Step-by-step explanation:
Step 1 Try to draw a perfect circle
Step 2 Divide into 12 equal sections if you can
A circle has 2 pi radians or 360 degrees in it
Divide 2 pi by 12
[tex] \frac{2\pi}{12} [/tex]
Which equal
[tex] \frac{\pi}{6} [/tex]
For every nth sector you on multiply the nth sector your on by pi/6
For example let say ur on second sector.
[tex] \frac{\pi}{6} \times 2 = \frac{2\pi}{6} [/tex]
or
[tex] \frac{\pi}{3} [/tex]
Let say ur on the 6th sector
[tex] \frac{\pi}{6} \times 6 = \frac{6\pi}{6} [/tex]
or
[tex]\pi[/tex]
let's consider all possible rectangles with the same area of 30 sq inches. lets say that the height of this much rectangles y and the base is x. how would y depend on x
Answer:
Step-by-step explanation:
area = xy = 30 in²
y = 30/x
Answer:
30/x
Step-by-step explanation:
rsm
Marisol constructed a triangle. One angle in the triangle has a measure of 40°. Another angle in the triangle has a measure of 80°. What is the measure, in degrees, of the third angle in Marisol’s triangle?
Answer:
A triangles angle always equal to 180 degrees. So if you add up what you already have which is 80+40=120
factorise the equation 9x^2 - 4
Answer:
Step-by-step explanation:
a² - b² = (a +b)(a - b)
9x² - 4 = (3x)² - 2²
= (3x + 2 )(3x - 2)
graph the line with slope -1/3 passing through the point (5,-4)
Answer:
Look at the image !!
Step-by-step explanation:
I hope this helps :D
Suppose f(x)= 4x – 2
and g(x) = -2x + 1.
Find the value of
f(-1)/g(-3)
Step-by-step explanation:
f(-1)=4*(-1)-2=-4-2=-6
g(-3)=-2*(-3)+1=6+1=7
f/g=-6/7
write an equation of the form y equals MX for the line shown below if appropriate use the decimals for the slope 2.5 0.0
Answer:
y = 2.5x
Step-by-step explanation:
A triangle has two sides of 30 meters and 26 meters, and the angle between them is an obtuse angle. If the area of the triangle is 300 sq. Meters, find the measure of the obtuse angle (to the nearest degree).
Answer:
130°
Step-by-step explanation:
Using the formula
Area of the triangle = 1/2 absin theta
a and b are the sides
theta is the obtuse angle
Given
a = 30m
b = 26m
Area = 200m²
Required
theta
Substitute into the formula;
300 = 1/2(30)*(26)sin theta
300 = 15*26sin theta
300 = 390 sintheta
sin theta = 300/390
sin theta = 10/13
sin theta = 0.7692
theta = arcsin(0.7692)
theta = 50.28degrees
Since the angle is obtuse, it must lie between 90 and 180degrees
theta = 180-50.28
theta = 129.72°
Hence the measure of the obtuse angle to the nearest degree is 130°
NEED IT ASAP
The graph shows a proportional relationship between the c cups of
flour used and the number of m muffins baked.
Identify the constant of proportionality from the graph. (The picture is the second part to the question)
A) 1
B) 2
C) 4
D) 8
Answer:
Step-by-step explanation:
The answer is c and the second part im not sure
Someone plz help me I will give brainliest btw it’s not “decimals”
Answer:
It will not fit.
Step-by-step explanation:
The mat is 1/2 by 2/3. So, lets add that together.
1/2 + 2/3 = 7/6
Now there are 24 sixths in a fourth.
So subtract 24 - 4 = 17
Final answer would be 17/4. Still way to big to fit in the 1/4 step.
Hope this Helps!!:)
btw. Im back home now :)
The altitude of an airplane taking off from an airport is represented by
the equation shown, y = 500x + 1050, where y represents the altitude, in
feet, of the airplane and x represents the number of minutes since take-
off. What is the altitude of the airplane after 5 minutes?
Answer:
3550 ft.
Step-by-step explanation:
y = 500(5) + 1050
= 2500 + 1050
= 3550 ft,
The equation represents the area, A, of a rectangle, in square units.
A = x2 – 3 – 6
Which expression could represent the length of the rectangle, in units?
O (2-3)
O (2-2)
Ox
O 6.2
Look up "Everything You Need To Know About Math In One Big Fat Notebook pdf." It's the best thing I've ever been given, I have it with me in math class all the time and I've aced every test.
How do I differentiate this?
Answer:
[tex]\frac{8}{\left(-x+2\right)^2}[/tex] & [tex]x = 1, x = 3[/tex]
Step-by-step explanation:
I'm sure you are familiar with the product rule,
If y = u*v => dy/dx = u * dv/dx + v * dy/dx <----- product rule
In this case:
[tex]u=3x+2,\:v=\left(2-x\right)^{-1},\\=>\frac{d}{dx}\left(3x+2\right)\left(2-x\right)^{-1}+\frac{d}{dx}\left(\left(2-x\right)^{-1}\right)\left(3x+2\right)[/tex]
Now remember the sum rule:
[tex]\frac{d}{dx}\left(3x+2\right) = \frac{d}{dx}\left(3x\right)+\frac{d}{dx}\left(2\right),\\\frac{d}{dx}\left(3x\right) = 3,\\\frac{d}{dx}\left(2\right) = 0\\\frac{d}{dx}\left(3x+2\right) = 3[/tex]
For this second bit we apply the chain rule:
[tex]\frac{d}{dx}\left(\left(2-x\right)^{-1}\right) = -\frac{1}{\left(2-x\right)^2}\frac{d}{dx}\left(2-x\right),\\\frac{d}{dx}\left(2-x\right) = -1,\\\\=> -\frac{1}{\left(2-x\right)^2}\left(-1\right)\\=> \frac{1}{\left(2-x\right)^2}[/tex]
If we substitute these values back into the expression...[tex]\frac{d}{dx}\left(3x+2\right)\left(2-x\right)^{-1}+\frac{d}{dx}\left(\left(2-x\right)^{-1}\right)\left(3x+2\right)[/tex]
...we get the following:
[tex]3\left(2-x\right)^{-1}+\frac{1}{\left(2-x\right)^2}\left(3x+2\right)[/tex]
The rest is just pure simplification:
[tex]3\left(2-x\right)^{-1}+\frac{1}{\left(2-x\right)^2}\left(3x+2\right)\\= \frac{3}{-x+2}+\frac{3x+2}{\left(-x+2\right)^2}\\= \frac{3\left(-x+2\right)}{\left(-x+2\right)^2}+\frac{3x+2}{\left(-x+2\right)^2}\\\\= \frac{3\left(-x+2\right)+3x+2}{\left(-x+2\right)^2}\\\\= \frac{8}{\left(-x+2\right)^2}[/tex]
Now let's equate this to equal 8 for the second bit and solve for x:
[tex]\frac{8}{\left(-x+2\right)^2}=8,\\\frac{8}{\left(-x+2\right)^2}\left(-x+2\right)^2=8\left(-x+2\right)^2,\\8=8\left(-x+2\right)^2,\\\left(-x+2\right)^2=1,\\x = 1, x = 3[/tex]
Suppose there are 100 trout in a lake and the yearly growth factor for the populations is 1.5. Write the exponential equation for this population.
Which point on the scatter plot is an outlier?
A.) Point A
B.) Point B
C.) Point C
D.) Point D
Answer:
The outlier is A) Point A
Step-by-step explanation:
Hope this helps! <3
HELP IM TIMED!(giving 50 points)
Substitute and to determine if the two expressions are equivalent.
Which statements are true? Select the three correct answers.
3(2t+5). 6t+15
The value of both expressions when t=3 is 33.
The value of both expressions when t=3 is 23.
The value of both expressions when t=6 is 41.
The value of both expressions when t=6 is 51.
The two expressions are equivalent.
The two expressions are not equivalent.
Answer:
A and D and E
Step-by-step explanation:
Substitute the variable(in this case) t for 3, then use the order of operations to simplify(PEMDAS), which will give you 33 for both expressions. To see if two expressions are equivalent, you need to substitute the variable for an odd number AND an even number, so next, substitute the variable t for the number 6, which will give you 51 for both expressions. That means the expressions are equivalent
Hope this helps :)
P.S. Mark brainliest pls
Answer:
A, D, EStep-by-step explanation:
Given expressions:
3(2t + 5) and 6t + 153(2t + 5) = 3(2t) + 3(5) = 6t + 15, the expressions are equivalentThe value of both expressions when t=3 is 33.
6*3 + 15 = 18 + 15 = 33CorrectThe value of both expressions when t=3 is 23.
IncorrectThe value of both expressions when t=6 is 41.
6*6 + 15 = 36 + 15 = 51IncorrectThe value of both expressions when t=6 is 51.
CorrectThe two expressions are equivalent.
CorrectThe two expressions are not equivalent.
IncorrectWhat is the equation of the line that is parallel to y=-2/3x+4 and that passes through (–2,–2)?
Answers
-
-
-
y=-2/3x-4/3
y=-2/3x-10/3
y=-2/3x-2/3
y=-2/3x-17/4
Answer:
C) y= 2/3x -2/3
Step-by-step explanation:
(y-y1)=m(x-x1)
y+2=2/3(x+2)
y+2= 2/3x + 4/3
y= 2/3x -2/3
Keith mowed his aunt's yard 12 times. Each time, he mowed for 1.75 hours and he earned $8.40 per hour. How much money, to the nearest cent, did Keith earn mowing his aunt's yard?
Answer: $176.40
Step-by-step explanation:
Keith mowed the yard 12 times.
Each time he mowed took 1.75 hours.
The number of hours he took in total is therefore:
= 12 * 1.75 hours
= 21 hours
He gets paid $8.40 for every hour he works. For the 21 hours therefore, he would earn:
= 8.40 * 21 hours
= $176.40
Please answer step by step:
-4=2x+16
What does x equal?
x=____?
Answer:
Step-by-step explanation:
-4=2x+16
-16. -16
-20=2x
20/2=2x/2
10=x
In 1 minute, Alex can type 44 words. While working on a project, Alex types from 10:00 AM until 1 AM, He takes a break from 1 0:25 AM to 10:40 AM. At the same rate, how many words did he type?
Answer:
39600 words
Step-by-step explanation:
Given data
In 1 minute, Alex can type 44 words
from 10:00 AM until 1 AM= 15 hours
15 hours to minutes= 15*60= 900 minutes
Hence in In 1 minute, Alex can type 44 words
in 900 minutes he will type x words
cross multiply
x= 900*44
x= 39600 words
Hence he will type 39600 words
2y-2z= -4
- 4y+2z = -2
x+4y-z=-5
Answer:
(-12,3,5)
x=-12,y=3.z=5
Step-by-step explanation:
Find 17.3% of 286.1. Round to the nearest thousandth.
49 would be the answer I hope it helps
Answer:
Result = 49.495
Step-by-step explanation:
17.3% of 286.1=49.4953
rounded~49.495
Hope this helps as well
Lawrence has $50.
He wants to buy some T-shirts that cost $12 each.
He also wants to have at least $10 left to buy lunch.
Which inequality shows the number of T-shirts, x, Lawrence can buy and still have at least $10 for lunch?
A. x≤3
B.x≥3
C. x≤4
D. x≥4
Answer:
choice A) =<3
Step-by-step explanation:
x = number of shirts
50 -10 = x(12)
40 = 12x
x = 3 .33
What is the slope of the line through the points (4, -7) and (9, 2)?
the answer
y/x so its 9/5
the population of a city decreased from 50000 to 45500 . what is the percentage decreased?
45500 = 91%
100 - 91 = 9%
what is 187 divided by 9
PLEASE HELP, MARKING BRAINLIEST!!!
What is the value of x and y?
Thanks
so.......
y=20underroot 3
and X=20
How do the average rates of change for the pair of function compare over the given interval?
f(x)= -0.4x^2
g(x)=-0.8x^2
5≤x≤7
Answer:
The 3rd option is correct
Step-by-step explanation:
A quadrilateral has the following vertices on a coordinate plane:
================================================
Explanation:
We'll only focus on points J and K.
J = (3, -6)
K = (-1, -6)
Because these two points have the same y coordinate (which is -6), this means we can ignore those values and subtract the x coordinates
3 minus (-1) = 3 - (-1) = 3 + 1 = 4
Or we could plot points J and K on the same xy grid system, and count out the number of spaces between J and K. You should count out 4 spaces.
This means segment JK is 4 units long.
Answer:
The answer is -10
Step-by-step explanation:
its a me MAAAAAAAAAAAAAAAAAAAAAAAAAAA
how big is the specific ocean?
how do i ask a question?
whats obamas last know btw? does ANYONE KNOW!!!!?!?!?!?!?
WHERE DO LOST SOCKS GO WHEN THEY GO MISSING??
why do my eyes hurt after looking at a picture of the sun;(
what would happen if i hired two private investigators to follow each other...
Answer:
1. The Pacific Ocean has an area of 63.78 million square miles, an average depth of 3,688 meters, and a volume of 660,000,000km cubed.
2. Use these guidelines when developing questions:
Plan your questions.
Know your purpose.
Open conversation.
Speak your listener's language.
Use neutral wording.
Follow general questions with specific ones.
Focus your questions so they ask one thing at a time.
Ask only essential questions.
3. I don't know XD
4. On an adventure that humans don't know about
5. Depends on the picture of the sun.
6. They would probably be so confused while they tried to follow each other XD
Step-by-step explanation:
mary says that the expression a/2 has no terms because there are no plus or minus signs explain whether her reasoning is correct
Answer:
No, her reasoning is wrong
Step-by-step explanation:
Her reasoning is not correct because for one the expression clearly has a term. a/2 is a term on its own. So she concluding that a/2 isn't a term is quite wrong. Again, her basis for conclusion being that there exists no addition or subtraction signs makes the equation not being a term wrong, as well. Even though there isn't and subtraction nor addition sign, it does not stop it from being any less of a term