Help me with this please !
Answers
Answer:
True
Step-by-step explanation:
The formula for the circumference of a circle is:
C=2πr
So we can substitute in the numbers we have:
Radius=4, so:
C=8π (we multiplied the radius by 2)
So the statement is true.
Hope I... yeah you get it y now I've been answering your questions a lot.
I'm still gonna copyright it.
Copyright Potato 2019.
Answer:
True
Step-by-step explanation:
The circumference (C) of a circle is
C = 2πr ← r is the radius
For C = 8π, then
2πr = 8π ( divide both sides by 2π )
r = 8π ÷ 2π = 4
Hence the radius must be 4
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Answers
Answers
You need only set up a proportion.
11 cm/16.5 cm = 4 cm / x Cross multiply
11x = 16.5 * 4
11x = 66 ' Divide by 11
x = 66/11
x = 6
The expanded height is 6 cm Answer
Answers
=> A tank is filling a water from natural Spring.
=> 2 days ago water measured 10 feet deep
=> yesterday the water measured 12 feet deep
=> And the water rises the same amount each day. Algebraic expression is:
=> Since the filling of water in the tank is constant per day which means the water rises 2 feet per additional day.
=> let’s assign a variable for the number of days. Let’s have X
Now, let’s add the total of water depth 2 days ago until today.
=> 10(2 days ago) + 2(yesterday) + 2(today)
=> 14 feet
Then the algebraic expression would be:
=> 14 + 2x
where x is equals to the number of days that will pass.
Answers
Answer:
Future value is the value of an item calculated after certain years on a given value at a given certain interest rate.
Future value is always increasing in nature and when future value is decreasing it is know as Depreciate value.
And is calculated using the formula as stated
Where P is the principal amount that is the given amount for which we have t calculate the future value.
r is the rate of interest and it is the rate at which the given principal value is increasing.
n is the time period for which the principal value is kept.
Answers
The slopes of perpendicular lines are negative reciprocal of each other. That is, if you have a slope of 2/3, the perpendicular slope will be -3/2.
y = 2/3x + 3
is perpendicular to
y = -3/2x - 9
Only the slope matters in the equations. The y-intercept can be anything. I randomly chose +3 and -9.
Final answer:
Perpendicular lines have slopes that are negative reciprocals of each other. By using the slope-intercept form of a linear equation, you can find two equations for lines that are perpendicular to each other. An example pair of equations is y = 2x + 1 and y = (-1/2)x + 3.
Explanation:
In order for two lines to be perpendicular, their slopes must be negative reciprocals of each other. Let's say the equation of the first line is y = mx + b, where m is the slope. The equation of the second line that is perpendicular to the first line would have a slope of -1/m. So, you can choose any values for m and b for the first line and then find the slope of the second line using -1/m.
For example, let's say the equation of the first line is y = 2x + 1. The slope of this line is 2. The equation of the second line that is perpendicular to the first line would have a slope of -1/2. So, an example equation for the second line could be y = (-1/2)x + 3.
Therefore, two example equations of lines that are perpendicular to each other are y = 2x + 1 and y = (-1/2)x + 3.
Learn more about Perpendicular Lines here:
#SPJ3
Answers
x = (7 * 11)/3 = 25.7 ft