Answers
Answer:
strong postive
Step-by-step explanation:
Related Questions
Ceci was feeding her guinea pig fluffles 30 grams of food each day and she needs to reduce the food by 15%. How many grams of food should Fluffles get each day?
Answers
Ceci should give Fluffles 26 grams of food each day after the 15% reduction.
Given that the original amount of food: 30 grams/day
Now, calculate the 15% reduction:
30 grams/day x 0.15 = 4.5 grams/day
Subtract the reduction from the original amount:
30 grams/day - 4.5 grams/day = 25.5 grams/day
Round the answer to the nearest gram:
25.5 grams/day ≈ 26 grams/day
Thus, she should give Fluffles 26 grams of food each day after the 15% reduction.
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Grandma’s Guide to Cooking Measurements
Dried Seasonings
1 pinch = 2 smidgens
1 dash = 2 pinches
1 sprinkle = 3 pinches
1 teaspoon = 8 dashes
Based on Grandma's guide to cooking, how many pinches are in one teaspoon?
Answers
Using proportions, it is found that there are 16 pinches in one teaspoon.
This question is solved by proportions, using a rule of three.One dash has 2 pinches. One teaspoon is the same as 8 dashes. How many pinches are there in 8 dashes?Hence, the rule of three is:
1 dash - 2 pinches
8 dashes - x pinches
Applying cross multiplication:
\(x = 2(8) = 16\)
There are 16 pinches in one teaspoon.
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evaluate each function k(a)=3a+2; Find k(2)
Answers
Step-by-step explanation:
k(a) =3a+2
k(2)=3*2+2
k(2)=6+2
k(2)=8
The commutative property does not work for which operations?check all that applys.
Answers
Answer: The commutative property states that the numbers on which we operate can be moved or swapped from their position without making any difference to the answer. The property holds for Addition and Multiplication, but not for subtraction and division.
Step-by-step explanation:
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PLEASE ANDWER FAST
Sora is also making a salad. Her salad dressing recipe uses 6 teaspoons of vinegar for every 15
teaspoons of olive oil.
2.1 How much vinegar does Sora need for 5 teaspoons of olive oil?
2.2 How much olive oil does Sora need for 8 teaspoons of vinegar?
2.3 If Sora makes 42 teaspoons of salad dressing, how much of each ingredient is in it?
2.4 If Sora makes 14 teaspoons of salad dressing, how much of each ingredient is in it?
Answers
The following answers are given as:
2.1)
2 teaspoons of vinegar are needed for 5 teaspoons of olive oil.
2.2)
8 teaspoons of vinegar are needed for 20 teaspoons of olive oil.
2.3)
There are 12 teaspoons of vinegar and 30 teaspoons of olive oil in the 42 teaspoons of salad.
2.4)
There are 4 teaspoons of vinegar and 10 teaspoons of olive oil in the 14 teaspoons of salad.
What is a unit rate?It is the quantity of an amount of something at a rate of one of another quantity.
In 2 hours, a man can walk for 6 miles
In 1 hour, a man will walk for 3 miles.
We have,
6 teaspoons of vinegar = 15 teaspoons of olive oil.
1 teaspoon of vinegar = 5/2 teaspoons of olive oil.
Now,
1 teaspoon of vinegar = 5/2 teaspoons of olive oil.
Multiply 2 on both sides.
2 teaspoons of vinegar = 5 teaspoons of olive oil.
Now,
1 teaspoon of vinegar = 5/2 teaspoons of olive oil.
Multiply 8 on both sides.
8 teaspoons of vinegar = 20 teaspoons of olive oil.
Now,
Total number of teaspoons = 42
1 teaspoon of vinegar = 5/2 teaspoons of olive oil.
Multiply 12 on both sides.
12 teaspoons of vinegar = 30 teaspoons of olive oil.
12 + 30 = 42 teaspoons
Now,
1 teaspoon of vinegar = 5/2 teaspoons of olive oil.
Multiply 4 on both sides.
4 teaspoons of vinegar = 10 teaspoons of olive oil.
4 + 10 = 14 teaspoons
Thus,
2 teaspoons of vinegar are needed for 5 teaspoons of olive oil.
8 teaspoons of vinegar are needed for 20 teaspoons of olive oil.
There are 12 teaspoons of vinegar and 30 teaspoons of olive oil in the 42 teaspoons of salad.
There are 4 teaspoons of vinegar and 10 teaspoons of olive oil in the 14 teaspoons of salad.
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You sailed 0.055 units to the left and found treasure at 0.085 units find where the ship started
Answers
Starting position = Treasure location + distance sailed to the left
Since we know going in the left direction typically is a means of subtraction, we can use inverse operations to solve this. We can set up an addition problem to solve this:
Starting position = 0.085 + 0.055
Starting position = 0.03 units
Therefore, the ship started at 0.03 units.
Find the equation, function and describe. (100 points)
X
1
2
3
4
5
6
7
Y
5
2.5
1.6667
1.25
1
.83333
.71429
Answers
Answer:
257890 is the function of the equation
Step-by-step explanation:
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Tatiana invests $1300 in one account and $2400 in an account paying 3% higher interest. At the end of the year she had earned $183 I’m interest. At what rate did she invest?$1300 invest at ____%$2400 invested at ____%
Answers
Tatiana invests $1300 in one account with rate r
and $2400 in an account paying 3% higher interest (rate: r+0.03)
At the end of the year she had earned $183 In interest:
\(1300r+2400(r+0.03)=183\)Use the equation above to solve r:
\(\begin{gathered} 1300r+2400r+72=183 \\ 3700r+72=183 \\ 3700r+72-72=183-72 \\ 3700r=111 \\ \\ \frac{3700}{3700}r=\frac{111}{3700} \\ \\ r=0.03 \end{gathered}\)Then, Use the value of r to find the interest rate of second account:
\(r+0.03=0.03+0.03=0.06\)Then, multiply each rate you get for first and second account by 100 to get the invest rate in %
$1300 invest at 3%$2400 invested at 6%
The 147 heights of males from a data set of body measurements vary from a low of 152.0 cm to a high of 192.5 cm. Use the range rule of thumb to estimate the standard deviations and compare
the result to the standard deviation of 12.22 cm calculated using the 147 heights. What does the result suggest about the accuracy of estimates of s found using the range rule of thumb? Assume the
estimate is accurate if it is within 1.7 cm.
Answers
Answer:The range rule of thumb states that the standard deviation (s) is approximately equal to the range (R) divided by 4, where the range is the difference between the maximum and minimum values of a data set.
Using this formula, we can estimate the standard deviation of the heights as:
s = R / 4 = (192.5 - 152.0) / 4 = 20.625 / 4 = 5.156 cm
Comparing this estimate to the actual standard deviation of 12.22 cm, we see that the estimate is off by a factor of approximately 2.37.
Since the estimate is not within 1.7 cm of the actual standard deviation, it suggests that the range rule of thumb is not a very accurate way to estimate the standard deviation of this data set. The standard deviation calculated using the full set of data is much larger than the estimate, which means that the spread of the data is greater than what would be expected based on the range rule of thumb.
exponential function passes through (1,10) and (4,80)
Answers
Answer: f(x)=2^x+5
Step-by-step explanation:
math
Watch help videoFor the following set of data, find the number of data within 2population standard deviations of the mean.54, 103, 62, 102, 60, 60, 54, 58
Answers
To find the mean, add the given data and then divide the sum by the number of data.
\(\begin{gathered} \bar{x}=\frac{54+103+62+102+60+60+54+58}{8} \\ \bar{x}=\frac{553}{8} \\ \bar{x}=69.125 \end{gathered}\)Find the standard deviation by
(1) Subtracting the mean from each data.
(2) Square each difference.
(3) Find the mean of the squares.
(4) Determine the square root of the mean of the squares.
Thus, the standard deviation is as follows.
\(\begin{gathered} \sigma=\sqrt[]{\frac{(54-69.125)^2+(103-69.125)^2+\cdots+(54-69.125)^2+(58-69.125)^2}{8}} \\ \sigma=\sqrt[]{\frac{(-15.125)^2+(33.875)^2+\cdots+(-15.125)^2+(-11.125)^2}{8}} \\ \sigma\approx\sqrt[]{\frac{228.765625+1147.515625+\cdots+228.765625+123.765625}{8}} \\ \sigma\approx\sqrt[]{\frac{3026.875}{8}} \\ \sigma\approx19.45 \end{gathered}\)Therefore, to obtain the number of data within 2 standard deviations, add and subtract the mean by the standard deviation. Thus, we obtain the following.
\(\begin{gathered} \bar{x}+2\sigma=69.125+2(19.45) \\ =69.125+38.9 \\ =108.025 \end{gathered}\)\(\begin{gathered} \bar{x}-2\sigma=69.125-2(19.45) \\ =69.125-38.9 \\ =30.225 \end{gathered}\)Since the range would be from 30.225 to 108.025, we can say that all of the given data are within 2 standard deviations of the mean. Thus, there are 8 data.
if x = { 3,6,9,12,...} and y = {5,10,15,20,.. then every member of x and y is ?
A) a multiple of 3 but not of 5
B) a multiple of 5 but not of 3
C) a multiple of 15
D) a multiple of 30
Answers
Answer:
the answer is D)
a multiple of thirty
What is the shape of the cross-section formed when a plane containing line AC and line EH intersects this cube? What is
the area of the cross-section? In two or more complete sentences, explain how you were able to determine the shape
and area of the cross-section. Be sure to include the properties of quadrilaterals and the mathematical computations
necessary to support your answers
Answers
The shape of the cross-section is a rectangle Then the area of the rectangle ACHE will be 22.63 square units.
What is Geometry?It deals with the size of geometry, region, and density of the different forms both 2D and 3D.
A cube with a side length of 4 units is given.
Then the shape of the cross-section formed when a plane containing line AC and line EH intersects this cube will be a rectangle.
Then the area of the rectangle ACHE will be
The length of AC or HE will be 4√2.
Then we have
Area = 4 x 4√2
Area = 22.63 square units
The shape is determined because the section is a surface and the dimension of the surface are different.
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Manny takes 36 pics with his new phone every hour and Colby takes 12 pics with his new phone every hour. Write an expression that could be used to describe the combination of pics taken after any given number of hours (h)?
Answers
Answer:
fgdowngjdsnj
Step-by-step explanation:
annnnnnnnnnnnnnnnnnnafmnfjknw jkfn
write a word problem for 5x5.
Answers
Answer: The answer is 5x5=25 rows of crops.
Step-by-step explanation:
A farmer has 5 acres of land and wants to plant 5 rows of crops on each acre. How many total rows of crops will the farmer have planted?
The answer is 5x5=25 rows of crops.
Answer: There were 5 groups of cats, and there 5 cats in each group. How many cats are there in total?
PLS help
Which of the following statements are true about the solids shown above
Answers
Answer:
kkkkkk
Step-by-step explanation:
Commute times in the U.S. are heavily skewed to the right. We select a
Type numbers in the boxes.
random sample of 220 people from the 2000 U.S. Census who reported a non- 10 points
zero commute time.
In this sample the mean commute time is 28.3 minutes with a standard deviation of 19.2 minutes.
Can we conclude from this data that the mean commute time in the U.S. is less than half an hour?
Conduct a hypothesis test at the 5% level of significance.
What is the p-value for this hypothesis test?
Your answer should be rounded to 4 decimal places.
Answers
Suppose you are given a rectangular piece of cardboard having length 6x+2 inches and width 2x−4 inches. Then you cut out a square from this piece of cardboard having side length x inches. Find the area of the remaining piece of cardboard expressed in terms of x.
Answers
To determine the area of the remaining piece of cardboard expressed in terms of x when a square of side length x inches is cut out from a rectangular piece of cardboard having a length of 6x+2 inches and a width of 2x-4 inches, use the following steps.
Draw and label a diagram of the problem. The rectangle should be labeled as 6x+2 inches by 2x-4 inches, and the square cut out should be labeled as x inches by x inches. This is how the diagram looks like: Determine the area of the rectangle, Arect.
The area of the rectangle is given by the product of its length and width. Thus, Arect = (6x + 2)(2x - 4) Determine the area of the square, Asq. The area of the square is given by the square of its side length. Thus, Asq = x²Step 4: Determine the area of the remaining cardboard after the square is cut out, Ar.
This is the difference between the area of the rectangle and the area of the square. Thus, Ar = Arect - Asq= (6x + 2)(2x - 4) - x²= 12x² - 20x - 16
Simplify the expression. The final answer is given in terms of x. Thus, Ar = 12x² - 20x - 16.The area of the remaining piece of cardboard is expressed in terms of x as 12x² - 20x - 16.
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A triangle has side lengths of (6g + 10) centimeters, (5g - 7) centimeters, and
(2h - 10) centimeters. Which expression represents the perimeter, in centimeters,
of the triangle?
Answers
The perimeter of the triangle is represented using the expression 11g + 2h - 7 centimeters
How to determine the perimeterGiven the lengths as;
6g + 10
5g - 7
2h - 10
The formula for perimeter of a triangle is given as;
Perimeter = Length + length + length
Now, let's substitute the values
Perimeter = 6g + 10 + 5g - 7 + 2h - 10
collect like terms
Perimeter = 6g + 5g + 2h +10 -7 -10
Perimeter = 11g + 2h - 7
Thus, the perimeter of the triangle is represented using the expression 11g + 2h - 7 centimeters
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During the winter months, heating bills can be expensive. A contractor claims that installing a new brand of insulation will considerably lower your heating bill (which was $205 last month). After conducting the test (assuming the data were provided). you find that the results are significant at the 5% level. You may also conclude: __________.a. the test would also be significant at the 10% level. b. the test would also be significant at the 1% level. c. both of the above. d. none of the above.
Answers
Answer:
The correct option is a
Step-by-step explanation:
Generally the null hypothesis is rejected (that the result is significant ) when the p-value is less that the the level of significance
Now from the question when the the level of significance was 5% the p-value was less than the level of significance so also when the level of significance is 10% the p-value will be less than the level of significance hence null hypothesis will also be rejected at this level(that is the result will also be significant at the level of significance )
Find a . the mean ; b . the deviation from the mean for each data item ; and c . the sum of the deviations in part ( b ) for the following group of data items . 155 , 156 , 162 , 164 , 168
Answers
(a) The mean of the data item from the group data is 161.
(b) The deviation from the mean for each data is -6,-5,1,3 and 7. respectively.
(c) The sum of the deviation is 0
What is a group data?Grouped data are data formed by aggregating individual observations of a variable into groups, so that a frequency distribution of these groups serves as a convenient means of summarizing or analyzing the data.
(a) To find the mean of the data, we use the formula below.
Formula:
M = ∑x/n.......... Equation 1Where:
M = Mean = ?∑x = Sum of each data = 155+156+162+164+168 = 805n = Total number of data item = 5Substitute these values into equation 1
M = 805/5M = 161(b) To calculate the deviation from the mean (M') for each of the data item we use the formula below.
M' = x-M
For data 115,
M' = 155-161 = -6For data 156,
M' = -5For data 162,
M' = 162-161 = 1For data 164,
M' = 164-161M' = 3For data 168,
M' = 168-161M' = 7(c) The sum of the deviation is
∑M' = -6+(-5)+1+3+7∑M' = 0Hence, the mean, the diaviation from the mean is -6,-5,1,3 and 7 and the sum of the deviation of the data is 161 and 0 respectively,
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Show the algorithm/abstract strategy to justify the 3/5?
Answers
The algorithm/abstract strategy to justify the fraction 3/5 involves interpreting it as a division, performing the division, and obtaining the decimal representation as the results.
To justify the fraction 3/5, we can use the concept of division and understand it as a ratio or proportion.
Algorithm/Abstract Strategy:
Start with the numerator, which is 3.
Identify the denominator, which is 5.
Interpret the fraction as a ratio or comparison between the numerator and denominator.
Understand that 3/5 represents a division where the numerator (3) is divided by the denominator (5).
Perform the division: 3 ÷ 5.
Simplify the division to its simplest form, if necessary.
The result of the division, in this case, is the decimal representation of the fraction.
If required, convert the decimal representation to a percentage or any other desired form.
For example, if we perform the division 3 ÷ 5, the result is 0.6.
So, 3/5 can be justified as the ratio or proportion where the numerator (3) is divided by the denominator (5) resulting in 0.6.
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A company is trying to determine how many Valentine’s Day cards to produce. The cost of printing x cards is $2 million +0.70x. For example, printing 1 million cards costs $2.7 million. Weekly demand for cards follows a normal random variable with a mean of 1.5 million and a standard deviation of 200,000 for a week before the day and a normal random variable with a mean of 0.5 million and a standard deviation of 300,000 for the week before that. The cards are sold for $4.00, and leftover cards have a value of $0.05. With the precision of 0.2 million, determine how many cards should the company produce to maximize its profit.
Answers
Question: 18 of 19
Lesson 18
Find the component form of the following vectors. Round your answers to the tenth.
Magnitude of v = 50, direction angle 0 = 50°
Choice 'A' OV
Choice 'B'O V
Choice 'C'OV
Choice 'D' OV
(38.3, 32.1)
(33.8, 31.2)
(32.1, 38.3)
(31.2, 33.8)
4
Answers
The component form of the following vectors is Option A. V = (38.3, 32.1).
To find the component form of a vector given its magnitude and direction angle, we can use trigonometry.
The component form of a vector in two dimensions is represented as (x, y), where x is the horizontal component and y is the vertical component.
In this case, the magnitude of the vector is given as 50, and the direction angle θ is 50°. We can use this information to calculate the horizontal and vertical components.
The horizontal component (x) can be found using the formula x = magnitude * cos(θ), and the vertical component (y) can be found using y = magnitude * sin(θ).
Let's calculate the components:
x = 50 * cos(50°) ≈ 38.3
y = 50 * sin(50°) ≈ 32.1
Rounding the answers to the nearest tenth, we get the component form of the vector V as (38.3, 32.1).
Therefore, the correct answer is A. V = (38.3, 32.1).
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The question is incomplete. Find the full content below:
Find the component form of the following vectors. Round your answers to the tenth.
Magnitude of v = 50, direction angle θ = 50°
A. V = (38.3, 32.1)
B. V = (33.8, 31.2)
C. V = (32.1, 38.3)
D. V = (31.2, 33.8)
PLEASE HELP WILL MARK BRAINIEST!!!!!
Answers
Answer:
a perpendicular line from a point on ab
Pls help!!!! It is khan academy and I’m giving 15 points!
Answers
The arrow is <—— so the inequality is <
The circle is colored so -3 in including making it less than or equal
x<-3
_
Or B
1. If Ray ran 10.5 miles in 7 days, how many miles
Would you expect him to run in 12 days?
Helpppp
Answers
What is the equation of a circle with a center at (−3, 2) and radius 16?
Answers
Answer:
(x+3)^2 + (y+2)^2 = 16
Step-by-step explanation:
hi!
so the equation of a circle with the center (h,k) and a radius r is:
(x-h)^2+(y+k)^2 = r^2
- h is the x value
- k is the y value
- r is the radius
so using your information you can plug in the given values into the "blanket" formula
which would result in:
(x--3)^2 + (y+2)^2 = 16^2 --> since there is a double negative, you can change that to a positive :)
this means that your equation is:
\((x+3)^{2} + (y+2)^{2} = 16^2\)
and you can even simplify 16^2 = 256
end formula!
\((x+3)^{2} +(y+2)^{2} = 256\)
Every 10 seconds in escalator step rise is 6 feet
a)
Think of this as a graph
Time (x)-10-20-30-40
Distance escalator rises (feet)
b) Draw a graph to represent the situation. All axis must be properly labeled using appropriate skills that at least four data points fit on the graph c) what is the slope line
d) interpret the unit rate
e) what is the equation of the line
Answers
The equation y = 0.60x. The 0.60 represents the 0.60 feet in each second rise. The table is completed below.
What is a linear equation?A connection between a number of variables results in a linear model when a graph is displayed. The variable will have a degree of one.
The linear equation is given as,
y = mx + c
Where m is the slope of the line and c is the y-intercept of the line.
Every 10 seconds in the escalator step rise is 6 feet.
Let 'y' be the number of feet and 'x' be the number of seconds. Then the equation is given as,
y = 0.60x
Then the table is given as,
Time (x) Distance escalator rises (feet)
10 6
20 12
30 18
40 24
The 0.60 represents the 0.60 feet in each second rise.
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URGENT!! ILL GIVE
BRAINLIEST!!!! AND 100
POINTS!!!
Answers
The volume comparison of the given data is written below:
the volume of 3 cones = The volume of one Cylinderthe volume of 2 cones = The 1/3 volume of the Cylinderthe volume of 1 sphere = The volume of 2 cylinders.the volume of 1 cone = The 1/6 volume of the cone.What is the volume of an object?In three dimensions, everything takes up some space. What is being measured here is the area's volume. The volume of an object is the area occupied inside its three-dimensional boundaries. It is referred to as the object's capability on occasion.
Given, The height of the cone and cylinder is twice the radius, while the radius of a sphere is the same.
The volume of the cone = πr²h
Since, h = 2r
The volume of the cone = πr² * 2r = 2/3 πr³
The volume of the Cylinder = πr²h
Since, h = 2r
The volume of the Cylinder = πr² * 2r = 2πr³
The volume of the sphere = 4 πr³
Thus, the volume of 3 cones = 2πr³
that is also equal to The volume of one Cylinder.
Thus, the volume of 2 cones = 4/3πr³
that is also equal to The 1/3 volume of the Cylinder.
Thus, the volume of 1 sphere = 4πr³
that is also equal to The volume of 2 cylinders.
Thus, the volume of 1 cone = 2/3πr³
that is also equal to The 1/6 volume of the cone.
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