Answer:
9 laps
Step-by-step explanation:
75% of something is the same as three-fourths, or multiplying by 0.75
12 x 0.75 = 9
or you can divide by 4 and then multiply by three if you know what to separate the original number into
12/4 = 3 3 x 3 = 9
What’s your least fav food first one gets more points
My least favorite food would defiently be soup.
Answer:
Step-by-step explanation:
Brussels sprouts
Which of the following is linear equation in two variables?
1. x/3 + 5/y = 6
2. 2x^2 - 3y = 8 - 3y
3. x + 2y = 5 - 3y
4. 3x^2 + y = 0
if triangle pqrs is similar to triangle wxyz find the value of x?
Answer:
x=60
Step-by-step explanation:
these shapes seem to be flipped
side WZ seems to be similar to PS
and Side ZY seems to be similar to RS
ewe can make ratios on the side lengths
40/75=32/x
cross multiply
40x=75(32)
40x=2400
/40. /40
x= 60
hopes this helps please mark brainliest
1. f(x)=14(x-3)+1. g(x)=7(x+2)+1
2. f(x)=6(x+2)-3. g(x)=8(x-3)+6
3. f(x)=3(x-1)+²/3. g(x)=3(3-x)-2/3
4. f(x)=-1/3(x+2)-4. g(x)=¹/3(-x-2)+6
5. f(x)=4/3(x-2/3)+¹/3. g(x)=2/3 (2²/3 -x)
State the transformations that occur between f(x) and g(x). I would greatly appreciate if someone could help me with these! Thank you
Answer:
Comparing the functions, from the tables, it is found that (f - g)(x) is positive in the interval (–∞, 9) .
----------------------
For the subtraction function, we simply subtract both functions, thus:
It is positive if f is greater than g, that is: f(x) > g(x).
It is a linear function, so one function is greater before the equality, one after.
They are equal at x = 9.
If x < 9, f(x) > g(x), and thus, (f - g)(x) is positive, which means that the desired interval is:
(–∞,
Step-by-step explanation:
How do you solve 16/48 = n/36?
Answer:
n = 12
Step-by-step explanation:
16/48 = n/36
cross multiply
16 × 36 = 48n
576 = 48n
n = 576/48
n = 12
rate as brainliest
the systolic blood pressure of 18-year-old women is normally distributed with a mean of 120 mmhg and a standard deviation of 12 mmhg. approximately what percentage of 18-year-old women have a systolic blood pressure between 108 mmhg and 132 mmhg?
Percentage of 18-year-old women have a systolic blood pressure between 108 mm hg and 132 mm hg is 68.27 %
z - score :
mean = 120
standard deviation = 12
you want to find the area under the distribution curve between the scores of 108 and 132 .
z - score low :
low z-score = ( 108 - 120 ) / 12 = -12 / 12 = -1.
z - score high :
high z-score = (132 - 120) / 12 = +12 / 12 = +1.
the + sign is normally silent (not shown) but i show it here to emphasize that you are going from a low z-score of -1 to a high z-score of +1.
so here probability = 0.6827
= 0.6827 * 100 %
= 68.27 %
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a cylinder is inscribed in a right circular cone of height 5.5 feet and radius (at the base) equal to 3.5 feet. what are the dimensions of such a cylinder which has maximum volume?
Answer:
Step-by-step explanation:
If r and h radius and of inscribed cylinder then from similyarity of triangles(2- h)/2 = 2r/15, from here h = 2 - 4r/15.
Volume V = πr2h = πr2(2 - 4r/15)= π(2r2 - 4r3/15). Let find derivative and set it to 0:
V' = π(4r - 12r2/15) = 0; we get equation 4r - 4r2/5 = 0, r = 0 and r = 5.
To check if we get maximum we find V'' = π(4 - 8r/5) and at r = 5 V'' = π(4 -8) = -4π < 0 max
Answer: demantions of inscribed cylinder r = 5 and h = 2 - 4·5/15 = 2 - 4/3 = 2/3
How do you evaluate the definite integral ∫2^x dx from [−1,1]?
The solution for definite integral ∫2^x dx from [−1,1] is
3/ 2 ln2
Definite Integral:
A definite integral is defined as the exact limit and summation examined in the previous section to find the net area between the function and the x axis. Also note that the definite integral notation is very similar to the indefinite integral notation. The reason for this will become clear in due course.
There are a few terms that should be left out along the way. The number "a" below the integral sign is called the lower integral limit, and the number "b" above the integral sign is called the upper integral limit. Even if the intervals a and b are specified, the lower bound is not necessarily less than the upper bound. Collectively, a and b are often referred to as the interval of integration.
Given a function :
f(x) that is continuous function on the interval [a , b]
we divide the interval into n subintervals of equal breadth, Δx, and from each interval choose a point, x i. Then the definite integral of f(x) from a to b is
[tex]\int\limits^b_a f(x) \, dx = \lim_{n \to \infty} f(xi)[/tex] Δx.
According to the question:
let's start by differentiating 2ˣ.
y = 2ˣ
⇒ ln y = x ln 2
⇒ 1/y dy/dx = ln2
⇒ d /dx = y ln 2 = 2ˣ ln2
So remembering integration is the reverse of differentiating.
y = 2ˣ
⇒ dy/dx = 2ˣ ln 2
⇒ ∫2ˣ dx = 2ˣ / ln 2 + C
2ˣ > 0, ∀ x ∈ R, there is no negative area so we can
Insert the limits and evaluate immediately.
= 1/ ln2 [2x][tex]\left \{ {{y= -1} \atop {x=1}} \right.[/tex]
= 1/ln 2 (2¹ - 2⁻¹)
= 3/ 2ln 2
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How do you convert 25 degrees into radians?
Answer:
25° × π/180 is = 0.4363rad
Step-by-step explanation:
SHOW WORK FOR BRAINLIST DUE TODAY
The true or false values of the statements are:
The book is $18 : TrueGiselle can earn up to $18 pulling weeds for her grandmaGiselle's grandma pays her $1 for every 5 weeds she pullsGiselle does not have to use any of her own money toward the purchase of the book when she pulls 90 weedsGiselle only needs to pull 18 weeds to not use any of her own money: FalseHow to determine the true statements from the scenario?From the question, we have the graph which represents the given parameters that can be used in our computation
Analysing the graph, we have:
The graph crosses the y-axis at y = 18
This means that the y-intercept of the graph is
y-intercept = 18
This in other word mean that:
The cost of the book is $18
So, (a) is true
Also, the graph crosses the x-axis at x = 90
This means that the x-intercept of the graph is
x-intercept = 90
This in other word mean that:
Giselle gets $18 if she pulls all the weed (i.e. 90 weeds) in the garden
So, (b) and (d) are true
The amount paid by her grandma is calculated as
Amount = 18/90
Amount = 1/5
So, (c) is true
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For each equation, determine whether it is linear.
(a) y=x
(b) y=-9
Equation
(c) y=4x²¹ +8
(d) y=-4x+7
Is the equation linear?
Yes
No
O
O
X
Answer:
(a) y=x YES
(b) y=-9 YES
(c) y=4x²¹ +8 NO
(d) y=-4x+7 YES
Step-by-step explanation:
See attached worksheet.
the 95% two-sided confidence interval for the mean is (-0.1,0.2). one of your friends claims that the mean could be 0. is your friend's claim reasonable? if yes, select true. if no, select fals
The 95% two-sided confidence interval for the mean is (-0.1,0.2). one of your friends claims that the mean could be 0. is your friend's claim reasonable.
It is TRUE statement.
Now, According to the question:
Let's know:
What is meant by 95% confidence interval?
Strictly speaking a 95% confidence interval means that if we were to take 100 different samples and compute a 95% confidence interval for each sample, then approximately 95 of the 100 confidence intervals will contain the true mean value (μ).
OR
A confidence interval, in statistics, refers to the probability that a population parameter will fall between a set of values for a certain proportion of times. Analysts often use confidence intervals than contain either 95% or 99% of expected observations.
Hence, The 95% two-sided confidence interval for the mean is (-0.1,0.2). one of your friends claims that the mean could be 0. is your friend's claim reasonable.
It is TRUE statement.
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2. Select all quantities that are proportional to the diagonal length of a square.
A. Area of the square
(B. Perimeter of the square
C. Side length of the square
two less than the product of a number and three
Evaluate when f = 4.5.
A 2-column table with 5 rows. Column 1 is labeled Key Words with entries two, less than, product, a number, three. Column 2 is labeled Replace with entries 2, minus, times, f, 3.
Write and evaluate the expression shown on the left. Then, check all that apply.
Write the expression as 2 – 3f.
Write the expression as 3f – 2.
Write the expression as 2f – 3.
The value when f = 4.5 is 6.75.
The value when f = 4.5 is 6.
The value when f = 4.5 is 11.5.
The expression as 3f – 2.
The value when f = 4.5 is 11.5.
How to illustrate the equation?An equation is the statement that illustrates the variables given. In this case, two or more components are taken into consideration to describe the scenario
Two less than the product of a number and three will be:
(3 × f) - 2
= 3f - 2
When f = 4.5
(3 × 4.5) - 2
= 11.5
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Brooklyns mother gave her an allowance at the beginning of a certain summer break. Brooklyn spent an equal amount of money each week from the allowance. The line graph shows her allowance over 4 weeks. How much did brooklyn spend on her allowance each week
Pls help!! Iv'e been struggling for a while!
Answer: wait how much was her allowance
Step-by-step explanation:
Tyler says that since triangle ACD is similar to triangle ABC, the length of CB is 11.96. Noah says that since ABC is a right triangle, we can use the Pythagorean Theorem. So the length of CB is 12 exactly. Do you agree with either of them?
I agree with Noah because she used Pythagorean theorem.
What is a Pythagorean theorem?Pythagoras, a Greek philosopher who was born in 570 BC, is honored by having his theorem named after him. The theorem has likely been demonstrated the most times of any mathematical theorem using a variety of techniques.
In analytic geometry, when Euclidean space is represented by a Cartesian coordinate system, Euclidean distance satisfies the Pythagorean relation: the squared distance between two points equals the sum of squares of the difference in each coordinate between the points. The theorem can be applied to higher-dimensional spaces, non-Euclidean spaces, objects other than right triangles, and even things that are not triangles at all but n-dimensional solids.
Given that,
Taylor says that triangle ACD is similar to triangle ABC
And length of CB is 11.96
Abd also given that,
Noah says that since ABC is a triangle.
Length of CB is 12
I agree with Noah because she used Pythagorean theorem,
BC²+AC²=AB²
12²+5²=13²
144+25=169
169=169
So, I agree with Noah.
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what is the percent of change 8 to 2?
The percent of change 8 to 2
which equation shows that you can find the power of a power by finding the product of the exponents? clear check (ya)b=ya⋅b (ya)b=ya b (ya)b=ya b (ya)b=ya ⋅ b
The equation which shows the correct way to find the product out of the exponents is (A) (y∧a)∧b=y∧a⋅b.
What are exponents?The way of representing huge numbers in terms of powers is known as an exponent.
Exponent, then, is the number of times a number has been multiplied by itself.
For instance, the number 6 is multiplied by itself four times, yielding 6 * 6 * 6 * 6.
We can write this as 64. Here, 4 is the exponent, and 6 is the base.
So, multiply the exponents to find the product as follows:
(W^c)^d = W^c•d (RULE)
So, we will have:
(y∧a)∧b=y∧a⋅b
Therefore, the equation which shows the correct way to find the product out of the exponents is (A) (y∧a)∧b=y∧a⋅b.
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Correct question:
Which equation shows that you can find the power of power by finding the product of the exponents?
clear check
a. (y∧a)∧b=y∧a⋅b
b. (ya)∧b=ya∧b
c. (y∧a)b=ya∧b
d. (y∧a)∧b=ya ⋅ b
solve for x.
2.4x - 9.1x + 12.5x + = -39.44
The equation can be written as: 2.4x - 9.1x + 12.5x = -39.44. x = 9.44.
What is distributive property?The distributive property is a mathematical rule that states that multiplying a number by a group of numbers in a set can be done by multiplying the number by each individual number in the set. It is sometimes referred to as the distributive law of multiplication. This property is used to simplify complex expressions and equations into simpler ones. For example, the distributive property allows us to take the expression (x+y) * 5 and rewrite it as x * 5 + y * 5. This makes it easier to work with and solve. The distributive property can be used with addition and multiplication and is one of the most important and useful tools in algebra.
To solve for x, we need to use the distributive property to combine the like terms on the left side of the equation:
2.4x - 9.1x + 12.5x = (2.4 - 9.1 + 12.5)x
= -4.2x
We can now divide both sides of the equation by -4.2 to isolate x:
-4.2x / -4.2 = -39.44 / -4.2
x = 9.44
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Combine the like terms to create an equivalent expression:
−3n−7+(−6n)+1
Answer:
-9n - 6
Step-by-step explanation:
1. combine the n's
-3n - 6n = -9n
2. combine the constants
-7 + 1 = -6
-4/5x=12
Pls HURRRRRRYYYYYYYYYYY
Answer:
The answer is -15
ASAP! If a certain cannon is fired from a height of 8.1 meters above the ground, at a certain angle, the height of the cannonball above the ground, h, in meters, at time, t, in seconds, is found by the function h(t) = -4.9t^2. + 27.5t + 8.1. Find the time it takes for the cannonball to strike the ground.
The cannonball will strike the ground after about [] seconds.
(Type an integer or a decimal. Round to the nearest hundredth as needed.)
The time it takes for the cannonball to strike the ground if a certain cannon is fired from a height of 8.1 meters above the ground, at a certain angle, the height of the cannonball above the ground, h, in meters, at the time, t, in seconds, is found by the function h(t) =-4.9 t² + 27.5t + 8.1 is 5.612 seconds.
What is velocity?A vector measure of movement's speed and direction is called velocity. Simply described, velocity is the rate of movement in a specific direction.
Given:
The height of the cannon = 8.1 m
The height equation, h = -4.9 t² + 27.5t + 8.1
Calculate the time by putting the value of height in the equation as shown below,
h = (-4.9 t² + 27.5t + 8.1)
8.1 = (-4.9 t² + 27.5t + 8.1)
-4.9 t² + 27.5t = 0
Solve the quadratic equation,
t = 5.61224 sec
Therefore, the time it takes for the cannonball to strike the ground if a certain cannon is fired from a height of 8.1 meters above the ground, at a certain angle, the height of the cannonball above the ground, h, in meters, at the time, t, in seconds, is found by the function h(t) =-4.9 t² + 27.5t + 8.1 is 5.612 seconds.
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h equation could be represented by the number line A. 1+ (-7) = -6 B. -7 + 6 = -1 C. -6 + (-1) = -7 D. -6 + 7 = 1
The equation that could be represented by the number line is 1+ (-7) = -6. Option A. is the answer
How to determine which equation could be represented by the number line?A number line is a line on which numbers are marked at intervals, which is used for illustrating simple numerical operations
Looking at the number line in the image, the arrow from right to left (backward) by 7 steps (-7).
Thus, the equation can be written as 1 + (-7) = -6
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how many megawatt hours (mwh) per year of savings did the students identify for computers at the penn state mueller laboratory building? how many megawatt hours (mwh) per year of savings did the students identify for computers at the penn state mueller laboratory building? 12 mwh 10 mwh 120 mwh 30 mwh
There are 30-megawatt hours (MWh) per year of savings the students had identified for computers at the Penn State Mueller Laboratory Building.
"Information available from the question"
How many megawatt hours (mwh) per year of savings did the students identify for computers at the Penn state Mueller laboratory building?
Now, According to the question:
There are 30-megawatt hours (MWh) per year of savings the students had identified for computers at the Penn State Mueller Laboratory Building.
At Pennsylvania State University, an undergraduate class studied an environmental evaluation in one of their laboratory buildings in biology. They want to answer the question, "How is this building like an ecosystem?" Their evaluation result was a report that contains 52-page noting ways to lessen the Mueller Laboratory Building’s environmental footprint in of water, energy communications, maintenance, renovation, and food usage. The students establish techniques to save an almost $45,500 yearly in the energy cost alone for a building with 123 scientists and backing staff.
Hence, There are 30-megawatt hours (MWh) per year of savings the students had identified for computers at the Penn State Mueller Laboratory Building.
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two airplanes are flying in the air at the same height: airplane a is flying east at $$ mi/h and airplane b is flying north at $$ mi/h. if they are both heading to the same airport, located $$ miles east of airplane a and $$ miles north of airplane b, at what rate is the distance between the airplanes changing?
The distance between the airplanes changing is -390.
Calculation:The miles from the airport to Airplane A can be calculated as follows: a = 30 -250t, where t is in hours.
Similar to airplane A, airplane B's distance from the airport can be expressed as...b = 40 -300t
Using the Pythagorean theorem, one can calculate the separation (d) between the aircraft:
d^2 = a^2 + b^2
Depending on the passage of time, we have...2dd' = 2aa' + 2bb', and d' = (aa' + bb')/d.
The values of its variables at t=0 must be determined in order to determine the numerical value of thisa = 30 -2500 = 30 a' = -250 b = 40 -3000 = 40 b' = -300
d = √(a²+b²) = √(900+1600) = 50
Then, d' = (30(-250) +40(-300))/50 = -19500/50 = -390
At a speed of 390 miles per hour, the space between the aircraft is closing.
How far apart are the equation's two planes?The distance between the two planes is going to be the square root of six, therefore if we solve for d, multiply both sides of this equation by the square root of six, we obtain six is equal to negative d, or d is equal to negative six.
How widely apart are commercial airplanes?For a commercial airliner, separation will typically be at least 3 miles laterally or 1,000 feet vertically (as stated in the question). The 5 mile rule is applied laterally in the enroute environment, at greater operating speeds over 10,000 feet, depending on the kind of radar and distance from the antennae.
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Which one is not criteria of congruence * ASA SAS AAS SSA?
Answer:
Step-by-step explanation:
well this makes no sese is there any pics
Eh I don't know ???
Picture should be shown...
Please help, giving thanks and brainliest:) (Please give an explanation if possible and please dont give a fake answer)
In the figure given the value of x is calculated to be
x = 128x = 2x + 72 = 96 degreesHow to find the value of x in the figureThe value of x is solved from using the vertical angle theorem.
According to this theorem, when two straight lines cross, they create two sets of linear pairs with equal angles.
The adjacent angles created by the junction of these two lines are likewise said to be supplementary, or equivalent to 180 degrees.
From this principle,
8x = 2x + 72
8x - 2x = 72
6x = 72
x = 16
The angles marked by 8x is equal to
= 8 * 12
= 96 degrees
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Which of the following is/are not a quadratic equation?
A. x^2–8x+5=0
B. 3x^2–4=0
C. 2x=x^2
D. x+5=3
(C) 2x=x^2 is not a quadratic equation and the rest of the equation is a quadratic equation.
What is a quadratic equation?Any algebraic statement that can be represented in a standard form, where x stands for an unknown number, a, b, and c stand for known values, and where a 0 is true, is said to be a quadratic equation.
Factoring, using square roots, completing the square, and using the quadratic formula are the four approaches of solve a quadratic problem.
A quadratic equation's form is: ax²+bx+c=0
(A) x^2–8x+5=0
In the form ax2+bx+c=0.
(B) 3x^2–4=0
In the form ax2+bx+c=0.
(C) 2x=x^2
Not in ax2+bx+c=0 form.
(D) x+5=3
In the form ax2+bx+c=0.
Therefore, (C) 2x=x^2 is not a quadratic equation and the rest of the equation is a quadratic equation.
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PLEASE HELP!
The number of miles y varies directly with the number of hours x as shown in the graph. write a direct variation equation to represent this relationship. then identify the constant of variation and interpret it's meaning.
Answer:rise over rub
Step-by-step explanation:
Find domain and range please! Die tmrw!
Answer: Domain: All real numbers. Range: (0,-∞)
Step-by-step explanation:
Assuming the arrows denote that this behavior continues for the rest of the function we can say what the domain and range are. Domain is the x-values where this function exists. There are no holes or asymptotes visible so it would appear it exists at all x-values and therefore all real numbers. For the range we can see the line does not go into the positive y-values at all. That means the range is all negative values and no positives, or (0,-∞).
