Answer:
144
Step-by-step explanation:
Write a equation(or whatever it is called)
6/10=x/240Cross multiply, 1440=10xDivide, 144=xCheck your work:
6/10=144/240Cross multiply, 1440=1440Sal purchased two types of plant fertilizer and conducted an experiment to see which fertilizer would be best to use in his greenhouse. He planted 20 seedlings and used Fertilizer A on ten of them and Fertilizer B on the other ten. He measured the height of each plant after two weeks. What conclusion can Sal make about the plant fertilizers?
Sample number
Fertilizer A
Fertilizer B
1
19.8
23.4
2
25.7
30.1
3
29.0
28.5
4
23.2
26.3
5
27.8
32.0
6
31.1
29.6
7
26.5
26.8
8
24.7
25.2
9
21.3
27.5
10
25.6
30.8
A.
No conclusion can be made because the experiment is biased.
B.
The range of heights for plants with Fertilizer B is less than Fertilizer A.
C.
Fertilizer B will outperform Fertilizer A every time.
D.
On average Fertilizer A produces a taller plant.
Answer:
its B
Step-by-step explanation:
Fertilizer B is likely more effective than Fertilizer A.
The correct answer is option C: Fertilizer B will outperform Fertilizer A every time.
What is the mean?In mathematics and statistics, the term "mean" refers to the average of a set of variables. There are various ways to determine the mean, including geometric means, harmonic means, and simple arithmetic means (putting the numbers together and dividing the result by the quantity of observations).
To draw a conclusion from the experiment, we need to analyze the data. We can calculate the mean heights of the seedlings for each fertilizer.
For Fertilizer A: (19.8+25.7+29.0+23.2+27.8+31.1+26.5+24.7+21.3+25.6)/10 = 25.67
For Fertilizer B: (23.4+30.1+28.5+26.3+32.0+29.6+26.8+25.2+27.5+30.8)/10 = 28.89
Based on the data, it appears that the seedlings treated with Fertilizer B had, on average, a greater height than those treated with Fertilizer A.
Therefore, we can conclude that Fertilizer B is likely more effective than Fertilizer A.
The correct answer is option C: Fertilizer B will outperform Fertilizer A every time.
To learn more about the mean;
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A segment has a length of 18 inches it has been rotated de degrees around a center O. What is the length of the rotated segment
Answer: Wouldn't it still be 18 since it was just rotated and not dilated.
Answer:18in
Step-by-step explanation:
it will still be 18in because it rotated de degrees around
Four times a number plus three times a second number is negative nine. Twice the first number plus the second number is three.
Call the first number m and the second number n.
Answer:
m=9
n=-15
Step-by-step explanation:
If you set it up in a systems of equations way, ou would have
4m+3n=-9
+ . 2m+n=3
-------------------
You would need to cancel out a variable and in my opinion, canceling m out is easier.
4m+3n=-9
+-4m-2n=-6
-------------------
0m+n=-15
n=-15
you then plug this into one of the equations, (in my opinion the 2nd one is easier)
2m-15=3
2m=18
m=9
this gives you m so you can get the answer
m=9 and n=-15
What is the fraction of 41.66667
Answer:
[tex]41\frac{2}{3}[/tex]
I hope this helps!
Answer:
41.66 repeating or 41.67
Step-by-step explanation: hope this helps
Find the differnce
-c + 2 - 2+ c
Answer:
0
Step-by-step explanation:
Let's start by subtracting.
-c + 2-2 + c
We end up with..
-c + c
Now, let's combine like terms.
-c + c = -1c + 1c =
0
Hope this helped! :)
he parking garage of a mall is underground. Dr. Taylor parks her car 2 floors below ground level. She plans to walk to the 3rd floor of the mall from her car. How many floors will she travel from her car to the 3rd floor?
Answer:
she will travel 5 floors from her car to the 3rd floor.
solve the system by elimination. need work to be shown
Answer:
x=1, y=1, z=0
Step-by-step explanation:
System of Equations
We are required to solve the system of equations by elimination:
[tex]\left\{\begin{matrix}-2x+2y+3z=0\qquad [1]\\-2x-y+z=-3 \qquad [2]\\2x+3y+3z=5 \qquad [3]\end{matrix}\right[/tex]
Adding [1] and [3], and subtracting [1] and [2]:
[tex]\left\{\begin{matrix}5y+6z=5\qquad [4]\\3y+2z=3\qquad [5] \end{matrix}\right.[/tex]
Multiplying [5] by -3 and adding to [4]:
[tex]-4y=-4[/tex]
Solving:
[tex]y = -4 / (-4) = 1[/tex]
[tex]y=1[/tex]
Substituting into [5]:
[tex]5(1)+6z=5[/tex]
Simplifying:
[tex]6z = 0[/tex]
z=0
Substituting into [3]
[tex]2x+3(1)+3(0)=5[/tex]
Operating:
[tex]2x+3=5[/tex]
[tex]2x = 2[/tex]
[tex]x = 2/2=1[/tex]
x=1
The solution is
x=1, y=1, z=0
May u please help me ill give out the brainly
Answer: D
Step-by-step explanation:
1. 16 + 8 + 4 x 2 = 32
2. 24 / 4 x 2 = 12
3. 16 + 8 / 8 = 17
Answer:
d
Step-by-step explanation:
a= 56
b= 12
c= 17
Pls help thanks :)
Graph y ≤ - 2/3x + 6
Answer:
the bottom right
Step-by-step explanation:
The graph of the expression is attached
How to graph the expressionTo graph the inequality y ≤ -2/3x + 6, you can start by graphing the line y = -2/3x + 6, which is the equation without the inequality sign.
To do this, you can start by finding two points that lie on the line. Let's choose x = 0 and x = 3 to make it easier.
When x = 0, y = -2/3(0) + 6 = 6. So one point on the line is (0, 6).
When x = 3, y = -2/3(3) + 6 = 4. So another point on the line is (3, 4).
Plot these two points on the coordinate plane and draw a straight line through them. This line represents the equation y = -2/3x + 6.
Now, to graph the inequality y ≤ -2/3x + 6, you need to determine which side of the line satisfies the inequality. Since y is less than or equal to -2/3x + 6, you shade the region below the line.
To indicate this on the graph, you can shade the area below the line or draw a dashed line to represent the boundary of the inequality.
Learn more about inequality graph at
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a window washer clean 38 windows in 2 hours at this rate how many windows did he clean in 7 hours?
Answer:
133 windows
Step-by-step explanation:
ASSIGNMENT MATHS 6). À train which is moving with a uniform acrelaation is observed to take 20 and 30 seconds to travel successive 400m. How much further will it travel before coming to rest if acceleration remains uniform
Answer:
12000
Step-by-step explanation:
PLEASE HELP I WILL GIVE YOU A BRAINLIEST! During a basketball game, Tom attempted 25 shots and made 9. He says he made 40% of the shots he took. Is Tom correct? Explain your reasoning using complete sentences.
Answer:
Correct I think
Step-by-step explanation:
9 is nearly half of 25. (12.5) Half is equal to 50%. 40 is close to 50 and 9 is close to 12.5. So, he is correct. I think, hope this helps.
How do you write 8.69 × 10^-5 in standard notation?
Answer:
8.69*10^-5 in standard notation is, 0.0000869
Step-by-step explanation:
16\1024 cuánto es 16 dividido por 1024
Answer:
64
Step-by-step explanation:
1024÷16=64
hope this helps
State the number of complex roots and the possible number of real and imaginary roots for each equation. The find all roots? If possible.
Answer:
x =2
x = -2
Step-by-step explanation:
(x - 2)(x + 2)(x^2 + 4) = 0
(x - 2) = 0
x = 0 + 2
x = 2
(x + 2) = 0
x = - 2
x = - 2
(x^2 + 4) = 0
x^2 = 4
x = [tex]\sqrt{4}[/tex]
x = 2
Find the sum 3 1/3 and 3 2/5
Answer the question, considering an event to be "unusual" if its probability is less than or equal to 0.05. If you drew one card from a standard deck, would it be "unusual" to draw a 6?
Answer:
No it's not unusual
Step-by-step explanation:
That's an unusual definition for unusual if you don't mind me saying so.
There are 4 sixes in a standard deck of cards without the jokers. There are 52 cards in that deck
4/52 = 0.077
This is greater than 0.05 so it is not unusual.
Let's add the 2 jokers and see what happens.
4/54 = 0.074
That's still not going to get the situation defined as unusual.
Give the slope between the points
(-4,1) (-13,-1)
Answer:1/2
Step-by-step explanation: So slope is rise/run. -4 to -13 is -9 and 1 to -1 is -2. so rise over run is -2/-4 which is 1/2.
Autumn bought a scarf that costs 6 dollars and a watch that costs 19 dollars. At the counter, she received a discount. If she only paid 22 dollars total, how many dollars was the discount?
Answer:
19 + 6 = 25_ 25 - 3 = 22
Step-by-step explanation:
Good luck
Long division. Help please
Answer:
u got it correct keep going
Step-by-step explanation:
When graphing a linear inequality, when can you NOT use (0, 0) as a test point to determine which side of a boundary line to shade?
9514 1404 393
Answer:
when (0, 0) is on the boundary line
Step-by-step explanation:
Any test point you use to determine shading must not lie on the boundary line. You need a test point that will make the inequality true or false. That is, it must give a result a > b or a ≥ b, where a ≠ b. A point on the boundary line will give a = b, so is not helpful.
If the test point gives "true", then it lies in the shaded area. If it gives "false," then the other side of the line is shaded.
(0, 0) cannot be used as a test point when it lies on the boundary line.
What would the profit be if the flight had 8 first-class passengers and 42 tourist-class
passengers?
Do...
A. $1,260
B. $320
C. $1,580
Answer:
b
Step-by-step explanation:
i learned this
Which triangle is a translation of the orange triangle?
Answer:
5,6 meaning the answer is 4
Step-by-step explanation:
if 1/8=1/63+1/q what is the value of q
Answer:
9.1636
Step-by-step explanation:
1/8=1/63+1/q
1/8-1/63=1/q
63-8/504=1/q
55/504=1/q
55q=504
q=504/55
q=9.1636
So the answer is 9.1636
PLEASE HELP!! GEOMETRY!!
=685.67Step-by-step explanation:
The perimeter of the blueprint is represented by the equation P=8x. What is the equation of the perimeter when solved for x
Answer:
x = P/8
Step-by-step explanation:
The perimeter of the blueprint is given by the equation :
P = 8x
We need to solve the above equation for x.
Dividing both sides of the equation by 8.
[tex]\dfrac{P}{8}=\dfrac{8x}{8}\\\\x=\dfrac{P}{8}[/tex]
Hence, the value of x is P/8
The range of the relation {(1,2),(1,3), (2,2)} is
Answer:
12
Step-by-step explanation:
Booker owns 85 video games. He has 3 shelves to put the games on. Each shelve can hold 40 video games. How many more video games does he have room for?
Answer:
A
Step-by-step explanation:
i just dd t
Answer:
35 more Video Games
Step-by-step explanation:
He has 3 shelves that can hold 40 video games. So thats 3 x 40 = 120. The number 120 represents the total amount of video games that he can hold. But he already has 85. So subtract 85 from 120. Thats 120 - 85 = 35. He still has room for 35 video games. Hope this helps !!
please help will give brainliest
Answer:
My guess:
A. Consistent independent
B. Consistent dependent
C. Inconsistent
Step-by-step explanation:
The first is a repeated equation, so it is a consistent independent equation.
The second is consistent, trying to solve the value of Y. But it looks like it needs the other equation to complete it and solve the value of Y.
The third has no pattern, and isn't trying to solve any values, unlike the others. So it is inconsistent.
(Just a quick note, I do not have experience with this, but it is my best guess)
3/2 x + 5 = 5 -2 (x+7)