Answers
Answer:
See Explanation
Step-by-step explanation:
[tex] \csc \theta \: \cos \theta \: \tan \theta = 1 \\ \\ LHS = \csc \theta \: \cos \theta \: \tan \theta \: \\ \\ = \frac{1}{ \sin \theta} \: \times \cancel{ \cos \theta }\: \times \frac{ \sin \theta}{ \cancel{ \cos \theta }} \\ \\ = \frac{1}{ \cancel{ \sin \theta}} \: \times \cancel{ \sin \theta} \\ \\ = 1 \\ \\ = RHS \\ \\ hence \: proved[/tex]
Answer:
a) Only the first one is an identity.
Step-by-step explanation:
1). 8 cos O tan O csc O = 8 simplifies to:
cos O tan O csc O = 1
cos O * (sin O / cos O) * (1 /sin O)
= cos O sin O / cos O sin O
= 1
So it is identity.
2) 13 sec^2 O/ cos^2 O - tan^2 O / cos^2O
= 13 sec^2 O - tan^2 O / cos^2 O
Now sec^2 O = 1 + tan^2 O, so we have:
(13( 1 + tan^2 O) - tan^2 O) / cos^2 O
= (12 tan^2 O + 13) / cos^2 O
This is not always = 2 so its not an identity.
Step-by-step explanation:
Related Questions
Four DVDs cost $84. If each DVD costs the same, how much does one DVD cost
the answers are these:
$16
$21
$26
$18
Answers
Answer:
one dvd costs $21
On Monday, a local hamburger shop sold a combined total of 352 hamburgers and cheeseburgers. The number of cheeseburgers
sold was three times the number of hamburgers sold. How many hamburgers were sold on Monday?
Answers
To answer this question, you could use algebra.
If the number of cheeseburgers was three times the number of hamburgers, we could write this as.
Cheeseburgers= 3x and Hamburgers = x
We can then write an expression for the total number of burgers.
4x = 352
Divide both sides by four.
x = 88
Because hamburgers = x in relation to the cheeseburgers, that would mean the number of hamburgers sold on monday was 88.
A pan is heated to 409°F, then removed from the heat and allowed to cool in a kitchen where the room temperature is a constant 71°F. The formula below can be used to find D, the difference in temperature between the pan and the room after t minutes. D = 338e^-0.03t What is the approximate temperature of the pan after it has been away from the heat for 8 minutes? A. 336.9°F B. 500.7°F C. 265.9°F D. 194.9°F
Answers
Answer: C. [tex]265.9^{\circ}F[/tex]
Step-by-step explanation:
Given: The formula below can be used to find D, the difference in temperature between the pan and the room after t minutes.
[tex]D = 338e^{-0.03t}[/tex]
At t= 8 minutes, we get
[tex]D = 338e^{-0.03(8)}\\\\\Rightarrow\ D = 338e^{-0.24}\\\\\Rightarrow\ D = 338(0.786627861067)\\\\\Rightarrow\ D = 265.88\approx265.9^{\circ}F[/tex]
The approximate temperature of the pan after it has been away from the heat for 8 minutes= [tex]265.9^{\circ}F[/tex]
Important help asap.
Answers
Answer: y = 5x
Step-by-step explanation:
(check to make sure it matches the graph)
y = 5(0) = 0
y = 5(2) = 10
y = 5(4) = 20
y = 5(6) = 30
y = 5(20) = 100 dollars
y= -x +3 and y = x - 1
Answers
Answer:
x=2 and y=1
Step-by-step explanation:
Rewrite equations:
y=−x+3;y=x−1
Step: Solve
y=−x+3
Step: Substitute−x+3foryiny=x−1:
y=x−1
−x+3=x−1
−x+3+−x=x−1+−x(Add -x to both sides)
−2x+3=−1
−2x+3+−3=−1+−3(Add -3 to both sides)
−2x=−4−2x−2=−4−2
(Divide both sides by -2)
x=2
Step: Substitute2forxiny=−x+3:
y=−x+3
y=−2+3
y=1(Simplify both sides of the equation)
Hope this Helps you :)
PLEASEEEE SOMEONE HELP ME WITH THIS ITS DUE IN A COUPLE HOURS!!!!! FOR trigonometry I
Answers
Answer:
4/8.1 is the answer.
Step-by-step explanation:
sin Θ = opposite side / hypotenuse
sin ∠F = 4/8.1
Answer: 4/8.1
Step-by-step explanation:
SOH CAH TOA
So son uses opposite and hypotenuse
Opposite from the angle of DFE is 4 and hypotenuse is 8.1 so
sin-1(4/8.1)= angle DFE
A cone with a volume of 1152π cubic meters has a radius of 12 meters. Which of these statements is correct?
Select one:
Its height is two thirds the length of its radius.
The length of its radius is twice its height.
The length of its radius is two thirds its height.
Its height is twice the length of its radius.
Answers
Answer:
Step-by-step explanation:
B
Answer: it’s hight is twice the length of its radius
Step-by-step explanation:
What is the scale factor?
Answers
Which expression is equivalent to c - 5 - 9c
Answers
Answer:
c - 9c - 5
-8c - 5
please give me brainliest
1
The double box-and-whisker plot shows the test scores earned in Ms. Ricks' first and second period classes. Based on the
information presented, select all the statements that correctly compare to the two classes,
Test Scores
1st Period
2nd Period
50 55 60 65 70 75 80 85 90 95 100
A The highest score was obtained in Ms. Ricks' second period class.
B The lowest score was obtained in Ms. Ricks' first period class.
C The Interquartile Range (IQR) is higher in Ms. Ricks' first period class.
D The Interquartile Range (IQR) is higher in Ms. Ricks' second period class.
EMs. Ricks' first period scored better overall than second period.
F Ms. Ricks' second period scored better overall than first period.
Answers
Answer:
B and c and also f is the answer
1st Period: Minimum = 60, Lower Quartile = 75, Median = 80, Upper Quartile = 90, Maximum = 98
* Range = 98-60 = 38; *Interquartile Range = 90-75 = 15
2nd Period: Minimum = 70, Lower Quartile = 80, Median = 85, Upper Quartile = 91, Maximum = 95
* Range = 95-70 = 25; *Interquartile Range = 91-70= 21
Correct Answers: B, C, F
B - lowest score was a 60 in first period
C - IQR in 2nd period is 21, which is higher than 15 in first period
F - Approximately 75% (Q1-Q3) of first period scores are higher than 75% (Q1-Q3) of second period.
Correct answers are :-
B - lowest score was a 60 in first period
C - IQR in 2nd period is 21, which is higher than 15 in first period
F - Approximately 75% (Q1-Q3) of first period scores are higher than 75% (Q1-Q3) of second period.
What is statistics?The practice or science of collecting and analysing numerical data in large quantities, especially for the purpose of inferring proportions in a whole from those in a representative sample.
1st Period: Minimum = 60, Lower Quartile = 75, Median = 80, Upper Quartile = 90, Maximum = 98
* Range = 98-60 = 38; *Interquartile Range = 90-75 = 15
2nd Period: Minimum = 70, Lower Quartile = 80, Median = 85, Upper Quartile = 91, Maximum = 95
* Range = 95-70 = 25; *Interquartile Range = 91-70= 21
Hence the solutions are:-
B - lowest score was a 60 in first period
C - IQR in 2nd period is 21, which is higher than 15 in first period
F - Approximately 75% (Q1-Q3) of first period scores are higher than 75% (Q1-Q3) of second period.
To know more about statistics follow
https://brainly.com/question/15525560
#SPJ2
Help I’ll give brainliest
Answers
Answer:
30 minutes
Step-by-step explanation:
The hare and tortoise meet in 30 minutes at 240 feet.
Answer:
30minutes
Step-by-step explanation:
Tortoise = Hare
2m + 180 = 8m
collect like terms
180 = 8m - 2m
180 = 6m
divide both sides by 6
m = 180/6
m = 30
It will take 30 minutes for the tortoise and hare to meet.
The cost of a gym membership is a onetime fee of $140, plus a monthly fee of $40, Brendan wrote a check for $500 to pay his gym membership for a certain
number of months, including the onetime fee. How many months of the members did he pay?
Answers
Answer:
9 months
Step-by-step explanation:
Given data
One time fee= $140
Monthly fee= $40
Total amount of check = $500
The expression that describes the situation is given as
y=mx+c
where y= the total amount of the check
m= the monthly fee
x= the number of months
c= the one time fee
Substitute
500=40x+140
500-140=40x
360=40x
x= 360/40
x=9
Hence the number of months is 9 months
Please help me in math
Answers
1. x[tex]\\1. x_{1}=-4, x_{2}=-3\\2. x_{1}=-4, x_{2}=9\\3. x_{1}=-5, x_{2}=8\\4. x_{1}=-4, x_{2}=1.5\\5. x_{1}=-4, x_{2}=4\\6. x_{1}=2, x_{2}=4\\7. x_{1}=1.75, x_{2}=1.75\\8.x_{1}=-\sqrt{7}-6 , x_{2}=\sqrt{7} -6\\9. x_{1}=-2, x_{2}=1\\1. x_{1}=-8, x_{2}=8[/tex]=-4, x2=-3
2.
Please help! Also how do you know?
Answers
Answer:
A. All four sides must be congruent.
Step-by-step explanation:
A quadrilateral has four sides. A rhombus has four equal sides, which are congruent. The angles can be different. It doesn't have four lines of symmetry. One triangles sums to 180 degrees not 4. 4 triangles would sum up to 720 degrees
find the range of the data. 71, 67, 76, 66, 68, 79, 78, 70
Answers
Answer:
the range is 13
Step-by-step explanation:
Range is the largest number subtreacted from the smallest. In this case, it will be, 79-66=13
Answer:
79 - 66 = 13
Range: 13
A 13.5-m fire truck ladder is leaning against a wall. Find the distance d the ladder goes up the wall (above the fire truck) if the ladder makes an angle of 59 22' with the horizontal.
Answers
Answer:
11.6m
Step-by-step explanation:
A 13.5-m fire truck ladder is leaning against a wall. Find the distance d the ladder goes up the wall (above the fire truck) if the ladder makes an angle of 59 22' with the horizontal.
We solve the above question using the Trigonometric function of Sine.
sin θ = Opposite/ Hypotenuse
Hypotenuse = Length of the ladder = 13.5m
Opposite = d
θ = 59° 22'
= 59° + 22/60
= 59° + 0.367
= 59.367°
Hence,
sin 59.367 = d/13.5m
d = sin 59.367 × 13.5m
d = 11.616057416m
Approximately = 11.6m
Therefore, the distance d the ladder goes up the wall is 11.6m
PLEASE HELP ILL GIVE BRAINLY
Answers
Answer:
40.2
Step-by-step explanation:
1. Find the total surface area of the shape below:
9 cm
8 cm
10 cm
8 cm
12 cm
Answers
Answer:
There isn't the picture
17. Find the volume of the rectangular prism. (1p Not drawn to scale.
Answers
Answer:
The answer is 240 m^3.
Step-by-step explanation:
Find the 31st term 13,22,31,...
Answers
Answer:
The answer is 5
Step-by-step explanation:
Answer: an=9n-5
Step-by-step explanation:
that would leave you with the answer 5 !
i hope this helped! C:
What is the equation of the line that passes through the point (-6,7) and has a slope of -5? Write the equation in slope intercept form
Answers
Answer:
y = -5x - 23
Step-by-step explanation:
Point-slope form:
y - 7 = -5(x + 6)
rearrange:
y - 7 = -5x - 30
y = -5x - 23
Help me pls pls help
Answers
This means (8x2)-(4x2) is the correct answer!!
Hope this helps :)
Answer:
The last one
Step-by-step explanation:
This is because 8x2 is doubling8 and then it also asks to multiply 4 and 2
Lastly it says subtract second number from first which means subtract 4 by 2 from 8 by 2
Hope this makes sense
Which lines are perpendicular to 3x + 6y = 5? Select all that apply.
A. 3x + 6y = 10
B. y = 2x - 1
C. y - 4 = 2(x + 7)
D. x - 2y = -6
Answers
The lines which are perpendicular to 3x + 6y = 5 are; Choice B and C; y = 2x - 1 and y - 4 = 2(x + 7).
Perpendicular linesFrom the task content, it follows that the given equation is; 3x+ 6y = 5.
By rewriting the equation in slope intercept form; it follows that; y = (-1/2)x +5/6. Hence, the slope of the line is; -1/2.
From line geometry, it follows that two lines are perpendicular if; m1 × m2 = -1.
Therefore, a line perpendicular to the given line will have a slope of 2.
From the given option, the lines which are perpendicular to 3x + 6y = 5 upon conversion to the Slope-intercept form are; Choice B and C.
Read more on perpendicular lines;
https://brainly.com/question/1202004
it it a acute, obtuse, or Right someone plzzzz help me
Answers
Answer:
Acute angle
Step-by-step explanation:
Obtuse are a bit slanted Right angles are Shaped like an L
Answer:
Obtuse
Step-by-step explanation:
This is an obtuse triangle. Because the degrees of the angle is more than 90 degrees. A right triangle's degrees is 90 exactly and usually has a square marking the angle, an acute is less than 90 degrees for the angle.
I hope you understand this now! :)
volume of cylinder in terms of pi
6cm radius
5cm height
Answers
Answer: V≈565.49
Step-by-step explanation:
V=πr2h=π·62·5≈565.48668
Giving brainliest pleeeaaasssse help!
If heat transfers from hot to cold, and stops when two objects reach the same temperature, explain why it is possible for the inside of your car to be hotter than the air outside on a hot summer day.
Does a gas give off or absorb energy when it turns into a solid? Explain your answer.
You dont have to answer both just helping me with one would help me out!!! :)
also robot scammers stop giving me random links
Answers
Answer:
1. Consider a hot pot taken off the stove and placed on a tile countertop. At first it cools quickly. As it cools, the difference in temperature between the pot and the room air becomes less, and so it takes a long time for the pot to lose enough heat to match room temperature. Two objects at the same temperature are said to be in equilibrium.
2. When a liquid changes into a gas it absorbs energy. When it changes into a solid it gives off energy...If a solid (dry ice for example) is allowed to sublimate into a gas, it absorbs heat - that's why it feels cold when you touch ice. So, if a gas changes into a liquid, it give off heat as an opposite effect. Anytime you compress a gas, it gets warmer.
Divide. Write your answer as a fraction or a mixed number in simplest form.
3 3/4 divided by 1 1/8
Answers
Answer:
I used a calculator.
Step-by-step explanation:
mixed number form 3 1/3
exact form 10/3
which answer choice ?
Answers
Answer:
the fourth one
Step-by-step explanation:
[tex]\frac{2x^{-3}y^{-2}}{z^{4} }[/tex]
Answers
I hope I did something for you
Which point is located at (4,-2)? A B C D
Answers
Answer:
B
Step-by-step explanation:
ordered pairs are (x,y) meaning the first value in the ordered pair would be the value you find on the x axis (horizontal) and the second value in the ordered pair would be the value you find on the y axis (vertical).