Answers
Answer:
AB
Step-by-step explanation:
Related Questions
true or false
1. the 5^n , n is known as exponent?
Answers
Answer:
true
Step-by-step explanation: it has to be just tj=gink bout it.
Hard qn on Trigonometric equations and identities, please help
Answers
Answer:
(i) [tex]OE = 0.6\cdot \sin \theta + 1.4\cdot \cos \theta[/tex], (ii) [tex]\theta \approx 33.368^{\circ}[/tex], (iii) The maximum value of OE is approximately 1.523 meters, which is associated with an angle of approximately 23.199º.
Step-by-step explanation:
(i) From Geometry, we get that sum of internal angles of trangle AOD.
[tex]\angle A + \angle O + \angle D = 180^{\circ}[/tex] (1)
If we know that [tex]\angle O = 90^{\circ}[/tex] and [tex]\angle A = \theta[/tex], then the value of [tex]\angle D[/tex] is:
[tex]\angle D = 180^{\circ}-90^{\circ}-\theta[/tex]
[tex]\angle D = 90^{\circ}-\theta[/tex] (2)
But we also have the following identity:
[tex]\angle D +\angle D' +\angle D'' = 180^{\circ}[/tex] (3)
If we know that [tex]\angle D = 90^{\circ}-\theta[/tex] and [tex]\angle D' = 90^{\circ}[/tex], then the value of [tex]\angle D''[/tex] is:
[tex]90^{\circ}-\theta +90^{\circ}+\angle D'' = 180^{\circ}[/tex]
[tex]\angle D'' = \theta[/tex] (4)
By Trigonometry, we derive the following formula:
[tex]OE = OD +DE[/tex]
[tex]OE = AD\cdot \sin A +CD\cdot \cos D''[/tex] (5)
If we know that [tex]AD = 0.6\,m[/tex], [tex]CD = 1.4\,m[/tex], [tex]A = \theta[/tex] and [tex]D'' = \theta[/tex], then the value of OE is:
[tex]OE = 0.6\sin \theta + 1.4\cos \theta[/tex] (6)
(ii) If we know that [tex]OE = 1.1\,m[/tex], then the value of [tex]\theta[/tex]:
[tex]0.6\cdot \sin \theta + 1.4\cdot \cos \theta = 1.1[/tex]
By trial and error, we find that [tex]\theta \approx 33.368^{\circ}[/tex].
(iii) Let [tex]OE = 0.6\cdot \sin \theta + 1.4\cdot \cos \theta[/tex], the first and second derivatives of the function are, respectively:
[tex]OE' = 0.6\cdot \cos \theta -1.4\cdot \sin \theta[/tex] (7)
[tex]OE'' = -0.6\cdot \sin \theta -1.4\cdot \cos \theta[/tex] (8)
We equalize the first derivative of the function to zero and solve for [tex]\theta[/tex]:
[tex]0.6\cdot \cos \theta - 1.4\cdot \sin \theta = 0[/tex]
[tex]1.4\cdot \sin \theta = 0.6\cdot \cos \theta[/tex]
[tex]\tan \theta = \frac{0.6}{1.4}[/tex]
[tex]\theta \approx \tan^{-1} \frac{0.6}{1.4}[/tex]
[tex]\theta \approx 23.199^{\circ}[/tex]
And we evaluate the second derivative:
[tex]OE'' = -0.6\cdot \sin 23.199^{\circ}-1.4\cdot \cos 23.199^{\circ }[/tex]
[tex]OE'' = -1.523[/tex]
Then, the critical value is associated with an absolute maximum.
The maximum value of OE is:
[tex]OE = 0.6\cdot \sin 23.199^{\circ}+1.4\cdot \cos 23.199^{\circ }[/tex]
[tex]OE \approx 1.523\,m[/tex]
The maximum value of OE is approximately 1.523 meters, which is associated with an angle of approximately 23.199º.
Multiply.
(2x2 - 4x)(6x2 - 5x)
A. 12x4 - 10x3 + 20x2
B. 1244 - 10x2 + 20x
C. 1244 - 34x2 + 20%
O D. 1244 - 34x3 + 20x2
Answers
Answer:
You would have to distribute each one or use the box method whinch gives you :
12x^4 − 34x^3 + 20x^2
7. In a right angles triangle if an angle measures 35º, then find the
measure of the third angle.
Answers
Answer:
55°
Step-by-step explanation:
A right angle is = to 90°
90° + 35° = 125°
Angles in a triangle add up to 180
180 - 125 = 55
Answer:
The answer is 55
Step-by-step explanation:
If all the angles of a triangle add up to 180°, and one of the angles are 35° and another is obviously 90° that means you have to add up the two angles, then subtract that answer from 180°
90 + 35 = 125
180 - 125 = 55
Hope you understand!
PLZ HELP !!!! WILL MARK BRAINLIEST, THIS IS DUE IN 5 MINUTIES
Answers
Answer:
B Im pretty sure
Step-by-step explanation:
Answer:
B
Step-by-step explanation:
just going by the trend this makes the most sense
At the beginning of the year, Jocelyn had $35 in savings and saved an
additional $17 each week thereafter. Sydney started the year with $95 and
saved $12 every week. Let J represent the amount of money Jocelyn has
saved t weeks after the beginning of the year and let S represent the amount
of money Sydney has saved t weeks after the beginning of the year. Write an
equation for each situation, in terms of t, and determine the interval of time
when Jocelyn has more in savings than Sydney.
Answers
J = 17t + 35
S = 12t + 95
Again, I'm not sure how to do the second part
Which of the following sets of numbers could not represent the three sides of a
triangle?
O {6, 14, 18}
O {11, 26, 36}
O {12, 14, 25}
O {10, 13, 23}
Answers
The vertices of ABC are A (-5, 5), B (-2,5), C(-2,3).
1. Graph the figure ABC.
2, Translate each vertex 3 units down and 4 units to left.
3. Draw and label the vertices A'B'C.
Answers
Answer:
It will be in the attachment below.
Step-by-step explanation:
Translating a vertex 3 units down and 4 units to the left means that the x coordinate is 4 less than before and the y is 3 less. So, subtract 4 from -5 to get -9; from -2 (twice) to get -6 (twice), and subtract 3 from 5 (twice) to get 2 (twice); from 3 to get 0. So, the new coordinates are (-9, 2), (-6, 2), and (-6, 0). The original shape is in red, and the translated shape is blue.
please help i dont understand
Answers
Answer:
ok
Step-by-step explanation:
AD is 14mm (all sides of rhombus is the same in length)
CBD 32
ADC 44
AED 58
DAC 78
BE 16.8
give me a brainlist thanks
Which equation has the same solution as 10x - x + 5 = 41
Answers
Answer:
20x-2x+10=82
Step-by-step explanation:
This is the answer because look all your doing is multiplying the values from the first equation by 2 meaning the proportions of the values are the same resulting in the same solution.
Write an equation of the line that passes through (2,2) and is parallel to the line y= 7x
Answers
Answer:
y = 7x + b must have the same slope
2 = 7(2) + b
noah put 40 on his fare card. everytime he rides public transportation, 2.50$ is subtracted from the amount available on his card
Answers
Answer:
if you wanted to know how long it would take for it to all be depleted it would be. 16 times noah can go on public transportation
Step-by-step explanation:
PLEASE HELPP MEEEE 10 PT
What is the rule that describes the translation that maps ΔLMN onto ΔL'M'N?
A.3 units right and 4 units up
B.3 units left and 4 units up
C.3 units right and 4 units down
D.3 units left and 4 units down
Answers
Answer:
Translation by -4 units on the y-axis, and + 3 units on the x-axis.
Step-by-step explanation:
The answer is C
I need help with this question
Answers
because the sinB = AC/AB (=h) and the cosB= CB/AB but the sinA = CB/AB and the cosA =AC/AB
=> SinB = CosA= t; CosB = sinA=h
=>SinA-CosA = t-h
Lesson 2 Practice Problems
1. Which of the changes would keep the hanger in balance? Select all that apply.
A. Adding two circles on the left and a square on the right
B. Adding 2 triangles to each side
C. Adding two circles on the right and a square on the left
D. Adding a circle on the left and a square on the right
E. Adding a triangle on the left and a square on the right
Answers
what’s the slope of -5,-6 and 12,7 I need help with how to do the math to thanks
Answers
Answer:
m = 13\17
Step-by-step explanation:
M represents the slope
7--6
______
12- -5
= 13\17
May i please get brainlyist
Someone plz help me
Answers
Answer:
×2 , -2
Step-by-step explanation:
3×2= 6
6-2=4
4×2=8
8-2 =6
Answer:
x2, -2
Step-by-step explanation:
To figure out this problem, try applying the answers to the numbers already placed.
As seen in the sequence, First you multiply the number by two and therefore get the second number. Then you take that number and subtract two in order to find the next value, You repeat this process in order to find infinite values of the sequence.
Given f(x)=x^3 and g(x)= 1-5x^2
Answers
4 people can stay at a hotel for a week for 42£. Find the hotel cost bill for 3
people for a week?
Answers
Answer:
31.5
Step-by-step explanation:
divide 42 by 4 you would get 10.5, then multiple 10.5 by 3 and you would get 31.5 thats the answer
The lines represented by the equations 25y- 20x=100 and 5y - 4x = 20 are
Answers
Answer:
The system of equations represent the same line ⇒ B
Step-by-step explanation:
In the system of equations ax + by = c and dx + ey = f, if
a = d, b = e, and c = f, then the system of the equations represent the same linea = d, b = e, and c ≠ f, then the system of the equations represent two parallel linesa ≠ d, and/or b ≠ e, and/or c ≠ f, then the system of the equations represent two intersecting lines∵ The one line represented by the equation 25y - 20x = 100
→ Divide the terms of the equation by 5 to simplify it
∴ 5y - 4x = 20 ⇒ (1)
∴ a = 5, b = -4, c = 20
∵ The other line represented by the equation 5y - 4x = 20 ⇒ (2)
∴ d = 5, e = -4, f = 20
→ Compare the two equations
∵ a = d, b = e, c = f
→ By using the 1st case above
∴ The system of equations represent the same line
[tex]2(78[/tex]
what is the answer
Answers
Answer:
The answer to the question provided is 156.
whats the answer to the math problem -9n+10n
Answers
Answer:
Just N
Step-by-step explanation:
Combine like terms to leave you with: 1n
Answer:
n
Step-by-step explanation:
-9n+10n=1n/n
Also can be 10n-9n=1n/n
How many more sides does an octagon have than a pentagon?
Answers
Answer:
an octagon has 3 more sides then a pentagon
Step-by-step explanation:
A pentagon has 5 sides while a octagon has 8 sides and 8 -5=3
Answer:
octogon: 8 sides
pentagon: 5 sides
Explanation:
an octogon has three more sides than a pentagon.
Antonia is buying a Special Edition PS5 Game that regularly costs $90. It is on sale for 40% off with an additional 25% off the discounted price.
What is the final sale price of the video game?
Answers
Answer:
$31.50
Step-by-step explanation:
Hope this helped!!
(I already answered this but it got deleted so, I'm too lazy to explain, sorry.)
Two sixth grade classes are raising money. Mrs. Shen's class raises $120. Mr. McClary's class raises 50% of the amount Mrs. Shen's class raises. How much money do the two classes raise in all? A $60 B $170 C $180 D $240 Jake chose A as the correct answer. How might he have gotten that answer? "X"
Answers
Answer:
C, He got that answer by thinking that the question was asking how much Mr.McClary's class made
Step-by-step explanation:
Mrs.Shen Raised $120
Mr. McClary raised $60 (50% of 120)
120
+60
180
what is 5x(2y+2) as a equivalent expression
Answers
Answer:
x ( 10 y + 10 )
Step-by-step explanation:
10 x ( y + 1 )
10 x y + 10 x
x ( 10 y + 10 )
hope i helped!
select the equation that has no solution
Answers
Answer:
8(x-3)+14=2(4x+5)
Step-by-step explanation:
Look at the attachment for further explanation
Hope this helps (:
Determine whether the graph represents a linear or non-linear function. Explain
A. Non-linear, graph is a curve.
B. Linear; graph is a straight line.
С. Non-linear, graph is a straight line.
D. Linear, graph is a curve.
Answers
I need help ASAP!!! I don't understand how to do this please show the work too
Answers
In the United States, 13 out of every 20 cans are recycled. What percentage of cans are recycled?
Answers
Answer: 65%
Step-by-step explanation: divide 13/20 and get .65 which is 65%
