Answer:
B: -18 ÷ 3
Step-by-step explanation:
-18 because 1/4 is closer to 18
3 because 2/3 is closer to 3 than 2
Hope This helps! (Edgenunity Sucks!)
Triangle A B C is divided into two smaller triangles which are triangle A B D and D B C which share a common side B D. Point D lies on segment A C. Segment A D is congruent to segment C D.
If m∠BDC = 70°, what is the relationship between AB and BC?
AB = BC
AB < BC
AB > BC
AB + BC < AC
The relationship between AB and BC is that they are equal. So correct option is A.
Describe Triangle?A triangle is a geometric shape that has three sides and three angles. It is a fundamental shape in Euclidean geometry and is used in various applications such as architecture, engineering, and mathematics.
Triangles can be classified based on the length of their sides and the size of their angles. The three main classifications are:
Scalene Triangle: A triangle with no sides of equal length.
Isosceles Triangle: A triangle with two sides of equal length.
Equilateral Triangle: A triangle with three sides of equal length.
Since triangle ABD and triangle BDC share a common side BD and are congruent, their remaining sides AD and DC are also congruent. Thus, we can conclude that triangle ACD is an isosceles triangle. Since angle BDC is 70 degrees, then angle BAC and angle BCA must each be (180-70)/2 = 55 degrees.
Using the law of sines, we can find the ratio of AB to BC:
sin(55)/AD = sin(70)/BD
sin(55)/(AD/2) = sin(55)/(CD/2)
AB/AD = CD/BC
Since AD = CD, we can simplify the equation to AB = BC. Therefore, the relationship between AB and BC is that they are equal.
To know more about equation visit:
https://brainly.com/question/12788590
#SPJ1
Answer:
ab=bc
Step-by-step explanation:
someone on another brainly answered this
What’s the correct answer 9x+3-5x >2
Answer:
x>-1/4
Step-by-step explanation:
9x+3-5x>2
9x-5x+3>2
4x+3>2
4x>-1
x>-1/4
Therefore, x>-1/4
HELP
What is the equation for this situation?
The table shows a representation of the number of miles
a car drives over time.
Hours, x
Miles, y
Which could NOT be a point on this table?
3
195
4
260
5
325
6
390
Pattern: Each x value is multiplied by 65
to get each y value.
Answer:
Equation: y = 65x
Randomly pick a x and y value and plug into above equation, if they don't equal then the x and y you've picked cannot be on this table.
Step-by-step explanation:
Pick any two points to find slope, let's got with (3, 195) and (4, 260):
slope m = (y₂- y₁) / (x₂ - x₁)
= (260 - 195) / (4 - 3)
= 65 / 1
m = 65
Find y-intercept by using m from above and another point from your table, let's go with (5, 325):
y = mx + b
325 = 65(5) + b
325 = 325 + b
b = 0
Use m and b to form equation of line:
y = mx + b
y = 65x + 0
y = 65x
Check:
point (3, 195): 195 = 65(3) ====> 195 = 195
point (4, 260): 260 = 65(4) ====> 260 = 260
point (5, 325): 325 = 65(5) ====> 325 = 325
point (6, 390): 390 = 65(6) ====> 390 = 390
Example of a point that doesn't belong on table:
point (8, 500): 500 = 65(8) ====> 500 ≠ 520
The equation of the line is y = 95x option (D) and the point (8, 445) is not on the line option (B) is correct.
What is a linear equation?It is defined as the relation between two variables, if we plot the graph of the linear equation we will get a straight line.
If in the linear equation, one variable is present, then the equation is known as the linear equation in one variable.
It is given that:
The table shows a representation of the number of miles a car drives over time. Hours, x
The equation of the line:
y - 195 = (260-195)/(4-3)[x - 3]
y - 195 = 65(x - 3)
y = 65x - 195 + 195
y = 65x
Plug x = 8
y = 195(8) = 1560
Thus, the equation of the line is y = 95x option (D) and the point (8, 445) is not on the line option (B) is correct.
The missing options are:
What is the equation for this situation?
y = 195x +3y = 195xy = 65x +3y = 65xWhich could NOT be a point on this table?
(2, 130)(8, 445)(1, 65)(11, 715)Learn more about the linear equation here:
brainly.com/question/11897796
#SPJ2
Roll a number cube. If the number cube comes up odd, you win the same number of points as the number on the cube. If the number comes up even, you lose 4 points. What is the expected number of points per roll?.
Answer:
-0.5
Step-by-step explanation:
Expected value is found by multiplying the probabilities of each roll by the amount won or lost with each roll.
The odd rolls are 1, 3 and 5. The probability of rolling a 1 is 1/6, and the value is 1; this gives us 1/6(1) = 1/6.
The probability of rolling a 3 is 1/6, and the value is 3; this gives us 1/6(3) = 3/6.
The probability of rolling a 5 is 1/6, and the value is 5; this gives us 1/6(5) = 5/6.
Rolling any even number gives us the same value. The probability of rolling an odd number is 3/6, and the value is -4; this gives us 3/6(-4) = -12/6.
Together we have
1/6+3/6+5/6-12/6 = 4/6+5/6-12/6 = 9/6-12/6 = -3/6 = -0.5
The shop has a necklace of 41 pearls for sale, with the middle pearl being the largest and most expensive. Moving from the middle pearl towards each end of the coil, each subsequent pearl is cheaper than the previous one by one and the same amount. The most expensive pearl costs 55 euros, and the following pearls cost 52 euros. a) How much does one of the cheapest pearls cost? b) How much does this necklace cost, i.e. all the pearls together? c) One of the pearls in the necklace developed a crack and the price of this pearl decreased by 1/5. The price of the necklace therefore decreased by 6.5 euros. How much was this pearl before the crack?
The original price of the pearl was 52 euros.
What is price?Price is the monetary value of a product, service, or asset. It is one of the most important factors in a customer's decision to purchase something. Price also determines the amount of profit a business makes on a particular product or service. Price is a key component of the marketing mix, and it can be used to create a sense of value for customers. Price can also be used to differentiate a product from competitors, as well as to indicate quality levels and to create loyalty.
a) One of the cheapest pearls costs 41 euros.
b) This necklace costs 2153 euros, which is the sum of all the pearls.
c) The pearl with the crack originally cost 52 euros. The price was reduced by 1/5, which is 10.4 euros, making the price of the pearl 41.6 euros. The decrease in price of the necklace was 6.5 euros, which means the reduction in price of the pearl was 6.5 euros. Therefore, the original price of the pearl was 52 euros.
To know more about price click-
https://brainly.com/question/19104371
#SPJ1
There are 15C5 or 3003 possible combinations in the sample space.There are 20C5 or 15504 possible combinations in the sample space.
What is number?A number is a mathematical object used to count, measure, and label. Numbers can be represented in many different forms such as natural numbers, integers, real numbers, and complex numbers. They can also be classified as scalar numbers (which have a magnitude or value only) or vector numbers (which have both magnitude and direction). Numbers can be used to represent many different things, including measurements, distances, money, and quantities.
A. Sample space: The sample space for this experiment is the set of all possible combinations of 5 questions that can be selected from 15 questions. This can be calculated as follows: 15 choose 5 = 15!/(5!×10!) = 3003. Therefore, the total number of sample points in the sample space is 3003.
B. Sample space: The sample space for this experiment is the set of all possible combinations of 5 members that can be selected from the 20-member membership. This can be calculated as follows: 20 choose 5 = 20!/(5!×15!) = 15504. Therefore, the total number of sample points in the sample space is 15504.
To know more about number click-
brainly.com/question/24644930
#SPJ1
Need Answer FAST NO LINKS!!!! please help
mark brainllest to whoever gets it right
Please, I really need it
Answer:
2 -1 -2
Step-by-step explanation:
PLEASE ANSWER FAST
0 0 1 2 3 4 4 5 6 6
Which of the following could be the one missing data item for the above set, if the mode is 4?
A. 0
B. 3
C. 4
D. 5
Answer:
answer = c
Step-by-step explanation:
its because we need to add 1 more 4 for the number 4 to be the mode because the mode is the most nummber used
(10 pts) the reaction of an individual to a stimulus in a psychological experiment may take one of two forms,a or b. an experimenter wishes to estimate the probabilitypthat a person will react in manner a. assumethat the experimenter will be satisfied if the error of estimationεis less than 0.06 with probability equal to0.95. assume also that he expectspto lie somewhere in the neighborhood of 0.4. how many people mustbe included in the experiment?
Approximately 368 people must be included in the experiment to estimate the probability accurately.
To estimate the probability p that a person will react in manner a, the experimenter wants the error of estimation ε to be less than 0.06 with a probability of 0.95. The expected value of p is around 0.4. To determine the number of people needed for the experiment, we can use the formula:
n = (Z^2 * p * (1-p)) / (ε^2)
where Z is the standard normal value corresponding to the desired level of confidence. For a 95% confidence level, Z is approximately 1.96. Plugging in the values, we get:
n = (1.96^2 * 0.4 * (1-0.4)) / (0.06^2)
Simplifying this equation, we find that approximately 368 people must be included in the experiment to estimate the probability accurately.
To more about probability visit:
https://brainly.com/question/31828911
#SPJ11
Which statement describes the decimal equivalent of 3/16? *
A. It is a decimal with a repeating digit of 8.
B. It is a decimal with a repeating digits of 75.
C. It is a decimal that terminates after 3 decimal places.
D. It is a decimal that terminates after 4 decimal places.
Answer:
hope this helps a bit
Step-by-step explanation:
0.1875 this is the decimal equivalent to 3/16
Answer:
D. It is a decimal that terminates after 4 decimal places.
Given parallelogram A B C D below, DE = 31 If EB = x-7, solve for x.
The diagonals of the parallelogram intersect at the center. Then the value of the variable 'x' is 38.
What is a parallelogram?It is a polygon with four sides. The total interior angle is 360 degrees. A parallelogram's opposite sides are parallel and equal. Its diagonals intersect in the center.
Given parallelogram A B C D below, DE = 31 If EB = x - 7.
By the definition, then the equation is given as,
EB = DE
x - 7 = 31
Simplify the equation, then we have
x - 7 = 31
x = 31 + 7
x = 38
The value of the variable 'x' is 38.
More about the parallelogram link is given below.
https://brainly.com/question/1563728
#SPJ1
Anybody good in geometry and know how to do this ? Free Brainliest and points
Answer:
Answer- 1696.5 cubic inches
Step-by-step explanation:
r = d/2
r = 12/2 = 6 inches
Volume V = πhr^2
V = 3.14×15×6×6
V = 1695.6
Answer:
Its D
Step-by-step explanation:
Write a formula for perimeter and area of a circle
Thank you !
Answer:
Perimeter of a circle = 2 π r = π D.
Area of a circle is pi times the radius squared (A = π r²).
Bruce wants to make 50 ml of an alcohol solution with a 12% concentration. He has a 10% alcohol solution and a
15% alcohol solution. The equation 0.10x + 0.15(50 -x) = 0.12(50) can be used to find the amount of 10% alcohol
solution Bruce should use.
How much of the 10% alcohol solution should Bruce use?
40
mL
How much of the 15% alcohol solution should Bruce use?
mL aASAP
Answer:
x = 30 ml of 10%
50 - x = 20 ml of 15%
Step-by-step explanation:
0.10x + 0.15(50 - x) = 0.12(50)
distribute
0.10x + (7.5 - 0.15x) = 6
Combine like terms
-0.05x = -1.5
Divide both sides by -0.05
x = 30 ml of 10%
50 - x = 20 ml of 15%
18 is 15% of what number
Answer:
120
Step-by-step explanation:
2 - 3(x + 4) = 3(3 - x)
The equation 2 - 3(x + 4) = 3(3 - x) has no solution for x
Calculating the eqautionFrom the question, we have the following parameters that can be used in our computation:
2 - 3(x + 4) = 3(3 - x)
Open the brackets
So, we have
2 - 3x - 12 = 9 - 3x
Evaluate the like terms
So, we have
-10 = 9
The above equation is false
Hence, the equation has no solution
Read more about equation
https://brainly.com/question/148035
#SPJ1
Determine a suitable form for Y(t) if the method of undetermined coefficients is to be used. Do not evaluate the undetermined coefficients.
(a). y''+4y=sin2t+(2t+1)cos2t+tsint.
(b). y''-4y'+4y=t^2(e^(2t)-1).
(c). y''+2y'+2y=3e^(-t)+2e(-t)cost+4(t^2)e^(-t)sint.
Please answer all 3 questions rather than just 1 or 2.
(a) For y''+4y=sin2t+(2t+1)cos2t+tsint, we need to find a particular solution Y(t) using the method of undetermined coefficients.
Since the right-hand side of the equation contains sin(2t), cos(2t), and tsin(t), we can assume that the particular solution has the form:
Y(t) = A sin(2t) + B cos(2t) + Ct sin(t) + Dt cos(t) + Et + F
where A, B, C, D, E, and F are undetermined coefficients to be determined.
(b) For y''-4y'+4y=t^2(e^(2t)-1), we need to find a particular solution Y(t) using the method of undetermined coefficients. Since the right-hand side of the equation contains t^2e^(2t) and t^2, we can assume that the particular solution has the form:
Y(t) = (At^2 + Bt + C)e^(2t) + Dt^2 + Et + F
where A, B, C, D, E, and F are undetermined coefficients to be determined.
(c) For y''+2y'+2y=3e^(-t)+2e(-t)cos(t)+4(t^2)e^(-t)sin(t), we need to find a particular solution Y(t) using the method of undetermined coefficients. Since the right-hand side of the equation contains e^(-t), e^(-t)cos(t), and t^2e^(-t)sin(t), we can assume that the particular solution has the form:
Y(t) = Ae^(-t) + (Bt + C)e^(-t)cos(t) + (Dt + Et^2) e^(-t)sin(t) + F
where A, B, C, D, E, and F are undetermined coefficients to be determined.
To learn more about equation visit:
brainly.com/question/10724260
#SPJ11
Jasmine's bank statement showed the following deposits and withdrawals during a 30-day
month: $2400, $385, -$940.
Part A
What was the average change per day in Jasmine's account during this month?
Answer:
part A . 61.5$
Step-by-step explanation:
total amount = $2400+$385-$940
= 1845$
average change per day = 1845÷
30
answer is 61.5
find the perimeter and area of this figure.
Hey there! I'm happy to help!
AREA
To find the area of a parallelogram, you multiply the base by the height.
12(6)=72
The area is 72 square centimeters.
PERIMETER
The two diagonal sides are 8 cm and the two bases are 12 cm.
8+8+12+12=40
The perimeter is 40 cm.
Have a wonderful day! :D
Penny charges $5 per hour for babysitting, plus a flat fee of $12 for her travel expenses. Charlene charges $3 per hour for babysitting, plus a flat fee of $18 for her travel expenses.
Write an equation that could be used to determine the number of hours each babysitter must work to earn the same amount *
Answer: 5x+12=3x+18
Step-by-step explanation: let x = hours worked
Penny earns $5/hour + $12 fee so 5x+12
Charlene earns $3/hour + $18 fee so 3x+18
They are going to earn the same thing so 5x+12=3x+18
If B is between A and C and AB = 3x + 1, BC = 2x - 7, and AC = 24, then
find the value of x.
AB + BC = AC
3x+1 +2x -7 = 24
5x -6 = 24
5x = 30
x = 6
The value of x is 6.
It is required to find the scientific notation.
What is line?A line is a straight one-dimensional figure having no thickness and extending infinitely in both directions. A line is made of a set of points which is extended in opposite directions infinitely. It is determined by two points in a two-dimensional plane. The two points which lie on the same line are said to be collinear points.
GIven:
let AC is straight line and B is on line.
B is between A and C
AB = 3x + 1,
BC = 2x - 7,
AC = 24,
We have to find the value of x.
According to given question we have,
AB + BC = AC
3x+1 +2x -7 = 24
5x -6 = 24
5x = 30
x = 6
Therefore, the value of x is 6.
Learn more details about line here:
https://brainly.com/question/2696693
#SPJ2
will some one please tell me what 2x + 6y
Answer:
12
Step-by-step explanation:
2x - 6y = 12
Insert 0 for y
2x - 6(0) = 12
Simplify
2x = 12
Divide by 2 on both sides
x = 6
x - int = 6
Use original equation and insert 0 for x this time
2(0) - 6y = 12
Simplify
- 6y = 12
Divide by -6 on both sides
y = -2
y - int = -2
a baseball team plays in a stadium that holds 50000 spectators. with the ticket price at $8 the average attendence has been 22000. when the price dropped to $7, the average attendence rose to 25000. assume that attendence is linearly related to ticket price. what ticket price would maximize revenue?
In the stadium, the ticket price that maximizes revenue is $7.
Let the ticket price be = x
Let the attendance be = y
Therefore,
When x = 8, y = 22000
When x = 7, y = 25000
Calculating the slope -
= (25000 - 22000) / (7 - 8)
= 30000
Using the point-slope form of the equation of a line:
y - y1 = m(x - x1)
y - 22000 = 30000(x - 8)
= 30000x - 136000
Substituting x = 7 and x = 8 to find the corresponding values of y:
When x = 7,
= 30000(7) - 136000
= 173000
When x = 8,
= 30000(8) - 136000
= 184000
The maximum revenue happens at the lower terminus, which is when x = 7 because the revenue rises as the ticket price falls.
Read more about revenue on:
https://brainly.com/question/16232387
#SPJ4
Factor this equation
a^2+4b^2
Answer:
a2 + 4b2
Step-by-step explanation:
At a coffee shop, two sizes of coffee are sold. A medium coffee costs $3, and a large coffee costs $5. Write an equation that represents the relationship between the number of medium coffees sold, x, and the number of large coffees sold, y, in an hour where sales totaled $68.
The equation that represent the relationship of the coffees is 3x + 5y = 68.
How to represent situation with system of equation?At a coffee shop, two sizes of coffee are sold. A medium coffee costs $3, and a large coffee costs $5.
The equation that represent the relationship between the number of medium coffees sold, x, and the number of large coffees sold, y, in an hour where sales totalled $68 is as follows:
where
x = number of medium coffees soldy = number of large coffees soldTherefore, the equation is as follows:
3x + 5y = 68
learn more on equation here:https://brainly.com/question/14177953
#SPJ1
Help =10 point plus Brinsley thing fast
Answer:
20x + 5
all you really need to do is multiply the 4x and the 5. you just leave the + 5 alone
True/False based on the t-test assuming equal variances on the t-testequal worksheet, it is reasonable to assume that the variances are equal?
Based on the t-test assuming equal variances a. Examining the ratio of the variances, it is reasonable to conclude that the variances are unequal."
It is vital to establish whether or not the variances of the two groups being compared are indeed identical before performing a t-test under the assumption of equal variances. This is significant since the t-calculation statistic depends on the assumption that variances are equal.
One can look at the ratio of the variances between the two groups to evaluate the assumption of equal variances. Typically, it is acceptable to infer that the variances are not equal if the ratio of the variances is more than two or lower than half. One can presume that the variances are equal in the absence of such proof. Since the variances are not equal, it is not logical to infer that they are.
Complete and correct Question:
Based on the t-test assuming equal variances on the T-Test Equal worksheet, is it reasonable to assume that the variances are equal?
a. Examining the ratio of the variances, it is reasonable to conclude that the variances are unequal.
b. Whether the variances are equal or not is not relevant for this situation.
c. Examining the ratio of the variances, it is reasonable to conclude that the variances are equal.
d. It is impossible to determine if the variances are equal given the data we have.
Read more about T-tests on:
https://brainly.com/question/6501190
#SPJ4
we have 36 ft2 of material to build a box of maximum volume with a square base and no top. what is the area of the square base?
Answer:If 1200 square inch of material is available to make a box with a square base and no top
Step-by-step explanation:
3.
Mr. Arnie bought 3 lbs. of apples for $1.29 for each pound. He paid $0.32 in taxes. If he paid with a ten-dollar bill, how much did he receive in change?
Answer:
5.81$
Step-by-step explanation:
A public company provides you the following data:
Qualified SRED Expenses for this current year: $10,000
Last year's Taxable Loss: ($50,000)
This year's part I tax before SRED is $1,500
The SRED Credit remainder after applying the maximum SRED Credit for this year is?
$50
$100
$0
$1,500
The SRED Credit remainder after applying the maximum SRED Credit for this year is $0.
The Scientific Research and Experimental Development (SRED) program provides tax incentives for companies conducting eligible research and development activities. The SRED credit is calculated based on qualified SRED expenses and can be used to reduce the tax liability of a company.
In this case, the qualified SRED expenses for the current year are $10,000. However, the SRED credit remainder is determined after applying the maximum SRED credit for the year. Since the maximum SRED credit has already been applied, the remaining SRED credit is $0.
The taxable loss from the previous year ($50,000) and the part I tax before SRED ($1,500) are not directly relevant to determining the SRED credit remainder. The maximum SRED credit has already been utilized, resulting in a remaining credit of $0.
Learn more about SRED here:
https://brainly.com/question/33655978
#SPJ11