Answer:
x = 20
Step-by-step explanation:
Assuming you require the value of x
The exterior angle of a triangle is equal to the sum of the 2 opposite interior angles.
7x - 15 is an exterior angle of the triangle, thus
7x - 15 = x + 28 + 4x - 3 , that is
7x - 15 = 5x + 25 ( subtract 5x from both sides )
2x - 15 = 25 ( add 15 to both sides )
2x = 40 ( divide both sides by 2 )
x = 20
22:13 progress 87 percent shift changes you created the following labor plan for truck unloading and box storage during an 8-hour shift. task boxes processed per worker per hour
A labor plan was created for truck unloading and box storage during an 8-hour shift, with the productivity measured in boxes processed per worker per hour.
To fully answer the question, it is necessary to provide the details of the labor plan, including the specific productivity rates for each task and the number of workers assigned to each task. Without this information, it is not possible to provide a comprehensive explanation. However, the labor plan aims to optimize the efficiency of truck unloading and box storage within the given 8-hour shift. It likely involves assigning workers to different tasks based on their productivity levels and the estimated time required for each task.
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Suppose you want to test the claim that μ ≤ 25.6. Given a sample size of n = 48 and a level of significance of α = 0.1, when should you reject H0?Group of answer choicesReject H0 if the standardized test statistic is greater than 1.645Reject H0 if the standardized test statistic is greater than 1.28Reject H0 if the standardized test statistic is greater than 1.96.Reject H0 if the standardized test statistic is greater than 2.575
we should reject H0 if the standardized test statistic is greater than 1.645
Given a sample size of n = 48 and a level of significance of α = 0.1, we can use the z-test to test the claim μ ≤ 25.6.
Since the level of significance is α = 0.1, we need to find the critical value corresponding to a 90% confidence level (1 - α).
The critical value for a 90% confidence level is 1.645.
what is statistic?
A statistic is a numerical value or measure that summarizes a specific characteristic or property of a sample or population. It is commonly used in statistics and research to provide information about a data set or to make inferences about a larger population based on the observed sample.
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find all x-coordinates of points (x,y) on the curve y=(x-7)^6/(x-3)^7 where the tangent line is horizontal.
The x-coordinates of the points (x, y) on the curve where the tangent line is horizontal are x = 7 and x = 3.
To find the x-coordinates of the points where the tangent line to the curve is horizontal, we need to find the values of x that make the derivative of the function equal to zero.
Given the curve equation \(y=\frac{(x - 7)^6}{(x - 3)^7}\), let's differentiate it with respect to x: \(y=\frac{(x - 7)^6}{(x - 3)^7}\)
Taking the derivative of both sides: \(\frac{dy}{dx} = [\frac{(x - 7)^6}{(x - 3)^7}]''\)
To simplify the expression, we can rewrite it as: \(\frac{dy}{dx} = (x - 7)^6 (x-3)^{-7}\)
Now, let's set the derivative equal to zero: \(0=\frac{dy}{dx} = (x - 7)^6 (x-3)^{-7}\)
Since we're looking for the x-coordinates, we need to solve the equation for x. This equation suggests that either the numerator \((x - 7)^6\) should be zero or the denominator \((x - 3)^7\) should be zero.
Setting the numerator equal to zero:
\((x - 7)^6 = 0\)
Solving this equation yields:
x - 7 = 0
x = 7
Now, setting the denominator equal to zero:\((x - 3)^7 = 0\)
Solving this equation yields:
x - 3 = 0
x = 3
Therefore, the x-coordinates of the points (x, y) on the curve where the tangent line is horizontal are x = 7 and x = 3.
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Solve for all values of x by factoring.
x^2 + 11x + 13 = 3
Draw a line representing the "rise" and a line representing the "run" of the line. State the slope of the line in simplest form.
Answer:
9/13
Step-by-step explanation:
rise = y₂ - y₁ = -1 - (-10) = -1 + 10 = 9
run = x₂ - x₁ = 9 - (-4) = 9 + 4 = 13
Step-by-step explanation:
expressions are shown below
Answer:
9
Step-by-step explanation:
Find the area enclosed by the curve x 3t, y t and the y-axis. Step 1 The curve x = t2-3t, y = Vt intersects the y-axis when x = 0, which occurs when t = 0 and 3 3 H 3 '
The area enclosed by the curve x = t^2 − 3t, y = √t and the y-axis is 2.08 square units.
We have been given parametric equations x = t^2 − 3t, y = √t
We need to find the area enclosed by the curve x = t^2 − 3t, y = √t and the y-axis.
Consider x = 0
So, t^2 − 3t = 0
t(t - 3) = 0
t = 0 or t = 3
Let f(t) = t^2 − 3t and g(t) = t
Differentiate the curve f(t) with respect to t.
f'(t) = 2t - 3
NWe know that the formula to find the area under the curve.
A = ∫[a to b] g(t)f'(t) dt
here, a = 0 and b = 3
so, A = ∫[0 to 3] √t (2t - 3) dt
A = ∫[0 to 3] (2t√t - 3√t) dt
A = ∫[0 to 3] (2t^(3/2) - 3t^(1/2)) dt
A = [4/5 t^(5/2) - 2 t^(3/2)]_[t = 0, t = 3]
A = 4/5 3^(5/2) - 2 3^(3/2) - 0 + 0
A = 4/5 3^(5/2) - 2 3^(3/2)
A = 6√3 /5
A = 2.08
Therefore, the area of the curve is 2.08 square units.
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Which equation defines the distance, d, between points (-3,3) and (a,b)? Select all that apply.
A. d= √(a + b)² + (−3 − 3)²
B. d= √(-3 - a)² + (3 - b)²
C. d= √(a + 3)² + (b - 3)²
D. d= √(a - 3)² + (b + 3)²
The distance between the point (-3,3) and (a, b) is;
⇒ d = √(a + 3)² + (b - 3)²
What is an expression?
Mathematical expression is defined as the collection of the numbers variables and functions by using operations like addition, subtraction, multiplication, and division.
Given that;
Two points are,
(-3,3) and (a, b)
Now,
The distance between the point (-3,3) and (a, b) is;
d = √(a - (-3))² + (b - 3)²
d = √(a + 3)² + (b - 3)²
Thus, The distance between the point (-3,3) and (a, b) is;
⇒ d = √(a + 3)² + (b - 3)²
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what is factoring: problems involving factors of polynomials
Answer: Factoring is essentially the reverse of the distributive property. You are basically trying to simplify the polynomial by taking out common factors. You also may try reducing the power (or the highest exponent) of the polynomial with factoring. I would say that factoring is the breaking down of a bigger polynomial into a product of two expressions that are usually multiplied by each other. One specific use of factoring we see a lot is the quadratic formula.
1. Quadratic Factoring --> \(x^2+2x-15\) --> we have an \(x^2\) but we want there to only be "\(x\)"s. Here we need to constant numbers (integers), that multiply together to get \(-15\), and add up to \(+2\). (5 and -3)
- \(x^2+2x-15\) ==> \(x^2+5x-3x-15\) ==> \(x(x+5)-3(x+5)\) ==> \((x-3)(x+5)\)
Above: We can see that we factor out \(x\) from \(x^2+5x\) (This shows that we are aiming to break it down to make it easier to evaluate).
Remember: Factoring does not always mean that the polynomial is in a simpler form. There are many situations where factoring is totally unnecessary and complicates the polynomial even more.
--------------------------------------------------------------------------------------------------------------On a separate note: Distributive Property, if you are unsure or not fully sure on what that means, is when you multiply two expressions together to create one expression. Multiple expressions are combining into one.
Find the missing length of the triangle.
12
16
?
1. Ernie Boddy had $3,620.00 on deposit at savings bank on July 1. The money earns interest at a rate of 6.5% compounded quarterly. a. What is the amount in the account on April first of the following year if no deposits or withdrawals were made? B. How much is the compound interest?
Answer:
235.3$ for part a
The amount in the account on April first of the following year is $3799.358 and the compound interest is $179.358.
What is Compound Interest?Compound interest is defined as the amount of interest which has been calculated on the principal amount as well as the amount accumulated over the previous period is also included.
(a) The amount in a compound interest can be found as,
A = P(1 + \(\frac{r}{n}\)) ^(nt)
where A is the final amount, P is the initial or principal amount, r is the interest rate, n is the number of times compounding occurs in a year and t is the number of years.
Given P = $3,620, r = 6.5% = 0.065, t = 9 months = 0.75 year
n = 4 (since compounded quarterly)
A = 3620 (1 + \(\frac{0.065}{4}\)) ^(4 × 0.75)
= 3620 (1.01625)³
= 3799.358
(b) Compound Interest = Final amount - Initial amount
= 3799.358 - 3,620
= $179.358
Hence the compound interest is $179.358.
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You're working as a floor rep in the local home improvement store. The store wants to increase its inventory. Last year, 40 lawn mowers cost $4,776. At the same cost, how much will 120 lawn mowers cost this year?
Solve for x
-10x= 2 (9 - 2x)
A: 3
B: 9/7
C: -3
D: -9/7
Answer:
c.) x = -3
Step-by-step explanation:
Solve for x:
-10 x = 2 (9 - 2 x)
Hint: | Write the linear polynomial on the left hand side in standard form.
Expand out terms of the right hand side:
-10 x = 18 - 4 x
Hint: | Move terms with x to the left hand side.
Add 4 x to both sides:
4 x - 10 x = (4 x - 4 x) + 18
Hint: | Look for the difference of two identical terms.
4 x - 4 x = 0:
4 x - 10 x = 18
Hint: | Combine like terms in 4 x - 10 x.
4 x - 10 x = -6 x:
-6 x = 18
Hint: | Divide both sides by a constant to simplify the equation.
Divide both sides of -6 x = 18 by -6:
(-6 x)/(-6) = 18/(-6)
Hint: | Any nonzero number divided by itself is one.
(-6)/(-6) = 1:
x = 18/(-6)
Hint: | Reduce 18/(-6) to lowest terms. Start by finding the GCD of 18 and -6.
The gcd of 18 and -6 is 6, so 18/(-6) = (6×3)/(6 (-1)) = 6/6×3/(-1) = 3/(-1):
x = 3/(-1)
Hint: | Simplify the sign of 3/(-1).
Multiply numerator and denominator of 3/(-1) by -1:
Answer: x = -3
Item 20 Question 1 Identify an algebraic equation you can use to find the measure of each angle based on the given description. Then find the measure of each angle. The measure of one angle is 3° more than 12 the measure of its supplement. x+(12x+3)=180 x+(12x+3)=90 x+(12x−3)=180 x+(12x−3)=90 Question 2 The measure of the smaller angle is º. The measure of the larger angle is º. Item 20 Question 1 Identify an algebraic equation you can use to find the measure of each angle based on the given description. Then find the measure of each angle. The measure of one angle is 3° more than 12 the measure of its supplement. x+(12x+3)=180 x+(12x+3)=90 x+(12x−3)=180 x+(12x−3)=90 Question 2 The measure of the smaller angle is º. The measure of the larger angle is º.
this is not the write answer im just it bec whevener but i think it is 13=845-684x3 i think it is the answer
Step-by-step explanation:
for the following exercise, consider the following scenario: a town has an intial population of 50000 . it grows at a constant rate of 5000 per year. find the linear function that model's the town's population p as a function of the year, t , where t is the number of years since the model began.
The required function is P(t)=50000 + 5000t.
In this problem we need to form the function of the population in a town.
Here it is given that the initial population of the town is 50000.
the rate at which the population increases is 5000 per year.
So, the increase for the first year will be 5000. And the population will be 55000.
Then again for the next year the growth will be 5000 and the population will be 50000 + (5000×2)
= 60000
So we can see clearly that the population is varying with time and we can write the function as P(t)=50000 + 5000t where t is the time in years.
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\( \frac{7}{8} \times \frac{2}{4} = \)
what is the answer
Answer:
7/16
Step-by-step explanation:
\(\dfrac78 \times \dfrac24=\dfrac{7 \times 2}{8 \times 4}=\dfrac{14}{32}=\dfrac{7}{16}\)
answer this please I need a real answer
Answer:
see explanation
Step-by-step explanation:
(a)
x² + 2x + 1 = 2x² - 2 ( subtract x² + 2x + 1 from both sides
0 = x² - 2x - 3 ← in standard form
0 = (x - 3)(x + 1) ← in factored form
Equate each factor to zero and solve for x
x + 1 = 0 ⇒ x = - 1
x - 3 = 0 ⇒ x = 3
-----------------------------------
(b)
\(\frac{x+2}{3}\) - \(\frac{2}{15}\) = \(\frac{x-2}{5}\) ( multiply through by 15 to clear the fractions )
5(x + 2) - 2 = 3(x - 2) ← distribute parenthesis on both sides
5x + 10 - 2 = 3x - 6
5x + 8 = 3x - 6 ( subtract 3x from both sides )
2x + 8 = - 6 ( subtract 8 from both sides )
2x = - 14 ( divide both sides by 2 )
x = - 7
--------------------------------------------
(c) Assuming lg means log then using the rules of logarithms
log \(x^{n}\) ⇔ nlogx
log x = log y ⇒ x = y
Given
log(2x + 3) = 2logx
log(2x + 3) = log x² , so
x² = 2x + 3 ( subtract 2x + 3 from both sides )
x² - 2x - 3 = 0
(x - 3)(x + 1) = 0
x = 3 , x = - 1
x > 0 then x = 3
lim x approaches infinity (2x-1)(3-x)/(x-1)(x+3) is
The limit of (2x-1)(3-x)/(x-1)(x+3) as x approaches infinity is 0.
To find the limit of the function (2x-1)(3-x)/(x-1)(x+3) as x approaches infinity, we will divide both the numerator and denominator through the highest power of x. In this case, the highest power of x is x², so we can divide both the numerator & the denominator through x²:
\([(2x-1)/(x^2)] * [(3-x)/((x-1)/(x^2)(x+3))]\)
Now, as x approaches infinity, every of the fractions within the expression procedures zero except for (2x-1)/(x²). This fraction techniques 0 as x procedures infinity because the denominator grows quicker than the numerator. therefore, the limit of the expression as x strategies infinity is:
0 * 0 = 0
Consequently, When x gets closer to infinity, the limit of (2x-1)(3-x)/(x-1)(x+3) is 0.
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please help!!!!
algebra 2
Answer:
domain: x<2 or x>2
x-intercepts: (3/2, 0), (-3/2, 0)
identify the roots of the integrand to remove absolute values, then evaluate using the Fundamental Theorem of Calculus, Part 2. 195. ∫−24∣∣t2−2t−3∣∣dt
The integral ∫[-2, 4] |t^2 - 2t - 3| dt evaluates to -35/2. The roots of the integrand are t = 3 and t = -1, and the evaluation is done using the Fundamental Theorem of Calculus.
To evaluate the integral ∫[-2, 4] |t^2 - 2t - 3| dt using the Fundamental Theorem of Calculus, we need to identify the roots of the integrand to remove the absolute values.
Step 1: Find the roots of the integrand:
We have |t^2 - 2t - 3|. To find the roots, we set the expression inside the absolute value bars equal to zero and solve for t:
t^2 - 2t - 3 = 0
To factorize the quadratic equation, we look for two numbers that multiply to -3 and add up to -2. The factors are -3 and +1:
(t - 3)(t + 1) = 0
Setting each factor equal to zero gives us:
t - 3 = 0 --> t = 3
t + 1 = 0 --> t = -1
So, the roots of the integrand are t = 3 and t = -1.
Step 2: Evaluate the integral using the Fundamental Theorem of Calculus, Part 2:
We divide the interval [-2, 4] into three subintervals:
[-2, -1], [-1, 3], and [3, 4].
Within each subinterval, we have different expressions for the integrand:
For the subinterval [-2, -1]:
|t^2 - 2t - 3| = -(t^2 - 2t - 3) = -t^2 + 2t + 3
For the subinterval [-1, 3]:
|t^2 - 2t - 3| = t^2 - 2t - 3
For the subinterval [3, 4]:
|t^2 - 2t - 3| = -(t^2 - 2t - 3) = -t^2 + 2t + 3
Now, we can evaluate each part of the integral using the Fundamental Theorem of Calculus:
∫[-2, -1] -t^2 + 2t + 3 dt:
= [-t^3/3 + t^2 + 3t] from -2 to -1
= [(-(-1)^3/3 + (-1)^2 + 3(-1))] - [(-(-2)^3/3 + (-2)^2 + 3(-2))]
= [1/3 + 1 - 3] - [-8/3 + 4 - 6]
= [-5/3] - [-2/3]
= -5/3 + 2/3
= -3/3
= -1
∫[-1, 3] t^2 - 2t - 3 dt:
= [t^3/3 - t^2/2 - 3t] from -1 to 3
= [(3^3/3 - 3^2/2 - 3(3))] - [(-1^3/3 - (-1)^2/2 - 3(-1))]
= [27/3 - 9/2 - 9] - [-1/3 - 1/2 + 3]
= [9 - 9/2 - 9] - [-1/3 - 1/2 + 3]
= [9 - 18/2 - 18] - [-2/6 - 3/6 + 18/6]
= [9 - 9 - 18] - [13/6]
= -18 - 13/6
= -36/2 - 13/6
= -72/6 - 13/6
= -85/6
∫[3, 4] -t^2 + 2t + 3 dt:
= [-t^3/3 + t^2 + 3t] from 3 to 4
= [-(4^3/3) + 4^2 + 3(4)] - [-(3^3/3) + 3^2 + 3(3)]
= [-64/3 + 16 + 12] - [-27/3 + 9 + 9]
= [-64/3 + 28] - [-9 + 18]
= [-64/3 + 84/3] - [9]
= [20/3] - [9]
= 20/3 - 27/3
= -7/3
Finally, we sum up the results for each subinterval to get the overall integral:
∫[-2, 4] |t^2 - 2t - 3| dt = ∫[-2, -1] -t^2 + 2t + 3 dt + ∫[-1, 3] t^2 - 2t - 3 dt + ∫[3, 4] -t^2 + 2t + 3 dt
= -1 + (-85/6) + (-7/3)
= -1 - (85/6) - (7/3)
= -6/6 - (85/6) - (14/6)
= -(6 + 85 + 14)/6
= -105/6
= -35/2
Therefore, the value of the integral ∫[-2, 4] |t^2 - 2t - 3| dt is -35/2.
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If you go on both rides, can you be confident that your wait time for Speed Slide will be longer than your wait time for Wave Machine? Yes. Every Speed Slide wait time is more than every Wave Machine wait time. No. There is a lot of overlap in the two data sets.
Answer:
No
Step-by-step explanation:
Hope this helps :)
pleaseee help
The answer choices for number 2 is and the answer choices for number 1 is in the photo
1. Has no relation
2. Is the vertical angle to the corresponding angle
3. Is the corresponding angle
4. Is an alternate exterior angle
The length and breadth of a rectangular room are 5m and 3.2m. Find the cost carpeting the room at the rate of $500 per square metre
1/5x + 4 =1/3x-8
Can you show your work too? That would be great
Answer:
90
Step-by-step explanation:
1/5x+4=1/3x-8
add 8 to both sides and subtract 1/5x from both sides
4+8=1/3x-1/5x
12=5/15x-3/15x
12=2/15x
divide both sides by 2/15
12÷2/15=x
when dividing by a fraction, invert and multiply
12*15/2=x
90=x
CHECK:
1/5(90)+4=1/3(90)-8
18+4=30-8
22=22
Mohamed plants 30 roses in 5 plots,if he needs to plant 120 roses,how many plots he needs ?
\([Hello,BrainlyUser]\)
Answer:
20 Plots
Step-by-step explanation:
Given:
Plants 30 roses in 5 plots
Plants 120 roses in [?] Plots
Question:
How many plots he needs ?
Solve:
\(\frac{roses}{plots}=Solution\)
Divide 30 roses by 5 plots = 6
Hence, 120 roses divide by 6
\(\frac{120}{6}=20\)
Therefore, Mohamed need 20 Plots.
\([CloudBreeze]\)
(8x-4)+(4x-90)
also simplify
Answer:
12x-94
---------------------
Hope this helps!
Have a great day and God bless! :)
I am very confused in this question. Please Help!!!
Answer:
32
Step-by-step explanation:
A : B : C: total
2 3 4 2+3+4 = 9
Take the number of rolls received 72 and divide by 9
72/9 = 8
Multiply each number by 8
A : B : C : total
2*8 3*8 4*8 9*8
16 24 32 72
C received 32 rolls
Please help with this
Find the area of the shaded regions.
Answer:
The area of the shaded region is 7π square centimeters.
Step-by-step explanation:
Note that Circle B has a radius of 3 cm, and the two smaller circles, Circles O and C, both have a radius of 1 cm.
The area of a circle is given by:
\(\displaystyle A = \pi r^2\)
Therefore, the area of Circle B, the entire circle, is:
\(\displaystyle \begin{aligned} A_B &= \pi (3)^2 \\ &= 9\pi \end{aligned}\)
The area of Circle O is:
\(\displaystyle \begin{aligned} A_O &= \pi (1)^2 \\ &= \pi \end{aligned}\)
And likewise, the area of Circle C is:
\(\displaystyle \begin{aligned} A_C &= \pi (1)^2 \\ &= \pi \end{aligned}\)
The area of the shaded area is the area of the Circle B subtracted by the area of Circles O and C. Hence:
\(\displaystyle A_\text{shaded} =A_B - \left(A_ O + A_ C\right)\)
Substitute and evaluate:
\(\displaystyle \begin{aligned} A_\text{shaded} &= (9\pi ) - (\pi + \pi) \\ &= 9\pi - 2\pi \\\ &= 7\pi \end{aligned}\)
The area of the shaded region is 7π square centimeters.
PLZ HELP ME ASAP PLZ
Answer:
Perpendicular bisector
Step-by-step explanation:
The construction is of a perpendicular bisector, because the line in bisected and the angle formed by the bisector is a right angle.
3/9=X/27
Solve for X