One friend claims that to find the height of the platform, you need to use the tangent ratio. Explain why her approach is or is not a reasonable
approach to finding the height of the platform.
Find the height of the platform. Explain the trigonometric ratio that you chose and why you chose it. Show your work.
Find the horizontal distance from the bottom of the ramp to the bottom of the platform. Show your work.
Answers
Answer:
x ≈ 1.64 my ≈ 3.09 mStep-by-step explanation:
ABC is right triangleAngle A and side AB givenSide BC to be foundUse sine of A to find the length of missing side:
opposite/hypotenuse = sinBC/AB = sin Ax/3.5 = sin 28x = 3.5* sin 28x = 3.5*0.47 ≈ 1.64 mHorizontal distance y is:
y = √3.5²-1.64²= √9.5604 = 3.09 mRelated Questions
Joe wants to buy a game that cost $60. He already has $20 and makes $5 per dog he walks, how many dogs does he had to walk to make enough to buy the game
Answers
Answer:
8 dogs
Step-by-step explanation:
He already has $20 and the game costs $60.Each time he walks a dog he earn $5 so he needs to walk 8 more dogs(5×8=40)
Answer:
8 more dogs
Step-by-step explanation:
$60-$20 =$40
1 dog= 5 dollars
? =40 dollars
4o÷5=8
=8 dogs
help me again and explain how you got the answer thans
Answers
A peice of fabric costs $5.29 a yard which is an estimated cost of 16.3 yards of fabric?
Answers
Answer:
90
Step-by-step explanation:
$5.29 * 16.3 = $86.227
=$86.23
86.23 could be rounded up to 90
help please!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Answers
Answer:
the first one is B the second one is D and the last one is A
Step-by-step explanation:
2y + 4 = 10
What is the first step in solving the
equation?
Answers
Answer:
Subtract 4 on both sides, then divide by 2 to find y
Step-by-step explanation:
Answer:
Its usually distribute or combine like terms but here we just solve.
Step-by-step explanation:
we do:
2y+ 4 = 10
-4 -4
----------------
2y 6
--- = ---
2 2
y = 3
Using the Multiplicative Inverse Property, what is the missing number in the following equation?
______ * 7/4 = 1
-7/4
4/7
7/4
-4/7
Answers
Answer:
7/4
Step-by-step explanation:
[tex]x\cdot \frac{7}{4}=1\\\\x\cdot \frac{7}{4}\cdot \frac{4}{7}=1\cdot \frac{4}{7}\\\\x\cdot 1 = \frac{4}{7}\\\\x=\frac{4}{7}[/tex]
Answer:
The answer is [tex]\frac{4}{7}[/tex].
Step-by-step explanation:
Due to the end result being 1, we can sufficiently say it is neither -7/4 nor -4/7, due to a positive number multiplied by a negative number always equating to a negative number.
Therefore, using the Multiplicative Inverse Property, we can find the result by dividing 1 over [tex]\frac{7}{4}[/tex]:
[tex]\frac{1}{\frac{7}{4}}[/tex]
[tex]= \frac{4}{7}[/tex]
Hence, the answer is [tex]\frac{4}{7}[/tex].
Hope this helped!
-2x2 - 5x + 4 when x = -3
Answers
Answer:
1
Step-by-step explanation:
-2x^2 - 5x + 4, x = -3
replace the x in the equation with -3
-2(-3)^2 - 5(-3) + 4
multiply/simplify
-2(9) + 15 + 4
-18 + 19
1
need the answer please thank you!
Answers
Answer:
a) 4/19
b) 15/19
c) 0 (0/19)
d) 1 (19/19)
Step-by-step explanation:
In the numerator you put the number of possibilities of your happy outcome. In the denominator you put the total number of possibilities. So the bag contains 4+15=19 marbles, so that will be your denominator in each answer.
Use the table below to answer the following questions:
What is the slope? (Write only the number)
What is the y-intercept? (Write only the number)
Write a linear equation y=mx + b to represent the table:
Answers
Answer:
Y = x + 10
Slope - 1/2
y-intercept - (0,10)
Y = 2x + 12
slope 2/1
y intercept (0,10)
Y = 4 x + 14
Slope 4/1
Y intercept (0,14)
Step-by-step explanation:
Consider the data set. 2, 3, 5, 6, 7
(a) Find the range.
(b) Use the defining formula to compute the sample standard deviation s. (Round your answer to two decimal places.)
(c) Use the defining formula to compute the population standard deviation σ. (Round your answer to two decimal places.)
Answers
Answer:
5 ; 2.07 ; 1.85
Step-by-step explanation:
Given the data:
2, 3, 5, 6, 7
The range : ( highest - lowest)
The range = (7 - 2) = 5
Sample standard deviation :
sqrt[Σ(x - m)²/ (n - 1)]
The mean (m) = Σx / n
n = sample size = 5
Σx / n ;
(2+3+5+6+7) / 5
= 23 / 5
= 4.6
[(2-4.6)^2 + (3-4.6)^2 +(5-4.6)^2 + (6-4.6)^2+ (7-4.6)^2] / (5 - 1)
= 17.2 / 4
= 4.3
Sqrt(4.3) = 2.07
Population standard deviation :
sqrt[Σ(x - m)²/ n]
The mean = m = 4.6
n = sample size = 5
[(2-4.6)^2 + (3-4.6)^2 +(5-4.6)^2 + (6-4.6)^2+ (7-4.6)^2] / 5
= sqrt(17.2 / 5)
= sqrt(3.44)
= 1.8547 = 1.85
The graph of a linear equation has a slope of -2 of passes through (-4,3)
A. y=-2x-5
B. y=-2x+5
C. y=-2x-2
D. y=-2x+5
And came someone explain how it’s fine if not
Answers
Answer:
I think D. y= -2x+5....
Write the slope-intercept form of an equation of the line that passes through (a, - 4) is parallel to the graph of 4x - y = 2 y = - 1/4 * x + 4 y = 1/3 * x - 4 y = 4x - 4 D y = - 4 - 4
Answers
The first questions answer:
Given (0, -4), 4x - y = 7. I converted the equation into slope intercept form and I got: y = 4x - 7. Once I had gotten that I put (0, -4) and the equation into Point-Slope Form and solved it: y - (-4) = 4(x + 0), y + 4 = 4x, y = 4x - 4 is the slope intercept form of your equation and point :)
Derek heard someone say that high school quarterbacks in Texas are almost all more than 6
feet tall. Derek wonders about the validity of that statement. He decides to collect some
data to estimate the mean height of high school quarterbacks playing in the state of Texas.
Since it is impractical to try to measure every quarterback’s height personally, Derek decides
to randomly collect a sample of the heights of 15 Texas high school quarterbacks.
The quarterback heights, to the nearest inch, Derek collected are:
69”, 72”, 75”, 68”, 70”, 67”, 75”, 73”, 69”, 71”, 74”, 75”, 68”, 70”, 73”
Using this data, estimate the population mean of the heights of high school quarterbacks in
Texas to the nearest inch
Answers
Answer: 71 inches
Step-by-step explanation:
please awnser asap asap
Answers
9514 1404 393
Answer:
h > 0, only integers
Step-by-step explanation:
One can only buy integer numbers of packages of hotdogs, so the domain is integer values.
Since we "must" buy more than 0 packages, the appropriate domain specification is ...
h > 0, only integers
2. Which equation shows the slope-intercept form of the line passing through
(0, 1) and (2, 0)?
A. y = -2X+1 B. y = x-1 C. y = 2X - 1 D.y=- x + 1
Answers
what is the correct solution to (x+2)(x+5)
Answers
Answer:
x^2+7x+10
Step-by-step explanation:
multiply the first by first and first by second
multiply the second by first and second by second
If /II m, what is the value of x?
not enough information
43°
143
m
137
43
Answers
Answer:
X is 137.
Step-by-step explanation:
Because they are parallel, we can see that because of alternate exterior angles, the angle next to X is 43, and we subtract that from 180 which gives us x, or 137.
Suppose y varies directly with x. When
x is 3, y is 15. What is y when x is 10?
Answers
Answer:
Y= 30
Step-by-step explanation:
Because proportionally it makes sense as well as it multiplication.
the sum of two numbers is 58 and the difference is 2. What are the numbers ?
Answers
28 and 30 is the answer
What property is used to rewrite (x + 2)(y + 4z) as y(x +2) + 4z(x + 2)?
Associative Property of Addition
Commutative Property of Addition
Distributive Property
Associative Property of Multiplication
Answers
Answer:
its either c or d I think
I don't know how to solve this at all. please help
Answers
Answer:
5. 97
Step-by-step explanation:
Well, we know that all we have to do is add QRP and PRS. so 71+25 is 96 (but put 97). For the other one you can do 2x-5=x+1. Then you just solve for x. For the y value you do the same thing, 3y=5y+3. So, x=2 but y=1.5 but its not an answer choice... I know the second one didn't help you, sorry. :(
plzz answerr!!!!
will mark as brainlist!!
Answers
Answer:
16160
Step-by-step explanation:
(2021#2020)= [tex]2021^2-2020^2=4041[/tex]
(2020#2019)=[tex]2020^2-2019^2=4039[/tex]
finally, (2021#2020)#(2020#2019)= [tex]4041^2-4039^2=16160[/tex]
i 15 =
A -1
B 1
C -i
d i
Answers
Answer:
C. -i
Step-by-step explanation:
i^n is expondential. i^1 = i
i^2 = -1
i^3 = -i
i^4 = 1.
Answer:
it is i
Step-by-step explanation:
Find the distance between the following points (1 , 6) and (13 , -3)
Answers
Answer:
15 units
Step-by-step explanation:
[tex]distance \: between \: 2 \: points \\ = \sqrt{(x1 - x2)^{2} + (y1 - y2)^{2} } [/tex]
Using the formula above, distance
[tex] = \sqrt{ {(13 - 1)}^{2} + {( - 3 - 6)}^{2} } \\ = \sqrt{ {12}^{2} + {( - 9)}^{2} } \\ = \sqrt{144 + 81} \\ = \sqrt{225} \\ = \textbf{15 units}[/tex]
Salena has twice as many DVDs as Jolene,and Jolene has one third as many as Brodie.What fraction of the total DVDs has Salena?
Answers
Answer: 1/3
Step-by-step explanation:
Assume Jolene's DVDs are x.
Selena has twice as many DVDs as Jolene so Selena has 2x DVDs.
Jolene has 1/3 as many DVDs as Brodie which means that Brodie has 3 times as many DVDs as Jolene which is 3x.
Total DVDs = x + 2x + 3x
= 6x
Salena has 2x.
Fraction = 2x/6x
= 1/3
please answer asap
25 points
Answers
Answer:
(-5,7) that will be your answer.
express 0.361 as a fraction
Answers
Answer:
361/1000
Hope I helped
Answer:
179/495
Step-by-step explanation:
x = 0.3616161.......... ---------------(I)
Multiply by 1000
1000x = 361.616161......
Multiply (I) by 10
10x = 3.616161........
1000x = 361.6161......
10x = 3.6161........ {Now subtract}
990x= 358
x = 358/990
x = 179/495
Please help me im not asking for much
Answers
Answer:
adding the two equations together
(1.5,8)
Step-by-step explanation:
8x=12
x=1.5
y=8
Answer:Looooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooool
Step-by-step explanation:
5 points
You went to go buy a PlayStation 5 that was on sale for 25% off. The
cashier adds tax the total your bill is $529.99. AFTER you take off the 25%
for the sale you pay the cashier $600, then how much change will you
receive back? Round to the nearest hundredth.
Answers
Answer:
70.01 so 70
Step-by-step explanation:
Answer:
70
Step-by-step explanation:
600 - 529.99 = 70.01
70.01 is rounded to 70
Answer is 70
Which process would produce the complex number w2? Add 3 – i to w1. Add –9 + 3i to w1. Subtract 3 – i from w1. Subtract –9 + 3i from w1.
Answers
Answer
B.) Add [tex]-9+3i[/tex] to [tex]w1[/tex]
Step-by-step explanation:
Just took the test and D was wrong.