope this helped! :)
Helping tip: The reason it is not 4 is because they are not traveling west and east away from each other. They are traveling north and east, so they are moving in two directions to form a right triangle, and the hypotenuse would be 10 (miles). The side, or distance, that Beth has traveled is 8. So as this is a typical variation of a 3x4x5 triangle, Sarah will have traveled 6 miles.
If I have 7/10 and 645/1000 how many would I need to get to 10/10 and 1000/1000
Answer:
3/10 and 355/1000
Step-by-step explanation:
select all the statements that are true about the equation y=-2/3x+5
Answer:
The slope of the line is negative. The y-intercept is 5. The slope of the line is -2/3.
Step-by-step explanation:
With 2 given points on the line that are whole numbers, you can find the slope of the line with the equation [tex]m=\frac{y2-x2}{y1-x1}[/tex]. The answer will tell you whether it's negative or positive. For example, [tex]m=\frac{-2-1}{4-0} =\frac{-3}{4}[/tex]. The slope is negative for the example. The y-intercept would be the point with 0 as the x-value: (0, -5).
HELP ME I'M STUCK!!!! PLEASE AND THANK YOU!!!!
Answer: 1/8
Step-by-step explanation: The sample space are all of the different outcomes an event can lead to. The H and T combinations at the bottom are all of the different outcomes. I think the probability of getting 3 tails for the coins (or TTT) is 1/8. This is because there are 24 total outcomes (HHH, HHT, HTH, HTT, THH, THT, TTH, TTT). There is 3/24 TTTs (also, 1/8 if you count the groups/simplify). Therefore, it is 1/8. Hope this helps!
HELP ME PLEASE HELP!!!
Answer:
P(green) = 1/5
Step-by-step explanation:
P(yellow or blue on board 1) = 2/4 or 1/2
P(yellow or blue on board 2) = 2/5
2/5*2/4 = 4/20
Simplify.
1/5
Tyras father is two more than three times as old as she
If Tyra is 9 years old how old is her father
29
27
17
18
32
29 because 9*3 is 27 +2 equals 29
Answer:
29
Step-by-step explanation:
9×3+2=29
Tyra's father is 29
Express 18 and 24 as product of their prime factors
Answer:
6
cuz 6*3=18 and 6*4=24
Answer:
18: 2x9 3x6
24: 12x2 6x4 8x3
So 2
Step-by-step explanation:
Is that what you mean?
If the shaded part of this chocolate represents $21.00 and the unshaded part represents $5.00 each, what is the value of the whole chocolate
Answer:
$26.00
ad the picture Step-by-step explanation: it would be better if i had the pictrue but t ook the unshaded plus the shaded and got $26.00
Answer:
The correct answer is $26.00
Step-by-step explanation:
$21.00
+$ 5.00
________
$26.00
Help me pls. this is due tonight
Answer:
8
Step-by-step explanation:
what is the measure of C?
Answer:
10.82 or [tex] \sqrt{117} [/tex]
Step-by-step explanation:
pythagorean theorem is x^2+y^2=r^2
9^2+6^2=r^2
117=r^2
r= [tex] \sqrt{117} [/tex]
Answer:
10.81665383 about 10.8 units
Step-by-step explanation:
how to find the hypotenuse is a^2 + b^2 = c^2
a = 9
b = 6
9^2 + 6^2
9 x 9 = 81
6 x 6 = 36
81 + 36 = 117
177 = c^2
find the square root of 177 = 10.81665383 about 10.8
PLEASE HURRY!!!!! I REALLY NEED SOME HELP!!!!!!!
Can someone pls explain Pythagorean Theorem to me
Thank you
Answer:
Pythagoras theorem states that “In a right-angled triangle, the square of the hypotenuse side is equal to the sum of squares of the other two sides“. The sides of this triangle have been named as Perpendicular, Base and Hypotenuse. Here, the hypotenuse is the longest side, as it is opposite to the angle 90°.
Answer: In mathematics, the Pythagorean theorem, or Pythagoras's theorem, is a fundamental relation in Euclidean geometry among the three sides of a right triangle. It states that the area of the square whose side is the hypotenuse is equal to the sum of the areas of the squares on the other two sides.
Step-by-step explanation:
I SMART
Use the Triangle Inequality Property to determine whether a triangle can be formed with the given side lengths. 4 m, 8 m, 9 m *
Answer:
Therefore a triangle can be formed with side lengths of 4 m, 8 m, 9 m
Step-by-step explanation:
A triangle is a polygon with three sides and three angles. There are different types of triangles such as scalene, isosceles, equilateral and so on.
The triangle inequality property states that the sum of any two sides of a triangle must be greater than the third side. If a, b and c are the sides of a triangle then:
a + b > c; a + c > b; b + c > a
Given a triangle with side length 4 m, 8 m, 9 m:
4m + 8m = 12m > 9m
4m + 9m = 13m > 8m
8m + 9m = 17m > 4m
Therefore a triangle can be formed with side lengths of 4 m, 8 m, 9 m.
0.6(2n-9) = 3.4-2 (3n-1)
solve the following equation only
Answer:
n=1.5
Step-by-step explanation:
distribute: 1.2n-5.4= 3.4-2(3n-1)
Add numbers]: 1.2 n - 5.4= 5.4-6n
Move terms: 1.2n+6n- 5.4=5.4
Add like terms: 7.2n= 5.4+5.4
Divide both sides of equation by 7.2
Answer n= 1.5
PLZ SOMEONE HELP ME
find the measure of the variables and the measures of angles please, HELP ASAP!
9514 1404 393
Answer:
x = 36
78°, 36°, 66° (CW from lower left)
Step-by-step explanation:
The sum of angles in a triangle is 180°, so we can write the equation ...
(2x +6)° +x° +(2x -6)° = 180°
5x = 180 . . . . simplify
x = 36 . . . . . . divide by 5
Then the angle measures are ...
(2x +6)° = (2·36 +6)° = 78°
x° = 36°
(2x -6)° = (2·36 -6)° = 66°
Answer:
Top angle - 36
Left angle - 78
Right angle - 66
Step-by-step explanation:
First to find the angles you need to find x. Do this by adding all the angle measurements and setting them equal to 180 because all triangles equal 180.
x+2x+6+2x-6=180Then, combine like terms
5x=180Finally, divide both sides by 5
x=36Now that you know x you can plug it in to find the rest of the angles. The top angle is simply 36. The left angle is 2(36) + 6, which equals 78. The right angle is 2(36) - 6, which equals 66.
PLEASE HELP WILL MARK BRAIN LIST IF CORRECT!
Answer: 806.5
Step-by-step explanation: you can split it into 3 different shapes: a triangle, rectangle, and a trapezoid. Then, find the area of each individual figure and add them all together and you get 806.5!!
I have to find the area of the shaded region in the figure above and answer using an exact and approximate answer
Answer:
3925 units²
Step-by-step explanation:
area of larger circle = πr² = (3.14)(250²) = 196,250
area of smaller circle = πr² = (3.14)(200²) = 125,600
area of full donut = 196,250 - 125,600 = 70,650
20/360 = 1/18 of full donut
1/18(70,650) = 3925 units²
pls help :))))))))) uhhhhhhhhh
The answers are 3 and -13
You need to plug 3 and -5 into x
By doing this, you get :
12 - 3^2 and
12 - (-5)^2
those expressions equal
12 - 9
12 - 25
So you get
3
-13
Please help me with 1,2 give me the answers and show me how you get it do not send me link please just write it right here please I really need help
t,when t= 10 pls help me on this math problem like fast pls
I dont see a problem here!!!!!!!!!
Can someone plz help me on this plz I beg u
Answer:
B because 20 cm multiplayer by 9cm equals 180cm
Which of the following properties is always true for a parallelogram? *
Diagonals bisect each other.
Diagonals are perpendicular.
Diagonals are congruent.
Diagonals biscect opposite angles.
Answer:
Diagonals bisect each other
Can someone solve this please? (Radical Form)
Step-by-step explanation:
16+48=68 that's it good luck
please help i've been doing this ages
PLSSS ANSWER QUICK
Find the expected value and standard deviation.
Answer:
1) E(X) = 1.5
2)SD = 1.118
Step-by-step explanation:
1) Formula for expected value of this set of data is;
E(X) = Σx * P(x)
Σx = 0 + 1 + 2 + 3 = 6
And P(x) = ¼
Thus;
E(X) = 6 × ¼ = 1.5
2) Formula for the standard deviation is;
SD = √Σ((x - μ)²•P(x))
Where μ is the expected value = 1.5
At x = 0,we have;
(0 - 1.5)² × 1/4 = 0.5625
At x = 1, we have;
(1 - 1.5)² × 1/4 = 0.0625
At x = 2, we have;
(2 - 1.5)² × 1/4 = 0.0625
At x = 3, we have;
(3 - 1.5)² × 1/4 = 0.5625
Thus,Σ((x - μ)²•P(x)) = 0.5625 + 0.0625 + 0.0625 + 0.5625 = 1.25
Thus;
SD = √1.25
SD = 1.118