The number of signature on the petition in the first week is 6
What is doubling?A double is a number or an amount that is twice as large as the given number or amount. So, if we multiply a number by 2 or if we add a number to itself, we say that the number is doubled.
Since the signature doubles every week
represent the initial signature by x
p(o) = x
second week =2 x
third week =4 x
fourth week = 8x
fifth week =16 x
sixth week = 32x
32x = 192
x = 192/32
x = 6
therefore the number of signature on the petition in the first week is 6
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Use the circle graph shown below to answer the question.
If 30 sixth graders own birds, how many sixth graders were surveyed?
The total number of sixth graders surveyed is 600 sixth graders
Solving statistics problem using pie chartsThe given diagram is a pie chart with different percent of pet owned by sixth graders.
We need to determine the number of sixth grader surveyed if 30 sixth graders own birds.
Number of birds = 5% of the total sixth graders
Substitute the given parameters
30 = 0.05 * T
T = 30/0.05
T = 600
Hence is 30 sixth graders own birds, then 600 sixth graders were surveyed.
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Help! I need to solve this! Show work please
A x=3 hope it helps-parker have a nice day
Helppp
A circle has an arc whose measure is 80 degrees and whose length is 88pi. What is the diameter of the circle?
The diameter of the circle is 396 units
What is a diameter?The diameter is the length of the line through the center that touches two points on the edge of the circle.
A diameter is twice the radius of a circle.All diameters are segment but not all segments are diameter.
length of an arc = tetha/360 × πd
l = 80/360 × π d
88π = 80/360 × π d
80d = 88× 360
80d = 31680
divide both sides by 80
d = 31680/ 80
d = 396 units
therefore the diameter of the circle is 396 units
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The table of values represents a linear function.
X Y
-2. 1
0. -9
2. -19
4. -29
6. -39
Complete the equation below to represent the function defined by the table in the form
y = mx + b.
Answer:
5 mx plus b which you have to do 5 plus m to get 5m which is ur answer
a ramp 46 ft long rises to a platform. the bottom of the platform is 20 fr from the foot of the ramp. Find x, the angle of elevation of the ramp
The angle of elevation is 66.50 degrees
How to determine the angle of elevationFrom the question, we have the following parameters that can be used in our computation:
Rise = 46 ft
Length = 20 ft
The angle of elevation, x is calculated as
tan(x) = 46/20
Evaluate
tan(x) = 2.3
Take the arc tan of bth sides and evaluate
x = 66.50
Hence, the angle is 66.50 degrees
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For number 8 find the value of each variable using the properties of a parallelogram
The value of x is given as follows:
x = 10.
How to obtain the value of x?In a parallelogram, the consecutive angles are supplementary, meaning that the sum of their measures is of 180º.
The measures of the consecutive angles for the parallelogram in this problem are given as follows:
6x and 12x.
Hence the value of x is obtained as follows:
6x + 12x = 180
18x = 180
x = 180/18
x = 10.
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which equation has a slope of -1 and passes through the point (4,-5)
Answer:
y = -x - 1
Step-by-step explanation:
y = mx +c
y = -x + c [ m = slope]
As the line passes through (4,-5)
-5 = -4 + c [Substituting value of x and y]
c = -1 [Solving the above equation]
Which algebraic expression is equivalent to the expression below? 9(4x + 8) - 4 A. 36x + 4 B. 36x + 68 C. 36x + 36 D. 36x + 72
Answer:
D
Step-by-step explanation:
9(4x + 8) ← multiply each term in the parenthesis by the 9 outside
= 36x + 72
Classify the following triangle check all that apply 36,8.68,7,54,5.1
We can see that the triangle is given as one of the angles is 90 degrees . The triangle is a right-angle triangle, and scalene also.
What is a right-angled triangle?A right-angled triangle is a triangle having one of its angles with measure of 90°
The slanted side of that triangle is called Hypotenuse and it is the longest side in that triangle.
We can see that the triangle is given as one of the angles is 90 degrees and the other two angles are 36 and 54 degrees.
If one of the angles is 90° then the triangle is a right-angled triangle.
Also, the length of the two sides is given as 8.66 units and 5.1.
We have already concluded that the triangle is a right-angle triangle, so all the three sides of the triangle must be different.
This implies that the triangle is scalene also.
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The ratio ? Describes the part to whole relationship for boys
In a case whereby Mr. Ahmed has 31 students in his class. There are 14 boys and 17 girls.
The ratio of the part-to-whole relationship for boys is 14/31.the ratio of the part-to-whole relationship for girls is 17/31.How can the ratio be described?From the question we were told that there are 14 boys in the class wehereby there the whole class has 31 students
Then we can conclude that te ratio of the part-to-whole relationship for boys= 14/31.
From the question, there are 17 girls in the class, then we can conclude that the ratio of the part-to-whole relationship for girls = 17/31.
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complete question:
Mr. Ahmed has 31 students in his class. There are 14 boys and 17 girls.
The ratio
describes the part-to-whole relationship for boys.
The ratio
describes the part-to-whole relationship for girls.
2. A toy company sells 3-packs of sphere-shaped bouncy balls. If the
company ships the three bouncy balls in a cylindrical container like the one
shown, about how much empty space will there be in the container? Use
3.14 for pi and round to the nearest whole number.
10 cm
2 cm
3 cm
3 cm
3 cm
The amount of free space inside the cylindrical container would be
92 cm³.
What is a cylindrical shape?A cylinder is a three-dimensional solid object having two similarly circular bases that are joined by a curving surface that is positioned a certain distance from the center.
Examples of cylinders are toilet paper rolls and cold beverage cans.
The volume of a cylinder is πr²h.
We know, The volume of a cylinder is πr²h and the volume of a
sphere is (4/3)πr³.
Therefore, The amount of empty space that will be there is the volume the spherical balls subtracted from the volume of the cylinder which is,
= [tex][\pi{(2)^2\times10] - [(\frac{4}{3})\pi(2)^3] cm^3[/tex]
= [tex]40\pi - (32/3)\pi cm^3[/tex].
= [tex]92 cm^3[/tex].
Q. A toy company sells 3-packs of sphere-shaped bouncy balls the height of the cylindrical package is 10 cm and the radius of each ball is 2 cm, If the company ships the three bouncy balls in a cylindrical container like the one shown, how many empty space will there be in the container?
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PLEAS ONLY ANSWER IF YOU KNOW
The missing reasons for the proof are given as follows:
1) AB/DB = CB/EB - Given
2) ∠ABC ≅ DBE - Opposite Angles
3) ΔABC ~ ΔDBE - Angle - Side - Side Postulate.
What does the Angle - Side - Side Postulate say?
The Angle-Side-Side (ASA) Postulate states that if two angles and a side of one triangle are congruent to two angles and the corresponding side of another triangle, then the two triangles are congruent.
In other words, if two triangles have the same orientation and their corresponding angles and sides match in size, the two triangles are identical. The ASA Postulate can be used to determine the congruence of triangles and to prove theorems and solve problems in geometry and related fields.
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H
116
What does it mean when a two-way table shows an association between
two data sets?
The solution is given below.
What is a two-way table?A table in which the rows represent the categories for one category variable, the columns represent the categories of a second category variable and each cell displays the frequency (or proportion) resulting for that row and column combination for the two variables.
here, we have,
1. Positive association - direct relationship: increase = increase and vice versa
2. Scatterplot - scattered data
3. Bivariate data - two variables
4. Two-way table - displays two variables into rows and columns
5. Two-way relative frequency table - shows the relative frequencies in the table
6. Association - how sets of data are related
7. Negative association - reverse relationship: increase = decrease and vice versa
8. Relative frequency - frequency of a specific data value divided by the total number of data values
9. No association - no relationship
10. Strength of association
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Build subtraction equations using the indicated
18-x-x-x=0
x=6 is the solution to the equation 18 - x - x - x = 0.
What is Equation?Two or more expressions with an Equal sign is called as Equation.
One way to build a subtraction equation using the indicated expression is:
18 - x - x - x = 0
Add the like terms
18 - 3x = 0
Now let us solve for x
we can isolate x on one side of the equation by subtracting 18 from both sides:
-3x = -18
Divide both sides by -3 to find the value of x:
x = 6
Therefore, a solution to the equation 18 - x - x - x = 0 is x = 6.
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Which relation is NOT a function?
{(10, –4), (–10, 14), (14, –10)}
{(–4, –10), (–2, –4), (–10, –1), (–1, –7), (1, 10), (–3, –1)}
{(–4, 10), (14, 3), (15, 14), (10, 3)}
{(11, 16), (12, 14), (14, 14), (11, 13), (21, 12)}
{(11, 16), (12, 14), (14, 14), (11, 13), (21, 12)}
This is because the the number 11, an x-value, is used twice and if an x-value is used more than once then it is not a function. A function is a relation between sets where there is only one output for each input
The apothem is the perpendicular distance from the _____ of a regular polygon to any one of its sides.
The apothem is the perpendicular distance from the center of a regular polygon to any one of its sides.
The apothem of a regular polygon is the perpendicular distance from the center of the polygon to any one of its sides because it serves as a measure of the inradius, or the radius of the circle inscribed within the polygon. In a regular polygon, all sides are congruent and all interior angles are equal, so the apothem is the same for all sides.
To see this, imagine drawing radii from the center of the polygon to each vertex, and then drawing the perpendicular bisector of each side. These perpendicular bisectors will all intersect at the same point, which is the center of the polygon. The apothem is the length of the line segment connecting this center point to any one of the sides of the polygon.
The apothem is useful in finding the area of a regular polygon. By using the formula for the area of a regular polygon in terms of the apothem and the number of sides, one can find the area of a regular polygon without having to find the exact shape of the polygon.
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What are the outliers of the data set?
13, 24, 25, 25, 25, 26, 27, 27, 27, 28, 36
Select EACH correct answer.
If m<5=115°,what is the m<3?
The measure of angle 3 from the diagram is 115 degrees
Line and angles in geometryThe given figure is a line geometry. An angle is defined as the point where two lines meet.
Given that the measure of <5 is 115 degrees, the measure of <3 is calculated as shown below:
m<3 = m<5 = 115 degrees
This angles are equal since they are alternate exterior angles.
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Please help me picture attached
Answer: [tex]370.08 m^2[/tex]
Step-by-step explanation: Lets do the easy part first. We see that there is a proven square in the center of the figure with side lengths of 12. The area formula is [tex]l*w[/tex] and since its a sqaure we can just multiply a side length by itself.
[tex]12*12 = 144[/tex]
^^ Thats the area of the square.
We now have to do the more difficult part which is finding the area of the semi circles. I combined the semi circles to form 2 circles with diameter 12. Now we know that the area of a circle is [tex]\pi r^2[/tex] and that the diameter is [tex]2r[/tex] so we just divide 12 by 2 to get the radius which is 6. Now we use the area formula and multiply it by 2 because there are 2 circles.
[tex]A = 2(3.14)(6^2)[/tex]
which is
[tex]226.08[/tex]
Now add it to the area of the square to get the area of the figure.
[tex]226.08+144 = 370.08[/tex]
put units and thats it!
A helicopter flying a search pattern flies 2
miles in a straight line, turns 90°
left, flies 1
more mile, then turns and returns to its starting location. What is the total distance flown to the nearest tenth of a mile?
Answer:
Total distance flown = 5.2 miles
Step-by-step explanation:
The path of the helicopter is that of a right triangle with the first stretch of 2 miles as one leg and the other stretch 90° left as the other leg.
The return trip direct to starting point is the hypotenuse of the right triangle
By the Pythagorean theorem if c is the hypotenuse and a, b are the two legs
c² = a² + b²
Letting a = 2mi and b= 1mi,
c² = 2² + 1²
c² = 4 + 1
c² = 5
c = √5 (only positive square root considered)
c =2.236 mi
c = 2.236 mi to the nearest tenth
Total distance = 2 + 1 + 2.236
= 5.236
= 5.2 mi to the nearest tenth
Value of T please and thank you !!!!
the value of "t" will be 28 degrees for the given circle.
What are the properties of a circle?The following four properties and their proofs were introduced:
1: The angles at the center and at the circumference of a circle are subtended by the same arc.
2: Angles at the circumference are subtended by a diameter.
3: Angles at the circumference of a circle subtended by the same arc.
Given, a circle with an angle between two secants of 28 degrees.
From the intersecting Secant theorem of a circle:
The angle between secant = bigger arc -smaller arc)/2
In our case,
28 = (3t -t)/2
2t/2 = 28
t = 28
therefore, the value of "t" will be 28 degrees for the given data.
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the longer diagonal of a field in the shape of a quadrilateral is 120 m and the length of the perpendiculars from the opposite vertex upon a longer diagonal is 20 m and 30 m find the area of the field Step by Step Explaination class 8 lesson no 11 mensuration
The area of the field is 900√10 m².
What is the Pythagorean theorem?Pythagorean theorem states that for a right triangle, the square of the hypotenuse is equal to the sum of the squares of the other two sides.
We can apply this theorem only in a right triangle.
Example:
The hypotenuse side of a triangle with the two sides as 4 cm and 3 cm.
Hypotenuse side = √(4² + 3²) = √(16 + 9) = √25 = 5 cm
We have,
Quadrilateral ABCD.
The longer diagonal connects vertices A and C, and let E and F be the feet of the perpendiculars from vertices B and D to the longer diagonal AC.
From the figure,
BE = 20 m
DF = 30 m
AE = EC = 120/2 = 60 m
Now,
The area of the quadrilateral.
The area of a trapezoid.
= (sum of parallel sides) x (height) / 2
Using the Pythagorean theorem,
AB² = AE² + BE²
60² + 20² = 4000
AB = √(4000)
AB = 20 √10
And,
CD² = CE² + DF²
CD² = 60² + 30²
CD² = 4500
CD = √(4500)
CD = 15 √20
Now,
Area = AB + CD x 1/2 x AC
= 20√10 + 15√20 x 1/2 x 120
= 900√10
Therefore,
The area of the field is 900√10 m².
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You pick a card at random.
4 5
6 7 8 9
What is P(5)
Write your answer as a percentage.
Total cards = 4 (6,7,8,9), If the card is not 9, the required card will be (6,7,8), Number of cards that are not 9 is 3, Probability = expected/total P( 5) = 3/4 and the probability of picking 5 is 16.67%.
What is Probability?
The probability of an occurrence is a number used in science to describe how likely it is that the event will occur. It is stated as a number between 0 and 1, or, when using percentage notation, in the range between 0% and 100%.The higher the probability, the more likely it is that the event will occur. The probability is typically expressed as the proportion of positive outcomes to all outcomes in the sample space.It is written as Probability of an Event P(E) = (Number of Favorable Outcomes) (Sample space).Simple probability calculations can be done by adding the probabilities together.Calculating a result or the likelihood that an event will occur is known as simple probability.Probability statistics are used by insurance firms to estimate the likelihood of having to pay out a claim. A simple probability is computed by dividing a particular event by all potential outcomes.There are a total of 6 numbers in the grid, and only one of them is 5. Therefore, the probability of selecting 5 is:
P(5) = 1/6
To write this as a percentage, we multiply by 100:
P(5) = 1/6 * 100% = 16.67%
Therefore, the probability of picking 5 is 16.67%.
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2, 10, 50, 250, 1250
Write the explicit form of the sequence above.
The explicit function of the sequence is a(n) = 2(5)^n-1
How to determine the explicit function of the sequenceThe definition of the function is given as
2, 10, 50, 250, 1250
The above definitions imply that we simply multiply 5 to the previous term to get the current term
Using the above as a guide,
So, we have the following representation
a(1) = 2
Common ratio, r = 5
So, we have
a(n) = a * r^n-1
This givs
a(n) = 2(5)^n-1
Hence, the sequence is a(n) = 2(5)^n-1
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Can one report both student T test and Mann-Whitney U test to denotes significant difference ?
Yes, both tests can be reported to denote a significant difference. The T-test is used for normally distributed data, whereas the Mann-Whitney U test is used for non-normally distributed data.
Yes, both the Student's T-test and the Mann-Whitney U test can be used to denote a significant difference. The Student's T-test is used to compare the means of two normally distributed samples and determine if the difference in means is statistically significant. The Mann-Whitney U test is used to compare the means of two non-normally distributed samples and determine if the difference in means is statistically significant. Both tests are used to test the null hypothesis that the means of the two samples are the same. If the null hypothesis is rejected, it can be concluded that the difference between the means is statistically significant. Both tests provide a measure of the strength of the evidence against the null hypothesis, which can be used to determine if the difference between the means is significant.
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arge telescopes often have small fields of view. For example, the Hubble Space Telescope’s (HST’s) advanced camera has a field of view that is roughly square and about 0.06 degree on a side.
Calculate the angular area of the HST’s field of view in square degrees.
A. 0.006 Square degrees
B. 0.36 Square degrees
C. 0.0036 Square degrees
D. 0.06 Square degrees
The correct response is C. 0.0036 Square degrees The field of vision of the Hubble Space Telescope is only 0.006 degrees, which is around 100 times less than that of the Micro Observatory telescopes. But it has a 100 times better angular resolution!
Skywatchers can readily view planets with just a modest or medium-sized telescope. How much of our solar system is visible will wow you! Additionally, you don't need a completely dark sky to see all of the planets in our solar system; a telescope can still make Venus, Mars, Jupiter, and Saturn easily visible even when viewed in a city. From $100 to well over $10,000, a telescope can be purchased. In 2022, you can anticipate that a good telescope for visual observing will start around $300 and a telescope capable of deep-sky astrophotography would start around $800. With a 25x telescope, even the tiniest telescope should be able to see Saturn's rings.
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Large telescopes often have small fields of view. For example, the Hubble Space Telescope's (HST's) advanced camera has a field of view that is roughly square and about 0.06 degree on a side. Calculate the angular area of the HST's field of view in square degrees.
A. 0.006 Square degrees
B. 0.36 Square degrees
C. 0.0036 Square degrees
D. 0.06 Square degrees
The list below shows prices of several houses on Hill Street. 45,000, 50,000, 60,000, 60,000. 65,000, and 1,820,000. Which of the following statements is true regarding this data? Select three that apply.
One possible true statement regarding the data is that there is a significant outlier in the dataset, which is the value of 1,820,000.
What is an Outlier?An outlier is an observation that is significantly different from other observations in the dataset, and it can have a big impact on the results of statistical analyses, such as the mean or the median.
In this case, the outlier value of 1,820,000 is much larger than the other values, which range from 45,000 to 65,000.
It is possible that this value represents a different type of house, or that it has some unique characteristics that make it much more expensive than the other houses on Hill Street.
Therefore, if we are interested in analyzing the prices of houses on Hill Street, it may be important to remove the outlier value before conducting any statistical analysis.
P.S: Your question is incomplete, so I gave you a general overview on how to interpret data.
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Work out the length x in the triangle below. If your answer is a decimal, give it to 1 d.p.
area = 42 m²
Answer:
The length of side x in the given triangle is 12 m.
Step-by-step explanation:
To calculate length x in the given triangle, use the Area Sine Rule.
[tex]\boxed{\begin{minipage}{7.6 cm}\underline{Area Sine Rule} \\\\$A=\dfrac{1}{2}ab \sin C$\\\\where:\\ \phantom{ww}$\bullet$ $C$ is the angle. \\ \phantom{ww}$\bullet$ $a$ and $b$ are the sides enclosing the angle. \\\end{minipage}}[/tex]
The given values are:
a = 14 mb = xC = 30°A = 42 m²Substitute the given values into the formula:
[tex]\implies 42=\dfrac{1}{2} \cdot 14 \cdot x\cdot \sin30^{\circ}[/tex]
Multiply 1/2 · 14 = 7:
[tex]\implies 42=7x\sin30^{\circ}[/tex]
Divide both sides of the equation by 7:
[tex]\implies 6=x\sin30^{\circ}[/tex]
Calculate sin30°:
[tex]\implies 6=\dfrac{1}{2}x[/tex]
Multiply both sides of the equation by 2:
[tex]\implies 12=x[/tex]
Therefore, the length of side x in the given triangle is 12 m.
Solve for x and y
5x + y = 9
10x -7y = -18
Answer:
x=1; y=4
Step-by-step explanation:
for this system, you could use either substitution or elimination
i'll solve it both ways
SUBSTITUTION:
5x+y=9 becomes y=-5x+9
10x-7y=-18; substitue y from y=-5x+9
10x-7(-5x+9)=-18
10x+35x-63=-18
45x=45
x=1
substitue x into y=-5x+9
y=-5(1)+9
y=4
ELIMINATION
5x+y=9
10x-7y=-18
multiple the top equation by 7 to get 35x+7y=63
now, 7y and -7y cancel out
add the two equations to get 45x=45
x=1
substitute into 5x+y=9
5(1)+y=9
y=4
A 2-column table titled f (x + 1) = 4 (f (x)) has 5 rows. Column 1 is labeled x with entries 1, 2, 3, 4, 5. Column 2 is labeled f (x) with entries 4, a, b, c, 1,024. What are the missing values in the table representing the recursively defined geometric sequence? a = b = c =.
Answer:
16, 64, 256
Step-by-step explanation: