You are designing a 5 kilometer course for charity run. The design now has been covers 4,908.5 meters, hence, you need to add more 91.5 meters on the course.
The conversion from yard to meter is:
1 yard = 0.9144 meters
The course streets and the distances after converted into meters are:
main street to 6th ave. 781 yards = 714.15 meters
6th ave. to pleasant road 1,250 yards = 1143 meters.
pleasant road to city park 275 yards = 251.46 meters
route through city park 2,337 yards = 2,136.95 meters
city park to main street 725 yards = 662.94 meters
Total course = 714.15 + 1143 + 251.46 + 2,136.95 + 662.94
Total course = 4,908.5 meters
The design is 5 km = 5000 meters. Therefore, you still need to add:
5000 - 4,908.5 = 91.5 meters more course.
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1. Write out the law of cosines and find the hypotenuse of triangle with 2 sides lengths equal to three and the included angle measuring 75 degrees.
2. What happens in law of cosines formula if the angle from the above question is changed to 90 degrees.
Answer:
1.) \(\sqrt{13.341}\) ≈ 3.652
2.) I would say something about how the A in front of cos in the equation would change to 90, rather than stay 75 (in the equation for the step by step), but it would be easier to just use the Pythagorean theorem.
Step-by-step explanation:
I think we may have the same class so hopefully this helps:
1.) \(a^2 = b^2 + c^2 - 2bccosA\) --> law of cosines formula.
\(a^2 = 3^2 + 3^2 - 2(3)(3)cos(75)\) --> plugged in numbers; when you draw the triangle, the included angle would be A, and the opposite side would be a. B and b, and C and c are opposite each other. In this case, a is the hypotenuse.
\(a^2 = 18 - 18cos75\) --> in between steps.
\(a^2 = 13.341\) --> more simplifying.
\(a(hypotenuse) = \sqrt{13.341} or 3.652\) --> answer
2.) This one is just an explanation: The 75 in the equation is the given angle, which is a. If this changes, it would just change in the equation too. And obviously, if it's 90 degrees, you can just use Pythagorean theorem a^2+b^2=c^2.
Good luck! :)
Compare 160 square root and 116/9
When comparing the two numbers we get that 116/9 is greater than square root of 160.
The square root of 160
= √160
= 12.6491...
≈ 12.65
The fraction number is 116/9 , converting to decimal we get:
116/9
= 12.888
≈ 12.89
Now comparing the two numbers we get:
12. 89 > 12.65
hence 116/9 > 12.65
The opposite of squaring an integer is finding its square root. Finding a number that, when squared, yields the original value will reveal the square root of a number, which is found by multiplying it by itself. If "a" is equal to "b" squared, then a = b.
Every number has four roots that are four by four, one of a positive value and one of a negative value, because the square of almost any integer always represents a positive number. For instance, the square roots of 4 are both 2 and -2. However, the square root of an integer is typically expressed using only the positive value.
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(PLEASE I NEED HELP WITH QUESTION) Use the given graph of the function f, find the following. (picture of graph shown)
a) the intercepts if any
b) the domain and range (in interval form)
c) the intervals on which it is increasing, decreasing, or constant
d) whether it is even, odd, or neither
Answer:
a) There is one y-intercept at (0,0); there are two x-intercepts: one at (0,0) and the other at around (2.4,0.)
b) The domain of the function in interval notation is \([-3,3]\); the range of the function in interval notation is \([-2,2]\).
c) The function increases on the interval \((2,3)\). The function decreases on the interval \((-1,1)\). The function is constant on the intervals \((-3,-1)\) and \((1,2)\).
d) Neither
Substituting the equation x = 4y - 12 into the equation -2y = x -
6 will produce the equation
Answer: y=-(4y-12)/2 + 3; x=0 y=3
6 less than the quotient of 4 and a number
Answer:
4/n subtracted by 6 or the third option
Step-by-step explanation:
Estimate each percent.
51% of 62
Group of answer choices
of 60 is 30
of 60 is 20
of 60 is 15
of 60 is 12
Answer:
51% of 62 is 31.62 but rounded would be 30
Step-by-step explanation:
Answer:
I give that man Brainlyest right now
Could someone help me on this problem please thank you if you do!
Answer:
the third graph
Step-by-step explanation:
1. increase - then you know the line has to go upwards. so only first &3rd lines are potentially correct answer
2. look at the Y axis markings, first one goes from 5 to 11, it increased by 6. so it's not right.
answer is the 3rd one.
The radius of the circle shown below is 3 inches.
What is the area of this circle, in square inches?
Answer:
the area = 28.27 or you can write the answer out as 28.2744 or also 28.27433
Step-by-step explanation:
start with what we know. the formula for solving this is A=pi R squared
so, area= pi (3.1416)
then, multiply that by the radius given, which is 3.
So, 9.4248 × 3 = 28.2744 square inches
or 28.27 sq.in.
HOPE THIS HELPS... HAVE A GREAT DAY!!
Find the volume of the cone
Answer:
formulae : 1/3 × area of base × height
= 1/3 × 6 × 8
= 1×2×8
=16
the normal model n(58, 21) describes the distribution of weights of chicken eggs in grams. suppose that the weight of a randomly selected chicken egg has a z-score of 1.78. what is the weight of this egg in grams? round to the nearest hundredth of a gram.
The weight of the eggs in grams 95.38 grams.
Let X the random variable that represent the weights of a population, and for this case we know the distribution for X is given by:
X ~ N(58,21)
where µ = 58 and σ = 21
The z score for this case is given by this formula:
z = x - µ/σ
We know that the value of z = 1.78 and we want to estimate the value of X. If we solve for X from the z formula we got:
X = µ+1.78σ
= 58 + 1.78×21
= 95.38
So, the corresponding weight for a z score of 1.78 is 95.38 grams.
Hence we get the required answer.
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Classify .25252525. Please!!
Answer: what?????? but um is 6 inches small?
Step-by-step explanation:
Answer:
Rational
Step-by-step explanation:
It is rational because a rational number is a number that can be represented a/b where a and b are integers and b is not equal to 0.
.25252525 is equal to \(\frac{100000000}{396000004}\)
where a = 100000000
and b = 396000004
HEY CAN ANYONE PLS ANSWER DIS MATH QUESTION!!!
Answer: C
Step-by-step explanation:
Answer:
It is going to be C
Step-by-step explanation:
Because after you complete the problem it will equal the nu,ber selcted on c
Please help i need it fast
Show how you got your answer too please
Answer:
60.1 feet
Step-by-step explanation:
x= length of ladder
48/sin53 = x/sin90
x=48*sin90/sin53
x=60.1
You just bought a 6-month straddle which pays the absolute difference between the stock price after 6 months and 42. Calculate the probability of having a positive profit after 6 months. Possible Answers A Less than 0.35 B At least 0.35 but less than 0.40 c At least 0.40 but less than 0.45 D At least 0.45 but less than 0.50 E At least 0.50
To calculate the probability of having a positive profit after 6 months, we need to consider two scenarios: the stock price being higher than 42 and the stock price being lower than 42.
If the stock price is higher than 42, then the profit will be the absolute difference between the stock price and 42. Let's call this difference "x". In this case, the profit will be x, since the call option will be in the money and the put option will be out of the money.
If the stock price is lower than 42, then the profit will be the absolute difference between 42 and the stock price. Let's call this difference "y". In this case, the profit will be y, since the put option will be in the money and the call option will be out of the money.
To calculate the probability of having a positive profit, we need to find the probability of the stock price being higher than 42, multiplied by the expected profit in that scenario, plus the probability of the stock price being lower than 42, multiplied by the expected profit in that scenario.
Let's assume that the stock price follows a normal distribution with a mean of 42 and a standard deviation of σ. The probability of the stock price being higher than 42 can be calculated as follows:
P(X > 42) = 1 - P(X < 42) = 1 - Φ((42 - 42)/σ) = 1 - Φ(0) = 0.5
Where Φ is the standard normal cumulative distribution function.
The expected profit in this scenario is x, which can be calculated as follows:
E(x) = ∫[42, +∞] x * f(x) dx
Where f(x) is the probability density function of the normal distribution.
Since the normal distribution is symmetric around the mean, we can assume that the expected profit in the lower scenario is the same as in the upper scenario, but with a negative sign:
E(y) = -E(x)
Therefore, the expected total profit is:
E(x+y) = E(x) + E(y) = 0
Since the expected total profit is zero, the probability of having a positive profit is the same as the probability of having a negative profit. Therefore, the answer is:
B At least 0.35 but less than 0.40
To answer your question, follow these steps:
Step 1: Understand the problem
You have bought a 6-month straddle that pays the absolute difference between the stock price after 6 months and 42. You need to calculate the probability of having a positive profit after 6 months.
Step 2: Identify the profit condition
For a positive profit, the payout should be greater than the cost of the straddle. Since we do not have the cost of the straddle, we cannot determine the exact probability of having a positive profit after 6 months.
However, we can infer that a higher probability of the stock price deviating significantly from 42 after 6 months will increase the likelihood of a positive profit. Unfortunately, without more information on the stock price distribution or the cost of the straddle, we cannot provide a definite answer within the given answer choices (A, B, C, D, or E).
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Explicit formulas for compositions of functions. The domain and target set of functions f, g, and h are Z. The functions are defined as: . . f(x) = 2x + 3 g(x) = 5x + 7 h(x) = x2 + 1 = . Give an explicit formula for each function given below. (a) fog (b) gof (C) foh (d) hof
Explicit formulas are mathematical expressions that represent a function or relationship between variables in a direct and clear way, without the need for further calculations or interpretation.
To find the explicit formulas for the compositions of the given functions, we need to substitute the function inside the other function and simplify:
(a) fog(x) = f(g(x)) = f(5x + 7) = 2(5x + 7) + 3 = 10x + 17
So the explicit formula for fog(x) is 10x + 17.
(b) gof(x) = g(f(x)) = g(2x + 3) = 5(2x + 3) + 7 = 10x + 22
So the explicit formula for gof(x) is 10x + 22.
(c) foh(x) = f(h(x)) = f(x^2 + 1) = 2(x^2 + 1) + 3 = 2x^2 + 5
So the explicit formula for foh(x) is 2x^2 + 5.
(d) hof(x) = h(f(x)) = h(2x + 3) = (2x + 3)^2 + 1 = 4x^2 + 12x + 10
So the explicit formula for hof(x) is 4x^2 + 12x + 10.
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At the p.e. class, pupils help each other measure heights. the average height of jeremy and justin is 147 cm. jeremy is 24 cm taller than justin. what is the height of jeremy?
The height of Jeremy is 159 cm.
What is average?In layman's terms, an average is a single number chosen to represent a set of numbers, typically the sum of the numbers divided by the number of numbers in the set (the arithmetic mean). The average of the numbers 2, 3, 4, 7, and 9 (summed to 25) is 5, for example. An average could be another statistic, such as the median or mode, depending on the context.To find the height of Jeremy:
The formula of average = sum of terms/number of termsLet, Justin, be x and Jeremy be x + 24So,
147 = x + (x+24) / 22x + 24 = 147 × 22x + 24 = 2942x = 294 - 242x = 270x = 135Then, Jeremy = 135 + 24 = 159 cm.
Therefore, the height of Jeremy is 159 cm.
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Sue has to cut her grandma's grass this weekend and wants to know exactly how much area she will be cutting. Calculate the area of the polygon. Be sure to show all your work and explain your answer. Six-sided polygon that includes two isosceles right triangles, one with height and base of 25 feet, the other height and base of 8 feet, and one rectangle measuring 35 feet by 8 feet.
Answer:
Step-by-step explanation:
700.5
please help making brainliest if right!
Answer:
The answer is SAS
Using the midpoint method, the absolute value of the (price) elasticity of demand calculated for a change in price between $10 and $2 is
Group of answer choices
A < 1
B 1
C > 1
The price elasticity of demand measured using midpoint method, for a price change between $10 and $2 can be determined as follows:Price elasticity of demand (mid-point method) = [ΔQ / {(Q1 + Q2)/2}] ÷ [ΔP / {(P1 + P2)/2}]Given that P1 = $10, P2 = $2, Q1 = Q2, and the price has decreased from $10 to $2.
Therefore, the midpoint price (P) = (P1 + P2) / 2 = ($10 + $2) / 2 = $6The midpoint quantity (Q) = (Q1 + Q2) / 2 = Q1 / 2 + Q2 / 2 = Q / 2 + Q / 2 = Q.ΔP = $2 − $10 = −$8ΔQ = Q − Q = 0Hence, the absolute value of the price elasticity of demand using the midpoint method for a change in price from $10 to $2 is :Price elasticity of demand (mid-point method) = [ΔQ / {(Q1 + Q2)/2}] ÷ [ΔP / {(P1 + P2)/2}]E = [0 / {Q / 2}] ÷ [−8 / $6]E = 0 ÷ −1.3333E = 0
So, the correct answer is option B: 1.
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help needed please and thank you
Answer:
I think the answer is B or D
Step-by-step explanation:
Can i get brainiest please?
please can you answer this ASAP
Answer:
x = 2
Step-by-step explanation:
\( \rm Solve \: for \: x: \\ \rm \longrightarrow 4 (3 x - 1) = 20 \\ \\ \rm Divide \: both \: sides \: of \: 4 (3 x - 1) = 20 \: by \: 4: \\ \rm \longrightarrow \dfrac{4(3x - 1)}{4} = \dfrac{20}{4} \\ \\ \rm \dfrac{4}{4} = 1: \\ \rm \longrightarrow 3 x - 1 = \dfrac{20}{4} \\ \\ \rm \dfrac{20}{4} = 5: \\ \rm \longrightarrow 3 x - 1 = 5 \\ \\ \rm Add \: 1 \: to \: both \: sides: \\ \rm \longrightarrow 3 x + (1 - 1) = 1 + 5 \\ \\ \rm 1 - 1 = 0: \\ \rm \longrightarrow 3 x = 5 + 1 \\ \\ \rm 5 + 1 = 6: \\ \rm \longrightarrow 3 x = 6 \\ \\ \rm Divide \: both \: sides \: of \: 3 x = 6 \: by \: 3: \\ \rm \longrightarrow \dfrac{3x}{3} = \dfrac{6}{3} \\ \\ \rm \dfrac{3}{3} = 1: \\ \rm \longrightarrow x = \dfrac{6}{3} \\ \\ \rm \dfrac{6}{3} = 2 : \\ \rm \longrightarrow x = 2\)
How many real solutions exist for this system of equations?
A. Zero
B. One
C. Two
D. Infinite
A) zero as the value of determinant is imaginary
The number of real solutions of the equations y = x - 3 and y = x² - 6x + 10 will be zero. Then the correct option is A.
What is the solution to the equation?The allocation of weights to the important variables that produce the calculation's optimum is referred to as a direct consequence.
The equations are given below.
y = x - 3
y = x² - 6x + 10
Compare both equations, then we have
x² - 6x + 10 = x - 3
Simplify the equation, then we have
x² - 7x + 13 = 0
The solution to the equation, then we have
x = [7 ± √(49 - 52)] / 2
x = 7/2 ± (√3/2)i
The number of real solutions of the equations y = x - 3 and y = x² - 6x + 10 will be zero. Then the correct option is A.
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Pleaseeee someone help me with this answerrrrr
deter mainAnswer:
Don't answer this.
Step-by-step explanation:
Iowa assesments are supposed to be done by the person taking them to where they are at in school. They are meant to challange the person. They also don't effect your grade in anyway, so do your best. If you don't know the answer and it is multiple choice, pick B or C and move on.
the goal of the least-squares regression is to compute a line that
Answer: you did not put in the full equation but i got this right out of the box.
ˉx 28
r 0.82
what is the cost of seeding a rectangular lawn 100 ft by 70 ft if 1 pound of seed costs $8.85 and covers 350 square feet?
Therefore, the cost of seeding a rectangular lawn 100 ft by 70 ft with the given information is $177.
What is area?Area is a measure of the size of a two-dimensional surface or region. It is typically expressed in square units, such as square meters, square feet, or square centimeters. For example, the area of a rectangle can be found by multiplying its length by its width, while the area of a circle can be found by multiplying pi (approximately 3.14159) by the square of its radius. Area is an important concept in many fields, including mathematics, physics, engineering, geography, and architecture.
by the question.
First, we need to calculate the total area of the lawn:
\(Area = length x width\)
\(Area = 100 ft x 70 ft\)
\(Area = 7,000 sq ft\)
Next, we need to determine how many pounds of seed we will need:
\(Seed needed = Area/ Coverage per pound of seed\)
\(Seed needed = 7,000 sq ft /350 sq ft/pound\)
\(Seed needed = 20 pounds\)
Finally, we can calculate the cost of the seed:
\(Cost of seed = Seed needed * Cost per pound of seed\)
\(Cost of seed = 20 pounds* $8.85/pound\)
\(Cost of seed = $177\)
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8x-4y= -56 put in
slope-intercept form
Answer: x=2x +14
Step-by-step explanation:
1) subtract 8x from both sides: -4x= -8x -56
2) divide both sides by -4: x=2x +14
Write a division equation that shows 3 items being divided equally among 4 people. Express the answer as a fraction.
Answer:
3 ÷ 4 = 3/4
Step-by-step explanation:
If you only have three items to share among 4 people, each person will get less than one whole item. So an answer that is a fraction makes sense. A fraction bar is just a division symbol; you read it from the top, down.
Find the value of x. Please help :(
Answer:
x=100, hope this helped.
How many solutions are there to the inequality x1 + x2 + x3 ≤ 11, where x1, x2, and x3 are nonnegative integers? [Hint: Introduce an auxiliary variable x4 such that x1 + x2 + x3 + x4 = 11.]
The number of nonnegative integer solutions to the inequality x1 + x2 + x3 ≤ 11 is C(14,3) = 364.
We can solve this inequality by introducing an auxiliary variable x4, such that x1 + x2 + x3 + x4 = 11. Here, x1, x2, x3, and x4 are all nonnegative integers.
We can interpret this equation as follows: imagine we have 11 identical objects and we want to distribute them among four boxes (x1, x2, x3, and x4). Each box can contain any number of objects, including zero. The number of solutions to this equation will give us the number of nonnegative integer solutions to the original inequality.
We can use a technique known as stars and bars to count the number of solutions to this equation. Imagine we represent the 11 objects as stars: ***********.
We can then place three bars to divide the stars into four groups, each group representing one of the variables x1, x2, x3, and x4. For example, if we place the first bar after the first star, the second bar after the third star, and the third bar after the fifth star, we get the following arrangement:
| ** | * | ****
This arrangement corresponds to the solution x1=1, x2=2, x3=1, and x4=7. Notice that the number of stars to the left of the first bar gives the value of x1, the number of stars between the first and second bars gives the value of x2, and so on.
We can place the bars in any order, so we need to count the number of ways to arrange three bars among 14 positions (11 stars and 3 bars). This is equivalent to choosing 3 positions out of 14 to place the bars, which can be done in C(14,3) ways.
Therefore, the number of nonnegative integer solutions to the inequality x1 + x2 + x3 ≤ 11 is C(14,3) = 364.
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Solve the following system of equations.
5x - 4y= -16
2x+9y=-17
Answer:
Im kind of confused if I rewrite or find the y and x intercept to this equation but I hope this helps.
if you can please give me brainliest.