Answer:
second, third and fifth are true
Step-by-step explanation:
1. Is the average change in population the same now as it was 50 years ago? Explain your answer.
2. Reflect on the interpretation of your data.
3. What should you consider when comparing population growth (or decline) over different intervals of time? Hint: What factors influence population growth or decline? Explain fully and provide examples where needed.
1. The average change in population is not the same now as it was 50 years ago. The population growth rate can vary greatly from year to year and decade to decade, and is influenced by a variety of factors such as birth and death rates, immigration, and emigration. Therefore, it is important to analyze the specific data for each time period to determine the average change in population.
2. When interpreting data on population growth or decline, it is important to consider the factors that influence population change and to analyze the data in the context of the specific time period being studied. It is also important to consider the accuracy and reliability of the data source, as well as any potential biases or limitations in the data.
3. When comparing population growth or decline over different intervals of time, it is important to consider a range of factors that can influence population change, such as birth and death rates, migration patterns, economic and environmental conditions, and government policies. For example, population growth rates in a country may be influenced by changes in healthcare access or advancements in technology that reduce infant mortality rates or increase life expectancy. In addition, migration patterns can greatly impact population growth rates, as some regions may experience large influxes of immigrants or emigrants at different periods in time. When comparing population data over different intervals of time, it is important to take into account these and other factors that may contribute to population growth or decline.
The table below shows the total number of text messages that brad sent over 4 days.
a)M=×50
b)30=1500
Step-by-step explanation:
30×50
=1500
A fruit juice recipe calls for 2 parts orange juice and 8 parts pineapple juice. Which proportion can be used to find the amount of orange juice, j, that is needed to add to 18 L of pineapple juice?
2 over 8 equals j over 18
8 over 2 equals j over 18
8 over j equals 2 over 18
16 over 18 equals j over 100
The correct proportion to use to find the amount of orange juice, j, needed to add to 18 L of pineapple juice is:
2/8 = j/18
This proportion relates the ratio of orange juice to pineapple juice in the recipe (2:8) to the amount of orange juice needed to add to 18 L of pineapple juice. By cross-multiplying, we can solve for j as follows:
2/8 = j/18
218 = 8j
36 = 8*j
j = 36/8
j = 4.5
Therefore, you would need to add 4.5 L of orange juice to 18 L of pineapple juice to create the fruit juice recipe that calls for a ratio of 2 parts orange juice to 8 parts pineapple juice.
Answer:
2 over 8 equals j over 18Step-by-step explanation
2 over 8 equals j over 18
This proportion represents the ratio of orange juice to pineapple juice in the recipe. By setting up the proportion, we can solve for the value of 'j,' which represents the amount of orange juice needed.
So, the correct proportion is:
2 over 8 equals j over 18
which one is it?
A
B
C
D
Answer: the answer is B.
Step-by-step explanation:
find the area of the trapazoid pls :))
if I calculated this right, it should be 175 :)
Brainly plz help only three questions and don't answer for point kinda rude
PLEASE HELP ME!!! I got the first one done please help me with the rest.
Box B has a volume of 591 1/2cm³. She should choose Box B because it has greater volume.
step by step:
Step 1) 13/4 × 13/2 = 13/4 × 26/4 = 338/4 = 84 1/2 (84.5)
Step 2) 84 1/2 × 7 = 591 1/2 (591.5)
Box B = 591.5cm³ > Box A = 185.25cm³
Petri did the following problem but got the wrong answer. She needs to correct her mistake and turn the problem back in.
(5 - 3) 2 ÷ 3 • 7 + 1
25 - 9 ÷ 3 • 7 + 1
25 - 3 • 7 + 1
25 - 21 + 1
4 + 1
5
What correction does Petri need to make?
A. She needs to multiply 3 times 7 before she divides.
B. She needs to change 25 to 10.
C. She needs to add before she multiplies.
D. She needs to subtract 5 - 3 first.
Answer:
Im not 100% on this but i think its D
Step-by-step explanation:
Answer:
The answer is d.
Step-by-step explanation:
It's been found that there is a 15% chance that you can win a particular game. How many "wins" would you have if you played 40 times?
(ANSWER ASAP)
Answer:
6
Step-by-step explanation:
15/100 of 40
= 3/20 x 40
= 3/1 x 2
= 3 x 2
= 6
Answer:
6 wins
Step-by-step explanation:
15% chance in winning a particular game also means that you will win 15% of the total number of games, which in this case, is 40.
Number of wins =
\(winning \: chance \times total \: games = 0.15 \times 40 \\ = 6\)
Sarah and her 4 friends share some cookies. If each person gets 3 cookies, how many cookies were shared?
Write a mathematical equation that represents this situation.
a. c/5 = 3
b. 5c =3
c. c/4 = 3
d. 4c = 3
Answer:
Step-by-step explanation: it is d that is the right
Answer:
A. C/5=3
Step-by-step explanation:
There C number of cookies among 5 people therefore
You choose A (if you are wonder the amount of cookies is 15)
Last year, the Golden State Warriors won 50 games. This year, they won 15 games. Which proportion represents the percent decrease in the amount of games the Golden State Warriors won?
Answer:
So, if there's an answer that's 30 that'd be it.
Step-by-step explanation:
15 + 30 = 50 therefore you add it up.
Find the surface area of the triangular prism.
Answer:
I think it is 108
Step-by-step explanation:
Multiply the pairs of numbers and match them with their products. Tiles (-5)(4.2) (-7)(-3) (4) (5) (2.5)(-9) Pairs 22.5 21 -22.5 -21 111
Here are the pairs matched with their products:
- (-5)(4.2) matches with -21
- (-7)(-3) matches with 21
- (2.5)(-9) matches with -22.5
Pairs (4) and (5) do not have corresponding products in the given options.
Help Please, I don't understand this
Firstly, you have to understand that if you talk about slope is a similar word gradient of the graph. So if you are calculating slope you have to use gradient formula:
m= Y2-Y1
X2-X1
therefore, in order for you getting first box & second box you have to use this formula above.
First box answer is:
Points fromthegraph (-2:-2) & (-3:-3)
m= Y2-Y1
X2-X1
m = -3-(-2)
-3-(-2)
m = 1
Second box answer is:
Points fromthegraph (3:3) & (4:4)
m= Y2-Y1
X2-X1
m= 4-3
4-3
m= 1
Third box answer is:
= 4
Forth box answer is:
= -3
What is the distance, in units, between the two points?
Answer: 8units by 5units
Step-by-step explanation: I started with the length counted from the point (-3,4) counting the number of squares that go to point (3,-4) giving me 8squares/units
then the width I used the same method getting 5squares/units
What equation represents the proportional relationship displayed in the table?
x 2 4 6 8
y 10 20 30 40
Enter your answer by filling in the box to complete the equation.
Answer:
Y=5x
Step-by-step explanation:
Every number in the y placement is the product of something times 5. Example :
2 * ___ = 10?
All you need to do is divide the product by the first number.
Answer:
its 5
Step-by-step explanation:
2x5=10 4x5=20 6x5=30 8x5=40
notice that all are multiplied by 5 this means they are proportional.
to find the answer enter in the box the number that every x value is being multiplied by
please help brainliest for the correct answer/best explanation!! <3
first box answer choices: 6, 8, 10, 16
second box answer choices: 6, 8, 10, 16
third box answer choices: 10, 12, 16, 22
fourth box answer choices: 10, 12, 16, 22
fifth box answer choices: 208, 256, 288, 304
Answer:
Each triangle will have a base of 16 and a height of 6. The rectangle will have a length of 16 and a width of 10. The total area of the ceiling is 256.
Step-by-step explanation:
Area of triangle:
1/2·b·h
1/2·16·6
1/2·96
=48
Area of rectangle:
l·w
16·10
=160
Two triangles and one rectangle
48+48+160=256:) ur welcomeOKOK I NEED HELP ON THESE THEY ARE MY LAST ONES
1. Triangle ABC has the following vertices: A (-1, 4), B (-1, 10), and C (3, 6).
It is translated to form Triangle A'B'C', and the new vertices are located at: A' (3, 4), B' (3, 10), and C' (7, 6).
Which statement below describes the translation that has occurred?
A. 4 units to the left
B. 2 units up
C. 3 units to the right
D. 4 units to the right
2. Point P, located at (-3, -4), is reflected across the y-axis.
What are the coordinates of this point after this transformation?
A. (3, -4)
B. (3, 4)
C. (4, 3)
D. (-3, 4)
3.A dilation with a scale factor of 1/2 is applied to the three sides of Triangle ABC to create Triangle A'B'C'.
The side lengths of Triangle ABC are: A = 4ft, B = 3ft, C = 5ft.
What are the lengths of the sides on the new Triangle A'B'C'?
A. A' = 8ft, B' = 6ft, C' = 10ft
B. A' = 2ft, B' = 1.5ft, C' = 2.5ft
C. A' = 3.5ft, B' = 2.5ft, C' = 4.5ft
D. A' = 4.5ft, B' = 3.5ft, C' = 5.5ft
4. There is a line segment called AB (not pictured). The coordinates of point A are (6, 2), and the coordinates of point B are (2, 6).
AB is transformed to form A'B', which is shown on the graph. Which transformation below caused AB to transform into A'B'? Use graph paper to sketch the transformation if needed.
A. a reflection across the x-axis
B. a counter-clockwise 90 degree rotation about the origin
C. a reflection across the y-axis
D. a translation 3 units down and 7 units left
A submarine dives 68 meters below its original location and then rises. The number line shows the elevations of the submarine after each event. How far did the submarine rise after diving? What was the original elevation of the submarine?
Answer:
It rose 17 meters
Step-by-step explanation:
163m is the depth of when it dove so if you take 163-68 then you get the original depth of 95 then take 95 - 78 to get 17 meters and thats your answer hoped i helped! :D good luck and i hope you do better
Help me and thank you!
Answer:
8/15
Step-by-step explanation:
2/9 / 5/12
8/36 / 15/36
16/30
8/15
Answer:
\(\frac{8}{15}\)
Step-by-step explanation:
To divide by a fraction, multiply by its reciprocal
2/9 × 12/5
Cancel the common factor of 3
2/3 × 4/5 =
8/15
good luck, i hope this helps :)
PLEASE HELPPP
a hot water tank was full of hot water before eddy used 15 gallons to wash clothes now there is only 80% of the water. how much water, in gallons, does the hot water tank hold?
Write 1/6 as a decimal rounded to the nearest thousandth. Thank you! <3
Answer:
0.167
Step-by-step explanation:
The answer to 1/6 is 0.16666666666 and the thousandth reduces it to 3 decimals so it would be 0.167 because you round up the 6's up to a seven on the 3rd decimal place.
hope this helps :) !!!
Answer:
0.167
Step-by-step explanation:
Convert the fraction to a decimal by dividing the numerator by the denominator.
Simplify 0.1666666666 repeating to 0.167.
Need answer asap, will give brainly if its right
Answer: 36 inches (in.)
Step-by-step explanation:
The first thing you need to do is form a right triangle from the starting point to the hole to the corner where the ball is at. Right triangles have a hypotenuse (the longest side), and two legs (the shorter sides).
We are told next to the drawing that it’s 39 feet from the staring point to the hole (given a straight line). This is the length of our hypotenuse. We are also given the length of one of the legs, with it being 36 feet.
We need to find the length of the last leg, the length from the ball to the hole. To do this, we can use the Pythagorean Theorem. The Pythagorean Theorem states that the square of each of the legs equals the square of the hypotenuse. The formula for the Pythagorean Theorem is \(a^{2} +b^{2} =c^{2}\), with \(a\) and \(b\) being the legs, and \(c\) representing the hypotenuse.
Input the given values into the formula and you get the following:
\(a^{2} +b^{2} =c^{2}\)
\(36^{2} + x^{2} =39^{2}\)
\(\sqrt{36^{2} } +\sqrt{x^2} =\sqrt{39^2}\)
\(36 +x =39\)
\(x=3\)
Therefore, the length from the ball to the hole is 3 feet (ft.).
BUT WAIT
The question asks us to provide our answer in inches (in.), and 1 foot equals 12 inches.
Therefore, the distance from the ball to the hole is 36 inches (in.).
May I have help again please!!
Answer:
500n+1200
Explanation:
1200 should be the answer since that the number she need to earn in total. And since she had 500 dollars already, n will be multiply with 500 dollars since n represents the remaining money she still need to earn.
Hope this helped
Find the slope of the line that passes through (10, 8) and (3, 4).
Simplify your answer and write it as a proper fraction, improper fraction, or integer.
Pls help me to find the median and mode, with solution pls
Answer:
Mode=32
Mean=32
Median=32
Step-by-step explanation:
Mode=highest frequency
Mode=10
Mean=£fx
£f
Mean=1280
40
=32
Median=n/2
=40/2
=20
median=32
1.Justin was tracking the growth of his new plant. His plant grew 2 inches every week.His plant was 10 inches when he got it, and 12 inches in the second week. Haw many inches tall was his plant in the sixth week?
2.If Justin's partern of growth continues, how tall will his plant be in the ninth weeks.
Answer:
1.20 inches
2.26
Step-by-step explanation:
6-2=4
so 4 weeks
4x2=8
8 more so 8+12=20
20 +((9-6)x2)=20+(3x2)=26
Answer:
1. 20 in
2. 26 in
Step-by-step explanation:
6-1=5
5*2=10
10in+10in=20in
(9-1)*2=16
16+10=26
Please help ASAP!
Evaluate the expression : 5/9 ( F - 32) when F = 122
1. 50
2. 60
3. 40
4. 20
Answer: 50
Step-by-step explanation:
5/9 (f-32) if f = 122 you take 122 and subtract 32 because of order of operations and now you have 5/9 (90) and then you multiply 5/9 times 90 and you get 50
HELP!!!
Solve for x given that CE = 36.
Show your work
Answer:
x=7
Step-by-step explanation:
CE = 36
CE = 9+(3x+6) = 9+6+3x = 15+3x
36= 15+3x
36-15 = 15-15+3x (removing 15 from left side also means removing 15 from right side)
21 = 3x
x= 21/3 = 7
Answer:
x=7
Step-by-step explanation:
First, I wrote down the equation.
3x+6=36-9
Then, I simplified it.
3x+6=27
Then, I moved the six from the right to the left.
3x=21
After that, I divided both sides by 3.
x=7
Yay! You got your answer!
Help Please.......
An expression is shown below:
2x3 + 10x2 − 4x2y − 20xy
Part A: Rewrite the expression so the GCF is factored completely.
The given expression can be rewritten as 2x(x²+5x-xy-10y).
The given expression is 2x³+10x²-2x²y-20xy.
What is GCF?GCF stands for the greatest common factor. The greatest common factor of two numbers is the greatest number that is a factor of both of them.
Now, 2x³=2×x×x×x, 10x²=2×5×x×x, 2x²y=2×x×x×y and 20xy=2×x×x×y
Here, the GCF of all the terms is 2x.
So, the expression becomes 2x(x²+5x-xy-10y).
Therefore, the given expression can be rewritten as 2x(x²+5x-xy-10y).
To learn more about the expression visit:
https://brainly.com/question/14083225.
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