Answer:
find search bar
Step-by-step explanation:
see answer
One endpoint of a line segment is (10,-1). The point (7,-2) i s one-third of the way from that endpoint to the other endpoint. Find the other endpoint
The coordinates of the other endpoint of the Line segment is (-2,-5).
If M(x.y) divides the line formed by two points A(a,b) and B(c,d) into a ratio m:n. Then the coordinates of the point M can be found out by using the formula,
x = (mc + na)/(m+n)
y = (md + nb)/(m+n)
This above mentioned formula is known as The section Formula.
The one of the End point of the line is (10,-1) and the point (7,-2) is dividing the line in the ratio of 1:3.
Let us assume the other end point to be (a,b).
Now, applying Section Formula,
7 = [(1)(a)+(3)(10)]/4 and
-2 = [(1)(b)+(3)(-1)]/4
Further solving,
a = -2 and
b = -5
So, the coordinates of the endpoint is (-2,-5).
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Help with these 3 questions!!
Brainliest/30pts
Answer: 1.c 2.a 3.c
Step-by-step explanation:
Answer:
first picture
1 and 2 are congruent because they are a pair of corresponding angles
second picture
A = B
This is because they are alternate exterior angles and they equal the same thing
third picture
angle 5
it is also an alternate interior angle
expand and simplify 7(x-2)-2(x-3)
Answer:
5x-8
Step-by-step explanation:
7x-14-2x+6
-14+6=-8
7x-2x=5x
how to simplify -7 ( 3x - 7y) ?
[6-34] the manufacturer of a new fiberglass tire claims that its average life will be at least 40,000 miles. to verify this claim, sample of 15 tires are tested. sample mean was 41.1 (in 1000 miles), and sample standard deviation was 2.50. assuming the measurements were random sample from a normal distribution, calculate 95% one-sided confidence interval for true mean tire life. choose lower-bound or upper-bound, whichever is appropriate. (round to 2 decimals.)
The assumption that the sample means follow a roughly normal distribution is used to calculate a confidence interval for a population mean with a known standard deviation.
A confidence interval gives a range of values that will probably include the actual mean. For example, let's say that our sample has a mean of x=10 and we have generated the 90% confidence interval (5, 15), with EBM = 5. For instance, we might not be able to speak to everyone in Colorado if we wanted to find out the typical age of Colorado residents who enjoy bananas. However, we could conduct in-depth interviews with a representative sample and make an educated guess or calculation to provide us with a range of ages.
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A sports shop had a bike for sale for NOK 7,000. The price of the bike was reduced twice. First with 15%. Then with 30%.
a) How much did the illness cost now?
b) By how many percent has the price been reduced in total?
between 9 am and 6:36 am, the water in a swimming pool decreased by 8/25 in. assuming that the water level decreased at a constant rate, how much did the water level drop each hour
Answer: 2/15 in/hour
Step-by-step explanation:
[tex]\displaystyle\\1)\ 6:36=\\\\6\frac{36}{60}=\\\\6\frac{3(12)}{5(12)}=\\\\6\frac{3}{5}=\\\\\frac{6*5+3}{5}=\\\\\frac{30+3}{5}=\\\\\frac{33}{5} \ hours[/tex]
[tex]\displaystyle\\2)\ 9-\frac{33}{5} =\\\\\frac{9(5)-33}{5}=\\\\\frac{45-33}{5} =\\\\\frac{12}{5}\ hours[/tex]
[tex]\displaystyle\\3)\ \frac{8}{25}:\frac{12}{5} =\\\\\frac{8}{25}*\frac{5}{12} =\\\\\frac{8(5)}{25(12)} =\\\\\frac{2*4*5}{5*5*4*3} =\\\\\frac{2}{5*3} =\\\\\frac{2}{15}\ in/hour[/tex]
Will the product of negative 1/3 ⁵⁰ B positive or negative? How do you know?
the product of negative 1/3 ⁵⁰
The expression is :
[tex](-\frac{1}{3})^{50}[/tex]Since the product of negative to negative is positive
and negative x negative x negative = negative
Thus, if we multiply the negative upto odd number times the resultant will be negative
if we multiply the negative upto even number times the resultant will be positive
In the given expression we multiply (-1/3) upto 50 times
50 is the even number so the the resultant value will be positive
Answer : Positive
becasue if we multiply the negative upto odd number times the resultant will be negative & if we multiply the negative upto even number times the resultant will be positive
The width of a desk is 25 inches, or 63.5 centimeters. If a measurement in inches varies directly with a measurement in centimeters, what is the length, in centimeters, of a notebook that is 11 inches long? Round your answer to the nearest hundredth, if necessary.
2.54 centimeters
4.33 centimeters
27.94 centimeters
47.63 centimeters
The notebook's length in centimeters is 27.94 cm.
Since we are provided that
The desk's width is 25 inches.
Convert into cm.
There is a stated measurement of 25 inches = 63.5 cm.
As previously stated, a measurement in inches differs directly from a measurement in centimeters.
As a result, we have said that
If the notebook's length is 11 inches
Let 'x' be the length of the notebook in cm.
As a result of the question,
[tex]\frac{25}{63.5} = \frac{11}{x}[/tex]
[tex]x=\frac{698.5}{25}[/tex]
x = 27.94 cm
Hence the length of note book is 27.84 cm.
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Express in decimal notation 4.93 x 10^(3)
The decimal notation of 4.93 x 10³ will be 4930.00.
What is Multiplication?
To multiply means to add a number to itself a particular number of times. Multiplication can be viewed as a process of repeated addition.
Given that;
The expression is;
4.93 x 10³
Now, Solve for decimal notation as;
4.93 x 10³ = 4.93 x 10 x 10 x 10
= 49.3 x 10 x 10
= 493 x 10
= 4930.00
Thus, The decimal notation of 4.93 x 10³ will be 4930.00.
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3) (p3) consider the proof for the following theorem: there is no smallest integer.assume that there exists a smallest integer, r. since r is an integer, it can be negative. since there is no smallest negative integer and r can be negative, this contradicts the assumption that there is no smallest integer. what is the mistake in this proof?
The mistake is that, what we have to prove is taken as a known fact.
A theorem is a statement that can be proved or has already been proved true by a logical argument.
"there is no smallest negative integer" is taken as a fact
but it is the part of the theorem that we have to prove,
Therefore, we can conclude that the mistake in the given proof is what we have to prove is taken as a known fact.
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46 over48 Are the ratios and proportional? 69 over 84 (1 point) A Yes, because they both reduce to the equivalent fraction 1 3 B Yes, because the cross products 46 84 and 48.69 are equal. C No, because one has a quotient of 06 and the other has a quotient of 0.571428- 2 D No, because one ratio reduces to 3 3 7 2 and the other reduces to
The ratios aren't proportional as D. No, because one ratio reduces to different values.
What is a ratio?A ratio is simply used to show the comparison between the numbers that are illustrated in a data.
In this case, the fractions that are given include 46/48 and 69/84.
To have an equivalent ratio, it's important to have the numerator and the denominator divided by the same number.
In this case, this isn't possible with 46/48 and 69/84.
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You have saved some money to purchase five different songs to download to your portable music device. Solve an inequality that represents the prices you can pay for each song if you have saved no more than 20 dollars.
If you have saved some money to purchase five different songs to download to your portable music device. The inequality that represents the prices you can pay for each song if you have saved no more than 20 dollars is : 5 x ≤ 20.
InequalityGiven:
Numbers of different songs to download = 5
Cost = $20
Hence,
The inequality is ; 5 x ≤ 20
Now let solve the inequality
5 x ≤ 20
x = 20 /5
x = 4
So,
= x ≤ 4
Therefore the inequality is 5 x ≤ 20.
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Jaime, ralph, marvin and victor decided to put up a small business. their initial investment is in the ratio of 8:3:12:2 respectively and marvin's had ivested php 240,000. interms of profit they have decided to split them base on the ratio of their investment. in the first three months of their company made a total of php 150,000 profit. based on marvin's initial deposit. how much did victor invested?
Answer:
php 40,000
Step-by-step explanation:
In the ratio, Marvin corresponds to 12 and Victor to 2.
Marvin invested php 240,000.
His part of the ratio is 12.
240,000/12 = 20,000
Victor's part in the ratio is 2.
Victor's investment amount is 2 × php 20,000 = php 40,000
a bus comes by every 14 minutes. the times from when a person arives at the busstop until the bus arrives follows a uniform distribution from 0 to 14 minutes. a person arrives at the bus stop at a randomly selected time. round to 4 decimal places where possible.
a) The mean of this distribution is 7 min
b) The standard deviation is 4.0414 min
a) The mean is the midpoint between the ends or 7 min
variance is (b-a)^2/12 or 196/12 or 16.3333 min
b) standard deviation is sqrt(V)= 4.0414 min
the complete question is
a bus comes by every 14 minutes. the times from when a person arives at the bus stop until the bus arrives follows a uniform distribution from 0 to 14 minutes. a person arrives at the bus stop at a randomly selected time. round to 4 decimal places where possible.
a) The mean of this distribution is
b) The standard deviation is
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Allison’s family spent $38.78 on school supplies. If Allison paid 1/4 of the bill, how much did she pay?
Answer:$9.695
Step-by-step explanation:
1/4 is 0.25 so this means Allison is paying 25% of the bill. Then all you have to do is times 38.78 with 0.25 and you get $9.695 or $9.70.
Answer:
$9.70
Step-by-step explanation:
You can do this question several way on a calculator:
1/4 × 38.78
OR
.25 × 38.78
OR (I like this one)
38.78 ÷ 4
All these calculations will give you the result 9.695
Since this is a real-world money problem, we would round this number to 9.70.
Allison paid $9.70.
The number of days, d, taken to harvest the corn in a field is inversely proportional to the number
of men, m, who help.
1. Explain what happens to the number of days taken to harvest the corn if the number of men is
doubled.
5/7 times 44.4
Two answers
Answer:
2x44/7
Step-by-step explanation:
Answer:
Step-by-step explanation:
well it very confusing to some but,...31.7142857143 and i don't know the other one :) ;).
17<9+X
O A. x> 8
OB. x > 26
O C. x < 26
O O
D. x < 8
Answer:
A
Step-by-step explanation:
17 < 9 + x ( subtract 9 from both sides )
8 < x , then
x > 8
use the 68-95-99.7 rule to find the proportion of runners whose body weight is between 48.7 and 67.9 kg.
Based on the complete question, the Normal Distribution Graph will resemble the one in the figure attached.
Also, note that using the 68-95-99.7 rule, the proportion of runners between 48.7 and 67.9 kg is 0.8385.
What is the 68-95-99.7 rule?
The 68-95-99.7 rule, also known as the empirical rule, is a statistician's shorthand for remembering the percentage of values in a normal distribution that fits within an interval estimate: 68%, 95%, and 99.7% of the variables lie within one, two, and three standard deviations of the mean, correspondingly.
To compute the proportion of runners whose body weight is between 48.7 and 67.9 kg with the help of the 68-95-99.7 rule:
We know given that:
The mean = 63.1 and
the standard deviation (SD) = 4.8.
Where the weight is 67.9kg, we know that the distance between this and the mean is 4.8, that is;
67.9 - mean
= 67.9 - 63.1
= 4.8 [1*SD]
In the same way,
48.7 corresponds to 48.7-63.1 = -14.4 [ -3*SD]
Hence, based on the rule,
the probability of the weight occurring between -1*SD and 1*SD = 68%; and the probability of the weight occurring between -3*SD and 3*SD = 99.7%.Therefore, the probability of the weight occurring between -3*SD and 1*SD = (99.7+68)/2= 83.85%
= 0.8385.
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Full Question:
A study of elite distance runners found a mean body weight of 63.1 Kilograms (kg), with a standard deviation of 4.8kg.
Assuming the distribution of weights is approximately normal, make a sketch of the weight distribution (like the one below) with a horizontal axis marked in kilograms.Use the 68-95-99.7 rule to find the proportion of runners whose body weight is between 48.7 and 67.9 kgSolve Equation
Oct 12, 11:23:17 PM
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A group of friends wants to go to the amusement park. They have $134.50 to
spend on parking and admission. Parking is $14.50, and tickets cost $24 per
person, including tax. How many people can go to the amusement park?
Answer: You can only bring 5 people maximum.
Step-by-step explanation:
1) Set up the equation
(>= greater than or equal to)
134.50 >= 24x +14.5
We set up the equation here with 24x as x is the amount of people. 14.5 is the starting value as it never changes. 134.50 is the amount that they can't overspend.
2) Solve the equation
134.50 >= 24x +14.5
120>= 24x
5>= x
3) Solve
You can only bring 5 people maximum.
3(4v - 6) - 4( v + 6) simplify use distributive property
Answer:
8v - 42
Step-by-step explanation:
Simplify:Distributive property: a* (b + c) = (a*b) + (a*c)
3(4v - 6) - 4(v + 6) = (3*4v) + (3*(-6) ) + (-4*v + (-4)*6) )
= 12v - 18 - 4v - 24
= 12v - 4v - 18 - 24
Combine like terms [ 12v & (-4v) ] and combine constants [ (-18) & (-24)]
= 8v - 42
9+x=11 what is the value of x?
Answer: the answer to that problem is
X=2
If x and y are in direct proportion and y is 56 when x is 7, find y when x is 9
The variable y has a value of 72 when x equals 9
How to determine the value of y from xThe variation statement is given as
x and y are in direct proportion
This means that
y = kx
Where k represents the constant of variation
Using the values given from the question, we have
(x, y) = (7, 56)
This gives
56 = 7k
Divide both sides by 7
k = 8
So, we have
y = 8k
The value of y when x = 9 is calculated as
y = 8 * 9
Evaluate the products
y = 72
Hence, the value of y is 72
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The nth term of a sequence is 50-n2. Find the thurd term of the sequence.
The third term of the sequence is 41.
Given,
Tn = 50 - n²
Tn = 50 - (3)²
Tn = 50 - 6
Tn = 41
As the third term is required substitute the value in the main equation 50 - n² which gives T3 = 41.
As the third term is necessary, replace 50 - n² in the main equation, yielding T3 = 41.
Arithmetic Progression is a series of numbers in which the difference between consecutive terms is constant. One approach is to calculate the arithmetic mean. To do this, sum all the values and divide the sum by the number of values. For arithmetic sequences, use the expression a = a1 + (n1) d. where a is the term, a1 is the difference of the first term, and d is the difference of the subsequent term.
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HELP ASAP (100 POINTS)
The equation for the line of best fit for change in temperature, y, to amount of snow, s, is given by ŷ = − 2.6s + 1.1. On Friday, the observed amount of snow was 1.3 inches and the temperature change was 1.2 degrees. Find and interpret the residual.
1.08; The line of best fit underpredicts the temperature change.
−1.08; The line of best fit overpredicts the temperature change.
−3.48; The line of best fit overpredicts the temperature change.
3.48; The line of best fit underpredicts the temperature change.
Answer:
3.48; The line of best fit underpredicts the temperature change.Step-by-step explanation:
ŷ = − 2.6s + 1.1.
residual value = Measured value - Predicted value
Measured value = actual y-coordinate of the point, y
Predicted value = value of y from the equation, y1
residual value = (actual y-coordinate of the point, y) - (value of y from the equation, y1)
residual value = y - y1
For s = 1.3
y = 1.2
value of y from the equation, y1:
y1 = -2.6*(1.3) + 1.1
y1 = -3.38 + 1.1
y1 = -2.28
residual value = y - y1
residual value = 1.2 - -2.28
residual value = 1.2 + 2.28
residual value = 3.48Interpretation:
Since the predicted value is far less than the observed value, the line of best fit underpredicts the temperature change.
Answer:
3.48; The line of best fit underpredicts the temperature change.
Step-by-step explanation:
i took the test :)
Which value does NOT represent the shaded portion of the model shown? A 3/5 B. 0.3 C. 60% D. 0.6
Answer:
B
Step-by-step explanation:
All the rest = 3/5, 3 shaded out of 5
:]
What percentage of this shape is shaded?
Answer:
Answer:
Step-by-step explanation:
There are 9 squares filled halfway, and 5 squares filled completely.
9 x 0.5 = 4.5
4.5 + 5 = 9.5
There are 25 squares in the shape.
9.5 / 25 = 0.38
38% of the square is shaded.
In September, Liberty Elementary School collected 32,537 cans for a fundraiser. In October, they collected 207,492 cans.
a. About how many cans were collected during September and October? Round to the nearest thousand.
b. Which of these estimates will produce a more accurate answer rounding to the nearest thousand or rounding to the nearest ten thousand?
Rounding off to nearest ten thousand gives the most accurate answer as 240,000 cans.
Given that, the number of cans collected during September = 32,537 and the number of cans collected during October = 207,492.
What is rounding off numbers?Rounding numbers means adjusting the digits (up or down) to make rough calculations easier. The result will be an estimated answer rather than a precise one.
a) Now, the number of cans were collected during September and October = 32537+207492 = 240,029
To the nearest thousand is 240,000
b) Rounding 32,537 to the nearest thousand is 32000 and rounding 207,492 to the nearest thousand is 207,000
Sum = 32000+207000 = 239,000
Rounding 32,537 to the nearest ten thousand is 30000 and rounding 207,492 to the nearest ten thousand is 210,000
Sum = 30000+210,000 = 240,000
Therefore, rounding off to nearest ten thousand gives the most accurate answer as 240,000 cans.
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Sandi’s commission rate is 5.6%. She received a commission of $2,412 on vacation packages she sold in November. What is the amount of money in vacation packages that Sandi sold? Round to the nearest dollar.
Answer:
$43071
Step-by-step explanation:
Commission = 5.6%
So $2,412 represents 5.6% of total value of sold vacation packages
Image the numbers as ratios:
$2,412 : 5.6%
X : 100%
To get from 5.6% to 100% you can divide by 5.6 and then multiply by 100
So to find X you do:
(2,412 / 5.6)*100 = 43071.428…
Now round the answer to nearest dollar:
43071.428… = $43071 (to nearest dollar)