Answer:
150°
Step-by-step explanation:
(30x+30)=2(20x-5)
x=4
AB=30×4+30=150
Answer:
150°
Step-by-step explanation:
The angle at the centre subtended by arc AB is twice the inscribed angle, that is
30x + 30 = 2(20x - 5) ← distribute
30x + 30 = 40x - 10 ( subtract 40x from both sides )
- 10x + 30 = - 10 ( subtract 30 from both sides )
- 10x = - 40 ( divide both sides by - 10 )
x = 4
Hence
arc AB = (30 × 4) + 30 = 120 + 30 = 150°
In circle C, what is m?
I assume the 38º measurement refers to the measure of arc BE. Then
[tex]37^\circ=\dfrac{m\widehat{AJ}-38^\circ}2\implies m\widehat{AJ}=112^\circ[/tex]
and so
[tex]32^\circ=\dfrac{112^\circ-m\widehat{FH}}2\implies m\widehat{FH}=\boxed{48^\circ}[/tex]
(I think the theorem I used here is called "angle of intersecting secants")
THIS I S EASY I JUST DON'T KNOW IT PLZZ ANYONE I REALLY NEED THIS ASP I PROMISE BRAIBLIEST ANYONE???????PLZZ HELP I DON'T KNOW WHAT TO DO !!!!!!!15PTS!!! WIL GIVE BRAINLIETS!!!!Which function rule represents the data in the table?
x –3 –2 –1 0 1
y –17 –14 –11 –8 –5
y = –3x – 8
y = 1/3x – 8
y = 3x – 8
y = 1/3x + 8
Answer: The answer is y=3x-8
Step-by-step explanation: All you have to do is plug in the x values and see what you get for y. For example: when you plug in -3 for x. y=3(-3)-8 than you multiply the -3 by 3 and that give you y=-9-8 which equals y=-17 so that shows you the equation works.
plugging in -2 for x
y=3(-2)-8
y=-6-8
y=-14
I hope this helps!!!
Answer:
y = 3x -8
Step-by-step explanation:
You can try a point in the function rules and see if it works. The first (x, y) pair is suitable for finding the right answer:
y = -3(-3) -8 = -1 ≠ -17 . . . . eliminates the first choice
y = 1/3(-3) -8 = -9 ≠ -17 . . . . eliminates the second choice
y = 3(-3) -8 = -17 . . . . . the third choice is viable
y = 1/3(-3) +8 = 7 ≠ -17 . . . . eliminates the last choice
__
Only the third choice is a possible solution. Checking other points from the table verifies this as the correct one.
What is the answer to x-9<15
Answer:
the answer is anything less than 24
Step-by-step explanation:
[tex]x - 9 < 15 = x - 9 + 9 < 15 + 9[/tex]
[tex] \times < 24[/tex]
Please help! I'm am not that great at graphing like this...
Thanks a bunch! :)
Answer:
Step-by-step explanation:
If it's less than or greater than (<, >), then the circle is hollow.
If it's less than or equal to, or greater than or equal to (≤, ≥), then the circle is solid.
Less than points to the left, greater than points to the right.
Here we have less than (not equal to). So the circle is hollow, and the arrow points left. So the correct answer is the first one.
We can check our answer by picking a point and seeing if it's true. If we pick c=-6, is it true that -6 < -1? Yes.
Find the median of the following data set 6,2,59,12,11,9,9,54,54,46,2,32,43,11
By arranging the numbers in ascending order we get,
2, 2, 6, 9, 9, 11, 11, 12, 32, 43, 46, 54, 54, 59
The 2 middle numbers are:
11, 12
To find the median we have to add them and divide them by 2
So, (11+12)÷2
23÷2
11.5
For this case we have by definition that the median of a set of numbers is the average number in the set, after the numbers have been arranged from the lowest to the highest. If there is an even number of data, the median is the average of the two average numbers. So:
We order the numbers from least to greatest:
2,2,6,9,9,11,11,12,32,43,46,54,54,59
We have 14 numbers:
[tex]\frac {11 + 12} {2} = \frac {23} {2} = 11.5[/tex]
Answer:
11.5
help me with this one
Answer:
I think that a pair could be the second choice. MTS and PWQ.
Step-by-step explanation:
Find (f-g)(x) when f(x) = 2x-3 and g(x) = -4x+8
Answer:
6x - 11
Step-by-step explanation:
(f - g)(x) = f(x) - g(x)
f(x) - g(x) = 2x - 3 - (- 4x + 8) = 2x - 3 + 4x - 8 = 6x - 11
Answer:
6x -11
Step-by-step explanation:
f(x) = 2x-3 and g(x) = -4x+8
f-g (x) =2x-3 - (-4x+8)
Distribute the minus sign
= 2x - 3 +4x -8
Combine like terms
= 6x -11
I need help fast.
Number 18 and 19
Answer:
18.=400%
Step-by-step explanation:
80/20 we get 4 then we multiple 4 ×100 we get 400 and we check the answer 400% ×20 =80
How can you calculate the volume of a cylinder? Please help!
Step-by-step explanation:
Volume of a cylinder is the area of the circular cross section times the height:
V = πr²h
Answer:
V=(3.14)r^2×h
Step-by-step explanation:
(3.14)= pie
r^2= radius to the second power
h=height of cylinder
A right cylinder has a radius of 4 and a height of 11 what’s the surface area
Answer:
[tex]A=376.99\ units^2[/tex]
Step-by-step explanation:
By definition, the surface area of a cylinder is given by the following formula:
[tex]A = 2\pi r h + 2\pi r ^ 2[/tex]
Where r is the radius and h is the height.
In this case, we have to:
[tex]r = 4\\\\h = 11[/tex]
then the surface area is:
[tex]A = 2\pi(4)(11) + 2\pi(4) ^ 2[/tex]
[tex]A=120\pi[/tex]
[tex]A=376.99\ units^2[/tex]
120pi units^2
Step-by-step explanation:
HELPPP
The temperature inside a freezer is 2 degrees Celsius. What change can be made to the temperature inside the freezer so that it is 0 degrees Celsius?
A. increase the temperature by 2 degrees Celsius
B. decrease the temperature by 2 degrees Celsius
C. divide the temperature, in degrees Celsius, by 2
D. multiply the temperature, in degrees Celsius, by 2
Answer:
The answer would be B. decrease the temperature by 2 degrees Celsius.
Step-by-step explanation:
Since 2°C - 2°C= 0, then you would obviously have to subtract to find your answer.
PLEASE HELP!!!! The factored form of a quadratic expression is x (x – 4). The ordered pair (0, 0) represents one of the zeros of the associated quadratic function. Which ordered pair represents the other zero?
Answer:
The ordered pair that represent the other zero is [tex](4,0)[/tex]
Step-by-step explanation:
we know that
The zeros or x-intercepts of the quadratic function, represent the value of x when the value of y is equal to zero
In this problem to find the other zero equate (x-4) to zero and solve for x
[tex](x-4)=0[/tex]
[tex]x=4[/tex]
therefore
The ordered pair that represent the other zero is [tex](4,0)[/tex]
I need help please and thank you
Answer:
Step-by-step explanation: if she runs 1 lap in 6 minutes, divide 66 by 6 to find how many laps she runs. this is 11. 11 is the minimum amount of laps that she runs.
n≥11
Answer:
11 ≤ n
Explanation:
[tex] \frac{66}{6} = 11[/tex]
More than indicates the minimum value, so you use the greater than or equal to.
The above answer is written in reverse, which the exact same result.
I am joyous to assist you anytime.
Type the correct answer in each box. Use numerals instead of words. If necessary, use / for the fraction bar(s). A six-sided die of unknown bias is rolled 20 times, and the number 3 comes up 6 times. In the next three rounds (the die is rolled 20 times in each round), the number 3 comes up 6 times, 5 times, and 7 times. The experimental probability of rolling a 3 is %, which is approximately % more than its theoretical probability. (Round off your answers to the nearest integer.)
Answer:
The experimental probability of getting a 3 on a die is 30% which is approximately 13% more than its theoretical probability (17%).
Step-by-step explanation:
Theoretical probability of number 3 on a die:
Total no. of possibilities = 6
Probability of getting a 3 on a die each time it is rolled = 1/6
= 0.16667
= 17%
Experimental probability of number 3 on a die:
Total no. of rounds = 4
Rolls each round = 20
no. of 3s in round 1 = 6
no. of 3s in round 2 = 6
no. of 3s in round 3 = 5
no. of 3s in round 4 = 7
Total rolls = 20*4 = 80
no. of times 3 comes up = 6+6+5+7 = 24
Experimental probability of getting a 3 on a die
each time it is rolled = no. of 3s/total rolls
= 24/80
= 0.3
= 30%
Difference = 30% - 17% = 13%
Experimental probability of getting a 3 on a die is 30% which is approximately 13% more than its theoretical probability (17%).
Answer:
The experimental probability of rolling a 3 is 30 %, which is approximately 13 % more than its theoretical probability.
Step-by-step explanation:
PLATO
If x = -3 is the only x-intercept of the graph of a quadratic equation, which statement best describes the discriminant of the
equation?
The discriminant is negative
The discriminant is -3.
The discriminant is 0.
The discriminant is positive
Answer:
The discriminant is 0
Step-by-step explanation:
Since the graph of the quadratic equation has only one x-intercept, we can conclude that the quadratic has only one real root.
If a quadratic equation has only one real root, then the discriminant is 0
If x = -3 is the only x-intercept of the graph of a quadratic equation then the discriminant is 0
The point-slope form of the equation of a line that passes through points (8, 4) and (0, 2) is y – 4 = (x – 8). What is the slope-intercept form of the equation for this line?
y = x – 12
y = x – 4
y = x + 2
y = x + 6
Answer:
y = x - 4
Step-by-step explanation:
Rewrite y – 4 = (x – 8) in slope-intercept form. To do this, solve the given equation for y:
y - 4 = x - 8 → y = 4 + x - 8, or y = x - 4
As the point-slope form is given, we will simplify it;
[tex]y-4=x-8[/tex]
By adding +4 on both the sides, we get:
⇒[tex]y=x-8+4[/tex]
⇒[tex]y=x-4[/tex]
The slope-intercept form of the equation for this line is y=x-4.
Hence, the correct answer is option (b).
What is slope y-intercept form?The slope intercept formula y = mx + b is used when you know the slope of the line to be examined and the point given is also the y intercept (0, b). In the formula, b represents the y value of the y intercept point.
What is slope-intercept form example?Examples. y = 5x + 3 is an example of the Slope Intercept Form and represents the equation of a line with a slope of 5 and and a y-intercept of 3. y = −2x + 6 represents the equation of a line with a slope of −2 and and a y-intercept of 6.
Learn more about slope-intercept, refer to:
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twice a number subtracted from 35 is 9.what is the number
Ok, so equation for this would be 2x-35=9, 2x because its twice a number, x. 35 because it is taking off of 35. 9 because the grand total is 9.
2x-35=9 First add 35 to 9
2x=44 Then divide 44 by 9
x= approximately 4.9
Estimate the sum by first rounding each mixed number to the nearest whole number and then adding
3 8/9 + 2 5/6
For this case we have:
[tex]3 \frac {8} {9} = \frac {27 + 8} {9} = \frac {35} {9} = 3.8888[/tex]
Round the nearest whole, that is, to 4.
[tex]2 \frac {5} {6} = \frac {12 + 5} {6} = \frac {17} {6} = 2.8333[/tex]
Round the nearest whole, that is, to 3.
So, rewriting we have:
[tex]4 + 3 = 7[/tex]
ANswer:
[tex]3 \frac {8} {9} +2 \frac {5} {6} = 7[/tex]
Stuck, need help please.
Answer:
22.5 lbs
Step-by-step explanation:
First you find the cubic feet. That is the volume of the object which is length*width*height.
In your example, they are using inches. So you have to convert all units to feet. That would be 0.5 inches, 0.5 inches, and 5/3 inches. The volume would be 0.5*0.5*5/3 which is about 5/12 cubic feet
You then take that 5/12 cubic feet and multiply it by the 54 lbs/cubic foot. The answer would be 22.5 lbs
A diver who has a mass of 68 kg climbs to a diving platform that is 7.5 m above the surface of a pool. How much gravitational potential energy does the diver have in relation to the pool’s surface? 510 J 1912 J 3825 J 4998 J
Answer:
option D
4998 J
Step-by-step explanation:
Given in the question that,
mass of the diver = 68 kg
distance of the diver from the surface of a pool = 7.5 m
The gravitational potential energy of an object is given by
GPE = m(g)(h)
here,
m is the mass of the diver
g is the acceleration due to gravity = 9.81m/s²
h is the height from the surface
Plug values in the formula to calculate GPE
GPE = 68(9.8)(7.5)
= 4998 J
Therefore, the gravitational potential energy of the diver with respect to the surface of the pool is 4998 J
Final answer:
The diver has 4986 Joules of gravitational potential energy in relation to the pool's surface, with the closest answer choice being 4998 J, assuming rounding differences. Hence, the answer is D.
Explanation:
To calculate the gravitational potential energy (GPE) of the diver in relation to the pool's surface, we can use the formula GPE = mgh, where m is the mass of the diver, g is the acceleration due to gravity (9.8 m/s2), and h is the height of the diving platform above the pool's surface.
Substituting the diver's mass (68 kg) and the height of the diving platform (7.5 m) into the equation, we get:
GPE = (68 kg) times (9.8 m/s2) times (7.5 m)
GPE = 4986 Joules
Therefore, the diver has 4986 Joules of gravitational potential energy in relation to the pool's surface. Since this value isn't exactly one of the choices, it's likely due to rounding differences, and the closest provided option is 4998 J, which we could assume is the intended answer.
Lyle is camping at a campground. Lyle's cabin is represented by the point (-27,23). The dining hall is located 21 meters east and 20 meters south of Lyle's cabin and is represented by the point (-6,3).
The shortest distance from Lyle's cabin to the dining hall is_____meters.
[tex]\bf ~~~~~~~~~~~~\textit{distance between 2 points} \\\\ \stackrel{\textit{Lyle's cabin}}{(\stackrel{x_1}{-27}~,~\stackrel{y_1}{23})}\qquad \stackrel{\textit{dining hall}}{(\stackrel{x_2}{-6}~,~\stackrel{y_2}{3})}\qquad \qquad d = \sqrt{( x_2- x_1)^2 + ( y_2- y_1)^2} \\\\\\ d=\sqrt{[-6-(-27)]^2+[3-23]^2}\implies d=\sqrt{(-6+27)^2+(3-23)^2} \\\\\\ d=\sqrt{21^2+(-20)^2}\implies d=\sqrt{841}\implies d=29[/tex]
The shortest distance from Lyle's cabin to the dining hall is 29 meters.
To calculate the shortest distance between Lyle's cabin and the dining hall, we can use the distance formula for two points in a coordinate plane. The distance formula is:
d = √[(x2 - x1)² + (y2 - y1)²]
Given:
Lyle's cabin coordinates: (-27, 23)
Dining hall coordinates: (-6, 3)
We use the following steps:
Calculate the difference in the x-coordinates: -6 - (-27) = -6 + 27 = 21
Calculate the difference in the y-coordinates: 3 - 23 = -20
Square these differences: 21² = 441 and (-20)² = 400
Add the squares: 441 + 400 = 841
Take the square root of the sum: √841 = 29
Thus, the shortest distance from Lyle's cabin to the dining hall is 29 meters.
What is the Greatest common factor of 18x^2 and 36x
For this case we have that by definition, the Greatest Common Factor or GFC of two or more numbers, is the largest number that divides them without leaving residue.
So:
We look for the factors of 18 and 36:
18: 1,2,3,6,9,18
36: 1, 2,3,4, 6,9,18 ...
Thus, the GFC of both numbers is 18.
Then, the GFC of[tex]18x ^ 2[/tex] and [tex]36x[/tex] is:
[tex]18x[/tex]
Answer:
[tex]18x[/tex]
Final answer:
The Greatest Common Factor of 18x² and 36x is 18x, which is the product of shared prime factors to the lowest powers and includes the variable x.
Explanation:
Finding the Greatest Common Factor (GCF)
To find the Greatest Common Factor of 18x² and 36x, we need to break down each term into its prime factors and include the variable parts:
18x² can be factored into 2 × 3 × 3 × x × x (or 2 × 3² × x²)36x can be factored into 2 × 2 × 3 × 3 × x (or 2² × 3² × x)The GCF is the product of the lowest powers of common factors in both terms. Hence, the GCF of 18x² and 36x is 18x, which consists of 2 × 3 × 3 × x (or 2 × 3² × x).
Let f(x)=x2+14x+36 .
What is the vertex form of f(x)?
What is the minimum value of f(x)?
Enter your answers in the boxes.
Answer:
see explanation
Step-by-step explanation:
The vertex form of f(x) is
f(x) = (x - h)² + k
where (h, k) are the coordinates of the vertex
To obtain this form use the method of completing the square
add/subtract ( half the coefficient of the x- term )² to x² + 14x
f(x) = x² + 2(7)x + 49 - 49 + 36
= (x + 7)² - 13
The minimum value of f(x) is the y- coordinate of the vertex
vertex = (- 7, - 13), that is minimum value = - 13
The vertex form of the function f(x)=x²+14x+36 is (x + 7)² - 13, with the vertex at (-7, -13). The minimum value of f(x) is -13.
Explanation:To convert the function f(x) = x²+ 14x + 36 into vertex form, we need to complete the square. First, factor out the coefficient of the x² term if it is not 1 (in this case it is 1, so no factoring is necessary), and then group the x terms.
f(x) = (x²+ 14x) + 36
Add and subtract the square of half of the coefficient in front of x within the parenthesis to complete the square:
f(x) = (x² + 14x + 49) - 49 + 36
Simplify:
f(x) = (x + 7)² - 13
Now the function is in vertex form, which is y = a(x - h)² + k, where (h, k) is the vertex. Here, the vertex is at (-7, -13).
The minimum value of the function f(x) occurs at the vertex since the coefficient of the x² term is positive, indicating a parabolic shape opening upwards. Therefore, the minimum value of f(x) is -13.
Learn more about Vertex Form here:
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can two numbers have the same prime factorization
The prime factorization of a number is the set of prime numbers that can be multiplied together to give you that number. Therefore, two different numbers cannot have the same prime factorization, because if you multiply the same set of numbers together, you must get the same answer. For example, 2 × 3 × 5 will always give you 30.
Therefore, the answer will be no.
Help plzzzzzzzzzzzzzz
Answer:
y=8x-3
Step-by-step explanation:
Plz help with financial algebra !!
Answer: She will be there 8 years.
Step-by-step explanation:
What is 2x -4 ≤ 4x answer
Answer:
x ≥ -2
Step-by-step explanation:
2x - 4 ≤ 4x
Subtract 2x from both sides:
-4 ≤ 2x
Divide by 2:
-2 ≤ x
So -2 ≤ x, or x ≥ -2.
You can check your answer by picking a number greater than -2 and see if it works. For example, if x = 0:
0 - 4 ≤ 0
-4 ≤ 0
a rectangle is graphed on the coordinate grid. which represents the equation of a that is perpendicular to side r?
Answer:
Fourth answer choice: y = x + 3
Step-by-step explanation:
Note that sides a and s are perpendicular to side r. Both sides a and s have positive slopes, so we can immediately eliminate answer choices 1 and 2.
If we extend side s up and to the left, it intersects the y-axis at (0, 3). Thus, the y-intercept is +3 and the desired equation is:
y = x + 3
Answer:
The answer is D
Step-by-step explanation:
A line has a slope of 9 and includes the points (t, 7) and (-10, -2). What is the value of t?
T=__
[tex]\bf (\stackrel{x_1}{t}~,~\stackrel{y_1}{7})\qquad (\stackrel{x_2}{-10}~,~\stackrel{y_2}{-2}) \\\\\\ slope = m\implies \cfrac{\stackrel{rise}{ y_2- y_1}}{\stackrel{run}{ x_2- x_1}}\implies \cfrac{-2-7}{-10-t}=\stackrel{\stackrel{slope}{\downarrow }}{9}\implies \cfrac{-9}{-10-t}=9 \\\\\\ -9=-90-9t\implies 81=-9t\implies \cfrac{81}{-9}=t\implies -9=t[/tex]
T=-9 and the work is there
If you have any questions about what I did
Hope this helps.if it does please mark brainliest
Use the graph below to answer the question what is the slope of the weather is perpendicular to the line in the graph
Answer:
1
Step-by-step explanation:
Slopes of perpendicular lines are opposite reciprocal of one another i.e.
slope m1, of given line l1 = -1/slope m2, of its perpendicular line l2
slope m2, of its perpendicular line l2 = -1/slope m1, of given line l1
m2= -1/m1
Finding m1 from the given graph
m1= y2-y1/x2-x1
= -2-1/2+1
= -3/3
= -1
m2= -1/-1
= 1 !