Answer:
a) 6 b) 19 c) -9
Step-by-step explanation:
a) pattern= +1. 5th=2, 6th=3, 7th=4, 8th=5, 9th=6
b) pattern= +2. 5th=11, 6th=13, 7th=15, 8th=17, 9th=19
c) pattern= -2. 5th= -1, 6th= -3, 7th= -5, 8th= -7, 9th= -9
To evaluate whether customers enjoy the barista’s new smoothie, a restaurant manager surveys every other customer who orders the new smoothie. The manager determines that customers enjoy the new smoothie. Select all the statements that are true about the sampling method.
The sampling method used by the restaurant manager allows for efficient data collection and a representative sample, it may introduce bias and lacks randomization.
Based on the information provided, we can identify the following statements that are true about the sampling method used by the restaurant manager to evaluate customer satisfaction with the new smoothie:
1. The manager uses systematic sampling: The manager surveys every other customer who orders the new smoothie. This systematic approach involves selecting every second customer, providing a consistent and organized sampling method.
2. The sample is representative: By surveying every other customer who orders the new smoothie, the manager ensures that the sample includes a variety of customers, reflecting the customer population as a whole.
3. The sample size may be smaller than the total customer base: Since the manager surveys every other customer, the sample size may be smaller compared to surveying every customer. This allows for efficient data collection and analysis.
4.The sampling method may introduce bias: The manager may inadvertently introduce bias by only surveying every other customer. Customers who are skipped in the survey may have different preferences or opinions, leading to a potential bias in the results.
5. The sampling method lacks randomization: Randomization is not employed in this sampling method, as the manager systematically selects customers. This could potentially introduce bias or exclude certain types of customers from the sample.
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A file that is 233 megabytes is being downloaded. If the download is 14.1% complete, how many megabytes have been
downloaded? Round your answer to the nearest tenth.
Answer:
32.9
Step-by-step explanation:
233 * %14.1 = 233*.141=32.9
find x if y is-2, y=12 over X
Answer:
x=4
Step-by-step explanation:
Explanation:
As
x
and
y
are inversely proportional, the equation can be represented as
x
=
k
y
.
Substituting
x
=
2
and
y
=
12
, we get
2
=
k
12
=>
k
=
12
⋅
2
=>
k
=
24
.
Equation can be represented as
x
=
24
y
. So, when
y
=
6
, we get
x
=
24
6
=>
x
=
4
Kyle is making a frame for a rectangular piece of art. The length of the frame is 3 times the width, as shown below.
TIME REMAINING
54:06
3x
x
If Kyle uses 10 feet of wood to make the frame, what is the length of the frame? Write the answer in decimal form,
0.75
4.60
0.00
Answer:
3.75 feet
Step-by-step explanation:
The length of the frame is 3 times the width.
Let the width be x.
The length will be 3x.
Kyle uses 10 feet of wood to make the frame. This means that the perimeter is 10 feet.
The perimeter of a rectangle is:
P = 2(L + W)
=> 10 = 2(3x + x)
=> 10/2 = 4x
5 = 4x
=> x = 5/4 = 1.25 feet
The width is 1.25 feet. The length is therefore:
1.25 * 3 = 3.75 feet
Please help me answer the question from the photo
Answer:
A
Step-by-step explanation:
as it is a reflection (as in a mirror or in a lake, or ...), the distances from either side of the mirror must be equal.
What is the surface area of the sphere shown below with a radius of 7?
1
7
A. 49, sq. units
B. 65 sq. units
C. 196 sq. units
D. 457 sq. units
SUBMIT
Answer:
c
Step-by-step explanation:
the surface area for spheres is
4 × π × r²
4 × π × (7²) = 196 π
manuel hace los 3/7 de la tarea mientras su compañero csarlos hace solamente los 4/5 de lo que hizo manuel. que parte de la tarea hizo carlos
The fraction is 12/35.
How to compute the fraction?From the information, it was stated that Manuel does 3/7 of the task while Carlos did 4/5 of what Manuel did.
Therefore, the fraction that was done by Carlos will be:.
= 4/5 × 3/7
= 12/35
The fraction is 12 / 35.
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A wet sock is stuck onto the inner wall of a washing machine drum as it rotates at a steady speed the graph shows the sock displacement y, in inches, from the center of the drum, for a given number of seconds, X what is the diameter of the washing machine drum?
The diameter of the washing machine which is equivalent to the wavelength using the graph above would be = 2.5in.
How to determine the diameter of the washing machine's drum?To calculate the diameter of the washing machine drum, the formula that should be used is given below as follows;
V = fλ
where
V = displacement/time
F = 1/T
But;
Displacement = 10 in
Time = 2 seconds
V = 10/2 = 5 in/s
F = 1/2 = 0.5
λ = 5/0.5 = 2.5in
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Use the product rule to simplify the following expression. Assume that variables represent nonnegative real numbers.
√2x • √40x =
(type an exact answer using radicals as needed)
Answer: 4x√5
Step-by-step explanation:
√2x • √40x=
√(2*40*x*x)=
√80x^2=
√(16*5x^2)=4x√5
Danielle has taken five math tests so far this year. The tests are out of twenty points, and she has gotten the following scores.
17, 19, 20, 14, 16
What must Danielle score on her sixth test in order to have a mean of 17.5?
17
18
20
19
Answer:
Danielle score must be 18
Answer:
(d) 19
Step-by-step explanation:
The average of a set of numbers is their sum, divided by the number of numbers in the set.
SetupLet s represent the score Danielle must get on her sixth test. Then her average will be ...
average = (17 +19 +20 +14 +16 +s)/6
Danielle wants that to be 17.5, so we have ...
17.5 = (86 +s)/6
SolutionMultiplying by 6, we get ...
105 = 86 +s
19 = s . . . . . . . . subtract 86
Danielle must score 19 on her 6th test to have a mean of 17.5.
__
Additional comment
We can also figure this by considering the deviations from the average Danielle wants. They must total zero. The sum of deviations of the given scores is ...
(17 -17.5) +(19 -17.5) +(20 -17.5) +(14 -17.5) +(16 -17.5)
= -0.5 +1.5 +2.5 -3.5 -1.5 = -1.5
To bring the total to zero, Danielle must score 17.5 +1.5 = 19.
please help.
definitions: 1. definition of right triangle
2. definition of isosceles TrianglesReflexive
3. HL
4. definition of perpendicular
5. CPCTC
6. reflexive
From the two column proof below, we have seen ∠BAC ≅ ∠DAC by CPCTC
How to solve two column proof problems?The two column proof to show that ∠BAC ≅ ∠DAC is as follows:
Statement 1: ΔABD is Isosceles with base BD, AC ⊥ BD
Reason 1: Given
Statement 2: AB ≅ AD
Reason 2: Definition of isosceles Triangles
Statement 3: ∠1 and ∠2 are right angles
Reason 3: Definition of perpendicular
Statement 4: AC ≅ AC
Reason 4: Reflexive Property
Statement 5: ΔABC and ΔADC are right triangles
Reason 5: Definition of right triangle
Statement 6: ΔABC ≅ ΔADC
Reason 6: HL Congruency
Statement 7: ∠BAC ≅ ∠DAC
Reason 7: CPCTC
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Help due in a bit!
subject: Pythagorean Theorem
Do the following lengths form a right triangle?
Answer:
alright this is an easy question to do u have to use the Pythagorean theorem which is a²+b²=c²
so put the number of the triangle in this form for #1
Step-by-step explanation:
1.6²+9²=8²
=117=64
2.5²+13²=12²
=194=144
In the following diagram, ABCDABCD is a square. The coordinates of the vertices A,B,CA,B,C and DD are (3,3),(8,3),(8,8)(3,3),(8,3),(8,8) and (3,8)(3,8) respectively.
The square is dilated from the origin by a factor of 1111 to give A′B′C′D′A′B′C′D′.
What are the coordinates of point C′C′? (NEED THIS ASAP)
Answer:
Step-by-step explanation:
To dilate the square by a factor of 1111 from the origin, we need to multiply each coordinate by 1111.
The coordinates of point C are (8,8). So, to find the coordinates of point C' after dilation, we can simply multiply each coordinate by 1111:
x-coordinate of C' = 1111 * 8 = 8888
y-coordinate of C' = 1111 * 8 = 8888
Therefore, the coordinates of point C' are (8888, 8888).
Use the quadratic formula to solve the equation.
-4x²-15x+4=0
Select the correct choice below and, if necessary, fill in the answer box to complete your choice.
O A.
X=
(Use a comma to separate answers as needed.)
www.
OB. The solution is not a real number.
Answer:
the correct choice is A and the solutions are -4 and 0.25.
Step-by-step explanation:
Answer:
Option A. x = -4, or x = 1/4
Step-by-step explanation:
The question directs us to use the quadratic formula to solve the equation.
The quadratic formula applies for a one-variable quadratic equation in the form \(ax^{2} +bx+c=0\), and gives solutions \(x=\dfrac{-b \pm \sqrt {b^2 -4ac}}{2a}\)
Since the equation given in the question, \(-4x^{2} -15x+4=0\), is in the required form, with \(a=-4, ~~b=-15,~\text{and}~~c=4\), then the solutions are given by the formula:
\(x=\dfrac{-b \pm \sqrt {b^2 -4ac}}{2a}\)
\(x=\dfrac{-(-15) \pm \sqrt {(-15)^2 -4(-4)(4)}}{2(-4)}\)
\(x=\dfrac{15 \pm \sqrt {225 +64}}{-8}\)
\(x=\dfrac{15 \pm \sqrt {289}}{-8}\)
\(x=\dfrac{15 \pm 17}{-8}\)
\(x=\dfrac{15 + 17}{-8},~~\text{ or }~~x=\dfrac{15 - 17}{-8}\)
\(x=\dfrac{32}{-8},~~\text{ or }~~x=\dfrac{-2}{-8}\)
\(x=-4,~~\text{ or }~~x=\frac{1}{4}\)
I need to know this quick! 10 points is Max sorry
Answer:
A
Step-by-step explanation:
\(\frac{5}{6}\cdot \frac{1}{2}=\frac{5}{12}\)
Multiply top and bottom, on the top we get 5*1 which is 5 and on the bottom we get 6*2 which is 12.
can someone help please ?
Answer: B
Step-by-step explanation:
We can triple all the coordinates, so:
\(A'=(3 \cdot 3, 3 \cdot 3)=(9, 9)\\B'=(6 \cdot 3, 6 \cdot 6)=(18, 18)\\C'(9 \cdot 3, 3 \cdot 3)=(27, 9)\)
5 inches is
times as big as 1 inch.
12.7 centimeters is
times as big as 2.54 centimeters.
Answer:
d
Step-by-step explanation:
believe me it's d because it says it in the text above u just have to read it carefully
Mofor has homework assignments in five subjects. He only has time to do two of
them.
The decision of which two homework assignments to complete depends on Mofor's individual circumstances and priorities.
If Mofor only has time to do two homework assignments out of the five subjects, he will need to choose which subjects to prioritize. The specific subjects he chooses to work on will depend on various factors such as his strengths, weaknesses, upcoming deadlines, and personal preferences. Here are a few strategies he could consider:
1. Prioritize based on importance: Mofor can prioritize the homework assignments that carry more weight in terms of grades or have upcoming deadlines. This way, he ensures that he completes the assignments that have a higher impact on his overall academic performance.
2. Focus on challenging subjects: If Mofor finds certain subjects more difficult or time-consuming, he can prioritize those assignments to allocate more time and effort to them. This approach allows him to concentrate on improving his understanding and performance in subjects that require extra attention.
3. Balance workload: Mofor can choose to distribute his efforts evenly across subjects, selecting two assignments from different subjects. This strategy ensures that he maintains a balanced workload and avoids neglecting any particular subject.
The decision of which two homework assignments to complete depends on Mofor's individual circumstances and priorities. It is essential for him to consider his academic goals, time constraints, and personal strengths to make an informed decision.
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Write the equation of the line that passes
through the points (3, 1) and (-2, 6).
Answer:
x + y - 4 = 0
Hope this helps, if you need more of an explanation feel free to let me know!
To have academic integrity means that you A. complete your work honestly and only submit work that is your own B. submit work that your friends did for you C. complete your work by copying directly from the internet D. never ask anyone for help.
1.
Answer:
A. complete your work honestly and only submit work that is your own.
Answer:A
Step-by-step explanation:
Because it’s trust me
A librarian finds that the number of hours spent reading a book over a month, R, is dependent on the numbers of hours a person spends at the library over the course of a month, x, and can be modeled by the function
R(x)=26+1.5x
Draw the graph of the reading function by plotting its R-intercept and another point.
The given modeled function is R(x)=26+1.5x
where R(x) is the number of hours spent reading a book over a month
and x is the number of hours a person spends at the library over the course of a month.
Representing R(x) on the y-axis and x on the x-axis,
Puttinv x=0 to get the R(x) intercept as
R=36+1.5 x 0 = 36
So, (0,36) ia a point.
Determining other-point by putting any arbitrary value of x other than 0.
Putting x=2, to get the other point
R=36+1.5 x 10 =51
So, the other point is (10,51).
Now, joining both the points to get the graph of the given linear equation as shown in the figure.
Answer:
(0,26) (4,32)
Step-by-step explanation:
The function R(x)=26+1.5x is a linear equation, so its graph is a straight line that can be drawn by plotting 2 points and connecting them.
Its R intercept occurs when x=0, so
y(0)=26,
and (0,26) is the R-intercept.
To find another point, plug in another x value into the function y(x). For example, when x=4, we have
R(4)=26+1.5(4)=32.
So, (4,32) is another point on the graph of R(x).
Quadrilateral EFGH is an isosceles trapezoid with bases EH and FG. The measure of angle HGF is (9y + 3)°, and the measure of angle EFG is (8y + 5)°. What is the measure of angle HGF?
Answer:
21°
Step-by-step explanation:
In an sosceles trapezoid, the lower base and upper base angles are congurent
⇒ ∠HGF = ∠EFG
⇒ 9y + 3 = 8y + 5
⇒ 9y - 8y = 5 - 3
⇒ y = 2
⇒ ∠HGF = 9(2) + 3
= 18 + 3
= 21
The measure of angle HGF in the given isosceles trapezoid EFGH is calculated to be 21 degrees.
Explanation:This problem deals with the properties of an isosceles trapezoid, which is a type of quadrilateral. In an isosceles trapezoid, opposite angles are equal. In this case, angle EFG and angle HGF would be equal to each other given the shape is an isosceles trapezoid. So, their measures should be equal.
Here, the measure of angle HGF is given as (9y + 3)°, and the measure of angle EFG is (8y + 5)°. Setting these equal to each other to find the value of y, we get 9y + 3 = 8y + 5. By simplifying, we get the value of y is 2. Substituting the found value of y in angle HGF we get, 9*2+3 = 21 degrees.
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Given just the graph what 3 steps are required to write the equation of a line?
Answer:
Step-by-step explanation:
step 1:
determining the values for standard form for the equation of a line,
y = mx + c
Step 2:
calculation of m, where m is the gradient or slope which determines how steep the line is.
step 3:
calculation of c, where c is the height at which the line crosses the y - axis also known as y - intercept
the inequality –1 + 6(–1 – 3x) > –39 – 2x.
Answer:
x > 2
Step-by-step explanation:
-1+6(-1-3x)>-39-2x
-1-6 - 18x > -39 - 2x
-7 - 18x + 2x > -39 - 2x + 2x
-7 - 16x + 7 > -39 + 7
16x / 16 > -32 / 16
x > 2
Una librería consta de 5400 libros repartidos en 3 estanterías
En la estanteria A ahi el triple de libros que en la B y en la B la mitad que en la C calcular cuantos libros ahi en cada estanteria
Construir la ecuacion que plantea el problema
Answer:
B = 900 Libros
A = 2700 Libros
C = 1800 Libros
Step-by-step explanation:
A = 3B
2B = C
A + B + C = 5400
3B + B + 2B = 5400
6B = 5400
B = 5400 / 6
B = 900 Libros
A = 3B
A = 3(900)
A = 2700 Libros
C = 2B
C = 2(900)
C = 1800 Libros
All pictures are below please help Sandi had the following problem on her math test: . She showed her work on the test as follows: Given: Step 1: Step 2: Step 4: Step 5: In at least two paragraphs, explain the steps Sandi took to arrive at her answer. If she made any errors in her process clearly explain what she did wrong and how she could have made the error. If there is an error, provide the correct steps in your explanation of Sandi’s work. Use correct math terminology wherever appropriate.
Answer:
18
Step-by-step explanation:
6×4 +2 :2 - 7
24 +1 - 7
25 - 7
18
1 step 6×4
2step 2:2
3step 24 +1
4step 25 - 7
Answer:
18
Step-by-step explanation:
6 × 4 + 2 ÷ 2 - 7
24 + 1 - 7
25 - 7
= 18
thanks
Solve the inequality.
-6n > 54
Answer:
n < 9
Step-by-step explanation:
Solving an inequality is just like solving an equation, one uses inverse operations. The only difference is that when one multiplies or divides by a negative number, one must remember to flip the inequality sign to ensure that the expression remains true.
\(-6 n > 54\)
\(/ (-6)\)
\(n < 9\)
Consider a regular pyramid where p is the perimeter of the base, s is the slant height, BA is the base area, and LA is the lateral area. What is a valid formula for the surface area? Check all that apply. D A. SA = 2BA+ ' ps D B. SA = BA + 2LA O C. SA = BA + 3pS D D. SA = BA + LA O E. SA = 8• LA
Answer:
The valid formula for the surface area are;
\(\begin{gathered} SA=BA+LA \\ SA=BA+\frac{1}{2}ps \end{gathered}\)Explanation:
Given the regular pyramid with;
\(\begin{gathered} \text{perimeter of base = p} \\ \text{slant height = s} \\ \text{Base area = BA} \\ \text{Lateral area = LA} \end{gathered}\)The total surface area is the sum of the Base area and the Lateral area.
\(SA=BA+LA\)And the formula for calculating the lateral area of the pyramid is;
\(\begin{gathered} LA=\frac{1}{2}\times Perimeter\text{ of base }\times slant\text{ height} \\ LA=\frac{1}{2}ps \end{gathered}\)substituting LA into the formula above;
\(\begin{gathered} SA=BA+LA \\ SA=BA+\frac{1}{2}ps \end{gathered}\)The valid formula for the surface area are;
\(\begin{gathered} SA=BA+LA \\ SA=BA+\frac{1}{2}ps \end{gathered}\)a pharmaceutical salesperson receives a monthly salary of $5000 plus a commission of 7% of sales. write a linear equation for the salesperson’s monthly wage W in terms of monthly sales S. NEED TO TURN IT IN TODAY
Equation for the monthly wage will be → W = 0.07S + 5000
Given in the question,
Monthly salary of the sales-person = $5000Commission = 7% of total salesLet the total sales of a month = $S
Therefore, commission on this sale = 7% of $S
= $0.07S
Salary of the month = $5000
Total earnings (W) of the sales person = $(0.07S + 5000)
Therefore, equation for the monthly wage will be,
W = 0.07S + 5000
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solve the question below 77
Answer:
The height of the monument is 124.8 ft
Step-by-step explanation:
Right Triangles
The ratios of the sides of a right triangle are called trigonometric ratios. The tangent ratio is defined as:
\(\displaystyle \tan\theta=\frac{\text{opposite leg}}{\text{adjacent leg}}\)
The figure attached below shows the different distances involved in the problem. We heed to find the value of h, the height from Daniel's eyes. Then we'll add it to the 6 ft where his eyes are located from the ground.
Taking the angle of 68° as a reference:
\(\displaystyle \tan 68^\circ=\frac{h}{48}\)
Solving for h:
\(\displaystyle h=48\tan 68^\circ\)
Calculating:
h = 118.8 ft
The height of the monument is 118.8 ft + 6 ft = 124.8 ft