Answer:
The answer is -w - 1
Step-by-step explanation:
2w + 3 - (4w + 4)
2w + 3 - 4w - 4
2w - 4w + 3 - 4 = -w - 1
Thus, The answer is -w - 1
-TheUnknownScientist
Two students are comparing scientific experiments to investigations. They came up with the following ideas.
Student A: Testing plant growth in different types of soils
Student B: Comparing the water level in a lake during different times of the year Which student gave an example of a scientific experiment? (5 points)
A: Student A because it requires experimental and control groups
B; Student B because it requires a hypothesis
C: Student A because it is preferably done in natural settings
D: Student B because it is preferably done across a long period of time
Answer:
A is the correct answer.
Step-by-step explanation:
In experiment we require a controlled variable which is the constant in example A that is the plant we intend to put into the soil. In example B there's no such thing as controlled variable, so we can't expect the position of the water level. the water level is so unpredictable since tides or tsunami might change the result.
Answer:
A
Step-by-step explanation:
Scientific experiments need to have an independent and a dependent variable. Scientists can manipulate the independent variable. A should be the correct answer because it mentions what I just said. All scientific experiments need to have a control and experimental group. Therefore, student A and the answer A are correct.
I wish you the best of luck :D
10 times what equals 12.5 pls help me, someone
12. A soup company packages its soup in cans shaped like right circular cylinders. A diagram for the net of the cylinder is shown.
Which is closest to the surface area of the cylinder?
(1 point)
38 in2
61 in2
113 in2
160 in2
Answer:
61 in²
Step-by-step explanation:
Area 2 circles =
2( πr²)
1.5 x 1.5 = 2.25
2.25 x 3.14 = 7.065
7.065 x 2 = 14.130
Area rectangle =
circumference circle x 5 =
2πr = 2(1.5 x 3.14) = 9.42
9.42 x 5 = 47.1
Total Surface Area = 47.1 + 14.130 = 61.230 ≈ 61 in²
If my answer is incorrect, pls correct me!
If you like my answer and explanation, mark me as brainliest!
-Chetan K
Anastasia is grocery shopping with her father and wonders how much shopping is left to do. "We already have 60\%60%60, percent of the items on our list," her father says. Anastasia sees 121212 items in the cart.
How many grocery items are on the list?
Answer:
20
Step-by-step explanation:
Hope this helped :P
Find the missing angle.
Answer:
x is equal to 91
Step-by-step explanation:
Answer:
81
Step-by-step explanation:
62+37=99
180-99=81
PLEASE HURRY!! I WILL MARK BRAINLIEST!!
The graph represents function 1 and the equation represents function 2:
A graph with numbers 0 to 4 on the x-axis and y-axis at increments of 1. A horizontal straight line is drawn joining the ordered pairs 0, 3 and 4, 3.
Function 2
y = 3x + 1
How much more is the rate of change of function 2 than the rate of change of function 1?
1
2
3
4
Answer:
its c
Step-by-step explanation:
Answer:
The rate of change of function 1 = 0 The rate of change of the function 2 = 3
Therefore, the rate of change of function 2 is 3 more than the rate of change of function 1.
Hence, option C is true.
Step-by-step explanation:
Function 1
A horizontal straight line is drawn joining the ordered pairs (0, 3) and (4, 3).
Given the points
(0, 3)
(4, 3)
It means
at x = 0, y = 3
at x = 4, y = 3
Since the y-values are same, it means the points lie on a horizontal.
The rate of change or slope of a horizontal line is zero because it does not rise vertically ( i.e. y₁ - y₂ = 0).
Therefore, the rate of change of function 1 = 0
Function 2
y = 3x+1
comparing with the slope-intercept form
y = mx+b
here m is the rate of change or slope and b is the y-intercept
so the rate of change of the function 2 = m = 3
Conclusion:
The rate of change of function 1 = 0
The rate of change of the function 2 = 3
Therefore, the rate of change of function 2 is 3 more than the rate of change of function 1.
Hence, option C is true.
A four-part spinner is spun once.
spinner with four parts labeled W, X, Y, and Z
List the sample space for the experiment.
S = {X, Y, Z}
S = {W, Z, Z}
S = {W, Y, Y, Z}
S = {W, X, Y, Z}
Answer:
the probability of each letter to be chosen is 1/4%.
S= {W, X, Y, Z}
Step-by-step explanation:
A bag of marbles contains 4 red marbles, 5 green marbles, and 3 blue marbles. Karen pulls two marbles out one after the other without replacing the first marble, what is the probability the first one is red and the second is blue?
Drag the correct steps into order to solve the equation −4+12=−4 for x
Answer:
Step 1: 4x = -16
Step 2: x = -4
Step-by-step explanation:
Subtracting 12 on both sides, and dividing by 4 will isolate "x" to solve the two-step equations, as we are performing opposite operations to the variable "x".
Please answer! Giving brainliest
Answer: its the second one
Step-by-step explanation: hope you do good!
help again :v sorry for the bother
Answer:
I did this before and if I remember correctly I'm pretty sure it was C.
Please try to help ASAP, thanks so much!!
The box plot below shows the total amount of time, in minutes, the students of a class surf the internet every day:
(Image below)
Part A: List two pieces of information that are provided by the graph and one piece of information that is not provided by the graph.
I’m to lazy to do my own math so help anyone?
Answer:
J
Step-by-step explanation:
Because we want to find out how much it varies or in simple words the difference we can use Range to solve this because range is the difference from the largest number to the smallest number.
PLS PLS HELP I BEG PLS SHOW WORK
Here is the way you would go about these questions. I will complete questions 1 and 3, as well as 7. Seeing the way these questions are solved, I am confident you can complete the rest.
1. The image is telling us that the circle's radius is 3 inches. To find the perimeter using radius, multiply the radius by two to get the full diameter. Then, multiply by π (3.14 in your case).
3 x 2 = 6 inches (diameter= 6 inches)
c=πd
c= 3.14 x 6
c=18.84 inches
∴The circumference is 18.84 inches.
3. The image is telling us that the diameter is 8 feet.
c=πd
c=3.14 x 8
c=25.12 feet.
∴The circumference of the circle is 25.12 feet.
7. This image is a semi-circle, which means that you may find the full diameter and divide by 2 (for half of the full circle).
c=πd
c=3.14 x 23
c=72.22 cm
72.22 ÷ 2= 36.11
∴The circumference 36.11 cm.
*CHALLENGE* 40 POINTS!!!
Answer:
16
Step-by-step explanation:
Emanuel is renting a car for 1week in Charleston, South Carolina. The rental car agency is charging $175 for the rental and 15% for taxes and fees. How much will Emanuel be paying for the car rental?
Answer:
201.25 (im not 100% sure)
Step-by-step explanation:
If its correct please mark me as brainliest
The y-coordinate of the vertex of the function y = 2x^2-8x+c is 2. The value of c is...
No Links please
Plz tell me what I did wrong! I got:
A RO LI RY IS ST ON LL T EA WI
1 2 3 4 5 6 7 8 9 10 11
1. 24 lb 2. 44% 3. $5,000 4. $150 5. 26 Yo 6. 440 pages 7. 248 cm
8. 64% 9. 45m 10. $108 11. 21%
Answer:
Try to move the words that you got around and see what that gives you
Step-by-step explanation:
Can you please mark me brainliest?
Is y = 6x - 4 proportional
What is the slope of the linear relationship shown on the graph?
A: negative two thirds
B: two thirds
C: negative three halves
D: three halves
Lucy earns 52 dollars each week working part-time at a bookstore. She earns one additional dollar for each book that she sells.
Let 'A' be the amount (in dollars) that Lucy earns in a week if she sells 'B' books.
Write an equation relating A to B . Then use this equation to find the amount of money Lucy earns if she sells 15 books.
Answer:
A = B + 52
Step-by-step explanation:
A is the total amount each week. 52 is the initial amount that she earns each week. Then, B represents the amount of books she sells. So, 15 books can be represented by
A = 15 + 52 = 67
Answer:
$67 earnings
Step-by-step explanation:
1. Let A = $ earned for books sold
2. Let B = # of books sold
3. Let A = money earned
4. Equation: A = 52 + 1B
5. Solution: $67 = 52+ 1(15)
Find the area of figure 2.
10 units2
16.5 units2
7.5 units2
25 unit
Use the diagram to find the measure of ∠PML.
Answer:
31 degrees
Step-by-step explanation:
We know that if the angle P is equal to 121+x=180 because when it is reflected, they both have to add up to 180. Therefore, P is equal to 59 degrees. We know that angle L is 90 degrees because there is a square. Therefore, we have to do 180-59-90 to find angle PML. 180-149. Angle PML is equal to 31 degrees.
If this helps please mark as brainliest
If the perimeter is 284, how long is the longest side?
Answer:
[tex]longest ~side=96[/tex]
Step-by-step explanation:
[tex]perimeter=12a+6a+8+10a+4+6a+8[/tex]
[tex]34a+12=284[/tex]
[tex]34a=284-12=272[/tex]
[tex]a=272/34=8[/tex]
[tex]sides~ will~ be[/tex]
[tex]12a[/tex] [tex]6a+8[/tex]
[tex]12*8,~~ 6*8+8[/tex]
[tex]10a-4 ~~~ 6a+8[/tex]
[tex]10*8-4, ~6*8+8[/tex]
[tex]96,~~56~,~76,~~56[/tex]
[tex]so, ~the ~longest~side~is ~96[/tex]
--------------------------------------
hope it helps....
have a great day!!
Answer:
12a
12a = 96
Step-by-step explanation:
12a + (6a + 8) + (10a - 4) + (6a + 8) = 204
Combine like terms.
34a + 12 = 284
34a + 12 - 12 = 284 - 12
34a = 272
34a ÷ 34 = 272 ÷ 34
a = 8
Let's replace a and see.
6a + 8
6(8) + 8
48 + 8
56
12a
12(8)
96
10a - 4
10(8) - 4
80 - 4
76
Enter the rational number as a/b , where a and b are integers.
negative 57
The rational number −57 is equal to
Answer:
the answer is 57
Step-by-step explanation:
mark graphed points on the coordinate plane below to represent the locations of his school and bank
Answer:
(6,4) is the answer
The coordinates of the plane to represent the locations of his school and bank are (2, 4) and (6, 4).
What is mean by Coordinates?A pair of numbers which describe the exact position of a point on a cartesian plane by using the horizontal and vertical lines is called the coordinates.
Given that;
Mark want to add the location of the library on the coordinate plane.
Since, The coordinates of the plane to represent the locations of his school and bank.
Hence, We get;
Coordinate for school = (2, 4)
Coordinate for bank = (6, 4)
Thus, The coordinates of the plane to represent the locations of his school and bank are (2, 4) and (6, 4).
Learn more about the coordinate visit:
https://brainly.com/question/24394007
#SPJ3
helpppp fasttttttttt pleaseeeeeeeee
Answer:
4(x-1)+9=17
Step-by-step explanation:
3(-2x+1) + 5 = 3x-4-5x
expand
-6x + 3 + 5 = 3x-4-5x
-6x + 8 = -2x - 4
add 2x to both sides to put all x values + coefficients on one side
-4x + 8 = -4
subtract 8 from both sides to isolate x and its coefficient
-4x = -12
divide both sides by -4 to isolate x
x = 3
plug x=3 into each option to see if it works
1. 5(3+3)-4 = 30-4 = 26 != 10
2. 2(3+1) = 8 != 4
3. 4(3-1)+9 = 17 = 17
4. 4(3)+7 = 19 != 3+8 = 11
Can someone please ell me the answer to this, please? :)
Answer:
- 328 / 9
Step-by-step explanation:
- 36 + ( - 4 / 9 )
= - 36 - ( 4 / 9 )
= - 36 ( 9 / 9 ) - 4 / 9
= ( - 36 x 9 ) / 9 - ( 4 / 9 )
= ( - 324 / 9 ) - ( 4 / 9 )
= ( - 324 - 4 ) / 9
= - 328 / 9
please help me its due at 12a.m please and ty i'll give brainlisted
OMG PLEASE HELP MEEEE I NEED TO GET MY GRADE UP