Mai is playing a game with a class of second graders. Mai knows she is exactly 120 inches from the mirror on the floor. She has students stand so that she can just see the top of their heads and then guesses their heights. The students are amazed!
Diagram of 2 stick figures.
How is Mai so accurate?
Answers
Mia is able to find the height of the students so accurately using the tangent property of trigonometry.
What is Tangent (Tanθ)?The tangent or tanθ in a right angle triangle is the ratio of its perpendicular to its base. it is given as,
[tex]\rm Tangent(\theta) = \dfrac{Perpendicular}{Base}[/tex]
where,
θ is the angle,
Perpendicular is the side of the triangle opposite to the angle θ,
The base is the adjacent smaller side of the angle θ.
As it can be seen that there are two right triangles, therefore, using the tangent property of the trigonometry, Mia is able to find the height of the students so accurately.
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Related Questions
True OR False. For Two-Step Equations: Undo add/subtract First, then Undo multiply/divide. PLS HELP THIS IS DUE TONIGHT!!!
Answers
Answer:
False
Step-by-step explanation:
You multiply/divide first.
A t-shirt increased in price by 1 4 . After the increase it was priced at £65. What was the original price of the t-shirt?
Answers
The original price was £52 if the t-shirt increased in price by 1/4. After the increase, it was priced at £65.
What is a fraction?Fraction number consists of two parts, one is the top of the fraction number which is called the numerator and the second is the bottom of the fraction number which is called the denominator.
The question is incomplete.
Please refer to the picture for the complete question.
We have:
A t-shirt increased in price by 1/4. After the increase, it was priced at £65.
Let's suppose the original price was x
(1 + 1/4)x = 65
(1 + 0.25)x = 65
1.25x = 65
x = £52
Thus, the original price was £52 if the t-shirt increased in price by 1/4. After the increase, it was priced at £65.
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Complete each subtraction equation below as an addition equation. a − 9 = 6
Answers
Answer: a = 15
Step-by-step explanation:
15 - 9 = 6
Answer:
a=7
Step-by-step explanation:
add 9 to 6 and that is your answer
Find the peremiter of triangle ABC
Answers
Answer:
18
Step-by-step explanation:
if AB : BC : AC is 3 : 4 : 2 and BC = 8 then AB = 6 and AC = 4
To calculate the perimeter of the triangle we add all side lengths up
4 + 6 + 8 = 18
Answer:
Step-by-step explanation:
12
units.
Explanation:
Using the Distance Formula,
A
B
2
=
{
(
−
5
)
−
(
−
2
)
}
2
+
{
(
−
2
)
−
(
−
2
)
}
2
=
9
∴
A
B
=
3
Similarly,
B
C
=
5
,
and
,
A
C
=
4
Hence,
the Perimeter=
A
B
+
B
C
+
A
C
=
12
units.
Answer link
Sketch a cylinder with radius 8 feet and height 3 feet, then find the volume.
Answers
Answer: 339.29ft^3
Step-by-step explanation:
The formula for a cylinder is πr^2h
In your scenario, r=8 and h=3 so put those into the equation -
π8^2(3) and just solve!
HELP FAST TRUE OR FALSE
Answers
What is 24a³ ÷ 8a ²
Answers
Answer:
24/8=3. 3-2=1 but you don't have to put the 1
3a
The 3 and the 2 are subtracted.
I need some help on this question! I will mark if you help!
Answers
Carlos has 38 apples. He puts 8 apples into each bag. If he fills as many bags as possible, How many apples are left
A .6
B. 5
C 2
D 4
Answers
Answer:
the answer is A 6 apples
Step-by-step explanation: you want to divide 38 by 8 if you do that you get 4 bags with 6 apples left
Answer: Carlos can fill 4 bags and have 6 left over
Step-by-step explanation:
The first step is to divide 38 by 8.
38 ÷ 8 = 4 with 6 left over.
That means that Carlos will be able to fill 4 bags and have 6 left over.
The answer is A, 6. Hope this helps, and good luck!
Given: AABC-ADEF
Determine the measure of DF
A)3 cm
B)4 cm
C)5 cm
D)6 cm
Answers
Three times the sum of a number, n, and 5 is at least 17. Which of the following inequalities properly models
this statement?
(1) 3n+5<17
(3) 3(n+5) 217
(2) 3n+5217
(4) 3(n +5) <17
Answers
Answer:
Step-by-step explanation:3
Answer: 3(n + 5) ≥ 17
HOPE THIS HELPS
940 divided by 28??????
Answers
anskksmzksksmamkdkcjdjdkekkdd
Answer:
lol 33.5 or 33.57 either one of them
Step-by-step explanation:
hope this helps!
Slope=2/5: passes through (-3,1)
Please help. I will give brainliest
What is the slope intercept form
Answers
Answer:
the required equation is y - 2/5x = 11/5
The interior angles formed by the sides of a quadrilateral have measures that sum to 360°
What is the value of x?
(Look at the photo)
Answers
Answer:
I believe x = 34
Step-by-step explanation:
3 × 34 = 102
102 - 6 = 96
2 × 34 = 68
96 + 68 + 88 + 108 = 360
Graph f (.x) = x3 – 4x3 + x2 + 2. Identify the x-intercepts and the points where the local maximums and local
minimums occur. Determine the intervals for which the function is increasing or decreasing. Round to the nearest
hundredth, if necessary.
Answers
After graphing x⁵ – 4x³ + x² + 2, we have
x-intercepts : x ≈ 2.16, x = 1, x ≈ 1.75
local maximums : (-1.63, 10.47)
local minimums : (1.46, -1.68)
increasing : 1.46 < x < -1.63
decreasing : -1.63 < x < 1.46
What is graphing?In discrete mathematics, and mοre specifically in graph theοry, a graph is a structure amοunting tο a set οf οbjects in which sοme pairs οf the οbjects are in sοme sense "related". The οbjects cοrrespοnd tο mathematical abstractiοns called vertices (alsο called nοdes οr pοints) and each οf the related pairs οf vertices is called an edge (alsο called link οr line).
Typically, a graph is depicted in diagrammatic fοrm as a set οf dοts οr circles fοr the vertices, jοined by lines οr curves fοr the edges. Graphs are οne οf the οbjects οf study in discrete mathematics.
After graphing x⁵ – 4x³ + x² + 2, we have
x-intercepts : x ≈ 2.16, x = 1, x ≈ 1.75
local maximums : (-1.63, 10.47)
local minimums : (1.46, -1.68)
increasing : 1.46 < x < -1.63
decreasing : -1.63 < x < 1.46
Learn more about graph
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Complete correct question:
Will give brainliest!! Please help
Answers
Answer:
2.67m
Step-by-step explanation:
Find the scale factor= 5/3
times 1.6 by 5/3 = 2.67
EZ PTS PLS HELP AND ILL MARK BRAINLIEST IF ITS RIGHT :D
Answers
Answer:
rational ; 7, 6.15, 1/5, 3 squared 27,
irrational; 3 squared, 3 squared 16, 5 squared over 3
radical form
1. 3 exponent squared 5
2. 5 exponent squared (4x)^3
Step-by-step explanation:
help me out ? ty I’ll give brainliest
Answers
Answer:
it will
Step-by-step explanation:
33.46
hope it helps and your day will full of happiness
Which of the following is NOT equivalent to 78 ÷ 6? (72 + 6) ÷ 6 (72 ÷ 6) + (6 ÷ 6) (60 ÷ 6) + (18 ÷ 6) (72 ÷ 6) + 6
Answers
Answer:
(72 divided by 6) + 6
Step-by-step explanation:
78 divided by 6 is 13. The question (72 divided by 6) + 6 does not equal to 13, it equals to 14, therefore (72 divided by 6) + 6 is not equivalent.
Answer:
(72 divided by 6) + 6
Step-by-step explanation:
Which question below is a Statistical Question?
A. How many students have a cell phone?
B. How many months are in a year?
C. How tall are the students in your class?
D. What is for lunch today?
Answers
Answer:
C
Step-by-step explanation:
I chose C because it more detailed than the rest of the question. Everyone already knows how many months are in a year. What is for lunch today is just a normal question. How many students have a cell phone was not really detailed but it would have been different if they said "How many percentage of college students in math class uses cell phones.
Hope this helps:)
What is the GCF of 8x and 2x^2?
Answers
Answer:
2x
Step-by-step explanation:
both 8x and 2x^2 can be factored by 2x, but 2x^2 can't be factored by a higher coefficient
Which table corresponds to the equation y = −3x −2?
Answers
Answer:
b
Step-by-step explanation:
A bag of 8 rolls for $1.89 or a bag of 18
rolls for $3.79
Answers
Answer:
8 rolls for $1.89
Step-by-step explanation:
when you divide to see how much each one costs the 8 rolls is better
Answer:
8 rolls for 1.89
Step-by-step explanation:
Please Help
write and equation in slope intercept form with the following information. slope = 7, y intercept = -9
Answers
Answer:
y=7×-9 I going to be your answer
Which following is not a function
Answers
Will give brainliest
Answers
Answer: y=12 x =9
Step-by-step explanation:
In a parallelogram the diagonals bisect each other making them equal.
this means 2y + 6 = 30
we can rearrange this as 30 - 6 = 2y
24 = 2y therefore y = 12
3x - 3 = 24
We can rearrange this as 24 + 3 = 3x
3x = 27
27 / 3 = 9
x = 9
Hope this helped :)
Evaluate. -8 + 24 = 1
Answers
Answer:
16=1
Step-by-step explanation:
Step-by-step explanation:
Work out the size of angle x
Answers
it’s like that z thing and the lines are both parallel. so where it’s 100 degrees the opposite is 80 degrees, because it’s a line of 180 degrees. so the line below that is the same. taht made no sense
PLEASE HELP ASAP IM TIMED
What steps are used to solve the equation?
g – 8 = 14
Complete the statements.
First,
both sides of the equation.
The solution of the equation is
.
Check the solution by substituting
for g and simplifying.
Answers
Answer:
both sides of the equation.
The solution of the equation is
.
Check the solution by substituting
for g and simplifying.
Step-by-step explanation:
What steps are used to solve the equation?
g – 8 = 14
Complete the statements.
First,
both sides of the equation.
The solution of the equation is
.
Check the solution by substituting
for g and simplifying.
Answer:
Step-by-step explanation:
What steps are used to solve the equation?
g – 8 = 14
Complete the statements.
First,
✔ add 8 to
both sides of the equation.
The solution of the equation is
✔ g = 22
.
Check the solution by substituting
✔ 22
for g and simplifying.
I keep struggling on this question can someone help me figure it out
Answers
Answer:
the last one
Step-by-step explanation:
(: