Please help ASAP
A map uses a scale of 3 centimeters to represent 20 miles. The distance between Mt. Hope and
Camden is 56 miles. Which proportion can be used to find 2, the distance between Mt. Hope and
Camden on the map?
Answer:
Option B is correct
Step-by-step explanation:
Hope that helped u
Karen wants to advertise how many chocolate chip are in in each Big Chip cookie at her bakery. She randomly selects a sample of 55 cookies and finds that the number of chocolate chips per cookie in the sample has a mean of 15.4 and a standard deviation of 3.2. What is the 99% confidence interval for the number of chocolate chips per cookie for Big Chip cookies? Enter your answers to accurate to one decimal place
99% confidence interval for the number of chocolate chips per cookie is
15.4 ± 1.1115
What is confidence interval?The mean of sample plus and minus the range of that sample constitutes a confidence interval.
Within a specific level of confidence, this is the range of values anticipated to fall within, if the test is repeated.
Number of cookies in the sample n = 55
Mean μ = 15.4
Standard deviation s = 3.2
Confidence = 99%
For 99% confidence interval Z-value = 2.576
Confidence interval
= μ ± Zs/√n
= 15.4 ± 2.576×3.2/√55
= 15.4 ± (8.2432/7.4162)
= 15.4 ± 1.1115
Hence, 15.4 ± 1.1115 is the 99% confidence interval for the number of chocolate chips per cookie.
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What is the area of this square
What is the equation of the exponential graph below?
Answer: C: y=6×6^x
Step-by-step explanation:
Hope this helps! Good luck!
what’s the answer to this problem , figure out the area and perimeter of this triangle
Answer:
area: 5×27÷2
perimeter:8+27+34
Anna and daniel are playing fraction capture. Anna is trying to find sectiones that add up to 3/4 she knows that 1/4 + 1/4 + 1/4 = 3/4 but she wants to earn an extra point for using a frction with a diffrent denominator. Write another number sentence Anna could use to show a sum of 3/4
Answer: \(\frac{1}{4} +\frac{1}{2}\)
Step-by-step explanation:
given data:
fraction = \(\frac{3}{4}\)
Solution:
se can make use of the fraction \(\frac{1}{4} + \frac{1}{2}\) to get same answer as shown bellow.
\(=\frac{1}{4} + \frac{1}{2}\)
first we look for the lcm of the denominators.
\(= \frac{2+1}{4}\)
\(=\frac{3}{4}\)
.
Write an equation for the line parallel to y = 6x + 14 that contains P(9, 1).
Answer:
y= 6x-53
Step-by-step explanation:
We know that parallel lines have the same slope. So, this line will also have a slope of 6.
We now have: y=6x+b
We need to find b. One way to this is to plug the coordinates of point P(9, 1).
We plug in 9 for x and 1 for y to solve for b:
1=6(9)+b
1=54+b
b=-53
So now we have the equation: y=6x-53
The length of three boards added together is 7.2 meters. The second board is twice the length of the first. The third board is three times the length of the first. What is the length of the three boards?
Answer:
Board 1 = 1.2m
Board 2 = 2.4m
Board 3 = 3.6m
Step-by-step explanation:
Board 1 = x
Board 2 = 2x
Board 3 = 3x
x + 2x + 3x = 6x
7.2 /6 = 1.2
Board 1 = 1.2
Board 2 = 2 (1.2) = 2.4
Board 3 = 3 (1.2) = 3.6
The ratio of the weight of max to that of his friend artur is 5:9. artur goes on a diet and lose 4kg and now the ratio of their weights is 5:7. how much does artur weigh now?
After losing 4 Kg ,the weight of Artur is 14 Kg .
In the question ,
it is given that ,
the ratio of weight of Max : Artur is 5 : 9 .
So the weights of Max and Artur before dieting is 5x and 9x .
Now Artur goes on dieting and lose 4 Kg weight and
the ratio of weight of Max and Artur becomes 5:7 .
and the weights of Max and Artur after dieting is 5x and 7x .
Present weight of Artur = 7x .
As we can see that the change in Artur weight is 9x - 7x = 2x
According to the question
2x = 4
x = 2
hence Artur now weighs 7*(2) = 14 Kg
Therefore , after losing, 4 Kg the weight of Artur is 14 Kg .
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find the area of the parallelogram with vertices a(−5, 6), b(−3, 9), c(1, 7), and d(−1, 4).
The area of the parallelogram is 16 square units
We can use the cross product of two vectors to find the area of the parallelogram.
Let's take the vectors AB and AC:
AB =
(-3, 9) - (-5, 6) = (2, 3)
AC =
(1, 7) - (-5, 6) = (6, 1)
The cross product of these two vectors is:
AB x AC = (2, 3, 0) x (6, 1, 0) = (0, 0, 16)
The magnitude of this vector is the area of the parallelogram:
|AB x AC| = sqrt(0² + 0² + 16²) = 16
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what are the angle measures given the figure is a rhombus??
Answer:
28° at top and 1° at bottom
Step-by-step explanation:
If you look at it u can see that it's even so you would know it would be the same answer on each side.
Consider the following method, which implements a recursive binary search. /** Returns an index in myList where target appears, * if target appears in myList between the elements at indices * low and high, inclusive; otherwise returns -1. * Precondition: myList is sorted in ascending order. * low >= e, high < myList.size(), myList.size() > 0 */ public static int binarySearch(ArrayList mylist, int low, int high, int target) { int mid = (high + low) / 2; if (target myList.get(mid)) { return binarySearch(myList, mid + 1, high, target); } else if (myList.get(mid).equals(target)) { return mid; } return -1; } Assume that inputlist is an ArrayList of Integer objects that contains the following values. [e, 10, 30, 40, 50, 70, 70, 70, 70] What value will be returned by the call binarySearch(inputList, 6, 8, 70) ? O a 8 -1 O 5 7 6
The value returned by the call binarySearch (input List, 6, 8, 70) is 7.
The method provided in the question is a recursive binary search that searches for a target value within a sorted ArrayList.
The binarySearch method takes four arguments - the ArrayList to search within, the lower and upper bounds of the search range, and the target value.
In this case, the input ArrayList is [e, 10, 30, 40, 50, 70, 70, 70, 70].
The call to binarySearch(inputList, 6, 8, 70) will search for the value 70 within the sub-range of the ArrayList from index 6 to index 8, inclusive.
The mid index is calculated as
(8+6)/2 = 7
The value at index 7 is also 70, which matches the target value.
Therefore, the method will return the index 7, indicating that the target value was found at that position within the ArrayList.
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Write the equation of the line given two points on the line: (-3,-3) (-5,-3)
Answer:
y= -3
Step-by-step explanation:
I'll assume it is a linear line (straight line).
Sense the y-value doesn't change and stays -3, the equation for the line would be y= -3
And just so you know, the slope of the line would be 0.
5x+7y=3914. I'm not quite sure how to write the x and y! First answer will get Brainliest, thanks!
Answer:
hanges made to your input should not affect the solution:
(1): Dot was discarded near "4.".
Rearrange:
Rearrange the equation by subtracting what is to the right of the equal sign from both sides of the equation :
5*x+7*y-(3914)=0
STEP
1
:
Equation of a Straight Line
1.1 Solve 5x+7y-3914 = 0
Tiger recognizes that we have here an equation of a straight line. Such an equation is usually written y=mx+b ("y=mx+c" in the UK).
"y=mx+b" is the formula of a straight line drawn on Cartesian coordinate system in which "y" is the vertical axis and "x" the horizontal axis.
In this formula :
y tells us how far up the line goes
x tells us how far along
m is the Slope or Gradient i.e. how steep the line is
b is the Y-intercept i.e. where the line crosses the Y axis
The X and Y intercepts and the Slope are called the line properties. We shall now graph the line 5x+7y-3914 = 0 and calculate its properties
Graph of a Straight Line :
Calculate the Y-Intercept :
Notice that when x = 0 the value of y is 3914/7 so this line "cuts" the y axis at y=559.14286
y-intercept = 3914/7 = 559.14286
Calculate the X-Intercept :
When y = 0 the value of x is 3914/5 Our line therefore "cuts" the x axis at x=782.80000
x-intercept = 3914/5 = 782.80000
Calculate the Slope :
Slope is defined as the change in y divided by the change in x. We note that for x=0, the value of y is 559.143 and for x=2.000, the value of y is 557.714. So, for a change of 2.000 in x (The change in x is sometimes referred to as "RUN") we get a change of 557.714 - 559.143 = -1.429 in y. (The change in y is sometimes referred to as "RISE" and the Slope is m = RISE / RUN)
Slope = -1.429/2.000 = -0.714
Geometric figure: Straight Line
Slope = -1.429/2.000 = -0.714
x-intercept = 3914/5 = 782.80000
y-intercept = 3914/7 = 559.14286
Step-by-step explanation:
Answer:
y= -5/7x+3914/7
Step-by-step explanation:
Slope form is y=mx+b
5x+7y=3914
7y = -5x+3914 minus the 5x from each side
7y=-5x+3914 divide 7 from each side --> y= -5/7x+3914/7
So, 5x+7y=3914 is in ax+by=c (standard form) the "a" in "ax" can't be negative either.
a tower thats 54m tall cost a shadow 18m long. A building 6m tall cost a shadow of
Answer:
2m
Step-by-step explanation:
\(\frac{54}{18} =\frac{6}{x}\)
54x=108
x=2m
A triangle abc has angle measures of 45,45 and 90 and two congruent (equal sides). How would this triangle be classified?
Answer:
A right triangle
Step-by-step explanation:
The angle of 90 degrees is a right angle
Giorgi paid 1 GEL and 25 tetris for 5 erasers and 2 rulers, Tornike paid 1 GEL and 5 tetris for 2 erasers and 3 rulers.
Let's say the price of an eraser is x white, the price of a ruler is y white. To find these prices
The requried price of an eraser and ruler is given as 0.15 Tetris and 0.25 Tetris respectively.
What are simultaneous linear equations?Simultaneous linear equations are two- or three-variable linear equations that can be solved together to arrive at a common solution.
1 GEL and 25 tetris = 1.25
1 GEL and 5 tetris = 1.05
We can set up two equations to find the unknown values of x and y:
1.25 = 5x + 2y - - - - - -(1)
1.05 = 2x + 3y - - - - - (2)
To solve the system of equations, we can substitute the value of y in the first equation using the second equation:
y = (1.25 - 5x) / 2
Substituting this value of y in the second equation:
1.05 = 2x + 3((1.25 - 5x) / 2)
x = 0.15
Now,
Put x = 0.15 equation 1,
e get
y = 0.25
Thus, the requried price of an eraser and ruler is given as 0.15 Tetris and 0.25 Tetris respectively.
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Can someone help me out with this question fast!?!?!
Phillip is rolling two number cubes. How many different ways can he roll the number cubes and get a sum of 6?
A. 3
B. 4
C. 5
D. 6
Freight Train Cars In a train yard there are 4 tank cars, 12 boxcars, and 7 flatcars. How many ways can a train be made up consisting of 2 tank cars, 5 boxcars, and 3 flatcars
The total number of ways to make a train consisting of 2 tank cars, 5 boxcars, and 3 flatcars is: 166,320 ways.
To calculate the number of ways to make a train consisting of 2 tank cars, 5 boxcars, and 3 flatcars, we need to use the combination formula.
The number of tank cars, boxcars, and flatcars in the train yard are given as follows:
4 tank cars 12 boxcars 7 flat cars
We need to choose 2 tank cars out of 4, 5 boxcars out of 12, and 3 flatcars out of 7.
The combination formula is given by:
nCr = n! / r! * (n - r)!
where n is the total number of objects,
r is the number of objects being chosen at a time,
and ! represents the factorial of a number.
Substituting the values in the formula:
2 tank cars out of 4:
n1 = 4C2 = 4! / 2! * (4 - 2)! = 6 ways 5 boxcars out of 12:
n2 = 12C5 = 12! / 5! * (12 - 5)! = 792 ways 3 flatcars out of 7:
n3 = 7C3 = 7! / 3! * (7 - 3)! = 35 ways
Therefore, the total number of ways to make a train consisting of 2 tank cars, 5 boxcars, and 3 flatcars is:
n1 x n2 x n3= 6 x 792 x 35= 166,320 ways.
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You are on a 4.7 mile run and have already 1.97 miles. How many more miles do you need to run?
Answer:
2.73
Step-by-step explanation:
You would need to run 2.73 miles to have ran 4.7 miles in all.
4.7 - 1.97
Mrs. Peabodys classroom was collecting
canned goods for a food drive. Her class set
a goal of collecting 300 cans. At the end of
the food drive, they collected 270 cans. What
percentage of their goal did they meet?
Answer:
570
Step-by-step explanation:
yan sagot ko ehh balakajan
What is the solution to the following system of equations y x2 10x 11?
The solution to the given system of equations y = x² + 10x + 11, y = x² + x - 7 is x = -2, y = -5.
The given set of equations
y = x² + 10x + 11 --- eqn(1)
y = x² + x - 7 --- eqn(2)
Solving the equations by elimination method
⇒ Subtracting eqn 2 from eqn 1, we get
⇒ y - y = x² + 10x + 11 - (x² + x - 7)
⇒ 0 = x² + 10x + 11 - x² - x + 7
⇒ 0 = 9x + 18
⇒ 9x = -18
⇒ x = -2
Put the value of x in eqn 1, and we get
⇒ y = (-2)² + 10(-2) + 11
⇒ y = 4 - 20 + 11
⇒ y = -5
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Please help me before my mom starts yelling at me about not gettting my assignments done
Answer:
D. no solutions
10
12
16
A
A sequence of transformations maps AABCTO AABC. The sequence of transformations that maps ABC to ABC is a reflection across
followed by a translation
Reset
Next
veyanch 48997633/4
hp
Answer:
The sequence of transformations that maps ΔABC to ΔA'B'C' is the reflection across the line y = x and a translation 10 units right and 4 units up, equivalent to T₍₁₀, ₄₎
Step-by-step explanation:
For a reflection across the line y = -x, we have, (x, y) → (y, x)
Therefore, the point of the preimage A(-6, 2) before the reflection, becomes the point A''(2, -6) after the reflection across the line y = -x
The translation from the point A''(2, -6) to the point A'(12, -2) is T(10, 4)
Given that rotation and translation transformations are rigid transformations, the transformations that maps point A to A' will also map points B and C to points B' and C'
Therefore, a sequence of transformation maps ΔABC to ΔA'B'C'. The sequence of transformations that maps ΔABC to ΔA'B'C' is the reflection across the line y = x and a translation 10 units right and 4 units up, which is T₍₁₀, ₄₎
Check whether the relation R defined in the set {1, 2, 3, 4, 5, 6} as
R = {(a, b): b = a + 1} is reflexive, symmetric or transitive.
Answer:
The answer is R is neither reflexive, nor symmetric, nor
transitive.
Step-by-step explanation:
Let A = {1, 2, 3, 4, 5, 6}.
A relation R is defined on set A as:
R = {(a, b): b = a + 1}
R = {(1, 2), (2, 3), (3, 4), (4, 5), (5, 6)}
We can find (a, a) ∉ R, where a ∈ A.
For instance,
(1, 1), (2, 2), (3, 3), (4, 4), (5, 5), (6, 6) ∉ R
R is not reflexive.
It can be observed that (1, 2) ∈ R, but (2, 1) ∉ R.
R is not symmetric.
Now, (1, 2), (2, 3) ∈ R
But, (1, 3) ∉ R
R is not transitive
Thus, R is neither reflexive, nor symmetric, nor transitive.
Multiply 8/11 by the reciprocal of -16/121
Answer: -11/2
Step-by-step explanation:
First, find the reciprocal of -16/121. Which is -121/16 (you can put the negative sign anywhere). Now, you must multiply the two fractions:
\(\frac{8}{11} *-\frac{121}{16}\)
You can cross out the terms 8 and 16 because they can be simplified into 1 and 2. And you can cross out 11 and -121 because they can be simplified into 1 and -11:
= \(\frac{1}{1} * -\frac{11}{2}\)
Now multiply the numerators together, and multiply the denominators:
= \(-\frac{11}{2}\)
What is the simple interst on $32,000 at 7% interest for 6 months?
$13,440
$1,120
$6,720
$2,240
Answer:
B. $1120Step-by-step explanation:
Use simple interest formula:
I = PrtGiven:
P = $32000r = 7% = 0.07t = 6 months = 0.5 yearFind the amount of interest:
I = 32000*0.07*0.5 = 1120Correct choice is B
Interest be I
\(\\ \tt\hookrightarrow I=\dfrac{PRT}{100}=\dfrac{32000(7)(0.5)}{100}=\dfrac{112000}{100}=1120\$\)
Identify the length of JK.
ASAP please
Answer:
15x+5
Step-by-step explanation:
(7x+5)+(8x)
R = {(-3, -2), (-3, 0), (-1, 2), (1, 2)}
Find the values of a and b that complete the mapping diagram.
An effective visual representation of a function or a mapping between two sets is a mapping diagram. It consists of two vertical columns, one of which represents the domain set items and the other of which represents the range set elements. The items in the range set that match to those in the domain set are listed in the right column, and vice versa.
I assume you are given a mapping rule that relates elements in a set to other elements in another set, and you are asked to complete a mapping diagram based on this rule.
If the mapping rule is not specified, we cannot determine the values of a and b. However, assuming that the mapping rule is such that each element (x, y) in the set R is mapped to \((x + a, y + b)\), we can complete the mapping diagram as follows:
The given set R is:
R = {(-3, -2), (-3, 0), (-1, 2), (1, 2)}
If we apply the mapping rule to each element in R, we get:
(-3, -2) → (-3 + a, -2 + b)
(-3, 0) → (-3 + a, 0 + b)
(-1, 2) → (-1 + a, 2 + b)
(1, 2) → (1 + a, 2 + b)
To complete the mapping diagram, we need to find the values of a and b such that each mapped element is in the set R. That is, we need to find a and b such that:
(-3 + a, -2 + b) ∈ R
(-3 + a, 0 + b) ∈ R
(-1 + a, 2 + b) ∈ R
(1 + a, 2 + b) ∈ R
Substituting the values of R into each of these equations, we get:
(-3 + a, -2 + b) = (-3, -2), which gives a = 0 and b = 0
(-3 + a, 0 + b) = (-3, 0), which gives a = 0 and b = 0
(-1 + a, 2 + b) = (-1, 2), which gives a = 0 and b = 0
(1 + a, 2 + b) = (1, 2), which gives a = 0 and b = 0
Therefore, the values of a and b that complete the mapping diagram are a = 0 and b = 0.
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