The measure of an obtuse angle is greater than 90° but less than 180°
What is an obtuse angle?An obtuse angle is a type of angle that is always larger than 90° but less than 180°. In other words, it lies between 90° and 180°.
An angle is the space between two intersecting lines or surfaces at or close to the point where they meet.
Angles are mostly measured in degrees. But it can also be measured in radian. Examples of obtuse angle are 91°, 100°, 150° e.t.c
Other examples of angles are acute angle, reflex angle , right angle.
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Can somebody please help?? i’ll give Brainliest to whoever answers first.
There are 625 students in Leon's school. He takes a random sample of 75 students from the entire school population. In the sample, 33
students are planning to attend the end of year picnic.
Based on his data, how many students from the entire school are planning to attend the end of year picnic? Show ALL your work!
Answer:
The answer is 275 students.
Step-by-step explanation:
In 75 students, 33 students attend.
So the ratio is 33/75.
so multiply with 625.
625 x 33/75 = 275
Use a unit rate to find the unknown value.
Answer:
it's 6
Step-by-step explanation:
You can think of it 2 ways the first one is called the "bat and ball" method which is 12x15 then u divide it by 30. The other methos only works on very few if you look at the 30/15 one 15 is half of 30 so when you look at 12 half of that would be 6. Hope this helps :)
The 11 students in the Environmental Club represent 5% of the students in the seventh grade. How many students are in the seventh grade?
Answer: 220
Step-by-step explanation:
Create ratios using fractions, one for the students, and one for the percent
students: \(\frac{11}{x}\) percents: \(\frac{5}{100}\)
Then cross multiply 1. \(11 *100 = 1100\), 2. \(1100 / 5 = 220\)
So \(x = 220\), this means there are a total of 220 students in 7th grade
determine whether each relationship is proportional by graphing on the cordinate plan. Explain your reasoning.
Answer:
It would be proportional.
Step-by-step explanation:
Every 2 numbers on the X value, The y vaulue goes up by 20. It is the same number that it is inreasing by each time.
Your return on investment A is 4.5% and your return on investment B is 3%. If the total of your investment is $75,000, how much should you invest in each fund to obtain a return of 4%?
One has to invest $50000 in A and $25000 in B
Let x represent the investment in A and y represent the investment in B.
Total investment is $75,000 ( given )
hence x + y=$75,000 (from the above information)
x + y= 75,000 (equation 1)
Interest rate in A is 4.5 % and Interest rate in B is 3 %
now, 4% of $75000 = $3000
4.5x/100 + 3y/100 = $3000
= 4.5x+3y=300000 ( equation 2 )
Multiplying 3 to equation 1
which equals to 3x + 3y= 225000 ( equation 3 )
Solving equations: equation 2 & equation 3
4.5x+3y=300000 ( equation 2 )
3x + 3y= 225000 ( equation 3 )
(-) (-) = (-)
1.5x = 75000
x= 50000
substituting x= 50000 in equation 1 (x + y= 75,000)
50000 + y= 75,000
⇒y =75000-50000
⇒y=25000
Hence, Check can be done by multiplying the interest rates with the respective answer and summing them to get $3000
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e At its highest
is 5,762 feet
At its lowest point, the elevati
15. Make Sense and Persevere At its bio
point, the elevation of a county is 5,762
above sea level. At its lowest point. th
of the county is 9 feet below sea level.
ow sea level.
a. What is the difference between the highest and lowest points of the country?
The difference between the highest and the lowest points of the country is 5771 feet.
What is subtraction?The operation of subtraction is used to calculate the difference between two numbers. If you have an object group and remove a couple of them, the object group gets smaller.
The process of subtracting one number from another is called subtraction. The way to calculate the difference between two numbers is by using the basic arithmetic operation of subtraction, which is represented by the symbol (-).
Let the sea level be x.
The highest point of the country is 5,762 feet above the sea. So, we can write it as
x+5,762
Since the lowest point is 9 feet below sea level, we can write this expression:
x-9
The difference is the result of subtraction. Therefore, we can find the expression that represents the difference between the elevations by subtracting x+5,762 and x-9:
(x+5,762)-(x-9)
= x+5762-x+9
= 5762+9
=5771 feet
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Which of the following pairs are corresponding angles?
O
6 and 8
2 and 7
5 and 4
5 and 2
Answer:
Hey! your answer should be A. 6 and 8
Step-by-step explanation:
I've attatched an image of what corresponding angles look like. Your best choice would be A
At the neighborhood block party, Joel served 1/6 of a gallon of hot chocolate and 1/12 of a
gallon of apple cider. How much more hot chocolate than apple cider did Joel serve?
Write your answer as a fraction or as a whole or mixed number.
gallons
Answer:
1/12 gallons
Step-by-step explanation:
We can determine how much more hot chocolate than apple cider die Joe serve by subtracting 1/12 from 1/6.
Step 1: Since 1/12 has the bigger denominator and 6 * 2 = 12, let's give 1/6 the same denominator as 1/12 by multiplying the entire fraction by 2/2
(1/6) * (2/2) = 2/12
Step 2: Now we can subtract 1/12 from 2/12:
2/12 - 1/12 = 1/12
Thus, Joel served 1/12 more gallons of hot chocolate than apple cider.
Find value of b and A
Answer:
Hi
Step-by-step explanation:
Please paste your question so I can solve it
Thanks
Is (7,-6) a solution to this system of equations?
y = 1/7x+ 7
X = 7
yes
no
What steps would you do to solve 3x – 5 ≥ -12?
a. Add -12, then divide by 3.
b. Divide by 3, then add 5.
c. Multiply by 3, then subtract 5.
d. Add 5, then divide by 3.
Answer:
D.)
Step-by-step explanation:
In order to solve you would need to first get the number with the variable by itself. So first we'd need to add 5 to the other side and we would add it bc when we move a number over the equals sign (which is what were considering the greater than sign to solve)
Kristen spent $25 to buy 9 flowers for her mother on May 10.She bought roses which cost $3 and daisies which cost $2.how many roses and how many daisies did she buy. step by step
Kristen spent $25 to buy 9 flowers (F) for her mother on May 10. She bought roses (R) which cost $3 and daisies (D) which cost $2. How many roses and how many daisies did she buy.
____________________________________
Total number of roses bougth
F= 9
F = R + D (I)
_______________
total cost (C)
C= 25
C= R *3 + D*2 (II)
_________________
Solving the two equations system by substitution
F = R + D
9= R + D
D= 9 - R
Replacing in (II)
25 = R *3 + (9 - R)*2 (II)
25 = 3*R + 18 - 2R
R = 25- 18
R=7
D= 2
__________________
Answer
Kristen bought 7 roses and 2 daisies
What is the solution to x 3 + x 2 ≤ 10x – 8?
Answer:
Solution: x ⩾ \frac{8}{5}
Step-by-step explanation:
x 3 + x 2 ≤ 10x – 8
Reorder the terms
3x + 2x ≤ 10x - 8
Collect like terms
5x ≤ 10x - 8
Move the variable to the left
5x -10x ≤ -8
Collect like terms
-5x ≤ - 8
Divide both sides
x ⩾ \frac{8}{5}
Answer:
D
Step-by-step explanation:
Find domain Range Y-intercept X- intercept Vertical asymptote Horizontal asymptote Pic attached below note write domain and range in interval notation
Find domain
Range
Y-intercept
Xi intercept
Vertical asymptote
Horizontal asymptote
Pic attached below
The domain and range of the function f(x) = 3/x + 2 are (-∞, 0) ∪ (0, ∞) and (-∞, 2) ∪ (2, ∞). The vertical and horizontal asymptotes are x = 0 and y = 2 respectively
What is the domain and range of a functionIn mathematics, the domain of a function is the set of all possible input values (also known as the independent variable) for which the function is defined. The range of a function is the set of all possible output values (also known as the dependent variable) that the function can produce.
To determine the domain and range of a function, it's important to consider the nature of the function, its graph or formula, and any restrictions that may apply.
The function f(x) = 3/x + 2
The domain of the function is (-∞, 0) ∪ (0, ∞)
The range of the function is (-∞, 2) ∪ (2, ∞)
The x - intercept is (-3/2, 0)
The y - intercept does not exist
The vertical asymptotes is x = 0
The horizontal asymptotes is y = 2
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How many milliliters is 719.01 liters?
Answer:
719010
Step-by-step explanation:
Find the range and mean of 1,5,7,8,9
Answer: Range is 8 and median is 7
Step-by-step explanation:
To find the range is to take the number with the highest value and subtract that from the number with lowest value. So you would take 9 and 1 (9-1) and would get 8
To find the median, you need to rearrange the numbers from lowest to highest, and find the middle of it. Since the order of numbers is perfectly arranged, the median is 7
Find the volume of the rectangular prism.
Answer:
Q9:
\(\boxed{V = \dfrac{7}{96}\;cubic\;feet}}\)
Q10
\(\boxed{V = \dfrac{64}{125}\;cubic\;yards}\)
Step-by-step explanation:
For a rectangular prism, the volume = length x width x height
Given these 3 dimensions simply multiply them to get the volume
Q9
\(V = \dfrac{7}{8} \cdot \dfrac{2}{3} \cdot \dfrac{1}{8}\\\\\)
\(V = \dfrac{7\cdot 2\cdot 1}{8\cdot 3 \cdot 8}\\\\V = \dfrac{14}{192}\\\\\)
Divide numerator and denominator to reduce to lowest fraction
\(V = \dfrac{14 \div 2}{192\div 2}\\\\\boxed{V = \dfrac{7}{96}\;cubic\;feet}}\)
Q10
This is a cube since each side is the same length
For a cube of side a, the volume = a³
So for this particular cube
\(V = \left(\dfrac{4}{5}\right)^3\\\\\\\boxed{V = \dfrac{64}{125}\;cubic\;yards}\)
A bacteria culture grows with constant relative growth rate. The bacteria count was 1,920 after 4 hours and 1,966,080 after 12 hours.
(a) What is the relative growth rate? Express your answer as a percentage. (Round your answer to two decimal places.)
(b) What was the initial size of the culture?
(c)Find an expression for the exact number of bacteria after t hours, y(t).
(d) Find the number of bacteria after 9.5 hours. (Round your answer to the nearest whole number.)
(e) Find the rate of growth (in bacteria per hour) after 9.5 hours. (Round your answer to the nearest whole number.)
(f) How many hours did it take for the population to reach 72,000? (Round your answer to two decimal places.)
From the calculation, the growth rate is 0.88.
What is the growth rate?To find the relative growth rate
P1 = Poe^rt
P2 = Poe^rt
Thus;
1920 = Poe^4r ------ (1)
1966080 =Poe^12r -------(2)
P2/P1 gives;
1966080/1920 = Poe^12r/Poe^4r
1024 = e^12r/e^4r
1024 =e^8r
1024 = (e^r)^8
2^10 = (e^r)^8
e^r = 2^1.25
e^r = 2.38
r = ln(2.38)
r = 0.88
The initial size of the culture is;
1920 = Poe^(0.88 * 4)
Po = 1920/e^(0.88 * 4)
Po = 57
The expression for the exact number of bacteria after t hours is
P(t) = 57e^0.08t
The growth (in bacteria per hour) after 9.5 hours is
P(t) = 57e^(0.88 * 9.5)
P(t) = 243544
For the number to reach 72,000;
72,000 = 57e^0.88t
72,000/57 = e^0.88t
ln 126 = ln[e^0.88t]
4.8 = 0.88t
t = 4.8/0.88
t = 5.5 hours
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could anyone help me solve this?
Step-by-step explanation:
The body reverses direction whenever we go from Positve velocity to negative velocity or vice versa.
So here it is (2,7) exclusive then (7,10) exclusive.
A constant speed means a slope of 0. Here it is (3,6).
c. Since speed is non negative, we would reflect any part of the velocity function that is below the time.axis about the time axis
So we would get
Above is the function, don't worry bout the math part.
D. Knowing that acceleration is the derivative of velocity with respect to time, the derivative of any linear function is the slope of that linear function. So if we find the slope of different paths, we will get a constant and then we can graph it
We must use the original graph because acceleration is a vector meaning it can be negative.
We would get
the second graph is acceleration vs time
what is the slope and y- intercept
BD bisects /ABC, Find m/ABC
Solve for x :-
\(\mathrm{5x+4x-68=34-8x}\)
\( \color{lime} \fbox{ \colorbox{black}{ \boxed{\begin{array}l{} \\ \quad \qquad\bf \large \color{lime}{ \underline{Solution} : }\: \: \\ \\ \: \tt \mapsto5x + 4x - 68 = 34 - 8x\\ \\ \: \tt \mapsto9x - 68 = 34 - 8x \\ \\ \: \tt \mapsto9x + 8x = 34 + 68\\ \\ \: \tt \mapsto17x = 102\\ \\ \: \tt \mapsto x = 102 \div 17\\ \\ \: \tt \mapsto x = 6\: \: \end{array} }}}\)
PLEASE HELP 100 points to who ever gives me the answer Compare the numbers using >, <, or =.
a) -2 3
b) |-12| |15|
c) 3 -4
d) |15| |-12|
e) 7 -11
Answer:
a) -2 < 3
b) |-12| < |15| (the absolute value of -12 is 12 so that's comparing 12 to 15)
c) 3 > -4
d) |15| > |-12|
e) 7 > -11
The system shown is
O
inconsistent
•
equivalent
consistent
Answer:
This is pogers
Step-by-step explanation:
What is ur minecraft usernaem
Answer:
consistent
A consistent and independent solution to a system of linear equations is one point
A consistent and dependent solution to a system of linear equations is where they are the same line ( they could also be called equivalent)
An inconsistent solution is where there is no solution, the lines do not cross
Since the lines cross at exactly one point, this is a consistent and dependent solution
The solution is at x = 3 ( 3 units to the right of the origin)
and y = 2 ( 2 units up from the origin)
Step-by-step explanation:
i dont smoke cause nobody want the smoke
Answer:
Points Yay Woop Woop
Step-by-step explanation:
Pointsssssss
What is the line’s slope?
0
Because the line isn't increasing or decreasing, it's just flat, so it's 0.
Answer:
Step-by-step explanation:
It doesn't matter what value x has. y is always 2. That means that the slope has disappeared.
The slope must be zero.
If x:y = 2:5, find the value of (-x+3y):(2x+y)
Answer:
let x=2t and y=5t
-x+3y = -2t+15t = 13t
2x+y = 4t+5t = 9t
So the ratio is 13t : 9t
So, the ratio is 13 : 9
Rotation 90° clockwise about the origin
N
O
G
An image of triangle NOG after a rotation 90° clockwise about the origin is shown below.
What is a rotation?In Mathematics and Geometry, a rotation is a type of transformation which moves every point of the object through a number of degrees around a given point, which can either be clockwise or counterclockwise (anticlockwise) direction.
Next, we would apply a rotation of 90° clockwise about the origin to the coordinate of this triangle NOG in order to determine the coordinate of its image;
(x, y) → (y, -x)
Point N = (-4, -1) → Point N' (-1, 4)
Point O = (-4, -3) → Point O' (-3, 4)
Point G = (0, -1) → Point G' (-1, 0)
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students are asked to memorize a list of 100 words. the students are given periodic quizzes to see how many words they have memorized. the function l gives the number of words memorized at time t . the rate of change of the number of words memorized is proportional to the number of words left to be memorized. which of the following differential equations could be used to model this situation, where k is a positive constant?
The differential equation representing the model of the number of words memorized by the students is equal to option C. dL/dt = k(100 - L).
Let us consider function 'L' represents the number of words memorized at time 't'
Total number of words students asked to memorized = 100 words
Rate of change of number of words with time 't' is equal to ( dL/dt )
Number of words left to memorized by the students = 100 - L
Differential equation representing the situation is
= Rate of change of number of words memorized ∝ number of words left to memorized
= dL/dt ∝ ( 100 - L )
⇒ dL/dt = k( 100 - L )
Where 'k' is the constant of proportionality .
k is a positive number.
Therefore, the differential equation representing the situation of memorizing word is given by option c. dL/dt = k( 100 - L ).
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The above question is incomplete, the complete question is:
Students are asked to memorize a list of 100 words. The students are given periodic quizzes to see how many words they have memorized. The function L gives the number of words memorized at time t. The rate of change of the number of words memorized is proportional to the number of words left to be memorized.
1. Which of the following differential equations could be used to model this situation, where k is a positive constant?
A. dL/dt = kL
B. dL/dt = 100 - kL
C. dL/dt = k(100 - L)
D. dL/dt = kL - 100
PLS HELP!! Find the equation of a line perpendicular to -2x+y= 9 that passes through the point (6, 2).
Step-by-step explanation:
To find the equation of a line perpendicular to -2x+y= 9, we first need to determine the slope of the given line. We can rewrite -2x+y= 9 in slope-intercept form (y=mx+b) by isolating y:
-2x+y=9
y=2x+9
So the slope of the given line is 2. The slope of any line perpendicular to this line will be the negative reciprocal of this slope, which is -1/2.
Next, we can use the point-slope form of the equation of a line to find the equation of the line that passes through the point (6, 2) with a slope of -1/2:
y - y1 = m(x - x1)
where m is the slope and (x1, y1) is the given point. Plugging in the values, we get:
y - 2 = (-1/2)(x - 6)
Simplifying this equation, we get:
y - 2 = (-1/2)x + 3
y = (-1/2)x + 5
So the equation of the line perpendicular to -2x+y= 9 that passes through the point (6, 2) is y = (-1/2)x + 5.