Answer:
circumference = 2πr
\(= 2*\frac{22}{7}*21\\\\\\= \frac{44}{7}*21\\\\= \frac{924}{7}\\\\= 132\)
0.706 =
in thousandths
Answer:
706/1000
Step-by-step explanation:
1. Remove decimal point.
2. Use 1000 as denominator.
3. Use 706 as the numerator.
Cross out the numbers below that are NOT equivalent to 500.0.
500.00 5 × 10 5 × 102 50.05 500.500
Answer:
500.00 equal
5 × 10 not equal
5 × 10² equal
50.05 not equal
500.500 not equal
Cupid's arrow travels 45 meters in 5
seconds. What is the speed of the
flying arrow?
Answer:9
Step-by-step explanation:
45/5 =9
s=d/t
The speed of the flying arrow will be 9 meters/second.
What is the relation between speed and distance?Speed describes how accelerated something or somebody is moving. If you know the distance traveled and the time it took, we can calculate the average speed of an object.
The speed formula is speed = distance/time.
We are given that Cupid's arrow travels 45 meters in 5 seconds.
Therefore, distance = 45 meters
Time= 5 seconds.
Thus, speed = distance/time
Speed = 45/5
Speed =9
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Can you have a triangle with 2cm 3cm 5cm Class 7?
No , we cannot have a triangle with 2cm , 3cm and 5cm , because the sum of two sides is not greater than the other sides .
What is a Triangle ?
A triangle can be defined as the closed figure , that is made up of three line segments .
The Condition for any three sides to form a triangle : the sum of any two sides of triangle should be greater than the third side .
The sides of triangle are given to be : 2cm , 3cm and 5cm ;
on adding the two sides ,
we get ;
⇒ 2 + 3 = 5 > 5 ; False
⇒ 3 + 5 = 8 > 2 ; True
⇒ 2 + 5 = 7 > 3 ; True
All the conditions are not met ,
Therefore , the given sides cannot form a triangle .
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What is the answer Which of the following equations have infinitely many solutions?
Choose all answers that apply:
Choose all answers that apply:
(Choice A)
A
-6x+35=-6x-35−6x+35=−6x−35minus, 6, x, plus, 35, equals, minus, 6, x, minus, 35
(Choice B)
B
6x+35=-6x-356x+35=−6x−356, x, plus, 35, equals, minus, 6, x, minus, 35
(Choice C)
C
-6x+35=-6x+35−6x+35=−6x+35minus, 6, x, plus, 35, equals, minus, 6, x, plus, 35
(Choice D)
D
6x+35=-6x+356x+35=−6x+35
I am still confused
-6x+35 = -6x+35 has the same thing on each side: , so this has infinite solutions. Option c is correct.
An equation will have infinite solutions if both sides of the equal sign are the exact same thing, for instance . (You can test this with any value of x and find that they all work!)
So to find the equations that have infinite solutions, we need to see which have the same exact sides.
(Choice A)
-6x+35 = -6x-35 have the different thing on each side: , so this has no solution.
(Choice B)
6x+35 = -6x-35 does not have the same thing on each side, so it doesn’t have infinite solutions (it has 1).
(Choice C)
-6x+35 = -6x+35 has the same thing on each side: , so this has infinite solutions.
(Choice D)
6x+35=-6x+35 And finally, has the different thing on each side: , so it has one solution.
Hence , -6x+35 = -6x+35 has the same thing on each side: , so this has infinite solutions.
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what inferences about the relation between income and type of oven usage in population may be drawn from the data above?
No inferences can be made without performing a hypothesis test
A hypothesis test is a statistical test used to determine whether a specific hypothesis about a population parameter is supported by the data. In this test, a null hypothesis (H0) is stated, which is usually the assumption that the population parameter is equal to a specific value or falls within a certain range. An alternative hypothesis (Ha) is also stated, which is usually the opposite of the null hypothesis.
The next step is to collect data and use statistical techniques to calculate a test statistic, which measures how far the sample data deviates from the null hypothesis. The test statistic is compared to a critical value in a probability distribution, such as a t-distribution or z-distribution, which is determined based on the level of significance (alpha) and the degrees of freedom
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Full Question: what inferences about the relation between income and type of oven usage in population may be drawn from the data above?
Table attached
A local television company determines that the revenue it gets from running ads doubles each year. The function graphed models the revenue from advertising after x years.
Answer:
African Americans contributed to the war by
combat service elements alongside their white counterparts and were involved in all major combat operations, including the advance of United Nations Forces to the Chinese border. Two African-American Army sergeants, Cornelius H. Charlton and William Thompson, earned the Medal of HonoR.
BY. BY. BY. BY. BY. BY.
Step-by-step explanation:
The probability that a house in an urban area will be burglarized is 15%. If 30 houses are randomly selected, what is the mean of the number of houses burglarized?
The mean of the number of houses burglarized in this sample is 4.5 based on probability.
The probability of a house in an urban area being burglarized is 15%. This means that out of every 100 houses, 15 will be burglarized.
If 30 houses are randomly selected, we can use the binomial distribution to find the mean number of houses burglarized. The formula for the mean of a binomial distribution is:
Mean = n * p
where n is the number of trials (in this case, 30) and p is the probability of success (in this case, 0.15).
Substituting these values, we get:
Mean = 30 * 0.15
Mean = 4.5
Therefore, the mean number of houses burglarized out of 30 randomly selected houses is 4.5. Note that this is an expected value and may not represent the actual number of houses burglarized in any particular sample of 30 houses.
To find the mean of the number of houses burglarized, we can use the formula:
Mean = (Probability of success) x (Number of trials)
In this case:
- Probability of success (a house being burglarized) is 15%, or 0.15 as a decimal.
- Number of trials (randomly selected houses) is 30.
Using the formula, we get:
Mean = (0.15) x (30) = 4.5
So, the mean of the number of houses burglarized in this sample is 4.5.
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Plzzz help me it’s due tonight!!!!!
Answer:
UV=5, VW=5\(\sqrt{3}\), and m∠U=60
Step-by-step explanation:
sin 30=UV/10=>0.5=UV/10=>UV=5
VW=√(10²-5²)=√75=5√3
m∠U=180-90-30=60
uhh can some one please help me :))?
Answer:the third one
Step-by-step explanation:
Answer: 3/4 hour
Step-by-step explanation: You can add 1/4 at a time to get to the 3 2/4.
3
9
100
4
The diagram shows a dilation of segment AB. Which
statements are true about the dilation? Select all that
apply
The dilation is an enlargement
The dilation is a reduction
Point O is the center of dilation.
The scale factor is 3.
The scale factor is 9.
AI
1
1
12
AY
Answers:
The dilation is an enlargement.
Point O is the center of dilation.
The scale factor is 3.
The true statements about the dilation of segment AB are:
The dilation is an enlargement.
Point O is the center of dilation.
The scale factor is 3.
The scale factor is 9.
Dilation is a geometric transformation that alters the size of a figure while maintaining its shape. It is accomplished by either enlarging or reducing the figure with respect to a fixed point called the center of dilation. The scale factor determines the ratio by which the figure is resized. In the given diagram depicting the dilation of segment AB, let's analyze the statements to understand the properties of the dilation.
The dilation is an enlargement: An enlargement occurs when the scale factor is greater than 1, meaning the figure is proportionally expanded. In the diagram, if the scale factor is greater than 1, then the dilation is indeed an enlargement.
The dilation is a reduction: A reduction happens when the scale factor is between 0 and 1, implying that the figure is proportionally reduced. If the scale factor in the diagram falls within this range, then the dilation is also a reduction.
Point O is the center of dilation: The center of dilation is the fixed point about which the figure is resized. In the diagram, if point O is identified as the fixed point with respect to which segment AB is dilated, then this statement is true.
The scale factor is 3: If the scale factor mentioned in the diagram is 3, it indicates that the figure is enlarged by a factor of 3, making this statement true.
The scale factor is 9: If the scale factor is 9, then the figure is enlarged by a factor of 9, and this statement is also true.
Hence the correct option is (a), (c), (d), and (e).
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Write as an inequality. Do not solve.
Yellow Cab charges a flat rate of $3.00 plus $0.50 per mile. Raven
has $20.00 to spend on a cab ride. Write an inequality that expresses how
many miles Raven can travel under her limit.
The product of 8 and y is less than 21.
Raven can travel 5.71 miles or less under her limit.
What is inequality?Inequality is defined as the relation which makes a non-equal comparison between two given functions. If the equation or inequality contains variable terms, then there might be some values of those variables for which that equation or inequality might be true. Such values are called solution to that equation or inequality.
Let x b the number of miles Raven travels, we can write an expression relating the amount he spends. So there:
3.00 + 0.50= 3.50
Consider that total cost per mile be less than equal to the amount the Raven can spend:
3.50x ≤ 20
We can determine x;
x ≤ 5.71
Therefore, Raven can travel 5.71 or less under her limit.
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Which geometric term would you use to describe the crossing sign shown below?
An X- shaped rail road crossing sign is shown.
A.
perpendicular lines
B.
parallel lines
C.
intersecting lines
D.
points
The geometric term that can be used to describe the crossing sign shown is intersecting lines.
What are intersecting lines geometry?In geometry, intersecting lines are two lines that cross one another at a location known as the point of intersection. It is possible to use the point of intersection to solve issues concerning angles, segments, and geometric shapes because it is the sole point that both lines share.
Two pairs of opposite angles that are equal to one another are formed when two lines connect, giving rise to four angles.
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ILL GIVE BRAINLIEST
A gift store owner used 9 rolls of wrapping paper to wrap his customers’ gifts last week. Each roll was 66 1/2 in. long. How many gifts did he wrap if a 9 1/2 in. long piece of wrapping paper was used to wrap each gift?
Answer:
Answer is 7
Step-by-step explanation:
If the roll was 66 1/2 rolls long, we have to calculate and know how many pieces of wrapping paper for the roll so if each wrapping paper is 9 1/2 then you would have to divide 66 1/2 by 9 1/2 so you would need 7 wrapping papers.
PLS HELP! I WILL GIVE BRAINLIEST TO BEST ANSWER! Just number 2. Pls exlpain your work. Doesn't have to be like an essay, just enough so I know that you know it's the right answer. TYSM!
PS: You may have to rotate the picture to read it.
Answer:
D
Step-by-step explanation:
If you solve you will find out that its D
22.76 = 10.28 + 4.16x
what is 0.4 repeting as afraction
Answer:
2/5
Step-by-step explanation:
Answer:
4/9
Step-by-step explanation:
When you go to do a repeating decimal, put whatever repeats over 9. For example lets say we want .49494949 repeating it would be 49/99
however in this case we want 4 to repeat so it would be 4/9.
Leo Gandolfi takes out a short-term loan of $1,800 at 12 percent
for 6 months. The monthly payment is $310.50. The balance of the loan after 4 payments is
$612.34. How much does he save by paying off the loan when the next payment is due?
A $6.12
R2 $18.00
C
2,353
SCIO
In a linear equation, 9.14 does he save by paying off the loan when the next payment is due .
What in mathematics is a linear equation?
An algebraic equation with simply a constant and a first-order (linear) term, such as y=mx+b, where m is the slope and b is the y-intercept, is known as a linear equation.
Sometimes, the aforementioned is referred to as a "linear equation of two variables," where x and y are the variables.
Jan 293 18 311 1,507 16.25%
Feb 296 15 311 1,212 32.67%
Mar 298 12 311 913 49.25%
Apr 301 9 311 612 66.00%
May 304 6 311 308 82.92%
Jun 308 3 311 0 100.00%
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A toy manufacturer needs a piece of plastic in the shape of a right triangle with one leg 4 cm longer than the other and the hypotenuse 8 cm longer than the shorterleg. What is the perimeter of the triangle?The perimeter is ___(Simplify your answer.)
It is given that the longer leg is 4 cm longer than the shorter leg.
It is also given that the hypotenuse is 8 cm longer than the shorter leg.
ExplanationLet the shorter leg be x.
The longer leg be y.
Then the relation formed is
\(y=x+4\)It is also given that the hypotenuse is 8 cm longer than the shorter leg.
Let the hypotenuse is z.
\(z=8+x\)Then the perimeter of the right triangle is the sum of all the sides.
\(x+y+z\)But to find the value of x , use the Pythagoras theorem.
\(z^2=y^2+x^2\)Substitute the values.
\(\begin{gathered} (8+x)^2=(4+x)^2+x^2 \\ 64+x^2+16x=16+x^2+8x+x^2 \\ 64+16x=16+8x+x^2 \\ 64-16+16x-8x-x^2=0 \\ -x^2+8x+48=0 \end{gathered}\)Solve the quadratic equation to find the value of x.
\(\begin{gathered} (x-12)(x+4)=0 \\ x=12,-4 \end{gathered}\)As x cannot be negative , then the value of x is 12.
The length of shorter leg is 12.
The length of longer leg is 12+4=16.
The hypotenuse is 12+8=20.
Now , the perimeter of right triangle is
\(\begin{gathered} P=12+16+20 \\ P=48cm \end{gathered}\)AnswerThe perimeter of the triangle is 48 cm.
According to the video above, the geometric object called a(n) ___ has the characteristics that it has one endpoint and extends in away from that endpoint without end.
They are used in navigation, astronomy, and surveying. Rays are also used in computer graphics, physics, and optics. In addition, rays are used in the study of optics to describe the behavior of light as it travels through different mediums.
According to the video above, the geometric object called a ray has the characteristics that it has one endpoint and extends in away from that endpoint without end.A ray is a line that starts at a single point and extends in one direction to infinity. Rays are commonly used in geometry to explain lines and line segments. A ray has one endpoint, called the endpoint of the ray, from which it starts. The other end of the ray continues in the direction in which it is pointed without any limit. A ray is named by using its endpoint and another point on the ray, with the endpoint first. For example, if ray A starts at point P and passes through point Q, we write the name of the ray as ray PAQ or ray QAP. Rays can be part of line segments and other geometric objects. They can also be used to explain angles and the direction of a light source. Rays are commonly used in mathematics, science, and engineering.
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A room has 9 tables with 6 chairs each and 7 tables
with 8 chairs each. How many chairs are in the room altogether? Pls use parentheses
Answer:
110
Step-by-step explanation:
(9x6) + (7x8) = 110
There are 110 chairs in total, hope this helps!
Given tanTheta= -5/12 and theta is in quadrant iv.
a. find sin theta/2
b. find tan theta/2
c. what quadrant does theta/2 lie?
sin(theta/2) = 1/√(1 + cos(theta))
b. tan(theta/2) = sin(theta)/(1 + cos(theta))
c. theta/2 lies in quadrant II.
To find sin(theta/2), we can use the half-angle identity for sine, which states that sin(theta/2) = √((1 - cos(theta))/2). Since we are given tan(theta) = -5/12, we can find cos(theta) by using the identity tan(theta) = sin(theta)/cos(theta). Solving for cos(theta), we get cos(theta) = 12/13. Plugging this value into the half-angle identity, we find sin(theta/2) = √((1 - 12/13)/2) = √(1/13) = 1/√13.
The half-angle identity for tangent states that tan(theta/2) = sin(theta)/(1 + cos(theta)). Using the values we found earlier, sin(theta) = -5 and cos(theta) = 12/13, we can substitute them into the formula to get tan(theta/2) = (-5)/(1 + 12/13) = -5/(25/13) = -65/25 = -13/5.
To determine the quadrant in which theta/2 lies, we need to analyze the signs of sin(theta) and cos(theta). Since theta is in quadrant IV and tan(theta) is negative, we know that sin(theta) is negative and cos(theta) is positive. When we evaluate sin(theta/2) and tan(theta/2), we find that both of them are negative. Since sin(theta/2) and tan(theta/2) are negative, theta/2 must lie in quadrant II, where both sine and tangent are negative.
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what is 4
7
10
− 9
=
The value of -4(7/10) - 9(7/15) is -85 / 6.
What is a mixed fraction?A fraction represented with its quotient and remainder is a mixed fraction.
For example:
3 4/5 is a mixed fraction, where 3 is the quotient, and 4 is the remainder.
We have,
-4(7/10) - 9(7/15)
Convert each term into a proper fraction.
4 7/10 = (40+7) / 10 = 47 / 10
9 7/15 = (135 + 7) / 15 = 142 / 15
Now,
= -47 / 10 - 142 / 15
The LCM of 10 and 15 is 30
= [3 x (-47) - (2 x 142)] / 30
= (-141 - 284) / 30
= -425 / 30
We can divide by a common factor of 5
= - 85 / 6
Thus the value of -4(7/10) - 9(7/15) is -85 / 6.
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The complete question is
Evaluate -4(7/10) - 9(7/15)
1). Solve this 11-11x11+11=?
After solving the given numbers with (PEMDAS) 11 - 11 x 11 + 11 = we get the answer of -88.
To solve 11-11x11+11, we need to use the order of operations, which is a set of rules that dictate the order in which mathematical operations should be performed. The order of operations is:
Parentheses
Exponents
Multiplication and Division (from left to right)
Addition and Subtraction (from left to right)
Using this order of operations, we can simplify the expression as follows:
11 - 11 x 11 + 11
= 11 - 121 + 11 (since multiplication should be done before addition and subtraction)
= -99 + 11
= -88
Therefore, the value of 11-11x11+11 is -88.
In general, when simplifying expressions, it is important to follow the order of operations to ensure that you get the correct answer. Additionally, it is always a good idea to check your work by plugging the answer back into the original expression and making sure that it is correct.
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In the sentence below, which word or phrase refers to a mathematical operation?
While driving on the freeway, Jennifer was operating her vehicle at 10 miles per hour more than Amy.
A. more than
B. miles
C. 10
D. operating
Answer:
a
Step-by-step explanation:
for she was going faster then amy
Brooklyn line‘s upright retanglar prisms like the one shown. She aligns each prism behind the previous prism to make a larger prism. The larger prism has a surface area of 1288 and squared. How many prisms does Brooklyn align? Show your work
Answer:
if there are 12 cubes, there must be 3 rows of 4 since its a prism. 1288 square root is 35. something
Step-by-step explanation:
solve for x using the correct order of operations
Answer:
Step-by-step explanation:
Use PEMDAS.
P=Parenthesis
E=Exponents
M=Multiplaction
D=Division
A=Addition
S=Subtraction.
Multiplication and Division can be done interchangeably, Work left to right.
Same with addiion and subtraction.
Add: 25 + |-14| + 3
Answer:
42
Step-by-step explanation:
25+14+3= 42
Please help and show work, will give lots of points!
Lourdes is reading a biography for her history class. She reads 30 pages each day. After 9 days, Lourdes has read 3/5 of the biography. Write a linear equation to represent the number of pages Lourdes still has to read after x days.
y = []x + []
(Use above format to write the equation.)
What does the y-intercept of this linear equation represent?
A. Pages already read
B. Pages in book
C. Pages read each day
D. Days to finish
Answer:
The linear equation is y = 450 - 30 x, where y is the number of pages
Lourdes has left to read after x days
Step-by-step explanation:
Each day, Lourdes reads 30 pages of a 450-page book
- We need to write a linear equation to represent the number of pages
Lourdes has left to read after x days
∵ Lourdes reads 30 pages each day
∵ Lourdes will read for x days
∴ The number of pages Lourdes will read in x day = 30 x
- The left pages will be the difference between the total pages of the
book and the pages Lourdes read
∵ The book has 450 pages
∵ Loured will read 30 x in x days
∴ The number of pages left = 450 - 30 x
- Assume that y represents the number of pages Lourdes has left
to read after x days
∴ y = 450 - 30 x
The linear equation is y = 450 - 30 x, where y is the number of
pages Lourdes has left to read after x days
Which is the smallest fraction represented?
A: 8/9
B: 5/9
C: 2/9
D: 1/9
Answer:
d
Step-by-step explanation:
when fractions have the same whole which here is 9 you can just look at the first letters
so one is the smallest
Answer:
1/9 or D
Step-by-step explanation:
8/9 = About 0.89 = 89%
5/9 = About 0.56 = 56%
2/9 = About 0.22 = 22%
1/9 = About 0.11 = 11%
The reason it is D is that it has a low fraction, decimal number, and percent.