109.8
just took the quiz
I need help with this please. It's Geometry
The figure was rotated 270° counterclockwise and was translated 2 units to the left.
What is translation?Translation moves a shape left, right, up, or down but does not turn. The translated shapes (or the image) appear to be the same size as the original shape, indicating that they are congruent.
if we pick a point on the shape with a coordinate (3,2) if we rotate that point 270° counterclockwise the new coordinates become ( 2, -3)
From the graph the final coordinates of that point i (0, -3)
Which means that point moved from point 2 to point 0 2 units to the left.
So then shape was translated 2 units to the left.
In conclusion, the shape was translated by 2 units to the left.
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a student is randomly choosing the answer to each of seven true-false questions in a test. how many possible ways can the student answer the seven questions?
128 possible ways can the student answer the seven questions.
What is combinations?
Combinations are mathematical operations that count the number of potential configurations for a set of elements when the order of the selection is irrelevant. You can choose the components of combos in any order. Permutations and combinations can be mixed up.We have 7 true-false questions.
Each question can be answered 2 different ways and the answer for one question has no effect on the answer for another.
They are independent events.
So, the number of different ways that 7 questions can be answered is
= 2⁷
= 128 ways
Hence, there are 128 possible ways can the student answer the seven questions.
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jan has four times as many songs on her computer as ian has on his computer. if jan has 516 songs, how many songs does ian have on his computer?
129 many music on his Computer if Jan has 516 when on Jan's computer, there are four times as many songs as there are on Ian's.
Given that,
On Jan's computer, there are four times as many songs as there are on Ian's.
We have to find Ian has how many music on his Computer if Jan has 516.
We know that,
Let x be the number of songs lan has.
Since Jan has 4 times as many songs than lan then multiply x by 4.
Then equate this expression to 516.
4x=516
Divide 4 on both sides
4x/4=516/4
x=129
Therefore, 129 many music on his Computer if Jan has 516 when on Jan's computer, there are four times as many songs as there are on Ian's.
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Diagram shows two circles of the same size with centres A and C, touching each other at point B.
ACE is an equilateral triangle.
[Guna/Use =22/7
The circumference of each circle is 66cm and EB = 29.7cm. Find the area, in cm², of the shaded
region. Give the answer correct to three significant figures.
Answer:
Let us label the point where the two circles touch as point B. Since the two circles have the same size and are tangent to each other at point B, the radii of both circles must be equal. Let the radius of the circle be r.
Since triangle ACE is equilateral, all sides of the triangle must be equal in length. Since the circumference of each circle is 66 cm, the length of each side of triangle ACE must be 66/3 = 22 cm.
Since the radius of the circle is tangent to the side of the triangle at point B, the length of line segment EB must be equal to the radius of the circle. Since the length of line segment EB is 29.7 cm, the radius of the circle must be 29.7 cm.
The area of the shaded region can be found by subtracting the area of the smaller circle from the area of the larger circle. The area of a circle with radius r is given by the formula A = πr², where A is the area of the circle and r is the radius of the circle. Since the radius of the smaller circle is 29.7 cm, the area of the smaller circle is 29.7²π = 869.43π cm².
Since the radius of the larger circle is half the length of the side of the triangle, the radius of the larger circle must be 22/2 = 11 cm. The area of the larger circle is therefore 11²π = 121π cm².
The area of the shaded region is therefore 121π - 869.43π = -748.43π cm². Since the area of a region cannot be negative, the answer to the question must be 0 cm². The area of the shaded region is therefore 0 cm².
please answer all the questions, i’ll mark you as brainlinest
The statement for the congruency of the triangles and the corresponding sides are as follows:
ΔPQR ≅ ΔCBA∠Q = ∠B∠R = ∠A∠P = ∠CPQ = BCQR = ABHow to find the corresponding sides of congruent triangles?Two triangles are said to be congruent if all three corresponding sides are equal and all the three corresponding angles are equal .
In other words, triangles that have exactly the same size and shape are called congruent triangles.
Let's write a congruency statement for the triangles and identify the pair of congruent corresponding side.
Therefore,
ΔPQR ≅ ΔCBA
Hence,
∠Q = ∠B
∠R = ∠A
∠P = ∠C
PQ = BC
QR = AB
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A study was conducted of 155 species of mammals worldwide. The
scientists conducting the study found that 28 species could be found
in Europe and 73 species could be found in North America; and of
those, 28 could be found in both continents.
What is the probability of randomly selecting a species of mammal
that is neither found in Europe nor North America? Write your answer
as a fraction.
51.6is the likelihood of the given sample.
The likelihood of choosing is what?A population unit's likelihood of being included in a sample obtained using probability sampling is known as probability of selection. Interpretation, each subgroup of a population is assigned a probability of being chosen in the sample according to the sampling design.P (X) is equal to n/N, where n is the number of favorable outcomes and n is the total number of outcomes that are feasible.(N-n/N-(n-1)). The probability P is given here, along with the sample size n and the population N. The result will be P = n/N if 1-(N-n/n) is now cancelled. Additionally, it is required that a sample have a possibility of being chosen more than once: P = 1-(1-(1/N)) n.Explanation:
P (X) is equal to n/N,
155/3 = 51.6.
The likelihood of choosing at random a mammal species that is not present in either North America or Europe is 51.6.
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51.6 is the likelihood of the given sample.
The likelihood of choosing is what?A population unit's likelihood of being included in a sample obtained using probability sampling is known as probability of selection.
Interpretation, each subgroup of a population is assigned a probability of being chosen in the sample according to the sampling design.
P (X) is equal to n/N, where n is the number of favorable outcomes and n is the total number of outcomes that are feasible.
(N-n/N-(n-1)). The probability P is given here, along with the sample size n and the population N. The result will be P = n/N if 1-(N-n/n) is now cancelled. Additionally, it is required that a sample have a possibility of being chosen more than once: P = 1-(1-(1/N)) n.
P (X) is equal to n/N,
155/3 = 51.6.
The likelihood of choosing at random a mammal species that is not present in either North America or Europe is 51.6.
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What is the slope of (- 1 2?
Slope is a measure of how much a line changes in the y-direction for every unit of change in the x-direction. It is typically represented by the m in the equation y = mx + b. The slope of (-1,2) is undefined because it has only one point.
Slope is calculated by taking the difference in the y-coordinates divided by the difference in the x-coordinates of two points on a line. Since we only have one point, we cannot calculate the slope.Slope is a measure of how steep a line is, and is calculated by taking the ratio of the change in the y-coordinate to the change in the x-coordinate. Since we only have one point, we don't have any changes and therefore cannot calculate the slope.
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what is the minimum number of integers from 0 to 80 that must be selected in order to be sure of getting at least one that is odd?
We need 42 minimum number integers from 0 to 80 that must be selected in order to be sure of getting at least one that is odd.
We need Pigeonhole Principle which states,
The pigeonhole principle is one of the simplest but most useful ideas in mathematics, and can rescue us here. A basic version says that if (N+1) pigeons occupy N holes, then some hole must have at least 2 pigeons. Thus if 5 pigeons occupy 4 holes, then there must be some hole with at least 2 pigeons.
We know that there are 40 odd integers 1, 3, 5, 7, ....79 and 41 even integers 0, 2, 4, 6, .....80 from 0 to 80 .
So, at most, 41 integers picked out of them. If we pick one more integer after picking all of these then it must be odd integer according to Pigeonhole Principle. Therefore, we need to at least one more integer from 0 through 80 to be sure that there is at least one odd integer.
So, in total we need to pick at least 41 + 1 = 42 integers from 0 to 80 to be sure of getting at least one that is odd.
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Evaluate. −4+(6+8)÷(−2) Responses −11 negative 11 −5 negative 5 −2 negative 2 3
Using PEDMAS to calculate the mathematical operation -4 + (6 + 8) ÷ (-2) the value is -11
Mathematical OperationsThis is the use of mathematical operands to solve mathematical problems. This is involves the use of PEMDAS to solve mathematical expressions and equations.
In the given question,
-4 + (6 + 8) ÷ (-2)
Using PEMDAS;
The resultant operation will become
-4 + (6 + 8) ÷ (-2) = -11
The operation of -4 + (6 + 8) ÷ (-2) will give -11
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How do you write a linear model for a data table?
The linear model equation for the given data is y = 2x .
In the question ,
it is given that ,
a data table is given ,
from the table we can see that ,
when x is = 2 , the value of y = 4 ,
and when x is = 4 , the value of y = 8 .
So , we have two points as (2,4) and (4,8) .
the slope of the line is = (8-4)/(4-2)
= 4/2
= 2 .
So , the equation of the line with m = 2 and (x,y) = ( 2,4) will be
(y - 4) = 2(x - 2)
y - 4 = 2x - 4
Adding 4 in both sides of equation ,
we get ,
y = 2x
Therefore , the linear model equation of the line is y = 2x .
The given question is incomplete , the complete question is
How do you write a linear model equation for a data table given as ?
x y
2 4
4 8
6 12
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A ski resort has a lift from A to C , as shown in the figure below. Angle DAC measures . Mountain officials want to build a new ski lift from B to C. The base B will be 1040 feet from A, and the new lift will be 1875 feet long. What will be the measure of angle B ? Round your answer to the nearest tenth of a degree.
The measure of angle B is given as follows:
m < B = 19.12º.
How to obtain the measure of angle B?The measure of angle B is obtained applying the law of sines, which states that the ratio between the sine of an angle and the length of the opposite side to the angle is equals for all three angles.
The angles for the triangles are given as follows:
Angle A: 148º, as it is supplementary with it's external angle, opposite to a side length of 1950 ft.Angle C: x, opposite to a side length of 820 ft.Then the measure of angle C is calculated as follows:
sin(148º)/1950 = sin(C)/820
sin(C) = 820 x sin(148º)/1950
sin(C) = 0.22283784444
C = arcsin(0.22283784444)
C = 12.88º.
The sum of the measures of the internal angles of a triangle is of 180º, hence the measure of angle B is obtained as follows:
148 + 12.88 + x = 180
x = 180 - (148 + 12.88)
x = 19.12º.
Missing InformationThe figure is given by the image shown at the end of the answer.
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Rick used a scale factor of
1 foot = 0.625 inch to
draw a picture of his
father's truck. The actual
length of the truck was
18.4 feet. Find the length
of the truck
Answer:
Step-by-step explanation:
65kilo
the number of widgets that a manufacturing plant can produce varies jointly as the number of workers and the time that they have worked. find the constant of proportionality k to 2 decimal places if 675 workers work 3 hours and can produce 11198.25 widgets.
If 675 workers work for 3 hours and can produce 11198.25 widgets then the constant of proportionality is 5.53 .
In the question,
it is given that ,
the number of widgets production varies with the number of workers and the time that they have worked ,
let the number of workers be "w" and
let the number of time they worked be "t" ,
let the number of widgets produced be "n".
So , the equation becomes
n ∝ w × t
n = k × t × w
Substituting the values of w = 675 , t = 3 and n = 11198.25
we get ,
11198.25 = k × ×675 × 3
k = 11198.25/2025
k = 5.53
Therefore , the constant of proportionality is 5.53 .
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1. A rectangular room has an area of 400 sq. ft. The length is 7 ft less than twice the width. Find the
dimensions of the room.
Answer:
25 feet long and 16 feet wide
Step-by-step explanation:
16 x 2 = 32
32 - 7 = 25
25 x 16 = 400
pls someone help with Literal Equations
Solve for R
T=a-p/pr
Please help!!
Find the value of x.
Round to the nearest tenth.
Answer:9
Step-by-step explanation:
18 times 2 =36
1 triangle is half of a square
36 divided by 4 is 9
If PQ=3x+8 and QR=2x + 17, find the value of x.
If PQ=3x+8 and QR=2x + 17, the value of x is 31.
Define linear pair theorem.When two lines cross at one point, a linear pair of angles is created. If the angles follow the intersection of the two lines in a straight line, they are said to be linear. A linear pair's total angles are always equal to 180°. The linear pair postulate or linear pair theorem in mathematics states the same thing mathematically. The sum of the measurements of two angles that make up a linear pair is 180°.
Given
Value of lines,
PQ = 3x + 8
QR = 2x + 17
Linear pair theorem,
3x + 2x + 8 + 17 = 180
5x + 25 = 180
5x = 180 - 25
5x = 155
x = 155/5
Value
x = 31
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(Scientific Notation in the Real World MC)
The mass of a paper clip is 7.0 x 10−4 mg. If a box of paper clips has 3.18 x 104 paper clips, determine the total mass of the paper clips in the box. Write the final answer in scientific notation with the correct number of significant digits.
2.2 x 101 mg
2 x 101 mg
2.226 x 101 mg
2.23 x 100 mg
The total mass of the paper clips in the box will be C. 2.226 × 10^1
How to illustrate the scientific notation?Scientific notation is a method of displaying very large or very small numbers in a more simplified format. We know that entire numbers can be extended indefinitely, but such large numbers cannot be written on a piece of paper. Furthermore, the numbers in the millions place after the decimal required to be represented in a simpler format.
Since the mass of a paper clip is 7.0 x 10−4 mg and a box of paper clips has 3.18 x 104 paper clips, the total mass of the paper clips in the box will be:
= (7.0 × 20^-4) × 3.18 ÷ 10^4)
= 22.26
= 2.226 × 10^1
The correct option is C.
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What is the volume, in cubic inches, of a cone with a diameter of 10 inches and a height of 8 inches?.
The volume of the cone in cubic inches is 209.52 inches³.
Here we have to find the volume of the cone.
Data given:
diameter (d) = 10 inches
height(h) = 8 inches
radius (r) = 5 inches
The formula for the volume of the cone:
Volume = 1/3 πr²h
Now putting the values in the equation we have:
V = 1/3 π (5)² × 8
= 209.52 inches³
Therefore the volume is 209.52 inches³.
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ted runs 2/3 as fast as frank. in 2 hours frank runs 8 miles farther than ted. how fast does each run?
The speed of Ted is 08 mph and the speed of Frank is 12 mph.
Given:
Ted runs 2/3 as fast as frank. In 2 hours frank runs 8 miles farther than ted.
Ted Data:
Distance = d;
Rate = (2/3)x;
Time = 2 hours
Candid Data:
Distance = d+8;
Rate = x;
Time = 2 hours
Formula: Distance = Speed*Time
Therefore,
Flank distance = ted distance + 8
2x = (4/3)x + 8
6x = 4x + 24
2x = 24
x = 12 mph
The speed of Flank is 12 mph.
Therefore, the speed of Ted is:
(2/3)x = 8 mph
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The function g(x) = -2² +8 is graphed on the coordinate plane.
What is g(2) ?
Helppppppppppppppppppp
Answer:
Gas - state of matter with no definite matter or shape.Chemical equation - an equation that represents atoms and molecules rearranging in a chemical reaction.Matter - anything that has mass and takes up space.Liquid - state of matter with a definite volume, but not a definite shape.Solid - state of matter that has a definite shape & volume.Law of conservation of matter - scientific law that states no matter can be created, nor destroyed.Atom - A tiny particle that makes up matter and is made up of 3 smaller particles: protons, neurons, and electrons.I hoped this helped! Please give me brainliest :D
PLEASE HELP!! I don’t understand this
Is 1 the first square number?
Yes, 1 is the first square number.
What is a square number?
A square number, sometimes known as a perfect square, is an integer that is an integer squared; in other words, it is the result of multiplying an integer by itself. Because it equals 3² and can be represented as 3 *3, the number 9 is an example of a square number.
Given that 1 x 1 equals 1, the initial square number is 1.
Due to the fact that 3 x 3 = 9, the third square number is 9, and so forth. Following are the first fifteen square numbers: 1, 4, 9, 16, 25, 36, 49, 64, 81, 100, 121, 144, 169, 196, and 225.
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3x - 2 > 4 - 3x
PLEASE HELP ME. I need to get my grade up
The solution to the given linear inequality is x > 1
Solving Linear inequalitiesFrom the question, we are to solve the given linear inequality.
The given linear inequality is
3x - 2 > 4 - 3x
Solving the inequality
3x - 2 > 4 - 3x
Add 3x to both sides
3x +3x - 2 > 4 - 3x + 3x
6x - 2 > 4
Add 2 to both sides
6x - 2 + 2 > 4 + 2
6x > 6
Divide both sides by 6
6x/6 > 6/6
x > 1
Hence, the solution is x > 1
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1. Your company needs to lease office space in two buildings. The annual cost is $24.75 per square foot in the first building that is near downtown and $17 per square foot in the second building that is located just outside of town. The company has $95,000 budgeted for rent. Write an equation that models the possible amounts of space rented in the buildings.
a) Identify your variables
b) Write your equation in Standard form
c) Solve your equation
d) Write your answer in sentence form.
2. How many square feet of space can be rented in the first building if 2650 square feet are rented in the second?
A bag contains the same number of each of four different colors of marbles.
A marble is drawn, its color is recorded, and then the marble is placed back
in the bag. This process is repeated until 40 marbles have been drawn. The
table shows the results. For which marble is the experimental probability of
drawing the marble the same as the theoretical probability?
Yellow=12
Red=10
Blue=7
Black=11
Answer: Red.
Step-by-step explanation:
There are 10 marbles of each colour as described here: 'A bag contains the same number of each of four different colors of marbles.' The theoretical probability of drawing any marble of a select colour is 1/4. The red marble was drawn 10 times, making it fit this 1/4 theoretical probability.
A set of statistics exam scores are normally distributed with a mean of 76. 5576. 5576, point, 55 points and a standard deviation of 555 points. What proportion of exam scores are between 797979 and 86. 586. 0586, point, 05 points?.
A set of statistics exam scores are normally distributed with a mean of 76. 5576. 5576, point, 55 points and a standard deviation of 555 points. 28.34% proportion of exam scores are between 797979 and 86. 586. 0586..
Define mean and standard deviation.A low standard deviation implies that the data are grouped around the mean, whereas a large standard deviation shows that the data are more dispersed. In contrast, a high or low standard deviation indicates that the data points are, respectively, above or below the mean. A standard deviation that is close to zero implies that the data points are close to the mean.
Given,
Mean = 76.55
Standard deviation = 5
To calculate this, we first need to get the Z score mathematically
Z = X - mean/standard deviation
For the 79,
Z = 79 - 76.55/5
Z = 0.49
For the 86.05
Z = X - mean/standard deviation
Z = 86.05 - 76.55/5
Z = 1.9
So, we have
P(0.49 < Z < 1.9)
P( Z < 1.9) - P( Z < 0.49)
Using the table of standard score probability
P(Z < 1.9) = 0.9713
P( Z < 0.49) = 0.6879
P( Z < 1.9) - P( Z < 0.49)
0.9713 - 0.6879
0.2834
In percentage,
0.2834 × 100%
28.34%
A set of statistics exam scores are normally distributed with a mean of 76. 5576. 5576, point, 55 points and a standard deviation of 555 points. 28.34% proportion of exam scores are between 797979 and 86. 586. 0586..
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5000 people attended a football game. If 25% of the people who attended were teenagers, how many teenagers attended the game?.
The football game was attended by 1250 teenagers out of 5000 people who attended the game.
The number of teenagers who calculated the game can be calculated by finding the percentage of people who were teenagers. The word formula for the calculation will be -
Number of teenagers in the game = 5000 × 25%
Writing the percentage as fraction
Number of teenagers in the game = 5000 × 25/100
Cancelling zero as common in numerator and denominator
Number of teenagers in the game = 50 × 25
Performing multiplication on Right Hand Side of the equation
Number of teenagers in the game = 1250
Hence, there are 1250 teenagers.
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A prestigious program accepts 2 out of every 9 applicants per yer. If the program accepted 360 applicants, how many applicants were NOT accepted?
A.1260
B.1620
C.2520
D.3240
E.3600