K=m-n÷y (make y the subject)
Answers
Answer:
y =
Step-by-step explanation:
When doing problems like these, you should go through the process like using PEMDAS:
P - Parenthesis ()
E - Exponents
M - Multiply x
D - Division ÷
A - Addition +
S - Subtraction -
1) Since there aren't any Parentheses, or exponents, we should then check for any use of Multiplication.
As shown, there are no shown methods of multiplying.
BUT there is Division, so we will do the opposite of division, which is multiplication.
K = m - n ÷ y
y(K = m - n ÷ y)y
^ Trying to multiply 'y' onto both sides, because when you do something to one side, you do to the other. ^
'y' then cancels out on one side, so you will be left with:
= m - n
But on the other side you will have:
Ky
So your problem will look like:
Ky = m - n
2) Since we are trying to get 'y' by itself, instead of multiplying now, we will be dividing, because:
K(y) = Ky or you can also say K x y = Ky
Back to the problem, we will now divide 'K' to both sides, as stated before:
What you do to one side, you do to the other:
'K' will cancel out on one side:
Leaving you with:
'y'
While the other side, will be left as:
So your final answer will be:
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Answers
Final answer:
Using the quadratic equation h = -16t² + 264 which represents the object's height after time, we find that it will take 4 seconds for the object to reach 8 feet above the valley floor.
Explanation:
In this case, you're asked to find out how much time it takes for an object dropped from an observation deck to drop to a point 8 feet above the valley floor. The height h, in feet, after time t, in seconds, is represented by the quadratic equation h = -16t² + 264. Set the equation equal to desired height, which is 8 feet in this case. So, you have -16t² + 264 = 8. Rearranging, you get -16t² = 8 - 264, or -16t² = -256. Divide by -16 yields, t² = 16. The principal square root of 16 is t = 4.
Therefore, it will take 4 seconds for the object to be 8 feet above the valley floor.
Learn more about Quadratic Equations here:
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Answers
The number of inches in 50.8 centimeters is 20 inches.
Given that, one inch is equivalent to 2.54 centimeters.
What is metric conversion?
Metric Conversion refers to the conversion of the given units to desired units for any quantity to be measured. The different unit of measurement resulted in the introduction of the "Metric System".
Number of inches in 50.8 centimeters = 50.8/2.54
=20 inches
Therefore, the number of inches in 50.8 centimeters is 20 inches.
To learn more about the metric conversion visit:
brainly.com/question/21244256.
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b) f(n) = 4 + 3n
c) f(n) = 3 + 4n
d) f(n) = 3 + 4(n - 1)
Answers
3 = 1st term
4 = common difference among the terms
n = term number you are looking for.
To check: 3, 7, 11, 15, ...
f(1) = 3 + 4(1-1) = 3 + 4(0) = 3 + 0 = 3
f(2) = 3 + 4(2-1) = 3 + 4(1) = 3 + 4 = 7
f(3) = 3 + 4(3-1) = 3 + 4(2) = 3 + 8 = 11
f(4) = 3 + 4(4-1) = 3 + 4(3) = 3 + 12 = 15
Answer:
its d
Step-by-step explanation:
B 1,250 m
C 100 m
D 50 m
Answers
Answer:
50 m
Step-by-step explanation:
The frequency of a radio wave varies inversely as its wavelength. This means that:
f α 1 / λ
=> f = c / λ
c is the constant of proportionality
Note: c is called the speed of the radio wave
A 250-meter wave has a frequency of 1,200 kHz.
This implies that:
1200 * 1000 = c / 250
=> c = 250 * 1200 * 1000
c = 300000000 m/s
Therefore, to calculate the wavelength of a wave that has a frequency of 6,000 kilohertz:
6000 * 1000 = 300000000 / λ
=> λ = 300000000 / 6000000
λ = 50 m
Its wavelength is 50 m.
Answers
20/3
Answers
The ratio of basketball card to football cards is 2 : 3.
What is the ratio?
A ratio indicates how many times one number contains another. If a and b are to objects then ratio of a to the b is given as a : b.
Now it is given that,
Number of football cards = 42
Number of basketball cards = 28
Hence,
Ratio of basketball cards to football cards = Number of basketball cards/Number of football cards
⇒Ratio of basketball cards to football cards = 28/42
⇒Ratio of basketball cards to football cards = 2/3
⇒Ratio of basketball cards to football cards = 2:3
Therefore,The ratio of basketball card to football cards is 2 : 3.
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28 : 42
7 into 28 is 4 and 7 into 42 is 6
28 : 42 = 4 : 6
2 into 4 is 2 and 2 into 6 is 3
28 : 42 = 4 : 6 = 2 : 3
So the simplified ratio of baseball cards to football cards is 2 : 3.
I hope this helps.