Answer:
80,000 people would answer in a town of 200,000 people
Answer:
80,000 people.
Step-by-step explanation:
Let's use a ratio:
voters : people overall
4 : 10
80 : 200
80,000: 200,000
80,000 out of 200,000 people voted.
0/10
SKILL LEVEL:
Beginning
Changes in size and shape are examples of
changes in
matter.
Answer:
Changes in size and shape are examples of physical changes in matter
Fidel has a rare coin worth $550. Each decade, the coin's value increases by 10% percent. Is it exponential, linear or neither?????
The increase in the coin's value is proportional to its current value, which means it follows an exponential growth pattern.
We can see this by calculating the value of the coin after each decade:
After 1 decade: 550 * 1.1 = 605
After 2 decades: 605 * 1.1 = 665.5
After 3 decades: 665.5 * 1.1 = 732.05
It can see that the value of the coin is increasing at a rate of 10% per decade, which is a characteristic of exponential growth. Therefore, the coin's value follows an exponential pattern.
Therefore, it is increasing and function represent a linear relationship between coins value.
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Solve by factoring x^4+6x^2-27=0
Answer:
Step-by-step explanation:
x^4+6x^2-27=0
The two factors you need to use for 27 is 9 and 3.
Since the middle term must be plus then the 9 is also plus.
(x^2 + 9)(x^2 - 3)
x^2 + 9 can't be factored in the real number system.
x^2 - 3 = 0
(x + sqrt(3))(x^2 - sqrt(3))
The full factoring answer would be
(x^2+9)(x + sqrt(3))(x^2 - sqrt(3))
scott can deliver 10 pizzas per hour and kenneth can deliver 12 per hour how mnay hours will it take them to deliver 110 pixzas
Answer:
5 hours
Step-by-step explanation:
Scott's delivery rate = 10 pizzas per hour
Kenneth's delivery rate = 12 pizzas per hour
Combined delivery rate
= Scotts delivery rate + Kenneth's delivery rate
= 10 + 12
= 22 pizza's per hour (take reciprocal to find the rate in "hours per pizza")
= 1/22 hours per pizza
Given that they both deliver 110 pizzas combined, the will take
= 1/22 hours per pizza x 110 pizzas
= (1/22) x 110
= 5 hours
Help asap!! Will give brainlist
Answer: -7 degrees Celsius
Step-by-step explanation:
6 hours passed. -2.5 times 6 is -15. 8-15 = -7.
Answer: C (-7 degrees Celsius)
Step-by-step explanation: Since it was 8 degrees Celsius at 4 pm and every hour it decreased by 2.5 degrees Celsius every 1 hour until 10 pm, we need to subtract 4 from 10 to get 6, then we multiply 6 by 2.5 and we get 15. If we subtract 15 degrees from 8, we get -7 degrees celsius. Hope this helps! :)
What division problem can be represented using the number line?
What is the probability that a test correctly rejects a false null hypothesis called?.
Power is the probability that a test correctly rejects a false null hypothesis.
What is probability?
Simply put, probability measures how probable something is to occur. We can discuss the probabilities of various outcomes—how likely they are—whenever we're uncertain of how an event will turn out.
Power is inversely related to the probability of making a type 2 error (β) which is rejecting the alternative hypothesis when it is true.
The equation of power is:
Power=1-β
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What is the Possible Energy Collected in kJ if the power striking an oven 53.2 cm by 44.5 cm is 1120.3 watt/meters squared over 71.9 minutes
The Possible Energy Collected in kJ is 30,999 kJ.
The first step in solving this problem is to determine the area of the oven. To do this, we need to multiply the length (53.2 cm) by the width (44.5 cm). This gives a result of 2359.4 cm².
Next, we can calculate the energy collected in kJ. To do this, we need to multiply the power (1120.3 W/m²) by the area of the oven (2359.4 cm²) and then by the time (71.9 min) and then divide by 1000 to convert into kilojoules (kJ). This gives the following equation:
Energy collected (kJ) = (1120.3 W/m² × 2359.4 cm² × 71.9 min) / 1000
Substituting in the values, this gives a result of 30,999 kJ of energy collected.
Therefore, the Possible Energy Collected in kJ is 30,999 kJ.
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Lourdes plans to jog at least 1.5 miles. Write and solve an inequality to find x, the number of hours that Lourdes will have to jog..
Answer:
An inequality compares two or more variables by using the <, >, ≤, or ≥ signs.
The number of hours Lourdes will have to jog is 0.4 hours
From the given parameters:
Lourdes plans to jog for at least a distance of 1.5 miles
If Lourdes can jog averagely at the speed of 3.75 mph
Then,
the inequality that can represent the information can be written as:
= 1.5 miles ≤ 3.75 (x) miles/hour
Solving the inequality;
= 1.5 ≤ 3.75 (x)
Making (x) the subject of the formula, we have:
x = 0.4 hours
Therefore, we can conclude that the number of hours lourdes will have to jog is 0.4 hours
Step-by-step explanation:
Describe the end behavior f(x)=x^3-4x^2+7
The behavior of the function falls to the left and rises to the right.
Given function f(x)=x^3-4x^2+7,
Firstly identify the degree of the function which is :
3
Now identify the leading coefficient which is :
1
Now, we know that if the degree is odd then the function ends in opposite direction.
And also the leading coefficient is positive which leads to rise of the graph to the right.
By using the degree and leading coefficient we can determine the behavior of the function by using below statements ;
1. Even and Positive: Rises to the left and rises to the right.
2. Even and Negative: Falls to the left and falls to the right.
3. Odd and Positive: Falls to the left and rises to the right.
4. Odd and Negative: Rises to the left and falls to the right
So the behavior of the function falls to the left and rises to the right.
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What is the number of the parking space covered by the car?
87
Step-by-step explanation:
the picture is upsidedown
Glassboro Associates have sold electric cars over the years.
Here is the historical data: Quarter Year 1 Year 2 Year 3 1 125 151
159 2 118 130 168 3 208 227 221 4 198 200 273 Develop a forecast
using
Based on the historical data provided by Glassboro Associates regarding the sales of electric cars, a forecast can be developed using the time-series analysis method, specifically, the moving average method.
The moving average method is a time-series analysis method that involves taking the average of the most recent n data values in a time series to forecast future values. This method assumes that future values are based on past behavior.
The formula for the moving average method is:
Forecast = (n1 + n2 + n3 + ... + nn) / n
Where n = the number of periods to be averaged, and n1, n2, n3, ... nn = the most recent n data values in the time series.
The historical data is shown in the table below:
Quarter Year 1 Year 2 Year 3 1 125 151 159 2 118 130 168 3 208 227 221 4 198 200 273
To develop a forecast, we will use the moving average method with n = 4. We will use the most recent four data values in each year to calculate the moving average forecast.
The forecast for each quarter of Year 1, Year 2, and Year 3 is shown in the table below:
Quarter Year 1 Year 2 Year 3 1 - - - 2 - - - 3 - - - 4 175.25 187.0 205.5
Therefore, the forecasted sales for Year 1, Year 2, and Year 3 are as follows:
Year 1 = 175.25 + 187.0 + 205.5 + 159 = 727.75
Year 2 = 187.0 + 205.5 + 159 + 168 = 719.5
Year 3 = 205.5 + 159 + 168 + 273 = 805.5
The forecast for Glassboro Associates' sales of electric cars over the next three years using the moving average method with n = 4 are 727.75, 719.5, and 805.5 for Year 1, Year 2, and Year 3, respectively.
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Please help.............
Answer:
a. 754cm³ (3 s.f.)
b. 415cm² (3 s.f.)
Step-by-step explanation:
Formulas (for easier reference):
Volume of cone: \(\pi\)r²\(\frac{h}{3}\)
Volume of hemisphere: \(\frac{2}{3}\)\(\pi\)r³
Surface area of cone without base: \(\pi\)rl
Surface area of hemisphere without base: 2\(\pi\)r²
We can just apply the formulas for the question:
Volume of toy = (\(\pi\) × 6² × \(\frac{8}{3}\)) + (\(\frac{2}{3}\) × \(\pi\) 6³)
= 96\(\pi\) + 144\(\pi\)
= 240\(\pi\)
= 754cm³ (3 s.f.)
Surface area of toy = (\(\pi\) × 6 × 10) + (2 × \(\pi\) × 6²)
= 60\(\pi\) + 72\(\pi\)
= 132\(\pi\)
= 415cm² (3 s.f.)
Tap water has a temperature of 60°C. The same cup of tap water is used for
3 other experiments before Dr. Woods finally gets it. Each experiment raises
the temperature of the water 12.5°C without allowing it to cool between
experiments. In his test, Dr. Woods has to lower the water 98°C before it
freezes. Find the freezing point of the tap water and compare it to the normal
freezing point of water.
He then raises the temperature of the same water 99.25°C, which causes it
to boil. Compare its boiling point to the normal boiling point of water.
To solve this problem, we can use the formula:
Q = mcΔT
where Q is the heat energy transferred, m is the mass of the water, c is the specific heat capacity of water (4.184 J/g°C), and ΔT is the change in temperature.
For the first part of the problem, we can use the formula to find the freezing point of the tap water:
Q1 = mcΔT1
where ΔT1 = 98°C - 60°C = 38°C
We assume that the mass of the water is the same in all experiments and in Dr. Woods' test, so we can use the same value of m throughout.
Q1 = mcΔT1 = m(4.184 J/g°C)(38°C)
Q1 = 1593.792 J
Each of the 3 other experiments raised the temperature of the water by 12.5°C, so the total change in temperature is:
ΔT2 = 12.5°C x 3 = 37.5°C
The heat energy transferred in these experiments is:
Q2 = mcΔT2 = m(4.184 J/g°C)(37.5°C)
Q2 = 1566.9 J
The total heat energy transferred before the water freezes is:
Q = Q1 + Q2 = 1593.792 J + 1566.9 J = 3160.692 J
We can now use the formula to find the freezing point of the tap water:
Q = mcΔTf
where ΔTf = T - 0°C
Assuming the same mass of water as before, we get:
3160.692 J = m(4.184 J/g°C)(60°C - 0°C)
m = 18.995 g
ΔTf = T - 0°C = 3160.692 J / (18.995 g x 4.184 J/g°C) ≈ 40°C
So, the freezing point of the tap water is approximately 40°C, which is 8 degrees higher than the normal freezing point of water (0°C).
For the second part of the problem, we can use the same formula to find the boiling point of the tap water:
Q = mcΔTb
where ΔTb = 100°C - T
Assuming the same mass of water as before, we get:
Q = mcΔTb = m(4.184 J/g°C)(99.25°C)
Q = 4158.83 J
4158.83 J = m(4.184 J/g°C)(T - 0°C)
T = 100°C + 4158.83 J / (18.995 g x 4.184 J/g°C) ≈ 116°C
So, the boiling point of the tap water is approximately 116°C, which is 16 degrees higher than the normal boiling point of water (100°C).
Solve the triangle ABC with ∠B = 90◦, ∠A = 36◦ and c = 100.
Answer:
<C = 54 degrees
b = 123.6
a = 72.6
Step-by-step explanation:
<C = 180 - 90 - 36 = 54 degrees
b = 100/sin54 = 123.6
a = sqrt (123.6^2 - 100^2) = 72.6
Pls help me with solving the problem below.
The value of a+ b + c + d + e + f is 2.
What is Factored Form?It is referred to as being in factored form when a quadratic expression is represented as the sum of two linear factors plus a constant.
We have to factor x² – y² – z² + 2yz.
Using the general rule that p² – 2pq + q² = (p – q)² .
So we want to rearrange the last three terms.
= x² + (–y² – z² + 2yz)
Now, If we were to factor out a –1 from the last three terms, we have
= x² – (y² + z² – 2yz)
Now put y² + z² – 2yz = (y – z)².
= x² – (y – z)²
This expression is actually a differences of squares.
We know p² – q² as (p – q)(p + q).
=x² – (y – z)²
= (x – (y – z))(x + (y – z))
Now, let's distribute the negative one in the trinomial x – (y – z)
= (x – (y – z))(x + (y – z))
= (x – y + z)(x + y – z)
Now, comparing (x – y + z)(x + y – z) and (ax + by + cz)(dx + ey + fz)
we get a = 1, b = –1, c = 1, d = 1, e = 1, and f = –1.
So, a+ b + c + d + e + f
= 1 - 1 + 1+ 1 +1 - 1
= 2
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Help me with this please
The two pairs of Adjacent angles in the figure are:
∠1 and ∠3, ∠3 and ∠7.
The correct option is c.
In the given diagram with two intersecting lines and angles ∠1, ∠3, ∠5, and ∠7, the adjacent angle pairs are as follows:
Adjacent angles to ∠1:
∠1 and ∠5
∠1 and ∠3
Adjacent angles to ∠3:
∠3 and ∠1
∠3 and ∠7
Adjacent angles to ∠5:
∠5 and ∠1
∠5 and ∠7
Adjacent angles to ∠7:
∠7 and ∠3
∠7 and ∠5
Adjacent angles are angles that share a common side and a common vertex, where the vertex is the point of intersection between the two lines. In this case, the adjacent angle pairs can be identified based on their relationship to each angle (∠1, ∠3, ∠5, ∠7) and the intersecting lines.
from the given choices,
∠1 and ∠3, ∠3 and ∠7
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can you please help me
Answer:
C.
Step-by-step explanation:
Hi there!
To answer this, we must set it up as
\(3x(2x^4-12x^2+7)\)
Now we just use the distributive property to solve.
this becomes \(6x^5-36x^3+21x\)
I hope this helps!
Find the surface area of the right triangular prism shown below.
Answer:answer is below
Step-by-step explanation:
first is to find the triangle area.
(3*4)/2=6.
there are two of these triangles, so multiply by 2.
6*2=12
then find the three rectangles using the given side lengths.
4*11=44
5*11=55
3*11=33
Add them together
33+44+55+12=144
the surface area is 144.
Nicole charges a flat fee of $15 for babysitting plus $7 per hour a) write about equation to find the total payout. b) Evaluate an equation to find the total payout if Nicole babysits for 5 hours.
Answer:
a) t = 7x + 15
b) Nicole is paid $50 for 5 hours.
Step-by-step explanation:
flat fee = a price that will not change = $15
$7 per hour = a price of $7 for an unknown amount of hours (x) = 7x
Let "x" = amount of hours.
Let "t" = total cost.
Set the equation:
t = 7x + 15
Nicole babysits for 5 hours. Plug in 5 for x in the equation:
t = 7x + 15
t = 7(5) + 15
t = 35 + 15
t = 50
Nicole is paid $50 for 5 hours.
~
9. Which function's graph is a translation of the graph of f(x) = x shifted 7 units to the left?
Answer:
b) g(x) = x + 7
it may seem like its x - 7, but it's actually x + 7 since it shifts up the graph 7 units.
a management dilemma defines the research question. (True or False)
Answer:
False
Step-by-step explanation:
Can someone do the work I’m so confused
Answer:
(1) n = 9
(2) n = 15
(3) r = -8
Plz mark brainliest:)
Answer:
n=9n=15r=-8Step-by-step explanation:
1.4=n/9+3
4-3=n/9
1=n/9 cross multiply
2. -7=-8+n/15
-7+8=n/15
1=n/15 Cross multiply
n=15
3.-11=r/2-7
-11+7=r/2
-4=r/2cross multiply
-8=r
r=-8
20=-7+1/2x what are the values
Answer:
X = 54
Step-by-step explanation:
20=-7 + 1/2x
+7 +7.
27 = 1/2x
*2 *2
x = 54
Write an equation of the line with a slope of 2/3
and y -intercept of -8
Answer: y= 2/3 + -8
Step-by-step explanation: Put into slope intercept form
The equation of the line with a slope of 2/3 and y -intercept of -8 is y = 2/3 x -
8
The slope intercept equation is represented as follows:
y = mx + b
where
m = slope
b = y-intercept
Therefore,
The equation of the line has a slope(m) of 2 / 3 and y-intercept of -8.
The equation can be represented as follows:
y = 2/3 x - 8
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A bus drives for 3½ hours at an average speed of 56 mph. How far does the bus drive?
Answer:
196 miles
Step-by-step explanation:
To find the distance that the bus drives, we can use the formula:
distance = rate x time
where rate is the average speed and time is the duration of the trip.
In this case, the average speed of the bus is 56 mph and the duration of the trip is 3 1/2 hours. However, it is easier to work with time in terms of a single unit, so let's convert 3 1/2 hours to 7/2 hours:
3 1/2 hours = (2 x 3) + 1/2 hours = 7/2 hours
Now we can plug in the values into the formula:
distance = rate x time
distance = 56 mph x 7/2 hours
We can simplify by multiplying 56 by 7 and then dividing by 2:
distance = (56 x 7) / 2 = 196 miles
y = 2x + 7
y - 2x = 7
Is it no solution, exactly one solution, or infinitely many solutions
PLEASE HELPPPPPP PLSSSS
Answer:
Infinite solutions
Step-by-step explanation:
you add 2x to both sides of the bottom equation and then BAM they are coinciding
Maya is estimating the product of 88 and 12. Which statements are true? Check all that apply.
Since Maya is estimating the product of 88 and 12, the statements that are true include the following:
If she rounds both values to the nearest ten, her estimate will be 900.If she rounds 88 to the nearest hundred and 12 to the nearest ten, her estimate will be 1,000.How to determine the true statements?In order to determine the statements that are true, we would have to evaluate each of the statement as follows:
"If she rounds both values to the nearest ten, her estimate will be 800."
Rounding up 88 and 12 to the nearest ten, we have the following:
Rounded up number = 88 ≈ 90
Rounded up number = 12 ≈ 10
Therefore, the product of 90 and 10 is given by:
Product = 90 × 10
Product = 900.
"If she rounds 88 to the nearest hundred and 12 to the nearest ten, her estimate will be 1,000."
Rounding up 88 to the nearest hundred, we have the following:
Rounded up number = 88 ≈ 100
Rounding up 12 to the nearest ten, we have the following:
Rounded up number = 12 ≈ 10
Therefore, the product of 100 and 10 is given by:
Product = 100 × 10
Product = 1,000.
In this context, we can reasonably and logically deduce only two statements are true while all of the other statements are false and incorrect.
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Complete Question:
Maya is estimating the product of 88 and 12. Which statements are true? Check all that apply.
If she rounds both values to the nearest ten, her estimate will be 800.
If she rounds both values to the nearest ten, her estimate will be 900.
If she rounds 88 to the nearest hundred and 12 to the nearest ten, her estimate will be 1,000
If she rounds both values to the nearest ten, her estimate will be 1,600.
If she rounds 88 to the nearest hundred and 12 to the nearest ten, her estimate will be 2,000.
Anna is following this recipe to make biscuits.
Anna uses 480 g of margarine.
How many grams of chocolate will she need?
Recipe: Makes 24 biscuits
80 g sugar
100 ml syrup
200 g oats
120 g margarine
40 g chocolate
Answer:
160 g of chocolate
Step-by-step explanation:
She is doing 4 times the recipe for 24 biscuits so you need to multiply by 4.
research suggests that people who work in business and professional settings spend 26% of their time speaking, compared to 23% writing, and 19% reading. what percentage do those same people spend listening?
32% of the same people spend their time listening.
The total number of mentioned people will be 100% or 1. Now, in the total people, the remaining ones who are not stated in the question, must be the listeners. Thus, calculating the remaining percentage of people, we will get the percentage of listeners in same people.
So, number of people who spend time speaking = 26%
Number of people who spend time speaking = \(\frac{26}{100}\)
Number of people who spend time speaking = 0.26
Number of people who spend time writing = 23%
Number of people who spend time writing = \(\frac{23}{100}\)
Number of people who spend time writing = 0.23
Number of people who spend time reading = 19%
Number of people who spend time reading = \(\frac{19}{100}\)
Number of people who spend time reading = 0.19
Total number of people involved in activities other than listening = 0.26 + 0.23 + 0.19
Total number of people involved in activities other than listening = 0.68
People who spend time listening = 1 - 0.68
People who spend time listening = 0.32
Percentage of people who spend time listening = 0.32 × 100
Percentage of people who spend time listening = 32%
Hence, 32% of the same people spend their time listening.
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