Given
The statement is "three times three".
To find:
The value of given statement.
Solution:
We know that the multiplication sign "×" is used for "times".
The given statement is "three times three".
So, the mathematical expression for the given statement is:
three times three = 3 × 3
= 9
Therefore, the value of three times three is 9.
kali runs 12 laps around a track each day. Each lap around the track is 400 meters. How many days will it take Kali to run the total of 12 kilometers?
Answer: 2.5 days
Step-by-step explanation:
First we should convert 12 kilometers to meters so that is 12000 meter. Now we know that she runs 12 laps each day and each lap is 400 meters so lets find out how much she runs in one day. 12 laps*400meters= 4800 meters
So an easy way to figure out how many days is to divide 4800 meters she runs each day from the total 12,000 meters she needs to run so 12,000/400=2.5.
It will take kali a total of 2.5 ( two and a half days) to run 12000 meters or 12 kilometers
A landscaper is designing a display of flowers for an area in a public park. The flower seeds will be planted at points that lie on a circle that has a diameter of 8 feet. the point where any seed is planted must be 2 feet away from the seeds on either side of it. what is the maximum number of flower seeds that can be planted using the design?
after planting the flower seeds the landscaper has 20 seeds left over. the landscaper wants to plant all of the remaining seeds in another circle so that the seeds are 2 feet apart. what is the diameter of the smallest circle that the landscaper can use to plant all of the remaining seeds?
The z-score for P(? ≤ z ≤ ?) = 0.60 is approximately 0.25.
The z-score for P(z ≥ ?) = 0.30 is approximately -0.52.
How to find the Z score
P(Z ≤ z) = 0.60
We can use a standard normal distribution table or a calculator to find that the z-score corresponding to a cumulative probability of 0.60 is approximately 0.25.
Therefore, the z-score for P(? ≤ z ≤ ?) = 0.60 is approximately 0.25.
For the second question:
We want to find the z-score such that the area under the standard normal distribution curve to the right of z is 0.30. In other words:
P(Z ≥ z) = 0.30
Using a standard normal distribution table or calculator, we can find that the z-score corresponding to a cumulative probability of 0.30 is approximately -0.52 (since we want the area to the right of z, we take the negative of the z-score).
Therefore, the z-score for P(z ≥ ?) = 0.30 is approximately -0.52.
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Help!!!! If you wanted to model movements with both of the robot's arms in the air, what function
would you choose as the original model? Could you still do the same transformations
with this new equation?
Answer:
f(x)=x^2
Step-by-step explanation:
if you wanted have a function where both of the robot's arms are in the air the function could be x to the power of any even number such f(x)=x^2, f(x)=x^4, f(x)=x^6, or even f(x)=x^10. And you could still do the same transformations with these equations.
find the number of outcomes in the complement of the given event. out of 267 books in a bookcase, 178 are nonfictional.
The number of outcomes in the complement of the given event is 89. There are 89 fictional books in the bookcase.
The complement of a given event is the set of all outcomes that are not included in the given event. In this case, the given event is the number of nonfictional books in a bookcase. The complement of this event would be the number of fictional books in the bookcase.
To find the number of outcomes in the complement of the given event, we can subtract the number of nonfictional books from the total number of books in the bookcase.
Number of outcomes in the complement of the given event = Total number of books - Number of nonfictional books
= 267 - 178
= 89
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Solve: | x-3 | + 2 = −3
|x−3|+2=−3|x-3|+2=-3
Move all terms not containing |x−3||x-3| to the right side of the equation.
|x−3|=−5
Remove the absolute value term. This creates a ±± on the right side of the equation because |x|=±x|x|=±x.
x−3=±(−5)
Set up the positive portion of the ± solution.
x−3=−5
Move all terms not containing x to the right side of the equation.
x= −2
Set up the negative portion of the ± solution.
x−3 =5
Move all terms not containing x to the right side of the equation.
x=8
The solution to the equation includes both the positive and negative portions of the solution.
x=−2, 8
This graph shows the number of miles a freight train travels over a period of time.
Freight Train Travel Rate
What is the slope of the line?
Use the number pad to enter your answer in the box
4. Which value of n makes the equation 6.4n – 1.2 + 3n + 8.2 = 19.22 true?
what is 0x3d (base 16) in decimal (base 10).
The hexadecimal number 0x3d is equal to 61 in decimal (base 10).
To convert the hexadecimal number 0x3D to decimal (base 10), we need to understand the positional system of both bases. In hexadecimal, each digit represents a power of 16, starting from the rightmost digit. The digits range from 0 to 9, and then from A to F, where A represents 10 and F represents 15, In hexadecimal (base 16) representation, each digit can have values from 0 to 15. The digits from 0 to 9 represent their respective values, and the letters A to F represent the values 10 to 15.
To convert 0x3d to decimal, we can break down the number as follows:
0x3d = (3 * 16^1) + (13 * 16^0)
Simplifying the expression:
0x3d = (3 * 16) + 13
0x3d = 48 + 13
0x3d = 61
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im going give 60 point please answer The temperature inside the command center is 21 degrees C. The temperature outside the command center is -12 degrees C. What is the difference in temperature
Answer:
33 degrees
Step-by-step explanation:
It is 21 degrees inside the command center and negative 12 degrees outside.
You want to find the difference between these, which means you want to subtract.
That will look like:
21 - (-12) = ?
since you have two negative signs next to each other, they will cancel each other out.
Our new equation:
21 + 12 =
21 + 12 = 33
The difference between these two temperatures is 33 degrees.
Lee drew five rectangles as shown on this coordinate grid
Given:
Lee drew five rectangles as shown on this coordinate grid .
To find:
The correct statement.
Solution:
From the given diagram, it is clear that,
Dimensions of rectangle x are 6 by 3 units.
Dimensions of rectangle A are 7 by 3 units.
Dimensions of rectangle B are 6 by 3 units.
Dimensions of rectangle C are 3 by 6 units.
Dimensions of rectangle D are 6 by 4 units.
Dimensions of rectangle x and B are same and clearly it can be translation or rotation about the origin.
Dimensions of rectangle x and C are same but only rotation is not sufficient to get rectangle C from rectangle x.
Dimension of rectangle x, A and D are different, so they are not congruent and we cannot get rectangle A and D by rotation, reflection and translation.
Therefore, the correct option is B.
What value of g makes the equation true?
0.25 (g+1.5) = 2
• -1
• 2
• 6.5
• 9.5
Answer:
g= 6.5
Step-by-step explanation:
O.25(g+1.5) = 2
(g+1.5) = 2/0.25 divide both sides with 0.25
g+1.5 = 8
g = 8-1.5
g = 6.5
the metric system contains how many basic units of measure
The metric system contains seven fundamental units of measure. The seven base units of measure in the metric system are length, mass, time, electric current, temperature, luminous intensity, and amount of substance.
These base units are used to measure different types of physical quantities in the metric system.What is the metric system?The metric system is a measuring system that is used throughout the world, and it is based on the decimal system. I
t is easy to use because it is based on powers of ten. This means that each unit is ten times larger than the previous unit and ten times smaller than the next unit.The International System of Units (SI), also known as the metric system, is a globally accepted system of measurement that is used to measure different physical quantities.
It consists of a set of fundamental units of measure, derived units, and prefixes that are used to express the units of measure.The metric system is a standard system of measurement that is used worldwide, and it has become the standard system of measurement for science, engineering, and commerce.
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What is the normal body temperature for healthy humans? A random sample of 130 healthy human body temperatures yielded an average temperature of 98.25 degrees and a standard deviation of 0.73 degrees. a) Find a 99% confidence interval for the average body temperature of healthy peopl b) Does the interval you obtained in part a) contain the value 98.6 degrees, the accepted average temperature cited by physicians? What conclusions can you draw?
Answer:
The average body temperature of healthy people is unlikely to be 98.6 degrees Fahrenheit.
a) The 99% confidence interval for the average body temperature of healthy people is approximately (98.085, 98.415).
b) The accepted average temperature of 98.6 degrees is not within the range of the estimated average body temperature at the 99% confidence level.
Step-by-step explanation:
To find the 99% confidence interval for the average body temperature of healthy people, we can use the formula:
Confidence Interval = Sample Mean ± (Critical Value * Standard Error)
First, let's calculate the critical value for a 99% confidence level. Since the sample size is large (n = 130), we can use the Z-table. The critical value corresponding to a 99% confidence level is approximately 2.576.
Next, we need to calculate the standard error using the formula:
Standard Error = Standard Deviation / sqrt(sample size)
Plugging in the given values:
Sample Mean = 98.25 degrees
Standard Deviation = 0.73 degrees
Sample Size = 130
Standard Error = 0.73 / sqrt(130) ≈ 0.064
Now we can calculate the confidence interval:
Confidence Interval = 98.25 ± (2.576 * 0.064)
Confidence Interval ≈ 98.25 ± 0.165
The 99% confidence interval for the average body temperature of healthy people is approximately (98.085, 98.415).
b) To determine if the interval contains the value 98.6 degrees (the accepted average temperature cited by physicians), we compare it to the interval. Since 98.6 degrees falls outside the confidence interval (98.085, 98.415), we can conclude that the accepted average temperature of 98.6 degrees is not within the range of the estimated average body temperature at the 99% confidence level.
Based on the provided data and calculations, we can conclude that the average body temperature of healthy people is unlikely to be 98.6 degrees Fahrenheit.
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What is the equation of the following line written in general form? (The y-intercept is 7.)
y
(-2.1)
Answer:
\({ \tt{slope = \frac{7 - 1}{0 - ( - 2)} = 3 }} \\ \\ { \tt{y = mx + c}} \\ { \boxed{ \bf{y = 3x + 7}}}\)
From a point 55 feet away from the foot of a tower, the angle of elevation of the top of the
tower is 60°. What is the height of the tower?
Answer:
The height of the tower is approximately 95.263 feet
Step-by-step explanation:
The given parameters are;
The distance from the foot of the tower where the angle of elevation is measured = 55 feet
The angle of elevation to the top of the tower from a point 55 feet from the foot of the tower, θ = 60°
Therefore, by trigonometric ratio, we have;
\(tan(\theta )= \dfrac{Opposite \ leg \ length}{Adjacent \ leg \ length} = \dfrac{The \ height \ of \ the \ tower}{Distance \ from \ foot \ of \ tower}\)
Therefore, we have;
\(tan(60 ^{\circ} ) = \dfrac{The \ height \ of \ the \ tower}{55 \ feet}\)
The height of the tower = 55 feet × tan (60°) = 55 × √3 feet ≈ 95.263 feet.
I need the answer. Thank you
Answer:
Step-by-step explanation:
2x-3y = 14 , 5x + 6y = -19 make 2(2x-3x=14) = 4x - 6y = 28. Then just add them u get 9x = 9 then x= 1 put in the x value to get y , y = -4 and I think it’sA just on earth solution
If = 7, then x must be _____. 7 14 49 Irrational
Answer:
x is 49
Step-by-step explanation:
Answer:
49
Step-by-step explanation:
i just took the test
how many solutions?
Answer:A) no solutions
Step-by-step explanation:
1) set both problems equal to each other
2) subtract four from each side
3) subtract 2x from each side
4) 10 does not equal 0
Answer:
No solution
Step-by-step explanation:
As soon as you minus the equations from each other, the y's and x's cancel out therefore there is no solution
A gym's membership in 2012 was 9,300. The current membership is 2,800. Which expression can be used to find the percent of change? WHAT EXPRESSION NOT WHAT THE PERCENT IT.
The expression that can be used to find the percent of change between the gym's membership in 2012 and the current membership is ((Current Value - Initial Value) / Initial Value) \(\times\) 100.
To find the percent of change between the gym's membership in 2012 and the current membership, we can use the following expression:
Percent of change = ((Current Value - Initial Value) / Initial Value) \(\times\) 100
In this case, the initial value is 9,300 (membership in 2012), and the current value is 2,800 (current membership).
Substituting these values into the expression, we get:
Percent of change = ((2,800 - 9,300) / 9,300) \(\times\)100
Simplifying the expression further, we have:
Percent of change = (-6,500 / 9,300) \(\times\) 100
Therefore, the expression that can be used to find the percent of change between the gym's membership in 2012 and the current membership is ((Current Value - Initial Value) / Initial Value) \(\times\)100. This formula calculates the relative difference between the initial and current values and expresses it as a percentage.
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Jesse and Amir were assigned the same book to read. Jesse started reading on Saturday, and he is
reading 30 pages a day. Amir didn't start until Sunday, but he is reading 35 pages a day.
Picture has questions
Question 1 answer : 210
Answer:
brainliest plss
Step-by-step explanation:
1. y = 35x
2. y = 30x + 1
3. y = 35x
y = 30 x + 1
4. Its more convenient to substitute y because It's easier.
35x = 30(x + 1)
5. 35x = 30x + 1
35x = 30x + 30
35x -30x = 30
5x = 30
x = 6 (30/5 = 6)
35 x 6 = 210 (y)
6. Both people have read 210 pages and it takes amir 6 days to catch up.
How does this graph change between point D and point G?
5-G
554
32
3-
2
1
-5-4-3-2-1
-2-
3
-4
-5
1 2 3 4 5 x
The graph increases.
O The graph decreases.
The graph incro
Answer:
a
Step-by-step explanation:
hope that helps
Which expression is equivalent to this polynomial?
16x2 + 4
A.
(4x + 2i)(4x − 2i)
B.
(4x + 2)(4x − 2)
C.
(4x + 2)2
D.
(4x − 2i)2
Answer:
A.
Step-by-step explanation:
C and D do not create any x² terms when doing the multiplications. so, they are out.
B stands for (a+b)×(a-b) = a² - b².
so, that would give us a "-4" at the end and is not fitting to the "+4" term at the end of the original expression.
that leaves us with A.
let's verify :
(4x+2i)(4x-2i)
it follows the same rule as B :
(a+b)(a-b) = a² - b²
a = 4x
b = 2i
you remember, i = sqrt(-1).
so, we get
(4x)² - (2i)² = 16x² - 4×(sqrt(-1))² = 16x² - 4×(-1) = 16x²+4
bingo !
Answer:
Step-by-step explanation:
the answer is A
Ivana Chase has a gross monthly income of $5,400. She pays 16% in federal and state taxes, puts aside 12% of her income to pay off her school loan, and puts 5% of her income aside for savings. She is considering an apartment that will rent for $1,700 per month. How much will remain after she pays for the rent and other expenses?
Answer:
$82Step-by-step explanation:
let's start by finding (16+12+5)% of 5,400
33% of 5,400 is 1,782
now lets subtract 1,700 from 1,782
=$82
12 divided by 4/3 =
Answer:
9
Step-by-step explanation:
Answer:
9
Step-by-step explanation:
Hope this helps!
In this picture, m∠AOC = 68° and m∠COD = (2x + 7)°. If ∠AOC and ∠COD are complementary angles, then what is the value of x?
If ∠AOC and ∠COD are complementary angles, then the value of x is 7.5
Calculating the value of x?From the question, we have the following parameters that can be used in our computation:
m∠AOC = 68° and m∠COD = (2x + 7)°.
If ∠AOC and ∠COD are complementary angles, then the value of x is calculated as
AOC + COD = 90
Substitute the known values in the above equation, so, we have the following representation
2x + 7 + 68 = 90
So, we have
2x = 15
Divide by 2
x = 7.5
Hence, the value of x is 7.5
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is 3/10 = 15/60 a equivalent ratios?
Answer: No.
Step-by-step explanation:
3 x 5 = 15,
but 10 x 5 = 50.
In order for the ratios to be equivalent, they would have to be written like this:
3/10 = 15/50
Therefore, it is not equivalent.
Hope this helps!
10. What is the length of RS, when R is the midpoint of PS?
PR: 7x - 5
RS: 4(x + 1)
A. 3
B. 16
C. 23
D. 32
The length of line RS is 16
What is a line segment?LA line segment can be defined as the part of a straight line bounded by two different end points, and also contains every point on the line that is between its endpoints.
We have that;
PR = 7x - 5RS = 4(x + 1) = 4x + 4But,
PR = RS
Substitute the formula
7x - 5 = 4x + 4
collect like terms
7x - 4x = 4 + 5
3x = 9
x = 9/ 3
x = 3
RS = 4x + 4 = 4(3) + 4 = 12 + 4 = 16
Thus, the length of line RS is 16
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The model has 75 of 100 parts shaded to represent 0.75.
A model divided into 100 parts. 75 are shaded gray.
Amena models the solution to 0.75 – 0.20 by shading in black each of the parts she is subtracting from 0.75. Which models the solution?
A model divided into 100 parts. 75 are shaded gray. 2 are shaded black.
A model divided into 100 parts. 75 are shaded gray. 20 are shaded black.
A model divided into 100 parts. 55 are shaded gray. 20 are shaded black.
A model divided into 100 parts. 73 are shaded gray. 2 are shaded black.
Answer:
A model divided into 100 parts. 75 are shaded gray. 2 are shaded black.Step-by-step explanation:
i used a calculator to divide it by 75 witch gave me .75
Please help me. I don’t know the answer.
Step-by-step explanation:
number 2)
3√2/3√4=
=3√2/3×2
=3√2/6
=3√2/6 ×3/3
=1√2/2
=√2/2
Please help if you can.
Answer:
I would sat b
Step-by-step explanation: