C. It is not always possible to calculate theoretical probability in complex situations, but experimental probability can be calculated any time experiments can be run.
The advantage of experimental probability over theoretical probability is that option C. It is not always possible to calculate theoretical probability in complex situations, but experimental probability can be calculated any time experiments can be run.
What is Probability?Probability is simply the possibility of getting an event. Or in other words, we are predicting the chance of getting an event.
The value of probability will be always in the range from 0 to 1.
Experimental probability is the probability where the probability of something is found by real experiments.
This is not computed by assuming or calculation.
Theoretical probability is the probability where the probability of something is found theoretically.
The probability is found using formulas and calculation.
So, it is not always possible to calculate theoretical probability in complex situations.
But experimental probability can be found in any case using experiments.
Hence the correct option is C.
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Work out the total charge for these tickets when paying by credit card.
Billy wants tickets huh okay.....
Alright so first off what information do we have?
We know that 4 adult tickets are 15 Euros each
2 child tickets are 10 Euros each
Ok simple calculations here
4*15 = 60
2*10 = 20
Total is 80 Euros charge
10% booking fee
so 10% of 80 is 8 (Add this onto the total bill) = 88
3% of 88 is (well 1% is 0.88 3% is 0.88 * 3 = 2.64)
Total bill now is 90.64 (Might aswell add taxes now poor billy spending a 100)
By the way your answer is 90.64
M is the midpoint of YZ. If YM = x + 3, and YZ = 3x -1, find MZ
PLEASE HELP WILL GIVE BRAINLIEST TO CORRECT ANSWER
Which of the following is the equation for the line graphed below?
A. 5x + 4y = 12
B. 5x - 4y = 12
C. 5x + 4y = -12
D. 5x - 4y = -12
Answer:
B. 5x - 4y = 12
Step-by-step explanation:
Let's convert this to slope-intercept form to interpret the equation easier.
5x - 4y = 12
Subtract 5x from both sides.
-4y = -5x + 12
Divide both sides by -4.
y = 5/4x - 3
Based on this, we know the slope is 5/4 and the y-intercept is (0, -3). When you count the rise over run in the picture and look at the y-intercept, they match.
When it comes to equity, what does it mean to have negative equity or be under water?
Answer:
The amount owed is greater than the cars worth (apex)
Step-by-step explanation:
if you set x+5 = 0
the term inside the cube
then solve for x
The American Veterinary Medical Association believes that half of veterinary clinics do not treat large animals (cows, horses, etc.). The American Veterinary Medical Association conducted a survey of veterinary clinics to estimate the proportion that do not treat large animals (cows, horses, etc.). In the survey of 120 randomly selected veterinary clinics throughout the country, 88 responded they do not treat large animals. The test statistic for the above hypothesis test about the proportion of clinics that do not treat large animals is... (Round your answer to two decimal places)
Final answer:
The test statistic for the hypothesis test regarding the proportion of veterinary clinics that do not treat large animals is approximately 5.11, calculated using the formula for the test statistic of a proportion.
Explanation:
The student is asking about calculating a test statistic for a hypothesis test concerning the proportion of veterinary clinics that do not treat large animals such as cows and horses. The proportion as per the American Veterinary Medical Association's belief is 0.5, and the survey conducted has resulted in 88 out of 120 clinics stating they do not treat large animals. To find the test statistic, we can use the formula for the test statistic of a proportion:
Test Statistic (Z) = (p - P₀) / √(P₀(1 - P₀)/n), where p is the sample proportion, P₀ is the null hypothesis proportion, and n is the sample size.
In this case:
p = 88/120
P₀ = 0.5 (as per the hypothesis)
n = 120
Substituting these values, we get:
Z = (88/120 - 0.5) / √(0.5 * (1 - 0.5) / 120) = (0.7333 - 0.5) / √(0.25 / 120) = 0.2333 / √(0.0020833) = 0.2333 / 0.04564 ≈ 5.11
Therefore, the test statistic is approximately 5.11, when rounded to two decimal places.
Which method is used to reduce a fraction to its lowest form? FOIL method Inverse operations method Cancellation method Addition-subtraction method
Answer: Cancellation method
Step-by-step explanation:
You divide the denominator by the denominator number to cancel the fraction out.
The Cancellation method is used to simplify a fraction to its lowest form. It is done by finding the Greatest Common Divisor (GCD) of the numerator and the denominator and dividing both by this number.
Explanation:The method used to reduce a fraction to its lowest form is the Cancellation method. This method involves finding the greatest common divisor (GCD) of the numerator and the denominator of the fraction. Once the GCD is found, divide both the numerator and the denominator by this number. This will reduce the fraction to its simplest or lowest form. For example, if we have the fraction 6/8, the GCD of 6 and 8 is 2. Dividing both 6 and 8 by 2, we retrieve the reduced fraction which is 3/4.
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Which pair of angles are Consecutive Interior Angles?
<6 and <5
<6 and <4
<1 and <5
<1 and <3
Answer:
<1 and <3
Step-by-step explanation:
The pairs of angles on one side of the line but in between the other two lines are called consecutive interior angles.
<1 and <3
<2 and <6
Solve the linear equation.
7x+10=13(12x−3)+14x
Enter your answer in the box.
x =
[tex]7x+10=13(12x-3)+14x\qquad\text{use distributive property}\\\\7x+10=(13)(12x)+(13)(-3)+14x\\\\7x+10=156x-39+14x\\\\7x+10=170x-39\qquad\text{subtract 10 from both sides}\\\\7x=170x-49\qquad\text{subtract 170x from both sides}\\\\-163x=-49\qquad\text{divide both sides by (-163)}\\\\\boxed{x=\dfrac{49}{163}}[/tex]
Which matrix represents the rotation of the vector 1,4 by 2pi/3 radians
Answer:
Option B is correct.
Rotation matrix = [tex]\begin{bmatrix} -3.96 \\ -1.13 \end{bmatrix}[/tex]
Step-by-step explanation:
Given a vector : [tex]<1 , 4>[/tex] , rotation by [tex]\frac{2\pi}{3}[/tex] radian.
A rotation matrix is a matrix that is used to perform a rotation in Euclidean space.
The standard rotation matrix is given by;
R = [tex]\begin{bmatrix}\cos \theta & -\sin \theta \\ \sin \theta & \cos \theta \end{bmatrix}[/tex]
Then, the matrix of rotation by [tex]\frac{2\pi}{3}[/tex] radian is:
[tex]\begin{bmatrix}x' \\ y'\end{bmatrix}[/tex] = [tex]\begin{bmatrix}\cos \theta & -\sin \theta \\ \sin \theta & \cos \theta \end{bmatrix}[/tex] [tex]\begin{bmatrix}x \\ y\end{bmatrix}[/tex]
Then; substitute [tex]\theta = 120^{\circ}[/tex]
[tex]\begin{bmatrix}x' \\ y'\end{bmatrix}= \begin{bmatrix}\cos 120^{\circ} & -\sin 120^{\circ} \\ \sin 120^{\circ} & \cos 120^{\circ}\end{bmatrix}\begin{bmatrix}1 \\ 4 \end{bmatrix}[/tex]
or
[tex]\begin{bmatrix}x' \\ y'\end{bmatrix}= \begin{bmatrix} -0.5 & -0.866 \\ 0.866 & -0.5 \end{bmatrix}\begin{bmatrix}1 \\ 4 \end{bmatrix}[/tex]
or
[tex]\begin{bmatrix}x' \\ y'\end{bmatrix}= \begin{bmatrix} -0.5 +4(-0.866) \\ 0.866+4(-0.5)\end{bmatrix}[/tex]
Simplify:
[tex]\begin{bmatrix}x' \\ y'\end{bmatrix} = \begin{bmatrix} -3.96 \\ -1.13 \end{bmatrix}[/tex]
Therefore, the rotation matrix of a given vector is, [tex]\begin{bmatrix} -3.96 \\ -1.13 \end{bmatrix}[/tex]
The matrix that represents the rotation of the vector 1,4 by 2pi/3 radians is : (B) [tex]\left[\begin{array}{ccc}-3.96\\-1.13\\\end{array}\right][/tex]
Meaning of MatrixA matrix can be defined as a rectangular array of numbers table of numbers, symbols, or expressions that are arranged into column and rows.A matrix can take different forms which gave rise to the types of matrices.
Given that standard rotation matrix is expressed as :
[tex]R = \left[\begin{array}{ccc}cos\beta &-sin\beta \\sin\beta &cos\beta \\\end{array}\right][/tex]
therefore the matrix by rotation of [tex]\frac{2\pi }{3}[/tex]
[tex]\left[\begin{array}{ccc}x'\\y'\\\end{array}\right] = \left[\begin{array}{ccc}cos\beta &-sin\beta \\sin\beta &cos\beta \\\end{array}\right] \left[\begin{array}{ccc}x\\y\\\end{array}\right][/tex]
substituting the value of [tex]\beta = 120^o[/tex]
[tex]\left[\begin{array}{ccc}x'\\y'\\\end{array}\right] = \left[\begin{array}{ccc}-0.5 &+4(-0.866) \\0.866 &+4(-0.5) \\\end{array}\right] \left[\begin{array}{ccc}\\\\\end{array}[/tex]
Therefore the rotation of the vector is
[tex]\left[\begin{array}{ccc}-3.96\\-1.13\\\end{array}\right][/tex]
In conclusion, The matrix that represents the rotation of the vector 1,4 by 2pi/3 radians is : (B).
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Brad went skiing at Snowfall Lodge on Cone Mountain (a mountain shaped like a perfect right cone) for his spring break vacation. During his stay, he decided to go down the park's black diamond speed trail which is a straight path down the side of the mountain. The trail starts at the very top of the mountain and is 3,150 feet long. If the radius of Cone Mountain is 1,890 feet, how tall is Cone Mountain? A. 1,260 feet B. 2,835 feet C. 2,520 feet D. 3,675 feet
The height of Cone Mountain, given the trail length and the radius, would be C. 2,520 feet
How to find the height ?
To find the height of Cone Mountain, we can use the properties of a right circular cone. The key relationship we'll use is the Pythagorean theorem :
[tex]l^2 = r^2 + h^2[/tex]
The slant height (l) is the length of the trail, which is 3,150 feet.
The radius (r) is 1,890 feet.
Pythagorean theorem:
[tex](3,150)^2 = (1,890)^2 + h^29,922,500 = 3,572,100 + h^2[/tex]
Make h the subject:
[tex]h^2 = 9,922,500 - 3,572,100\\h^2 = 6,350,400[/tex]
Take the square root of both sides to find h:
h = √(6,350,400)
h = 2,520 feet
Sara is mixing together a fruit punch for a party. She's made 6 gallons of punch with a mixture of 50% juice. Her mother tells her to change it to a mixture of 70% juice. How much fruit juice should be added to make the mixture 70% fruit juice (round to the nearest hundredth)?
Final answer:
To adjust the fruit punch from 50% to 70% juice, Sara needs to add 4 gallons of fruit juice to the existing 6 gallons of punch.
Explanation:
The student is attempting to adjust the concentration of juice in a fruit punch mixture from 50% to 70%. Initially, Sara has 6 gallons of punch which is 50% juice. To find out how much fruit juice should be added to reach a 70% juice mixture, we can use the equation of concentration:
Let the amount of juice to be added be x gallons. The total amount of juice in the mixture would then be 50% of 6 gallons plus x gallons, and the total volume of the mixture would be 6 gallons plus x gallons.
The equation representing the new concentration is:
(3 + x) / (6 + x) = 70/100
To solve for x, multiply both sides by (6 + x) and then by 100 to clear the percentage and denominator:
3 + x = 0.7 * (6 + x)
3 + x = 4.2 + 0.7x
Now, subtract 0.7x from both sides:
3 + 0.3x = 4.2
And then subtract 3 from both sides:
0.3x = 1.2
Divide both sides by 0.3 to solve for x:
x = 4 gallons
Therefore, Sara needs to add 4 gallons of fruit juice to the existing punch to create a mixture that is 70% juice, rounding to the nearest hundredth.
The surface area of a right circular cylinder of height 2 feet and radius r feet is given by S(r)=2πrh+2πr2. Find the instantaneous rate of change of the surface area with respect to the radius, r, when r = 3.
24π
64π
20π
16π
S(r) = 2pi*r*h + 2pi*r^2
S ' (r) = 2pi*h + 2*2*pi*r .... differentiate with respect to r
S ' (r) = 2pi*h + 4pi*r
S ' (3) = 2pi*h + 4pi*3 ... plug in r = 3
S ' (3) = 2pi*h + 12pi
S ' (3) = 2pi*2 + 12pi .... plug in h = 2
S ' (3) = 4pi + 12pi
S ' (3) = 16pi
---------------
Answer: D) 16pi
The instantaneous rate of change of the surface area with respect to the radius, r, when r = 3, is 16π
What is cylinder?A cylinder is a three-dimensional shape consisting of two parallel circular bases, joined by a curved surface. The center of the circular bases overlaps each other to form a right cylinder.
Given that, the surface area of a right circular cylinder of height 2 feet and radius r feet is given by S(r) = 2πrh+2πr².
We need to find, the instantaneous rate of change of the surface area with respect to the radius, r, when r = 3.
Taking the differentiation, of the formula given, S(r) = 2πrh+2πr². w.r.t radius r,
d [S(r)] / dr = 2πh + 4πr
= 2π [h + 2r]
Put h = 2, r = 3
= 16π
Hence, the instantaneous rate of change of the surface area with respect to the radius, r, when r = 3, is 16π
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based on the polynomial remainder theorem, what is the value of the function when x=5? f(x)=x^4-2x^3+5x^2-7x+4
Answer:
f(5)=469
Step-by-step explanation:
To find the value of the polynomial at x=5, we substitute the value 5 in for x into the polynomial. We then simplify using PEMDAS or order of operations.
[tex]x^4-2x^3+5x^2-7x+4\\(5)^4-2(5)^3+5(5)^2-7(5)+4\\625-250+125-35+4\\375+125-35+4\\500-35+4\\465+4\\469\\f(5)=469[/tex]
Answer:
469
Step-by-step explanation:
Solve the linear equation.
7x+10=1/3(12x−3)+14x
Enter your answer in the box.
[tex]7x+10=\dfrac{1}{3}(12x-3)+14x\qquad\text{use distributive property}\\\\7x+10=\dfrac{1}{3}\cdot12x-\dfrac{1}{3}\cdot3+14x\\\\7x+10=4x-1+14x\\\\7x+10=18x-1\qquad\text{substitute 10 from both sides}\\\\7x=18x-11\qquad\text{subtract 18x from both sides}\\\\-11x=-11\qquad\text{divide both sides by (-11)}\\\\\boxed{x=1}[/tex]
Answer:
I believe the correct awnser is x=1 I took the test
My answer is probably wrong, so can someone help me get the right one?
Answer:
The correct answer option is [tex]f(x)=-\frac{1}{2} x+3[/tex].
Step-by-step explanation:
We will take easy (clear) points on the graph i.e. (0, 3) and (6, 0) and use them to find the equation of the line given on the graph.
To find the slope:
Slope = [tex]\frac{0-3}{6-0} =-\frac{1}{2}[/tex]
Putting the values of the coordinates of one of the chosen points and slope of the line in the standard form of equation of a line to find the y-intercept (c).
[tex]y=mx+c[/tex]
[tex]3=-\frac{1}{2} (0)+c\\\\c=3[/tex]
So the equation of the graphed line in terms of f(x) will be:
[tex]f(x)=-\frac{1}{2} x+3[/tex]
Solve the following equation for y
x= y – 20
Answer:
y = x + 20
Step-by-step explanation:
Isolate the variable you are solving for, y. Note the equal sign, what you do to one side, you do to the other. Add 20 to both sides
x (+20) = y - 20 (+20)
y = x + 20
y = x + 20 is your answer
Answer: Y= x+20
Step-by-step explanation: x = y-20, you must first add 20 to both sides to get Y on its own. So x+20 = y - 20 + 20, the twenties cancel each other out giving us x+20 = y or y=x+20
17. Write the equation of a line that is perpendicular to the given line and that passes through the given point.
y - 2 = 7/3 (x + 5); (-4, 9)
[tex]\text{Let}\ k:y=m_1x+b_1\ \text{and}\ l:y=m_2x+b_2.\\\\l\ \perp\ k\iff m_1m_2=-1\to m_2=-\dfrac{1}{m_1}\\\\\text{We have the line in point-slope form:}\\\\y-y_1=m(x-x_1)\\\\m-slope\\\\y-2=\dfrac{7}{3}(x+5)\to m_1=\dfrac{7}{3}\\\\\text{therefore}\ m_2=-\dfrac{1}{\frac{7}{3}}=-\dfrac{3}{7}.\\\\\text{We have the slope}\ m=-\dfrac{3}{7}\ \text{and the point}\ (-4,\ 9).\ \text{Substitute:}\\\\y-9=-\dfrac{3}{7}(x-4))\\\\\boxed{y-9=-\dfrac{3}{7}(x+4)}[/tex]
Drew bout a chemistry book for $30. Later that book was marked down by 20%. By how much has the value been decreased
He price of a desktop computer decreases from $1360 to $1020 what is the percentage decreasing in its price ?
Answer:
Dec % = 340/1360*100= 25%
A bag contains 4 brown marbles,3 green marbles,2 red marbles and 1 purple marble.Calulate the probability of drawing each color, and write each answer as a fraction as a percent and as a decimal
Answer:
Probability states the ratio of number of favorable outcomes to the total number of possible outcomes.
i.e, [tex]probability = \frac{Number of favourable outcomes }{Total number of possible outcomes}[/tex]
A bag contains:
Brown marble = 4
Green marbles = 3
Red marbles = 2
Purple marble = 1
Total number of possible outcomes = (4+3+2+1) = 10 marbles
P(Brown marbles) = [tex]\frac{4}{10}=\frac{2}{5} = 40\% = 0.4[/tex]
P(Green marbles) = [tex]\frac{3}{10} = 30\% = 0.3[/tex]
P(Red marbles) = [tex]\frac{2}{10}=\frac{1}{5} = 20\% = 0.2[/tex]
and
P(Purple marbles) = [tex]\frac{1}{10}= 10\% = 0.1[/tex]
Answer:The possible outcome would be 10, because 4 brown marbles + 2 red marbles + 1 purple marble+3 green marbles = 10 outcomes!
Step-by-step explanation:
I just did it =w=
I really need help. This is very confusing for me. NEED HELP!!!
Answer:
(16)
Given the statement: Elmwood st. and oak Dr. are the same distance.
All intersection are perpendicular.
To prove that: Peach Dr. tree is the same distance as Sycamore Ln.
It given that all the intersection are perpendicular which means each interior angles are of [tex]90^{\circ}[/tex]
By rectangle properties:
Each of the interior angles are [tex]90^{\circ}[/tex]The opposite sides of the rectangle are equalThe diagonal of a rectangles bisects each other.Since, Elmwood st. and oak Dr. are the same distance.
then, by rectangle properties;
Peach Dr. tree is the same distance as Sycamore Ln proved!
6.10
(11)
Given: [tex]\angle A \cong \angle T[/tex] , [tex]\overline{MA} \cong \overline{HT}[/tex]
To prove: [tex]\triangle MAX \cong \triangle HTX[/tex]
In ΔMAX and ΔHTX
[tex]\angle A \cong \angle T[/tex] [Angle] [Given]
[tex]\overline{MA} \cong \overline{HT}[/tex] [Side] [Given]
Vertical angle theorem states that angles that are opposite each other.
Since, these angles are formed when two lines cross each other.
And also vertical angles are congruent to each other.
Since, [tex]\angle MXA[/tex] , [tex]\angle HXT[/tex] are vertical angles
[tex]\angle MXA \cong \angle HXT[/tex] [Vertical angles are congruent]
AAS (Angle-Angle-Side) theorem states that if two angles and a non-included side in one triangle are congruent to two corresponding angles and a non-included side in another triangle, then those triangles are congruent.
Then, by AAS theorem,
[tex]\triangle MAX \cong \triangle HTX[/tex]
(14)
Given: [tex]\overline{AX} \cong \overline{TX}[/tex] , [tex]\angle A \cong \angle T[/tex]
Prove that: [tex]\overline{MX} \cong \overline{HX}[/tex]
In [tex]\triangle MXA[/tex] and [tex]\triangle HXT[/tex]
[tex]\overline{AX} \cong \overline{TX}[/tex] [Side] [Given]
[tex]\angle A \cong \angle T[/tex] [Angle] [Given]
[tex]\angle MXA \cong \angle HXT[/tex] [Vertical angles are congruent]
ASA (Angle -Side-Angle) theorem states that if two angles and the included side of one triangle are congruent to the corresponding parts of another triangle, then these triangles are congruent.
then by ASA theorem;
[tex]\triangle MAX \cong \triangle HTX[/tex]
CPCT [Corresponding Part of Congruent triangles are congruent.]
⇒[tex]\overline{MX} \cong \overline{HX}[/tex] [By CPCT] proved!
Consider the equation below. (if an answer does not exist, enter dne.) f(x) = 5 sin(x) + 5 cos(x), 0 ? x ? 2? (a) find the interval on which f is decreasing. (enter your answer using interval notation.)
Answer: [tex]\bold{[\dfrac{\pi}{4},\dfrac{5\pi}{4}]}[/tex]
Step-by-step explanation:
Step 1: Create a table
x | 5sinx + 5cosx = y
0 | 0 + 5 = 5
[tex]\frac{\pi}{2}[/tex] | 5 + 0 = 5
π | 0 + -5 = -5
[tex]\frac{3\pi}{2}[/tex] | -5 + 0 = -5
2π | 0 + 5 = 5
Notice that y = 5 at 0 and [tex]\frac{\pi}{2}[/tex] , so there will be a vertex at their midpoint. Similarly at y = -5.
Midpoint of 0 and [tex]\frac{\pi}{2}[/tex] is [tex]\dfrac{\pi}{4}[/tex] . Midpoint of π and [tex]\frac{3\pi}{2}[/tex] is [tex]\dfrac{5\pi}{4}[/tex]
(graph is attached to confirm interval)
Write the first five terms of the sequence defined by the recursive formula
Answer:
The correct answer option is: [tex]S_9=\frac{9}{2} (2+26)[/tex]
Step-by-step explanation:
We know that,
the sum of the first [tex]n[/tex] terms of an Arithmetic Sequence is given by:
[tex]S_9=\frac{n(a_1+a_n)}{2}[/tex]
where [tex]n[/tex] is the number of terms,
[tex]a_1[/tex] is the first term of the sequence; and
[tex]a_n[/tex] is the first term of the sequence.
So for [tex]a_n=3n-1[/tex],
[tex]a_1=3(1)-1=2[/tex]
and
[tex]a_9=3(9)-1=26[/tex]
Putting these values in the formula to get:
[tex]S_9=\frac{9(a_1+a_9)}{2}[/tex]
[tex]S_9=\frac{9(2+26)}{2} \\\\S_9=\frac{9}{2} (2+26)[/tex]
First five terms:
[tex]a_1=3(1)-1=2[/tex]
[tex]S_1=\frac{1(2+2)}{2}[/tex]=2
[tex]a_2=3(2)-1=5[/tex]
[tex]S_2=\frac{2(2+5)}{2}[/tex]=7
[tex]a_3=3(3)-1=8[/tex]
[tex]S_2=\frac{3(2+8)}{2}[/tex]=15
[tex]a_4=3(4)-1=11[/tex]
[tex]S_4=\frac{4(2+11)}{2}[/tex]=26
[tex]a_5=3(5)-1=14[/tex]
[tex]S_5=\frac{5(2+14)}{2}[/tex]=40
Answer: the corrrect one is A s9=9/2(2+26)
Find the slope of the line
Answer: 1/4
Step-by-step explanation:
Take any two point on the line: my starting point is -4,0 and I will be moving to 0,1.
Remember that slope = rise/run, so count up one and go to the right 4 to get to 0,1, so it would be 1/4.
Hopefully that explains it!
We can use the points (4, 0) and (0, 1) to solve.
Slope formula: y2-y1/x2-x1
= 1-0/0-4
= 1/4
Best of Luck!
Perry set450 chairs up perry put 20 chairs in a row he already set up15 rows howmany more chairs he need to set up
PLEASE HELP ASAP!!! CORRECT ANSWERS ONLY PLEASE!!!
Simplify.
Answer: B
Step-by-step explanation:
3x³ - 7x² + 0x + 12 → 3x³ - 7x² + 0x + 12
- (3x³ + 6x² + 10x + 0) → + (-3x³ - 6x² - 10x - 0)
-13x² - 10x + 12
Complex Roots Problem #5
Question: if a parabola never touches the x axis, then it doesn't have any real roots or solutions
Answer: True
A real solution only occurs if the graph touches or crosses the x axis, as the x intercept (or root) is a visual indication of a real number solution. In this case, we have 2 complex solutions for the parabola
--------------------------------------------------------------
Question: What number is equivalent to sqrt(-49) ?
Answer: choice A) 7i
Simplify as follows
sqrt(-49) = sqrt(-1*7^2)
sqrt(-49) = sqrt(-1)*sqrt(7^2)
sqrt(-49) = i*7
sqrt(-49) = 7i
note: be careful not to toss in -7i as one of the answers, because it's not. The square root of a number is exactly one output. For instance, if you take the square root of 25, the result is 5 (not plus or minus 5).
Given the table below, determine if the data represents a linear or an exponential function and find a possible formula for the function.
Answer:
Option b is correct.
Linear function ;
y =2x
Step-by-step explanation:
The formula y=f(x)=mx +c ......[1] is said to be a linear function. That means the graph of this function will be a straight line on the (x, y) plane, where m represents slope and b is the y-intercepts.
Consider any points from the table;
(1, 2) and (2, 4)
substitute these point in [1] we get;
for (1, 2)
⇒x = 1 and f(x) = 2 we have
2 = m + c
or
c = 2- m ......[1]
for (2, 4) we have;
4 = 2m + c .....[2]
Now, substitute equation [1] into [2] we get;
4 = 2m + 2 -m
Combine like terms;
4 = m + 2
Subtract 2 from both sides we get;
4 -2 = m +2 -2
Simplify:
2 = m or
m = 2
Substitute the value of m = 2 in [1] to solve for c;
c = 2 -2 = 0
c =0
⇒ y = 2x +0
y = 2x
therefore, the data in the table represents the Linear function and a possible formula for the linear function is; y = 2x
Answer:
Option B. y = 2x
Step-by-step explanation:
The given table in the question is
x 0 1 2 3 4
f(x) 0 2 4 6 8
As we know if the function is exponential or in the form of [tex]f(x) = (a)^{x}[/tex] then for x = 0 value of this exponential function will be f(0) = 1 but as per table f(0) = 0, so the given function is not an exponential function.
Therefore the given function is a linear function.
Linear function is always in the form of y = mx + c
Now f(0) = m×0 + c = 0
c = 0
f(1) = m×1 = 2
m = 2
Now we replace the values of m and c in y = mx + c
The equation will be y = 2x.
Option B. y = 2x is the answer.
Has anyone done the answers for Algebra 2 EOCA Semester 1 Final with 35 questions???
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55 points for all answers correctly answered please. Need done ASAP by tomorrow morning
Answer:
Correct choices are A and D.
Step-by-step explanation:
According to the table for the given function [tex]h(x),[/tex] you can write the same table for the inverse function [tex]h^{-1}(x).[/tex] With this aim change [tex]x[/tex] into [tex]h^{-1}(x)[/tex] and [tex]h(x)[/tex] into x:
[tex]\begin{array}{ccccccc}x&2&5&8&11&14&17\\h^{-1}(x)&0&1&2&3&4&5\end{array}[/tex]
Then you can see that points (5,1) and (2,0) are on the graph of the inverse function.