Answer:
84%
Step-by-step explanation:
Using the formula of z=(x-mean)/standard deviation. You get a z score of -1. Given the Empirival rule, 68% of all the values fall within 1 standard deviation. So the remaining 32% of values fall outside of this range. Since we have a negative 1, we only care about the lower half or 16%. In context of the problem this means that 16% of the all lizards live less than 2.5 years, so since the questions asks the opposite, we just subtract that value from 100%. 100-16=84
what is the area of a square if the side is 2cm
Answer:
The area of the square if the side is 2cm, It would be 4cm, because 2 times 2 is 4. Hope this helps!
Step-by-step explanation:
You would do 2 times 2 to get 4cm.
Answer:
[tex]4cm^{2}[/tex]
Step-by-step explanation:
The formula for working out the area of a square/rectangle is Length multiplied by the width. To work this out you would simply multiply 2 by 2, which gives you 4. This is because a square would have 4 identical sides and that the formula is length multiplied by the width.
1) Multiply 2 by 2.
[tex]2*2=4cm^{2}[/tex]
In a survey of 20 college students, it was found that 9 were taking an English class, 3 were taking a math class, and 2 were taking both English and Math. How many students were taking a math class only? Please show work.
A) 10
B) 1
C) 13
D) 11
Answer:
1
Step-by-step explanation:
3-2=1
Answer:
The answer is B) 1.
Step-by-step explanation:
Let’s use a Venn diagram to solve this problem.
We know that 9 students are taking an English class and 3 are taking a math class. We also know that 2 students are taking both classes. Therefore, we can fill in the Venn diagram as shown above.
To find the number of students taking a math class only, we need to subtract the number of students taking both classes from the total number of students taking a math class. That is:
Math only = Total Math - Both
Math only = 3 - 2
Math only = 1
Therefore, 1 student is taking a math class only.
To know more about please go through the following link,
https://brainly.com/question/15047063
What is the approximate difference in tenths between
10 and
15?
sqrt 10 = 3.16
sqrt 15 = 3.87
So the difference would be 0.7
Answer:
0.7
Step-by-step explanation:
(-3, 5) is located in _____.
A.Quadrant I
B.Quadrant II
C.Quadrant III
D.Quadrant IV
x+4y=16
5x+4y=0
need to solve systems of equations by graphing
Answer:
Step-by-step explanation:
(-4,5)
x= -4 y=5
A teen magazine began its circulation of 500,000 in its first year. Since then, the circulation has increased an average of 33,388 per year. Suppose that the magazine began in 1944, and the trend continues. In what year will the circulation reach 3,000,000? Suppose that the magazine began in 2000, and the trend continues. What is the circulation in 2006? Show work. PLEASE HELP! NOBODY IS ANSWERING MY QUESTIONS!
Answer:
Step-by-step explanation:
First subtract 3000000 and 50000, which equals 2500000.
Then divide 2500000 and 33388, in order to find the number of years, which equals: 74.877201.
Add 74.877201 to 1944, to find out what year the circulation will reach 3 million, the answer is 2018.877. Round up to the nearest year, so 2019.
In order to find the circulation in 2006, first subtract 2006 and 1944, which equals 62 years, then multiply 62 years by 33388 , which equals 2070056. Add 500000 to 2070056. The answer is 2570056.
The measure of central angle RST is radians. What is the area of the shaded sector? 4Pi units squared
8Pi units squared
16Pi units squared
20Pi units squared
Answer:
"[tex]8\pi[/tex] units squared"
Step-by-step explanation:
The image of the circle is attached.
The shaded area of the circle is basically HALF of the whole circle. If we can get the area of the circle, we will halve it, to get our answer for area of shaded region.
Area of circle is given as:
[tex]A=\pi r^2[/tex]
Where
A is area
r is the radius
Looking at the pic, the radius is "4", so we substitute and find area of circle:
[tex]A=\pi r^2\\A=\pi (4)^2\\A=\pi (16)\\A=16\pi[/tex]
THe shaded area is HALF of that, so:
Area of Shaded = [tex]\frac{16\pi}{2}=8\pi[/tex] sq. units.
Answer is "[tex]8\pi[/tex] units squared"
Functions of the form y = abx, where b > 0 and b ≠ 0, are called ____ functions.
Answer:
Exponential function.
Step-by-step explanation:
We are given that a function of the form
[tex]y=ab^x[/tex]
Where [tex]b\neq 0[/tex] and b>0
Exponential function: The function is of the form
[tex]y=b^x[/tex]
Where b is a positive constant and greater than 0 and x is any real number.
The given function satisfied the define of exponential function.
Hence, the function of the form [tex]y=ab^x[/tex]
Where b>0 and [tex]b\neq 0[/tex] are called exponential function.
Functions of the form y = ab^x, where b > 0 and b ≠ 0, are called Exponential Functions. They are widely used in mathematical and scientific contexts.
Explanation:
Functions of the form y = abx, where b > 0 and b ≠ 0, are called Exponential Functions. These functions represent a wide range of phenomenons in mathematics and natural science. An exponential function represents a quantity which is increasing or decreasing at a rate proportional to the magnitude of the quantity itself. For example, a savings account with an interest rate of 2% would exhibit exponential growth since the magnitude of the account balance would increase at a rate proportional to the balance itself.
Learn more about Exponential Function here:https://brainly.com/question/37289664
#SPJ3
Y/8=5 y= ? Please help me
Answer: y Y/40 should be your answer
Answer:
Y=40
Step-by-step explanation:
40/8=5
I need major help I know it’s not 2, 1, and .25 for sure please help
Answer:
a = 9
b = 3
c = 1
Step-by-step explanation:
hope it helps
Using Trig to find angles !! help please
56.1°.
Step 1 The two sides we know are Opposite (300) and Adjacent (400).
Step 2 SOHCAHTOA tells us we must use Tangent.
Step 3 Calculate Opposite/Adjacent = 300/400 = 0.75.
Step 4 Find the angle from your calculator using tan-1
What is SOH CAH TOA?"SOHCAHTOA" is a helpful mnemonic for remembering the definitions of the trigonometric functions sine, cosine, and tangent i.e., sine equals opposite over hypotenuse, cosine equals adjacent over hypotenuse, and tangent equals opposite over adjacent, (1) (2).
Please check the attached file for a brief answer.
Learn more about trigonometric at
https://brainly.com/question/24349828
#SPJ2
PLZ HELP SOS!!!!!!!!
solve for x
thank you!!!!!!!!!!
Answer:
23. x = 11.1 // 24. x = 21.4
Step-by-step explanation:
23.
Observe which sides are known and needed. 15 is the hypotenuse and x is the adjacent side. The trigonometric function that connects both the hypotenuse and the adjacent side is cosine. Using the degree, set up the equation as so: cos(42) = x/15. (Because cosine is adjacent over hypotenuse, x is over 15). Isolate x to solve for it by multiplying both sides by 15. cos(42) * 15 is 11.1
24.
Observe which sides are known and needed. x is the hypotenuse and 11 is the opposite side. The trigonometric function that connects both the hypotenuse and the opposite side is sine. Using the degree, set up the equation as so: sin(31) = 11/x. (Because sine is opposite over hypotenuse, 11 is over x). Isolate x to solve for it by multiplying both sides by x and then dividing both sides by sin(31). 11 divided by sin(31) is 21.4
Three coins are tossed in the air, one at a time. What is the probability that the third coin will be heads?
Answer:
1/2
Step-by-step explanation:
We only care about the third coin
we could get heads or tails on the third flip
P (third coin will be heads) = outcome heads / total
=1/2
Answer:
½
Step-by-step explanation:
Trials are independent
If the coin is unbiased,
P(T) = P(H) = ½ for every trial
Does the rule y= -3(3)x represent a linear or an exponential function?
Answer:
There's no exponent, so this is a linear function.
Step-by-step explanation:
We can simplify:
y = -3(3)x
y = -9x
Here we can see this is simply linear: there is just an x^1, and no other exponent.
The graph shows the high temperatures on july 4th over a 15 year period. What is the approximate probability that next year’s temperature (year 16) will be in the 90s?
Answer:
it’s 0.53
Step-by-step explanation:
wigger fart
To calculate the probability of the temperature being in the 90s next year, you take the number of times the temperature was in the 90s over the past 15 years and divide by 15. This gives the probability, but it is just an estimate as weather is unpredictable.
Explanation:To determine the probability that next year’s temperature will be in the 90s, you firstly need to know the number of times the temperature was in the 90s over the past 15 years. After that, you divide that by the total number of years observed (15 years). This gives a fraction or a decimal which represents the probability.
For instance, if the temperature was in the 90s for 7 out of the 15 years, the probability would be 7/15, or approximately 0.47.
Please remember, this result is an estimate as weather is influenced by many unpredictable factors. Therefore, the past trends cannot guarantee future conditions but it gives a rough estimate.
Learn more about Probability here:https://brainly.com/question/22962752
#SPJ2
Mr.Meyer draws a shape on the board.It has 4 sides of equal length and 4 right angles.List all of the names possible to describe the shape Mr.Meyer drew.
Answer:
The Quadrilateral namely as
1)Square .
2)Rhombus.
Step-by-step explanation:
Given :
Four sides and 4 angels are equal
To find :
Which quadrilateral are possible?
Solution:
We know that 4 sides are equal and 4 right angles are of square
And It ,s properties are acquired by the shape Rhombus
with equal sides and opposite side are parallel to each other and angles are of right angle (90 degrees).
And many Quadrilaterals have right angle but not 4 equal sides
(Pic of rhombus is shown below)
Which formula gives the x-coordinates of the maximum values for y = cos(x)?
k(pi) for any integer k
k(pi) for k= 0, +/-2, +/-4...
k(pi)/2 for any positive integer k
k(pi)/2 for k= k= 0, +/-2, +/-4...
Answer:
the correct answer is B i got it right on my test
Step-by-step explanation:
Answer:
The answer is B) k(pi) for k= 0, +/-2, +/-4,...
Step-by-step explanation:
edg
what is the area of a triangle with 11 1/2 height and 14ft base
Answer:
80.5 feet
Step-by-step explanation:
The formula for a triangle is 1/2 base times height. So it is 1/2 of 14 times 11 1/2. Which is also equal to 7 times 11 1/2. That equals 80.5. I hope this helps! Please mark me brainliest!
I had 1 apple and then I ate it. How many do I have now?
0
1-1=0
So u have 1 then you take one away so it will get u 0 apples left
Answer:
0 apples in total,
Step-by-step explanation:
You ate the apple, so most would consider that you have 0 apples left.
one minus one is equal to zero in this case.
A group of adults plus one child attend a movie at Cineplex 15. Tickets cost $9 for adults and $6 for children. The total cost for the movie is $78. Write an equation to find the number of adults in the group.
Alyssa is an ecologist who studies the change in the fox population of the Arctic circle over time. She observed that the population loses \dfrac{1}{18} 18 1 start fraction, 1, divided by, 18, end fraction of its size every 222 months. The population of foxes can be modeled by a function, PPP, which depends on the amount of time, ttt (in months). When Alyssa began the study, she observed that there were 185{,}000185,000185, comma, 000 foxes in the Arctic circle. Write a function that models the population of the foxes ttt months since the beginning of Alyssa's study.
To model the population of foxes t months since the beginning of Alyssa's study, we can use the equation P(t) = P(0) - (1/18t), where P(0) is the initial population of 185,000 foxes.
Explanation:To write a function that models the population of foxes t months since the beginning of Alyssa's study, we need to determine the rate at which the population decreases over time. Given that the population loses 1/18 of its size every 22 months, we can use this information to develop an equation. Let P(t) represent the population of foxes at time t, and let P(0) be the initial population of 185,000 foxes.
Since the population loses 1/18 of its size every 22 months, the rate of decrease can be calculated as 1/18 per 22 months. This can be written as -1/18 per month or -1/18t per month. Hence, the equation that models the population is P(t) = P(0) - (1/18t).
Jason is entering a weight lifting contest. Gurrently, his maximum bench press weight is 105 pounds. If he increases the weight by 7 pounds each week, What is the maximum weight he be able to bench press after 13 weeks?
Answer:
196 lbs is the maximum weight.
Step-by-step explanation:
7 × 13 = 91 lbs (this is the amount he added by the 13th week)
91 + 105 = 196 lbs (this is the amount he added and the amount he had. giving us the finished product.)
Calculate Jason's maximum bench press weight after 13 weeks with a weekly increase of 7 pounds. Jason will be able to bench press a maximum weight of 196 pounds.
Jason's maximum bench press weight: 105 pounds
Weekly increase: 7 pounds
Number of weeks: 13
To calculate the maximum weight after 13 weeks:
First week: 105 + 7 = 112 pounds
Second week: 112 + 7 = 119 pounds
Continue this pattern for 13 weeks.
Result: After 13 weeks, Jason will be able to bench press a maximum weight of 196 pounds.
please help!! urgent
Answer:
D, 342 meters
Step-by-step explanation:
We can use the definition of sines to solve the problem. Remember, sine = opposite leg over the hypotenuse of the triangle.
[tex]sin(<Q)= \frac{RS}{QR} \\[/tex]
Then, we can substitute QR for 1,000 and [tex]<Q[/tex] for 20 degrees and solve like so:
[tex]sin(20) = \frac{RS}{1,000}[/tex]
[tex]RS = 1000 (sin(20))\\\ RS = 1000(0.342)\\\\RS= 342.0201[/tex]
Rounding that number, we get 342 meters. Hope this made sense!
Answer: D. 342 m
Step-by-step explanation:
The given triangle is a right angle triangle since angle S is 90°.
From the given right angle triangle,
QR represents the hypotenuse of the right angle triangle.
With m∠Q as the reference angle,
QS represents the adjacent side of the right angle triangle.
RS represents the opposite side of the right angle triangle.
To determine RS, we would apply
the Sine trigonometric ratio.
Sin θ, = opposite side/hypotenuse. Therefore,
Sin 20 = RS/1000
RS = 1000Sin20 = 1000 × 0.342
RS = 342 m
The circle below has a center H. Suppose that m FG=42. Find the following.
The measure of angle FHG = 42 degrees. This is the same as the arc length.
The measure of angle FEG = 21 degrees. This is half the value of the arc length.
The measure of angles are
[tex]m < FHG= 42\\m < FEG= 21 \\[/tex]
Central angle :Central angle is equal to intercepted arc.
Also, inscribed angle is equal to half of the intercepted arc.
From the given diagram ,
Central angle is angle FHG.
Given that measure of Arc FG = 42 degrees
Central angle = intercepted arc
Central angle is same as intercepted arc.
[tex]m < FHG= m (arc FG)\\m < FHG= 42[/tex]
Inscribed angle is equal to half of the intercepted arc.
To find inscribed angle , we divide the intercepted arc by 2.
[tex]m < FEG=\frac{1}{2} (arc FG)\\m < FEG=\frac{1}{2} (42)\\m < FEG= 21[/tex]
The following angles are
[tex]m < FHG= 42\\m < FEG= 21 \\[/tex]
Learn more information about 'Angles' here
brainly.com/question/2278895
Can someone help me with this question
There is a rule for functions:
One input(x-value) can only have one output(y-value).
If one input has more than one output, it's not a function.
(This doesn't apply to outputs, one output can have more than one input and still be a function)
Option 1: It is not a function because the inputs 9 and 10 have more than one output
Option 2: It is not a function because the input 3 has more than one output
Option 3: It is a function because each input has only one output
Option 4: It is not a function because the input 5 has more than one output
Find the mean and the median of the data set: 9, 7, 7, 4, 18 , 8, 5, 2,
What's the definition of statistics?
Answer:
statistics is defined as:
the branch of mathematics dealing with data collection, organization, analysis, interpretation and presentation.
Final answer:
Statistics is a mathematical discipline focused on data collection, analysis, interpretation, and presentation. It includes both the process of dealing with numerical data and the resulting numerical facts used to make decisions. The field consists of descriptive statistics and statistical inference, which help understand and compare data for informed decision-making.
Explanation:
Statistics is a branch of mathematics that deals with the collection, analysis, interpretation, and presentation of numerical data. It encompasses the entire process from gathering the data to drawing conclusions based on the numerical information obtained. Statistics can also refer to the numerical facts themselves, which are derived from these processes. The field is divided into two key areas: descriptive statistics, which summarizes data from a sample using indexes such as mean or standard deviation, and statistical inference, which makes predictions about a population based on a sample of data.
Statistics are not confined to mere numbers; they represent a comparison and understanding of numerical data. These comparisons help us make informed decisions in various fields, from public policy to medicine. For example, statistics can tell us the percentage increase in a population over a decade, enabling policymakers to plan resources accordingly. Statistics is integral to our daily lives, even though many may not realize its pervasive influence.
Help please!
Image Attached
Answer:
97.92m
Step-by-step explanation:
132.65-34.73=97.92
It should be the answer
Sorry if its wrong
Can you guys please help me out
Answer:about 54%
Step-by-step explanation:
What is the volume of the pyramid?
12StartRoot 3 EndRoot cm3
16StartRoot 3 EndRoot cm3
24StartRoot 3 EndRoot cm3
32StartRoot 3 EndRoot cm3
Answer:
[tex]16\sqrt{3}[/tex] [tex]cm^{3}[/tex]
Step-by-step explanation:
I think your question missed key information, allow me to add in and hope it will fit the orginal one. Please have a look at the attached photo,
A solid oblique pyramid has an equilateral triangle as a base with an edge length of 4StartRoot 3 EndRoot cm and an area of 12StartRoot 3 EndRoot cm2.
What is the volume of the pyramid?
My answer:
As we know, The volume of a pyramid = [tex]\frac{1}{3}[/tex]base area × its height
Given:
Side lenght of the base is; [tex]4\sqrt{3} cm[/tex]=> The area of the base is [tex]12\sqrt{3}[/tex] [tex]cm^{2}[/tex]
In Δ ACB measure of angle ACB is 90° and m∠ CAB is 30°We use: [tex]tan(30) = \frac{BC}{AC}[/tex]
<=> BC = [tex]4\sqrt{3}*tan(30)[/tex]
= 4 cm
And BC is the height of the the pyramid
=> The volume of a pyramid = [tex]\frac{1}{3}[/tex] [tex]12\sqrt{3}[/tex] [tex]cm^{2}[/tex] * 4 cm
= [tex]16\sqrt{3}[/tex] [tex]cm^{3}[/tex]