1 Joseph weighs 100 pounds and his sister weighs 100 pounds. How much do they weigh together? 15 a. 4 200 pounds 4 100 15 15 pounds b. d. 2 200 pounds 20 5 200 pounds 15 Please select the best answer from the choices provided O A OB Ос D
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For questions 3 that’s all i need help please !!! For a test and please put your answers below !!!
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Answer:
D - 1,078
Step-by-step explanation:
if you take 26.96 x 40, you will get 1,078
Invent examples of data with
(a) SS(between) = 0 and SS(within) > 0
(b) SS(between) > 0 and SS(within) = 0
For each example, use three samples, each of size 5.
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The sample of given data is Sample 1: 1, 2, 3, 4, 5 Sample 2: 6, 7, 8, 9, 10
b)Sample 1: 1, 2, 3, 4, 5 Sample 2: 6, 7, 8, 9, 10
(a) An example of data with SS(between) = 0 and SS(within) > 0 could be the following:
Sample 1: 1, 2, 3, 4, 5
Sample 2: 6, 7, 8, 9, 10
Sample 3: 11, 12, 13, 14, 15
In this example, the means of each sample are all different from each other, but the grand mean (8) is equal to the mean of each sample. Therefore, there is no variability between the means of the samples, resulting in SS(between) = 0. However, there is still variability within each sample, resulting in SS(within) > 0.
(b) An example of data with SS(between) > 0 and SS(within) = 0 could be the following:
Sample 1: 1, 2, 3, 4, 5
Sample 2: 6, 7, 8, 9, 10
Sample 3: 11, 12, 13, 14, 15
In this example, the means of each sample are all the same (8), but the values within each sample are all different from each other. Therefore, there is variability between the means of the samples, resulting in SS(between) > 0. However, there is no variability within each sample, resulting in SS(within) = 0.
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NEED HELP ASAP PLEASE HELP I NEED HELP! :/
Answers
Answer:
130 square feet
Step-by-step explanation:
Charlotte walks home from school every day at a rate of
4 miles per hour. It takes her 30-minutes to reach
home. Her brother, Noah, runs home from the same
school every day at a rate of 6 miles per hour. How
many fewer minutes does it take Noah than Charlotte
to reach home from school each day? Be sure to
SHOW your WORK!
Answers
Answer:
Noah takes 20 minutes to get to his house, that is, 10 minutes less than Charlotte.
Step-by-step explanation:
Since Charlotte walks home from school every day at a rate of 4 miles per hour and it takes her 30-minutes to reach home, while her brother, Noah, runs home from the same school every day at a rate of 6 miles per hour, to determine how many fewer minutes does it take Noah than Charlotte to reach home from school each day the following calculation must be performed:
Charlotte:
4 mph = 4/60 = 0.0666 miles per minute
0.0666 x 30 = 2 miles
So the distance from the school to her house is 2 miles
Noah:
6/60 = 0.1 mile per minute
2 / 0.1 = 20
Thus, Noah takes 20 minutes to get to his house, that is, 10 minutes less than Charlotte.
find the perimeter and area of the following figures (a) and (b). a. the perimeter is _______b. the shaded area is ______
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The perimeter of a figure is the length of its outer sides.
In this case, we need to find the perimeter of the semi-circle on the top and the highlighted sides of the two triangles at the bottom.
The perimeter of a semi-circle is given by the following formula:
\(P=\pi r\)Where r is the radius of the semi-circle.
The length of the missing sides of the triangles is given by the Pythagorean theorem, like this:
\(a=\sqrt[]{b^2^{}+c^2}\)Where b and c are the lengths of the legs of the triangles.
By replacing 8 for r into the first formula, we get:
\(P=\pi\times8=8\pi\)By replacing 8 for b and 15 for c into the second equation, we get:
\(a=\sqrt[]{8^2+15^2}=\sqrt[]{64+225}=\sqrt[]{289}=17\)Then, we just have to add up the perimeter of the semi-circle and the lengths of the mentioned sides, two times, because there are two triangles, like this:
Perimeter = 8π + 17 + 17 = 8π + 34
Then, the perimeter of figure a equals 8π + 34 meters
The area of this figure can be calculated by summing up the area of the semicircle and the area of the triangle, like this:
The area of the semi-cirlce (red shaded area) is given by the following formula:
\(A=\frac{\pi r^2}{2}\)The area of the triangle (yellow shaded area) is given by the following formula:
\(A=\frac{b\times h}{2}\)Where b is the length of the base and h is the height of the triangle.
By replacing 8 for r into the first formula, we get:
\(A=\frac{\pi\times8^2}{2}=\frac{64\pi}{2}=32\pi\)By replacing 15 for h and 16 for b ( 8 + 8) into the second formula, we get:
\(A=\frac{15\times16}{2}=120\)By adding the area of the semi-circle and the area of a triangle, we get:
Area = 32π + 120
Then, the area of the figure equals 32π + 120 square meters
What is the answer
Which integer CANNOT be a solution to the inequality x≤-1
A) 1
B) 0
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Answer:
both
Step-by-step explanation:
neither of those can be an answer. because x is less than or equal to -1
Julia sorted candies and found there were
10 each of these colors: green, red, and
pink and 20 blue in the package. Which
answer matches the percentage, decimal
and fraction of the blue candies in the
package?
F 20%, .2, 1/5
G 30%, .3, 3/10
H 40%, .4, 2/5
J 50%, .5, 1/2
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The percentage is 40%, decimal point of blue candies is 0.4, and the fraction of blue candies is 2/5. The correct option is H. 40%, 0.4, 2/5.
How to calculate the percentage and decimal? Percentage is a unit of measurement used to express a proportion of a whole number in terms of hundredths. To calculate a percentage, divide the number of items in question by the total number of items and then multiply the result by 100. For instance, if you were to calculate the percentage of apples in a basket that contained 12 apples and 8 oranges, you would divide 12 by 20 (12 + 8) and then multiply the result by 100. The answer would be 60 percent.Decimals are numbers that are expressed in tenths, hundredths, or thousandths of a unit. To calculate a decimal, divide the number of items in question by the total number of items. For instance, if you were to calculate the decimal amount of apples in a basket that contained 12 apples and 8 oranges, you would divide 12 by 20 (12 + 8). The answer would be 0.6.Given,
Julia has 10 candies in green, 10 candies in red, 10 candies in pink and 20 candies in blue. There are 50 candies in Julia's hand.
We have to find percentage, decimal and fraction of blue candies = ?
Percentage = 20/50 x 100 = 40%
Decimal = 20/50 = 2/5 = 0.4
Fraction = 20/50 = 2/5.
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Suppose that the demand of a certain item is x=-0.7p+10.
Evaluate the elasticity at 6.
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The item is an inelastic good at a price of 6 because it is negative and have a demand of -0.71.
What is the item's demand if elasticity is at 6?The formula for elasticity of demand is Elasticity of demand = (% change in quantity demanded) / (% change in price)
The initial quantity demanded at a price of 6 and the quantity demanded at a slightly different price must be know.
Let say Initial quantity demanded is:
x = -0.7(6) + 10
x = 5.8
Assume price changes slightly to 6.01, which gives us a new quantity demanded of x:
= -0.7(6.01) + 10
= 5.793
The % change in quantity demanded will be:
= [(new quantity demanded - initial quantity demanded) / initial quantity demanded] x 100%
= [(5.793 - 5.8) / 5.8] x 100%
= -0.12%
As price has changed from 6 to 6.01, we can calculate the percentage change as follows:
% change in price = [(new price - initial price) / initial price] x 100%
= [(6.01 - 6) / 6] x 100%
= 0.17%
Elasticity of demand = (% change in quantity demanded) / (% change in price)
= (-0.12% / 0.17%)
= -0.71
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A certain vehicle can accelerate from a standing start to a speed of v(t) = −0.24t2 + 12t feet per second after t seconds (for 0 ≤ t < 30).
a.
Find a formula for the distance that it will travel from its starting point in the first t seconds. [Hint: Integrate velocity to find distance, and then use the fact that distance is 0 at time
t = 0.]
b.
Use the formula that you found in part (a) to find the distance (in ft) that the car will travel in the first 10 seconds. (Round your answer to the nearest whole number.)
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The distance (in ft) that the car will travel in the first 10 seconds is 16.8 feet.
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, you can calculate the average speed of an object.
The speed formula is speed = distance/time.
We have been given certain vehicles that can accelerate from a standing start to a speed of v(t) = −0.24t² + 12t feet per second after t seconds (for 0 ≤ t < 30).
Then the distance that it will travel from its starting point in the first t seconds is;
\(\int\limits^{30}_b {v(t) } \, dx \\\\\\\int\limits^{30}_b {-0.24t^2 + 12t } \, dt \\\\\\\int\limits^{30}_b {-0.48t + 12} \, dt \\\\-0.48(30) + 12\\\\14.4 + 12 = 26.4\)
At zero it will be 12 feet.
b. the distance (in ft) that the car will travel in the first 10 seconds.
-0.48(10) + 12 = 16.8 feet.
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(3w^2 + 7W + 2) + (w^2 + 2W + 8)
Answers
Answer:
4w^2+9w+10
Step-by-step explanation:
(3w^2+7w+10+w^2+2W
Combine like terms
4w^2+7w+10+2w
Combine like terms
4w^2+9w+10
Answer:
4w^2+9w+10
Step-by-step explanation:
i cant figure out 1/5 x 60/1
Answers
[ 5 × 12 = 60 ]
\( = > \frac{1}{1} \times \frac{12}{1} \)\( = > 12\)[ Refer the attachment ]
When x = 2, 10+ 3(12= (3x)) = ?
A. 12
B. 16
C. 26
D.34
E. 104
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Answer: E
Step-by-step explanation:
Is 4.55555..... a rational or irrational number?
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Answer:rational
Step-by-step explanation:
Answer:
It is rational
Step-by-step explanation:
Since it repeats 5 over and over again it is rational. If the decimal didn't have a pattern like the number 4.598389599527... then the answer would be irrational.
what is mode and in 2hat ways can be find the mode of a given data!?
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Answer:
The mode of a data set is the number that occurs most frequently in the set. To easily find the mode, put the numbers in order from least to greatest and count how many times each number occurs. The number that occurs the most is the mode!
Step-by-step explanation:
internet.
Translate to an algebraic equation
5 less than one-half x is fifteen.
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5<1/2x=15
3. Which equation correctly shows the relationship between the numbers
2,560 and 256?
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Answer:
i dont know
what to say
Step-by- 2560 = 1000 x (2 + 5 + 6)
An oven is set at 176.8°C. Marla increases the temperature by 23.8°C.
What is the final oven temperature? and i need it by 12pm
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Will make brainliest please quickly Think about how the Black Death affected Europe’s population. What was a probable economic result of the Black Death? Why?
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it increased trade and economic growth! I just did my test on this. I don't have the why but I hope this helps!
Which of the following will form the composite function G(F(x)) shown
below?
G(F(x)) = 2(x-6)2 + 5
A. F(x) = x2 + 5 and G(x) = x-6
B. F(x) = 2x + 5 and G(x) = (x-6)2
C. F(x) = x - 6 and G(x) = 2x2 + 5
O D. F(x) = (x - 6)2 and G(x) = 5
Answers
Answer:
\(f(x) = 2x + 5\)
\(g(x) = (x - 6)^2\)
Step-by-step explanation:
Given
(a) to (d)
Required
Which will give:
\(f(g(x)) = 2(x - 6)^2 + 5\)
Equate the expression in bracket to g(x)
\(g(x) = (x - 6)^2\)
Replace g(x) with x in: \(f(g(x)) = 2(x - 6)^2 + 5\)
\(f(x) = 2x + 5\)
Pamela has already taken 3 pages of notes on her own, and she will take 2 pages during each hour of class. In all, how many hour will Pamela have to spend in class before she will have a total of 33 pages of notes in her notebook?
Answers
Answer:
The answer is 15 hours for her to reach 33 pages.
Step-by-step explanation:
2+3=5.
Then,
1 hour = 5
2 hours = 7
3 hours = 9
4 hours = 11
5 hours = 13
6 hours = 15
7 hours = 17
8 hours = 19
9 hours = 21
10 hours = 23
11 hours = 25
12 hours = 27
13 hours = 29
14 hours = 31
15 hours = 33.
how do you know when an expression is its simplest form
Answers
Answer:
you know it is when you can't solve it any further. If the numbers cannot be divided by a common number. there is no possible way to make it any more compacted.
Step-by-step explanation:
Answer: You know when an expression is in it's simplest form when you can't do anything to it.
Step-by-step explanation:
Example: -3x + 100 > -50
You can break this equation down into tinier pieces and make it easier to understand.
-3x > -150
This is a simpler inequality than the first one but, not in simplest form.
Now, x<50 is -3x+100>-50 in it's simplest form. You can't do anything to x>50 anymore. It's in simplest form.
) 65 people were asked on the activities they engage in during their free time. The results showed that 23 visit national parks, 26 engage in cycling while 22 engage in swimming. Furthermore 9 engage in swimming and visit national parks, 9 engage in swimming only while 11 visit national parks only. How many engage in
i. Swimming and cycling
Answers
Answer:
Step-by-step explanation:
i am working on the assumption that nobody does all three of them
i got 4 because including the people that do swimming and park, the total number of people that do swimming is 22.
the same logic goes for cycling: including the people that do swimming and visit the national park, the total is 23.
so that means that find how many people do swimming and cycling, we have to add the people doing only swimming, with the people doing both swimming and park and then subtract that answer from 22 which gives you 4
Paula budgets 23% of her annual income for housing. If she budgets$410 per month for housing, what is her annual income?a. $9,430b. $21,500.30c. $21,391.30d. $17,826.08
Answers
First, multiply her total budget per year by multiplying her monthly budget to 12 (12 months in a year).
\(\$410\times12=\$4920\)Next, convert 23% into decimal, and divide it to her annual budget for housing.
\(\begin{gathered} 23\%\Rightarrow0.23 \\ \\ \$4920\div0.23=\$21,391.30 \end{gathered}\)Therefore, her annual income is $21,391.30.
√38 I’m not sure how to solve these kinds of equations
Answers
Answer:
√38
Step-by-step explanation:
√38
step 1: Check which squared numbers can be multiplied by another number to get 38.
Start with these numbers: 4, 9, 16, and 25
Step 2: Testing out the numbers
√25 × __ = 25 can't be divided by 38
√16 × ___ = 16 can't be divided by 38
√9 × ____ = 9 can't be divided by 38
√4 × ____= 4 can't be divided by 38
Step 3: Answer
After trying the square root numbers that could possibly work with √38 none work; which means √38 can't be simplified. So the answer is √38
I hope this helps!
• What is the greatest common factor (GCF) of 5 and 12?
1
2
3
Answers
The greatest common factor (GCF) of 5 and 12 is 1.
We have,
To find the GCF, we need to determine the largest number that divides evenly into both 5 and 12.
In this case, the only number that divides evenly into both 5 and 12 is 1.
The number 1 is a factor of both 5 and 12 because it evenly divides into both numbers without leaving a remainder.
However, it is the largest number that satisfies this condition.
Therefore,
The GCF of 5 and 12 is 1.
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Find the equation of the circle shown
Answers
Check the picture below.
\(\textit{equation of a circle}\\\\ (x- h)^2+(y- k)^2= r^2 \hspace{5em}\stackrel{center}{(\underset{-5}{h}~~,~~\underset{5}{k})}\qquad \stackrel{radius}{\underset{5}{r}} \\\\[-0.35em] ~\dotfill\\\\ ( ~~ x - (-5) ~~ )^2 ~~ + ~~ ( ~~ y-5 ~~ )^2~~ = ~~5^2\implies \boxed{(x+5)^2 +(y-5)^2 = 25}\)
Lauren was trying to approximate the solution to n² = 115. She said that it lies
between √100 and √121. Therefore, it lies between 4 and 5, however a little closer
to 5. She approximated it to be about 4.7. Do you agree or disagree with her
reasoning? Explain.
Answers
What she approximated as 4.7 is not correct because the nearest perfect squares are 10 and 11 which are different from what she got.
How to find the square root of a number?We are told that Lauren is trying to approximate the solution to n² = 115.
Now, she has figured out that it lies between √100 and √121..
Now, √100 = 10 and √121 = 11. Thus, we can say that if she says it is between 4 and 5, then she is wrong because the nearest perfect squares are 10 and 11 which are different from what she got.
Thus, what she approximated as 4.7 is not correct.
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The length of a car is 18 ft and the width is 7ft.
If a model of a car is 9 in long, how wide is it?
Answers
Answer:
3.5 inches
Step-by-step explanation:
9 = 18 divided by 2
7divided by 2 = 3.5
Answer:
is 27 for the width and for how long is 9+9=18
Step-by-step explanation:
Westside Energy charges its electric customers a base rate of $8.00 per month, plus 12¢ per kilowatt-hour (kWh) for the first 300 kWh used and 4¢ per kWh for all usage over 300 kWh. Suppose a customer uses x kWh of electricity in one month. Express the monthly cost E as a piecewise defined function of x. (Assume E is measured in dollars.)
Answers
The linear function that gives the monthly cost E for x > 300 is given by:
E(x) = 44 + 0.04x.
What is a linear function?A linear function is modeled by:
y = mx + b
In which:
m is the slope, which is the rate of change, that is, by how much y changes when x changes by 1.b is the y-intercept, which is the value of y when x = 0, and can also be interpreted as the initial value of the function.When x > 300, we have that:
The base rate of $8.00 was paid.The 12 cents for each kWh up to 300 was paid.Hence the intercept is given by:
b = 8 + 0.12 x 300 = 44.
The slope is the cost per kWh of 4 cents, hence the function is:
E(x) = 44 + 0.04x.
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17. 17. The scores for a math test are shown below, ordered from smallest to largest. 60 61 62 63 63 64 64 65 66 66 66 69 72 72 72 74 75 80 82 84 86 86 87 87 89 89 90 93 94 98 Fill out the stem and leaf plot below for this data. Enter the leaves separated by commas (ex: 1,1,2,3). Stems Leaves
Answers
Answer:
Filling the values we have;
Explanation:
Given the data on the given table, we want to fill them in a stem leaves plot.
The tens values would be in the stems while the unit values will be written in their corresponding leaves.
Filling the values we have;
