someone help pls tysm
The mean of the number of plants (d) increases by 5.5
How to compare the mean of the number of plants?From the question, we have the table of values that can be used in our computation:
In the table, we have the following rows
Plants and Number of tomatoes
The mean of the number of plants is calculated as
Mean plant = Total number of tomatoes/Total number of plants
For the four plants, we have
Total number of tomatoes = 31 + 25 + 6 + 28 = 90
Total number of plants = 4
Substitute the known values in the above equation So, we have the following equation
Mean plant = 90/4
Mean plant = 22.5
For the three plants, we have
Total number of tomatoes = 31 + 25 + 28 = 84
Total number of plants = 3
Substitute the known values in the above equation So, we have the following equation
Mean plant = 84/3
Mean plant = 28
See that the difference is an increment of
Increment = 28 - 22.5
Evaluate
Increment = 5.5
Hence, the mean increases by 5.5
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A bag contains 8 red marbles, 9 yellow marbles, and 7 green marbles. How many additional red marbles must be added to the 24 marbles already in the bag so that
the probability of randomly drawing a red marble is
3/5?
A. 11
B. 16
C. 20
D. 24
E 32
The number of additional red marbles to be added to the total 24 marbles present in the bag is 16 marbles.
What is Probability?
Probability is the ability to happen. The subject of this area of mathematics is the occurrence of random events. From 0 to 1 is used to express the value. To forecast how probable occurrences are to occur, probability has been introduced in mathematics. The degree to which something is likely to happen is essentially the definition of probability. This is the fundamental theory of probability, which is also applied to the probability distribution, and from which you will discover the likelihood of results for a random experiment. We must first determine the total number of outcomes in order to calculate the probability that a single event will occur.So, Probability of Event, P(E) = Number of Favourable Outcomes/ Total Number of OutcomesFrom the question, it is given that the,
Number of Red marbles = 8
Number of Yellow marbles = 9
Number of Green marbles = 7
So, the total number of marbles = 8 + 9 + 7 = 24
Let [tex]x[/tex] be the additional number of red marbles added to the bag.
The total number of red marbles after the addition of [tex]x[/tex] red marbles into the bag = [tex]8+x[/tex]
The total number of all marbles after the addition of [tex]x[/tex] red marbles into the bag = [tex]24+x[/tex]
The probability of randomly drawing a red marble is given as equal to [tex]\frac{3}{5}[/tex]
We know that, the probability of randomly drawing a red marble is equal to the ratio of the total number of red marbles to the total number of all marbles.
---> P(R) = n(R)/n(T)
Substituting the given values, we get
3/5 = 8+x / 24+x
---> 5(8+x) = 3(24+x)
---> 40 + 5x = 72+3x
Solving, we get
5x - 3x = 72 - 40
---> 2x = 32
---> x = 16
Therefore, the additional number of red marbles to be added to obtain the required probability is equal to 16.
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(Multiplying and Dividing with Scientific Notation MC)
3.185x10¹7
9.1x108
Divide
Write the final answer in scientific notation.
The correct answer or scientific notation when 3.185× 10¹⁷ is divided by 9.1×10⁸ is 3.46×10⁸ and multiplying 3.185× 10¹⁷ with 9.1×10⁸ is 2.9×10²⁶.
It is given in the question that 3.185× 10¹⁷ is divided by 9.1×10⁸
we can write 3.185×10×10¹⁶ which equals 31.5×10¹⁶.
Now dividing 31.5×10¹⁶ by 9.1×10⁸ we get 3.46×10⁸.
Now multiplying 3.185× 10¹⁷ with 9.1×10⁸ we get 28.98×10²⁵
Converting 28.98×10²⁵ in scientific notation we get 2.9×10²⁶.
Numbers that are either too large or too little to be conveniently stated in decimal form can be expressed using scientific notation and known as standard form in the UK .
In scientific notation, a representation of a number that is a power of ten can also be written with equal ease. Additionally, you'll see that the amount of zeros in a regular decimal expression is exactly equal to the power to which 10 is raised.
Any time a number is expressed in words, it must first be written down as a regular decimal number before being converted. "Ten million" becomes "10,000,000" and vice versa.Ten million is written in powers of ten notation because there are seven zeros in all.
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A spinner contains the numbers 1 through 75. What is the probability that the spinner will land on a number that is not between 16 and 25, inclusive?
The probability that the spinner would land on a number that is not between 16 and 25 as required in the task content is; 13 / 15.
What is the probability that the spinner would land on a number that is not between 16 and 25?It follows from the task content that the probability that the spinner would land on a number that is not between 16 and 25, inclusive be determined.
Since the spinner contains 1 through 75, the number of event in the sample space is; 75 events.
Also, the number of events between 16 and 25, inclusive is; 10.
Therefore, the number of events outside 16 through 25 is; 75 - 10 = 65.
Therefore, the required probability that the spinner would land on a number that is not between 16 and 25 is;
= 65 / 75
= 13 / 15.
Therefore, the required probability is; 13 / 15.
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Answer:
Step-by-step explanation:
Which ordered pair in the form (a, b) is a solution of this equation?
4a - 5b = 24
L
Answer: (6, 0)
Step-by-step explanation:
Plug each coordinate in and see if the equation holds true.
At (6,0), [tex]4(6)-5(0)=24[/tex].
So (6, 0) is a solution of the equation.
Triangle ABC is similar to Triangle MPN. Find x and y. AB=15. BC=18. AC=9. I need this answer ASAP
The value of x and y in the similar triangles are 10 and 12 respectively.
What are similar triangles?Two triangles are similar if they have the same ratio of corresponding sides and equal pair of corresponding angles.
In other words, similar triangles are the triangles that have corresponding sides in proportion to each other and corresponding angles equal to each other
The triangles ABC and MPN are similar triangles.
Therefore,
∠A = ∠M
∠B = ∠P
∠C = ∠N
Hence, let's find x and y using the proportion as follows:
[tex]\frac{AB}{MP}=\frac{BC}{PN}=\frac{AC}{MN}[/tex]
Hence,
PN = y
MP = x
Therefore, let's find x
[tex]\frac{9}{6}=\frac{15}{x}[/tex]
cross multiply
9x = 90
x = 90 / 9
x = 10
Let's find y
[tex]\frac{9}{6}=\frac{18}{y}[/tex]
cross multiply
9y = 108
y = 108 / 9
y = 12
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Please help I was sick and missed out on class.Thank you
The slope is -5/3
From the question, we have
slope, m = change in y/change in x
= (-6+1)/(8-5)
=-5/3
The slope, m, is a measure of how steep a line is. Sometimes, the gradient of a line is referred to as its slope. A line's y-intercept, ab, denotes the y-coordinate of the location where the line's graph crosses the y-axis.
Slope of a Line :
A line's slope in mathematics is defined as the ratio of the change in the y coordinate to the change in the x coordinate.
Both the net change in the y-coordinate and the net change in the x-coordinate are denoted by y and x, respectively.
As a result, m = change in y/change in x = y/x is the formula for the change in y-coordinate with respect to the change in x-coordinate.
where "m" represents a line's slope.
The line with m as the slope, m and c as the y-intercept is the graph of the linear equation y = mx + c. The values of m and c are real integers in the slope-intercept form of the linear equation.
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Phil shot a 73 on the golf course on Wednesday. He shot a 62 on Thursday. What is the percent of change for his scores?
Answer: 13500%
Step-by-step explanation:
73+62=135
135 to make a percentage you would multiply 135 times 100=13500%
I think thats right
Need help again filling in the table?
Answer:
1.y=-16
2.y=-10
3.y=-4
4.y=2
hope ut helps!
have a nice night
8. ALGEBRA Diego's Subs is offering $0.75 off its foot-long meatball sub. If this represents a 20% markdown, what is the sub's regular selling price?
A $3.25
в $4.25
C $2.75
D $3.75
The sub's regular selling price, if it represents a 20% markdown is $3.75
option D.
What is meant by cost price and selling price?The precise value that corresponds to the unit price paid is represented by the cost price. In some stock market theories, this value is utilized to establish the value of stock holdings and is used as a key determinant of profitability. The precise value that corresponds to the unit price paid is represented by the cost price.
The amount a buyer pays for a good or service is known as the selling price. Depending on the price that consumers are prepared to pay, the seller is willing to take, and how competitive the price is in relation to other companies in the market, it may change.
Given,
ALGEBRA Diego's Subs is offering $0.75 off its foot-long meatball sub.
Then, C.P-S.P= 0.75
S.P-C.P= 0.75
And also given that it represents 20% mark down.
Then,
((C.P-S.P)/C.P)×100=% mark down
((C.P-S.P)/C.P)×100=20%
(0.75×100)/C.P=20
C.P=75/20
C.P=$3.75
Therefore, the sub's regular selling price is $3.75
So, the answer is option D
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y is directly proportional to x3 When x = 10, y = 250
(a) Find a formula for y in terms of x.
Answer:
y = 0.25x³
Step-by-step explanation:
Since y is directly proportional to x³, then y = kx³, where k is a constant.
When x = 10, y = 250,
250 = k(10)³
1000k = 250
∴ k = 0.25
∴ y = 0.25x³
The quadratic expression x^2+7x+N can be factored as (x+g)(x+h)(x+g), where N, g, and h are integers.
Prod wrote that N can be equal to -18.
Eleanor wrote that N can be equal to 13.
Assuming Pod wrote that N could be equal to -18, Pod is correct.
What are Quadratic Equations?
A quadratic equation is an equation with a variable to the second power as its highest power term.
The Standard Form of a Quadratic Equation:
ax² + bx + c = 0
where:
x represents an unknown (variable)a, b, and c represent known numbers, where a ≠ 0x² + 7x - 18 = (x + 9)(x - 2) . . . . . g = 9, h = -2
There are no integer factors of 13 that add to give 7. 13 is prime, so the sum of its integer factors is 1+13 = 14.
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Hi everybody, I'm having trouble with this problem. What is 2,456.75 plus 4.75 x 32
(Please show work) Thank you!
Answer:
Step-by-step explanation:
4.75 x 32=152
2,456.75+152=2608.75
Answer:
2608.75
Step-by-step explanation:
4.75 x 32 = 152
2456.75 + 152 = 2608.75
Earn 100 points if you give right answer.
Answer:
Conveyor belt 1 is fasterStep-by-step explanation:
GivenConveyor belt1: m(x) = 157.1xFind the equation of p(x) using table.
We see it is a proportional relationship, therefore:
p(x) = kx125.6 = 2kk = 125.6/2k = 62.8Conveyor belt2: p(x) = 62.8x
As we see 157.1 > 62.8 which means conveyor 1 belt is faster.
Answer:
The conveyor belt 1 is faster.
Step-by-step explanation:
Speed of conveyor belt 1,
→ m(x) = 157.1x
Now the speed of conveyor belt 2,
→ p(x) = x
→ p(125.6) = 2x || p(188.4) = 3x
→ x = 125.6/2 || x = 188.4/3
→ [ p(x) = 62.8 ] || [ p(x) = 62.8 ]
Then the fastest conveyor is,
→ m(x) = 157.1x > p(x) = 62.8
→ 157.1x > 62.8
→ Conveyor 1 > Conveyor 2
Hence, the conveyor belt 1 is faster.
calculate the area (ignore the scribble)
Round your answer to the nearest whole number. Do not include any decimals of % signs in your answer.
In a video game, to cause damage to the final boss, you must attack him with back to back critical hits. Based on your current gear in the game, you only have a 33% chance of attacking with a critical hit.
What is the probability that your first strike will be a critical hit?
What is the probability that your first strike was not a critical hit?
What is the probability that your first strike was a critical hit but not your second strike?
What is the probability that you are able to cause damage?
What is the probability that your strike was not critical but your next 2 attacks were?
The probabilities in this problem are given as follows:
First strike is a critical hit: 33%.First strike is not a critical hit: 67%.First strike is critical and the second is not: 22%.Cause damage: 11%Not critical followed by two criticals: 7%.What are the probabilities?The probabilities for each strike are given as follows:
Critical hit: 33%.Not a critical hit: 67%, as 100 - 33 = 67.The probabilities are independent, meaning that for each trial they are the same.
Thus the probability that your first strike was a critical hit but not your second strike is obtained as follows:
P = 0.33 x 0.67 = 0.2211 = 22%. (rounded).
Damage is caused with two consecutive critical hits, hence:
p = 0.33 x 0.33 = 0.11 = 11%.
The final probability, that your strike was not critical but your next 2 attacks were, is obtained as follows:
p = 0.67 x 0.33 x 0.33 = 0.07 = 7%.
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Please help… offering a lot of points
Answer:
<ABC is bisected by ray BD, 2m<DBC = m<ABC, BC = 1/2AC
Step-by-step explanation:
ILL GIVE BRAINLIEST IF CORRECT
Answer:
(-6,4)
Step-by-step explanation:
add the equations together to equal
2y=8
y=4
now solve for x
3x+10(4)=22
3x+40=22
3x=-18
x=-6
Answer:
(-6,4)
Step-by-step explanation:
add the equations together to equal
2y=8
y=4
now solve for x
3x+10(4)=22
3x+40=22
3x=-18
x=-6
Please help with this question
Answer:
c.
Step-by-step explanation:
You want a linear combination of the given 3×3 matrices.
StrategyWe observe that the answer choices are different in most corresponding terms, so we only need to find the value of one term in order to choose the correct answer.
Linear combinationThe expression applied to the matrices is applied to corresponding terms of the matrices. That is, for ...
[tex]C = -2A +7B[/tex]
you will have ...
[tex]c_{11}=-2a_{11}+7b_{11}\\\\c_{11}=-2(4)+7(7)=-8+49\\\\c_{11}=41[/tex]
This matches choice c.
__
Additional comment
Many graphing calculators and all spreadsheets can do the necessary calculations to help you find the desired result matrix.
I need assistance with this math assignment
Answer:
t=1.33333 seconds
Step-by-step explanation:
1. We are give the the position function, s(t). We must differentiate s(t) twice in order to find the acceleration function, a(t).
s(t) = t⁶-2t⁵
Taking the power rule to differentiate s(t), we find the velocity function, v(t).
v(t) = d/dt (t⁶-2t⁵)
v(t) = 6t⁵-10t⁴
Differentiate v(t) using the power rule again to find the acceleration function, a(t).
a(t) = d/dt (6t⁵-10t⁴)
a(t) = 30t⁴-40t³
2. To find the other t value where acceleration is equal to zero, we must set a(t) to zero.
a(t) = 30t⁴-40t³ = 0
3. Algebraically solve for t. Factoring out 10t³ from a(t), we have:
10t³(3t-4)=0
Our solutions are t=0 and t=4/3.
The other value of t when acceleration is equal to zero is 4/3, or 1.33333 seconds.
Assume that adults have IQ scores that are normally distributed with a mean of 99.2 and a standard deviation 19.5. Find the first quartile Q,, which is the IQ score separating the bottom 25% from
the top 75%. (Hint: Draw a graph)
The first quartile is
86.135 is the IQ score separating the bottom 25% from the top 75%.
The number between a data set's lowest and median is known as the first quartile. We would utilize a Z table to locate it.
As we are looking on the left side of distribution, value of z-score will be negative.
z-score equation for x : [tex]z = \frac{x-M}{S}[/tex]
[tex]x = zS+M[/tex]
where x = value we're looking for
M = Mean
= 99.2
S = Standard deviation
= 19.5
z = z-score
= -0.67
Putting the value in equation,
x = -0.67*19.5 + 99.2
= -13.065 + 99.2
= 86.135
Hence, 86.135 is the IQ score separating the bottom 25% from the top 75%.
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Calculate the area of this triangle.
5 cml
13 cm
12 cm•
Answer: Area of triangle=30 cm²
Step-by-step explanation:
Let's name the triangle ABC.
Assuming these are the 3 sides of the triangle, and naming them a,b,c.
a=5 cm
b=13 cm
c=12 cm
Semi perimeter of the triangle ABC= s = (a+b+c)/2
s=(5+13+12)/2 =30/2=15.
Area of triangle ABC= √(s * (s-a)*(s-b)*(s-c)
= √(15*(15-5)*(15-13)*(15-12)
= √15*10*2*3
= √150*6
=√900
=30 cm²
Area of triangle ABC = 30 cm².
18. Vocabulary Use Distributive or Commutative to complete the definition.
According to the __________ Property of Multiplication, factors can be multiplied in any order and the product remains the same.
The correct vocabulary for the definition is Commutative.
Commutative property states that the result remains the same even if the order of the numbers are changed during operation.
For multiplication,
[tex]a*b=b*a[/tex]
Thus, the correct vocabulary for the definition is Commutative.
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Rearrange g
=
fr to make f the subject.
Answer:
f=g/rStep-by-step explanation:
divide by R
A line with a slope of -7/16 passes through the point (-16, 7). What is its equation in
slope-intercept form?
A equation of line with a slope of -7/16 passes through the point (-16, 7) is y = (-7/16)x
We know that the formula for the slope-point form of equation of line:
(y - y1) = m(x - x1)
Let (x1, y1) = (-16, 7)
and slope m = -7/16
Using above formula,
(y - 7) = (-7/16)(x - (-16))
y - 7 = (-7/16)(x + 16)
y = -7/16x - 7 + 7
y = (-7/16)x
This equation is slope-intercept form (y = mx + c) with slope -7/16 and y-intercept 0.
Therefore, a equation of line with a slope of -7/16 passes through the point (-16, 7) is y = (-7/16)x
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The graph of a quadratic function with vertex (2, 0) is shown in the figure below.
Find the range and the domain.
Write the range and domain using Interval notation.
Answer:
Domain: (-∞, +∞)
Range: [2, +∞)
Step-by-step explanation:
Domain is the "allowable x-values/inputs"
Range is the "possible y-values/outputs when the x-values in the domain are inputted".
From the graph, notice how each end of it extends infinitely to the left and to the right. This means that the domain is infinite and there are no restrictions. Writing it in interval location would look like this:
(-∞, +∞)
Also, notice how the y-values increase from the vertex but do not go below it. That suggests that the range is "lower-bounded" to the vertex, and increases infinitely. Writing it in interval location would look like this:
[2, +∞)
Look at this graph.
y
x
10
20
30
40
50
60
70
80
90
100
10
20
30
40
50
60
70
80
90
100
0
What is the equation of the line in slope-intercept form?
The slope-intercept definition of the linear function is given as follows:
y = x + 2.
What is the slope-intercept representation of a linear function?The slope-intercept representation of a linear function is obtained by the rule presented as follows:
y = mx + b.
The coefficients of the function, along with their meaning, are shown as follows:
m is the slope of the function, which is the amount by which the function changes when the input x changes by 1.b is the y-intercept of the function, which is the value of y at which the function changes the function crosses the y-axis, that is, when x = 0.For this problem, the values of these coefficients are given as follows:
b = 2, as the function crosses the y-axis at y = 2.m = 1, as when x increases by 1, y increases by 1.Hence the slope-intercept rule for the function is:
y = x + 2.
Missing InformationThe graph of the linear function is given by the image shown at the end of the answer.
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Evaluate this expression: (7 ⋅ 2) + 4^2 - 12 ÷ 4
I don't know how to figure this out
Is it possible for a number to be a product of 2, a product of 5,
and a product of 10? Explain.
The possible number is 10 which is a product of 2, 5, 10
LCM stands for "Least Common Multiple." The smallest multiple that two or more numbers share is defined as the least common multiple. It is also known as the Least Common Divisor (LCD). For example, LCM (4, 5) = 20. In this case, the LCM 20 is divisible by both 4 and 5, so 4 and 5 are referred to as the divisors of 20.
Given numbers 2, 5, 10
We have to find the number which is produced by the given numbers
Now we have to find the LCM of these numbers
LCM of 2, 5, 10
2 = 2 x 1
5= 5 x 1
10 = 2 x 5
= 1x 2 x 5
= 10
The LCM of 2,5,10 is 10
Therefore 10 is the required number which is a product of 2, 5, 10
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Find the quotient. 5 divided by 1/4
Answer:
5 : (1/4) = 201 = 20
Step-by-step explanation: