Answer:
2.25
Step-by-step explanation:
yes
The unit rate of the silver chain is $0.44 per inch.
What is the unit rate?Unit rate is the ratio of two different units, with denominator as 1. For example, kilometer/hour, meter/sec, miles/hour, salary/month, etc. Arithmetic is probably the most basic and ancient branch of mathematics and is quite commonly used in our day-to-day life.
Given here: 16 inches of silver chain costs $36 and 18 inches cost $40.50
Thus we have the unit rate( dollar/inch) =36/16=40.50/18=4/9
Therefore the unit rate is given by 4/9 or 0.444 dollar per inch.
Hence, The unit rate of the silver chain is $0.44 per inch.
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After 4 years, $20,000 deposited in a savings account with simple interest had earned $800 in interest. What was the interest rate?
The interest rate for the savings account is 5% after 4 years, $20,000 deposited in a savings account with simple interest earned $800 in interest.
We can use the formula for simple interest to solve the problem:
Simple interest = (Principal * Rate * Time) / 100
where Principal is the initial amount deposited, Rate is the interest rate, and Time is the time period for which the interest is calculated.
We know that the Principal is $20,000 and the time period is 4 years. We are also given that the interest earned is $800. So we can plug in these values and solve for the interest rate:
$800 = (20,000 * Rate * 4) / 100
Multiplying both sides by 100 and dividing by 20,000 * 4, we get:
Rate = $800 / (20,000 * 4 / 100) = 0.05 or 5%
Therefore, the interest rate for the savings account is 5%.
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what equations equals 28
The solutions to the equations are:
x = 21,
x = 7,
4 * 7 = 28,
3³ - 2³ = 19, and 30 - 2 = 28.
We have,
x + 7 = 28
To solve for x, we can subtract 7 from both sides of the equation:
x + 7 - 7 = 28 - 7
x = 21
So, the solution to the equation x + 7 = 28 is x = 21.
2x + 14 = 28
To solve for x, we can subtract 14 from both sides of the equation:
2x + 14 - 14 = 28 - 14
2x = 14
Next, we divide both sides of the equation by 2 to isolate x:
2x/2 = 14/2
x = 7
Therefore, the solution to the equation 2x + 14 = 28 is x = 7.
4 * 7 = 28
This equation is already solved.
The product of 4 and 7 is 28.
So, the equation 4 * 7 = 28 is true.
3³ - 2³ = 28
To solve this equation, we need to evaluate the exponentials:
3³ - 2³ = 27 - 8 = 19
Therefore, the equation 3³ - 2³ = 28 is not true; the correct value is 19.
30 - 2 = 28
This equation is already solved.
The difference between 30 and 2 is indeed 28.
So, the equation 30 - 2 = 28 is true.
Thus,
The solutions to the equations are:
x = 21,
x = 7,
4 * 7 = 28,
3³ - 2³ = 19, and 30 - 2 = 28.
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The complete question:
x + 7 = 28
2x + 14 = 28
4 * 7 = 28
3^3 - 2^3 = 28
30 - 2 = 28
Evaluate the limit or state that it does not exist. (If an answer does not exist, enter DNE.) limx→0cot5xcsc5x
Trig-Functions at Zero:
The cosecant function of trigonometry is defined as the fraction 1 over sine function such as:
Csc x=1/sin x Similarly, rewrite the cotangent function by the trigonometry identities as:
Cot x=cos x/sin x
The limit of the given expression is 0.
To evaluate the limit of the given expression, we need to use the trigonometric identities and the limit rules.
First, let's rewrite the expression using the trigonometric identities:
limx→0cot5xcsc5x = limx→0(cos5x/sin5x)(1/sin5x)
Next, we can simplify the expression by multiplying the fractions:
limx→0(cos5x/sin5x)(1/sin5x) = limx→0(cos5x/(sin5x)^2)
Now, we can use the limit rule for the product of two functions:
limx→0(cos5x/(sin5x)^2) = limx→0cos5x * limx→0(1/(sin5x)^2)
The first limit is simply the cosine of 0, which is 1:
limx→0cos5x = cos(0) = 1
The second limit is more complicated. We can use L'Hopital's rule to evaluate it. L'Hopital's rule states that if the limit of the quotient of two functions is in the form 0/0 or ∞/∞, then the limit is equal to the limit of the quotient of their derivatives.
limx→0(1/(sin5x)^2) = limx→0(0/(-10sin5xcos5x)) = limx→0(-1/(10sin5xcos5x))
Now we can use the trigonometric identity sin(2x) = 2sinxcosx to simplify the expression:
limx→0(-1/(10sin5xcos5x)) = limx→0(-1/(5sin(10x)))
Finally, we can use the limit rule for the quotient of two functions:
limx→0(-1/(5sin(10x))) = limx→0(-1) * limx→0(1/(5sin(10x))) = -1 * limx→0(1/(5sin(10x)))
The second limit is in the form 0/0, so we can use L'Hopital's rule again:
limx→0(1/(5sin(10x))) = limx→0(0/(50cos(10x))) = limx→0(0/50) = 0
Therefore, the final answer is:
limx→0cot5xcsc5x = 1 * (-1) * 0 = 0
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If the distance from home to school is 1.3 miles what is the difference in miles from her school to the grocery store
Answer:
Well, the full question needs to be explained first. It very well is 7.4 miles back to the grocery store.
Step-by-step explanation"
First you have to take the time from home to school, x2 then divided 1.2 because the grocery store is a different coordinate than school, and multiply by your needing.
Find all the whole numbers for which the double inequality is true.
-5
** I will mark brainliest to whoever solves it)
Answer:
5 < y < 2 This asks for all whole numbers y which are greater than 5 and also less than 2. That's a contradiction so there are no such whole numbers.
Step-by-step explanation:
I need help please just for the lest question.
Answer:
250, 4000, 20250
Step-by-step explanation:
\(\frac{2}{5}a^{4}\)
2/5 × 5^4 = 250
2/5 × 10^4 = 4000
2/5 × 15^4 = 20250
Hope this helps! :)
3÷14 I ain't got enough money for tutoring so i have to struggle to find answers can someone help me please.
Answer:
0.21428571428
Step-by-step explanation:
hope it helps
2. It takes 6 eggs to make 2 loaves of banana bread. How many eggs are needed to make 1 loaf of
bread?
Answer:
3
Step-by-step explanation:
Answer:3
Step-by-step explanation: because half of 6 eggs are need to make 2 loaves so split that in half and you have 3
Calculate the perimeter of the triangle shown below. 16 yd 16 yd 16 yd
Answer:
48
Step-by-step explanation:
16+16+16 or 16 x 3
hope it helps <3
Answer:
48 yards
Step-by-step explanation:
To calculate the perimeter you have to add the outline of the triangle together.
16 + 16 + 16 = 48
You can also do 16 × 3 = 48
So, your answer is 48 yards.
Have a great day! :)
If 3 cups of flour weigh 12 oz., how many cups of
flour are there in 4 lb. of flour?
Answer:
16 cups
Step-by-step explanation:
In order to find the answer to this question we need to solve it using what we know about unit measurements.
3 cups = 12 oz
\(12\div 3 = 4\)
1 cup = 4 oz
1lb = 16 oz
\(4\times4=16\)
4 cups = 1lb
16 cups = 4lb
=16 cups
Hope this helps.
Please help I forgot how to do this?
Answer:
97°
I forgot how to explain. Ah, I'm sorry. Please let me know if it's wrong but I'm sure it's right.
A factory that makes granola bars uses 1⁄6 of a barrel of raisins in each batch. Yesterday, the factory used 5⁄6 of a barrel of raisins. How many batches did the factory make yesterday?
Answer:
5 Batches.
Step-by-step explanation:
5*1/6 = 5/6
Solve the following inequality: 38 < 4x+3+7 – 3x.
a. x < 28
b. x > 28
c. x < 4
d. x > 4
To solve the given inequality, first we have to simplify the given inequality.38 < x + 10 After simplification we get, 38 - 10 < x or 28 < x.
The correct option is B.
The given inequality is 38 < 4x + 3 + 7 - 3x. Simplify the inequality38 < x + 10 - 4x + 3 + 7 - 3x38 < -x + 20 Combine the like terms on the right side and simplify 38 + x - 20 < 0 or x + 18 < 0x < -18 + 0 or x < -18. The given inequality is 38 < 4x + 3 + 7 - 3x. To solve the given inequality, we will simplify the given inequality.
Simplify the inequality38 < x + 10 - 4x + 3 + 7 - 3x38 < -x + 20 Combine the like terms on the right side and simplify 38 + x - 20 < 0 or x + 18 < 0x < -18 + 0 or x < -18. Combine the like terms on the right side and simplify38 + x - 20 < 0 or x + 18 < 0x < -18 + 0 or x < -18.So, the answer is x > 28. In other words, 28 is less than x and x is greater than 28. Hence, the answer is x > 28.
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round 1021.857923 to 3 significant figures
Answer:
Step-by-step explanation:
102
Which of the following is not a factor in capacity planning?
a) approach used to measure capacity
b) economies of scale
c) prepare to deal with capacity in "chunks"
d) proximity to suppliers
e) identify the best operating level
The option that is not a factor of capacity planning is the option d
d) Proximity to suppliers
What is capacity planning?The process of ascertaining the production capacity an organization needs in order to meet changing demand for the products and services of the organization is known as capacity planning.
The factors considered in capacity planning are factors which include the capacity measurement approach, the economies of scale, preparedness to deal with the capacity in chunks, and activities towards identifying the best operating level.
Therefore, from the listed options, the option that is not a factor in capacity planning is the option (d) proximity to suppliers
Other aspects of the operations of an organization, such as supply chain management and logistics can be affected by the proximity of suppliers, but the proximity of suppliers is not directly linked to the determination process for the production capacity needed to meet the market demand.
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5) Choose the graph which represents the solution to the inequality:
5<-5+2x
Where is the Graph.
Step-by-step explanation:
LOL
\Write the equation of the line that passes through the points (5,−1) and (2,-1)
Answer:
y = -1
Step-by-step explanation:
Right away, you should notice that the y-coordinate is the same between both points. If it's a straight line (which you can assume), that means it's a horizontal line at y = that y-coord, or y = -1 in this case.
PLEASE PLEASE PLEASE HELP MEEE!
Answer:
1: 2
3: 14
10: 56
Step-by-step explanation:
Just a simple equation.
The cost of 54 tickets to a water park is $972. Each ticket costs the same amount. Which table or equation represents the relationship between the number of tickets, t and the total cost of the tickets, c?
Can somebody plz help answer all the (adding integers) questions!!! That would be amazing :D only answer if u remmeber.
(Grade7math) WILL MARK BRAINLIEST :D
Answer:
5. 7+3=10
6. 5+-2=3
7. -3+6=3
8. -6+1=-5
9. 4+-5=-1
10.6+-9=-3
11. 8+-13=-5
12.-10+3=-7
Answer:
(+7)+ (+3)
==+10
(+5)+(_2)
=+3
(_3)+(+6)
=+3
(_6)+(+1)
=_5
(+4)+(_5)
=_1
(+6)+(_9)
=_3
(+8)+(_13)
=_5
(_10)+(+3)
=_7
This year (10 years after you first took out the loan), you check your loan balance. Only part of your payments have been going to pay down the loan; the rest has been going towards interest. You see that you still have $112,681 left to pay on your loan. Your house is now valued at $180,000.
Over the past 10 years, you have paid off $1,80,000 - $1,12,681 = $67,319 of the original loan.
This amount represents the reduction in the loan balance over the years. It is essential to consider that your monthly payments were not entirely directed towards the loan principal; a portion went towards paying interest charges. As a result, the loan balance was gradually reduced over time.
The interest on the loan accumulated each month, which affected the allocation of your payments. Initially, a significant portion of your payments likely went towards interest, with a smaller fraction reducing the principal balance. However, as time progressed, the interest portion decreased, and more of your payments started chipping away at the loan's principal.
It is crucial to recognize the impact of interest on loans, especially over extended periods. The difference between the current value of your house and the remaining loan balance illustrates the progress you have made in building equity over the years. As you continue making payments, the loan balance will further diminish, and your equity will continue to grow.
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The function above models the height h, in feet, of an object above ground t seconds after being launched straight up in the air. What does the number 72 represent in the function?
A) The initial height, in feet, of the object
B) The maximum height, in feet, of the object
C) The initial speed, in feet per second, of the object
D) The maximum speed, in feet per second, of the object
The number 72 is the initial height of the ball before being launched into the sky that is option A is correct.
The function h(t) = −16t² + 110t + 72 is about the equation of height of the ball when it is thrown from the ground. The ball will follow a projectile path and then fall on the ground again.
Now the equation is h(t) = −16t² + 110t + 72 where h(t) is height as a function of time and t is time.
If we put t = 0, then
h(0) = -16(0) + 110(0) + 72
h(0) = 72
that is the height at time t = 0 which is the initial height of the ball before it is thrown.
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Complete Question:
The function h(t) = −16t² + 110t + 72 models the height h, in feet, of an object above ground t seconds after being launched straight up in the air. What does the number 72 represent in the function?
A) The initial height, in feet, of the object
B) The maximum height, in feet, of the object
C) The initial speed, in feet per second, of the object
D) The maximum speed, in feet per second, of the object
A company expects that the number N(x) of a product sold during a week is related to the amount spent on advertising by the function N(x)=-6x3+180x²+2250x + 13,000, where x (with 0 ≤x≤25) is the amount spent on advertising in thousands of dollars. What is the point of diminishing returns?
The point of diminishing returns is
(Simplify your answer. Type an ordered pair. Do not use commas in the individual coordinates.)
The point of diminishing returns is (20.98, 21247.3).
The point of diminishing returns occurs when the marginal cost of producing an extra unit of output exceeds the marginal revenue generated from selling that unit. Mathematically, it is the point at which the derivative of the production function equals zero and the second derivative is negative.
Given the polynomial function N(x) of degree 3, we can find the point of diminishing returns by finding the critical points where the first derivative equals zero and evaluating the second derivative at those points.
The derivative of N(x) is N'(x) = -18x² + 360x + 2250. To find the critical points, we set N'(x) = 0:
0 = -18x² + 360x + 2250
Dividing by -18 simplifies the equation:
0 = x² - 20x - 125
Using the quadratic formula, we find the solutions to the equation:
x₁,₂ = (20 ± √(20² - 4(1)(-125))) / 2(1)
x₁,₂ = 10 ± 5√5
Thus, the two critical points of N(x) are at x = 10 - 5√5 and x = 10 + 5√5.
To determine the point of diminishing returns, we evaluate the second derivative N''(x) = -36x + 360 at these critical points:
N''(10 - 5√5) = -36(10 - 5√5) + 360 ≈ -264.8
N''(10 + 5√5) = -36(10 + 5√5) + 360 ≈ 144.8
From the evaluations, we find that N''(10 + 5√5) is negative while N''(10 - 5√5) is positive. Therefore, the point of diminishing returns corresponds to x = 10 + 5√5.
To find the corresponding y-coordinate (N(10 + 5√5)), we can substitute the value of x into the original function N(x).
Hence, the point of diminishing returns is approximately (20.98, 21247.3).
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Pls Answer!!!! Will make Brainliest!!!
1. Show that (a+bi)^2 = (a+b)(a−b) + 2abi
2. Show that (2x+i)(2x−i) = 4x2 +1
3. Show that (1+i)2 = 2i
Step-by-step explanation:
sorry i sent the wrong image hold on
If f'(c) < 0 then f(x) is decreasing and the graph of f(x) is concave down when x = c. True False Question 4 (1 point). A local extreme point of a polynomial function f(x) can only occur when f'(x) = 0. True False Question 5 (1 point) If f'(x) > 0 when x < c and f'(x) < 0 when x > c, then f(x) has a maximum value when x = C. True False
Question 3: True
Question 4: False
Question 5: True
If the derivative of a function, f'(x), is positive for values of x less than c and negative for values of x greater than c, then it indicates a change in the slope of the function. This change from positive slope to negative slope suggests that the function has a maximum value at x = c.
This is because the function is increasing before x = c and decreasing after x = c, indicating a peak or maximum at x = c.
Question 3: If f'(c) < 0 then f(x) is decreasing and the graph of f(x) is concave down when x = c.
True
When the derivative of a function, f'(x), is negative at a point c, it indicates that the function is decreasing at that point. Additionally, if the second derivative, f''(x), exists and is negative at x = c, it implies that the graph of f(x) is concave down at that point.
Question 4: A local extreme point of a polynomial function f(x) can only occur when f'(x) = 0.
False
A local extreme point of a polynomial function can occur when f'(x) = 0, but it is not the only condition. A local extreme point can also occur when f'(x) does not exist (such as at a sharp corner or cusp) or when f'(x) is undefined. Therefore, f'(x) being equal to zero is not the sole requirement for a local extreme point to exist.
Question 5: If f'(x) > 0 when x < c and f'(x) < 0 when x > c, then f(x) has a maximum value when x = c.
True
If the derivative of a function, f'(x), is positive for values of x less than c and negative for values of x greater than c, then it indicates a change in the slope of the function. This change from positive slope to negative slope suggests that the function has a maximum value at x = c. This is because the function is increasing before x = c and decreasing after x = c, indicating a peak or maximum at x = c.
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Linda had 90 fliers to post around town. Last week, she posted 1/5 of them. This week, she posted 1/3 of the remaining fliers. How many fliers has she still not posted?
The number of fliers that she has still not broadcasted will be 48 fliers.
What is Algebra?Algebra is the study of ideational characters, while logic is the manipulation of all those opinions.
Linda had 90 fliers to post around town. Last week, she posted 1/5 of them. Then the number of fliers staying is given as,
⇒ (1 - 1/5) x 90
⇒ (4/5) x 90
⇒ 72 fliers
This week, she posted 1/3 of the remaining fliers. Then the number of fliers that she has still not broadcasted is given as,
⇒ (1 - 1/3) x 72
⇒ (2/3) x 72
⇒ 48 fliers
The number of fliers that she has still not broadcasted will be 48 fliers.
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a restaurant sells burritos for $8.00 each. The cost of the meat is $1.50 and the cost of the other ingredients is $1.00 for each burrito.
Money made from selling burritos is positive . The cost of making burritos is negative. Profit is the money left after paying the cost.
How much profit would the restaurant make by selling 100 burritos?
1. How much money would the restaurant take in by selling 100 burritos?
Answer:
$550
Step-by-step explanation:
Answer:
The restaurant would take in $550 by selling 100 burritos
Step-by-step explanation:
First, we need to add all the expenses together and multiply by 100
1.50 + 1.00 = 2.50
2.50 x 100= 250
We know that the restaurant would charge $800 in total for the 100 burritos so now we subtract what it costs to make them.
800 - 250 = 550
Our final answer would be $550
Find the factors then solve the quadratic of x^2+9x+20
Step 1: Multiply a and c
a = 1
c = 20
a * c = 20
Step 2: Find factors of +20 that add up to +9
Factors of 20 = 1, 2, 4, 5, 10, 20
The two factors that add up to 9 are 4 and 5.
Step 3: Factor
(x + 4)(x + 5) = 0
Answer: (x + 4)(x + 5) = 0
Hope this helps!
TJ rented a truck to move to a apartment the regular price of a Truck Rental is $200 TJ has a 50% off coupon he wants to know the sale tax of the truck rental
Answer:
$100
Step-by-step explanation:
From the question, we are given the following
Rental price of the truck
percentage off coupon = 50%
Required
Sale tax of the truck rental
Sale tax of the truck rental = 50% of the truck price
Sale tax of the truck rental = 50% of $200
Sale tax of the truck rental = 50/100 * 200
Sale tax of the truck rental = 0.5 * 200
Sale tax of the truck rental = $100
Hence the sale tax of the truck rental is $100
44) 93
O 2 remainder of 6
2 remainder of 7
2 remainder of 4
2 remainder of 5