Answer:
9.42
Step-by-step explanation:
1.5 is the radius so you plug it into \(\pi r^{2}\) to get about 7.07 than do get the volume of a sphere you multipy by (4/3). I used my phone so you may want to use a ti84 so you can reuse the answers to get it more exact. It is a rounded answer with rounds at each step.
a square has an area equal to 4s^2-1 square units. when this expression is factored, which is one of its factors
Answer:
B
Step-by-step explanation:
(section 7.3, problem 20) use the open space to show all of your work. this includes: sketching the curves, finding and labeling the points of intersection, setting up the appropriate definite integral(s) and evaluating them. place your numerical answer for the area of the region in the box. leave your answer in exact form
The solution of the expression is x=0 and it is the only solution that is an integer.
An expression in mathematics is a combination of numbers, variables, and mathematical operations that evaluates to a numerical value or an algebraic expression.
To do this, we need to pick a range of x values and substitute them into each equation to find the corresponding y values.
Next, we need to find the points of intersection between the two curves. These are the x values where the two curves cross each other and have the same y value. To find these points, we will set the two equations equal to each other and solve for x:
=> x=5x−x³
Expanding this equation, we get
=> 4x³+x=0.
Factoring this equation, we get
=> x(4x²+1)=0.
This gives us two solutions, x=0 and x=±i√(1/4), where i is the imaginary unit. Since x can only take on real values, x=0 is the only solution that is an integer.
Complete Question:
Use the open space to show all of your work. This includes: sketching the curves, finding and labeling the points of intersection, setting up the appropriate definite integral(s), and evaluating them. Place your numerical answer for the area of the region in the box. Leave your answer in exact form.
y = x,
y = 5x−x³
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g(x) = -4x + 5, find g(5).
Answer:
-15
Step-by-step explanation:
g(x) = -4x + 5, find g(5)
Let x = 5
g(5) = -4*5 +5
= -20 +5
= -15
Malcolm has $50 gift card to a local car wash and order is the ultimate car wash each visit is $8.95
The amount cheaper is the car washes Malcolm orders than the car washes Martha's order is $13.
The correct answer choice is option B.
How much cheaper is the car washes Malcolm orders than the car washes Martha's order?Malcolm's gift card = $50.
Cost Malcolm's car wash per visit = $7
Martha's gift card = $180
Cost Martha's car wash per visit = Difference between gift card balance of first and second visit
= $180 - $160
= $20
How cheap is the car washes Malcolm orders than the car washes Martha's order = $20 - $7
= $13
Therefore, Malcolm's car wash is cheaper than Martha's car wash by $13
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Suppose a life insurance company sells a
$280,000
1-year term life insurance policy to a
20-year-old
female for
$270.
According to the National Vital Statistics Report, 58(21), the probability that the female survives the year is
0.999544.
Compute and interpret the expected value of this policy to the insurance company.
Answer:
$142.32, profit on sale of the policy
Step-by-step explanation:
You want to know the expected value of a $280,000 life insurance policy sold for $270, if the probability the insured will live for the year is 0.999544.
CostThe insurance company expects to have to pay the $280,000 death benefit for 0.000456 of the policies issued. That means their expected payout on any one policy is ...
0.000456 × $280,000 = $127.68
ProfitThe company gets a premium of $270 for the policy, so the expected value of the policy to the company is ...
$270 -127.68 = $142.32
The expected value of the policy to the company is $142.32.
This represents its profit from sale of the policy.
__
Additional comment
Of course, the company has expenses related to the policy, perhaps including a commission to the agent selling it, and expenses related to handling claims. That is to say that not all of the difference between the premium and the average death benefit is actually profit. It is what might be called "contribution margin."
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Multi step equations with variables only
3x-2(x-1)=6
Plz asap can y’all explain step by step plzzz it’s for a homework
S1. Three numbers are in the ratio of 2:3:4. The sum of their cubes is 3,34,125. Find the numbers.
Answer:
Step-by-step explanation:
sum of their cubes=0.334125
The ratio of three numbers is 2:3:4.
Let the numbers be 2x, 3x and 4x.
Cubes of numbers = (2x)^3, (3x)^3, (4x)^3 = 8x^3, 27x^3, 64x^3
(8x^3) + (27x^3) + (64x^3) = 99x^3
99x^3 = 0.334125
x^3 = (0.334125) / 99
x^3 = 0.003375
x^3 = (0.15)^3
x = 0.15
Therefore, the numbers are (2 x 0.15), (3 x 0.15) and (4 x 0.15) i.e. 0.3, 0.45 and 0.6
i need help solving for x
Let L1 be a line that passes through the points (–2, 9) and (1, 3), and let L2 be the line that passes through the points (–4, 10) and (3, –4). Determine whether L1 and L2 are parallel
The two lines L1 and L2 are parallel
How to identify if the lines are parallelFor two lines to be parallel the slope must be equal, hence we calculate the slope of the two lines
The slope, m of the linear function L1 is calculated using the points (–2, 9) and (1, 3)
m = (y₀ - y₁) / (x₀ - x₁)
m = (9 - 3) / (-2 - 1)
m = (6) / (-3)
m = -2
The slope, m of the linear function L2 is calculated using the points (–4, 10) and (3, –4)
m = (y₀ - y₁) / (x₀ - x₁)
m = (10 + 4) / (-4 - 3)
m = (14) / (-7)
m = -2
The lines are parallel
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Need help ASAP
Write an algebraic expression to represent the verbal expressions
Answer:
4*x^2+5x
Explanation:
9.
Use vertex form to write the equation of the parabola.
A. y = (x + 3)^2 - 3
B. y = 2(x - 3)^2 - 3
C. y = 2(x - 3)^2 + 3
D. y = 2(x + 3)^2 - 3
Answer:
Step-by-step explanation:
hmm
A regular triangular pyramid has a base length of 4.6 centimeters and a slant height of 4 centimeters.
What is the lateral area of the pyramid?the height of the triangular base is approximately 4 cm, what is the surface area of the pyramid?
cm?
Answer:
hsjsbdjkdowjd nskdkndbdndkckdbnd
!
A washer and dryer cost a total of 928$. The cost of the washer is three times the cost of the dryer. Find the cost of each item.
Answer:
Cost of Washer = $696
Cost of Dryer = $232
Step-by-step explanation:
Start by making and equation, put a variable for the missing prices, let's say the cost of the dryer is 'x' and since the cost of the washer is three times, it will be '3x'.
Put the equation together, so we can add the x variables together.
3x + x = 4x
The total cost will be what the '4x' is equal to.
4x = 928
Going back to algebra, we solve the equation by dividing both sides by 4.
x = 232
Remember x is the variable we gave to the dryer, so now we must find the cost of the washer. In order to do this, we will have to multiply it by 3.
3x
3(232) = 696.
To check the answer, we can add them together to make sure we get the total cost.
696 + 232 = 928
Bob needs to wash the windows on his house. He has a 25-foot ladder and places the base of the ladder 10 feet from the wall on the house. How far up the wall will the ladder reach?
Answer:
22.9 ft
Step-by-step explanation:
the height of the wall that reached by the ladder = √ (25²-10²)
=√(625-100)
=√525
= 22.9 ft
You take random sample of 200 people from Salinas and find that their average income is $48,000 per year
with a standard deviation of $9000. Also assume that population incomes are normally distributed.
Approximately how many people make between $39,000 and $57,000?
X
Answer format: Enter a positive integer
We have that The Total Number of People is
\(X\approx 137\)
From the question we are told that
sample of 200
income is $48,000 per year
standard deviation of $9000
Generally the equation for the Ratio of people is mathematically given as
\(Y=P(\frac{39000-48000}{9000}<z<\frac{57000-48000}{9000})\\\\\Y=P(z<1))-(1-p(z-1))\\\\Y=0.8413-0.1582\\\\\Y=0.6826\)
Therefore
The Total Number of People is
\(X=0.6826*200\\\\X\approx 137\)
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Find a mathematical model for the following statement. "A varies jointly as both b and h."
We have the following statement: "A varies jointly as both b and h."
We have to find a mathematical model for this statement.
When a variable varies jointly as other variables, it means it has a proportional relationship to them.
In this case, we have a variable A, which caries jointly with b and h, so we can write a general model as:
\(A=k\cdot b\cdot h\)where k is the constant of proportionality and it can take any non-zero value.
For example, if k=2, we have:
\(A=2bh\)Then, for any change in b or h (or both together), we have a proportional variation in A.
Answer:
The general model is A = k*b*h.
calculate the average speed of a cyclist who travels 30 km in 3 hr
\(\texttt{speed} = {\dfrac{d}{t}\)
distance = 30 km
t = 3 hr
\(\texttt{speed}=\dfrac{30}{3}\)
\(\fbox{\texttt{speed} = 10 km/hr}\)
you sailed 0.032 units to the left and found treasure at 0.248 units find where the ship started
what is the property of 3x(5x7)=(3x5)7
The property you are referring to is called the associative property of multiplication. According to this property, when multiplying three numbers, the grouping of the numbers does not affect the result. In other words, you can change the grouping of the factors without changing the product.
In the equation you provided: 3x(5x7) = (3x5)7
The associative property allows us to group the factors in different ways without changing the result. So, whether we multiply 5 and 7 first, or multiply 3 and 5 first, the final product will be the same.
Angles that are exactly 90°. What shape has all right angles ? a) a b) c)
798/8×41 rounded to one significant figure
Step-by-step explanation:
the answer is 4000
yep for sure
PLEASE HELP ME ASAP ILL GIVE BRAINLIEST
The absolute value function that matches the graph is given as follows:
y = -|x + 1| + 1.
How to define the absolute value function?An absolute value function of vertex (h,k) is defined as follows:
y = a|x - h| + k.
In which a is the leading coefficient.
The coordinates of the vertex in this problem are given as follows:
(-1, 1).
Hence:
y = a|x + 1| + 1.
The function is reflected over the x-axis with a slope of -1, hence the leading coefficient a is given as follows:
a = -1.
Thus the function is:
y = -|x + 1| + 1.
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Evaluate the function.
f(x) = 5-(7+x)+2, find f(3).
Answer:
-3
Step-by-step explanation:
For f = 5 - (7 + x) + 2, substitute x with 3.
f = 5 - (7 + 3) + 2
f = 5 - 10 + 2
f = -5 + 2
f = -3
I hope this helps!
so I'm doing some homework and I'm wondering how I do a slope intercept form equation, the question provides the slope(1/4) and the intercept (2)
Answer:
The equationin slope-intercept form is
\(y=\frac{1}{4}x+2\)Explanation:
The equation of a line in slope-intercept form is written as:
y = mx + c
Where m is the slope of the given line, and c is the y-intercept.
From the question,
slope, m = 1/4, and y-intercept, c = 2
Using these, the equation of the line is:
\(y=\frac{1}{4}x+2\)Aiden goes out to lunch. The bill, before tax and tip, was $13.15. A sales tax of 5% was
added on. Aiden tipped 18% on the amount after the sales tax was added. How much
was the sales tax? Round to the nearest cent.
Answer:
$1.98.
Step-by-step explanation:
Given the following question:
5% of $13.15
To find the answer we simply use the formula to calculate percentage.
\(\frac{t\times i}{100}\)
\(\frac{15\times13.15}{100} =15\times13.15=197.25\div100=1.9725\)
\(1.9725\)
Round to the nearest cent:
\(1.9725\)
\(2<5\)
\(1.98\)
The sales tax was "$1.98."
Hope this helps.
put down a random number get brainly points
Answer:
2658
Step-by-step explanation:
Answer: Huh
Step-by-step explanation:
Why would you throw away points
Los dueños de un restaurante exitoso quieren un préstamo de $50,000 para renovar la cocina y ampliar el comedor. Esperan que las mesas extra agreguen entre $2,000 y $5,000 a los ingresos mensuales del restaurante. El banco está dispuesto a permitir que la empresa tenga un préstamo a plazo intermedio de $50 000 durante cinco años a una tasa de interés del 6,5 por ciento. Calcule el pago mensual y explique si tomar este préstamo es una decisión comercial inteligente.
The monthly Payment for the loan is approximately $271.24.
To calculate the monthly payment for the loan, we can use the formula for calculating the monthly payment on an intermediate-term loan. The formula is:
Monthly Payment = (Loan Amount * Monthly Interest Rate) / (1 - (1 + Monthly Interest Rate)^(-Number of Months))
Given:
Loan Amount = $50,000
Interest Rate = 6.5% per year
Number of Years = 5
First, we need to convert the annual interest rate to a monthly interest rate. Since there are 12 months in a year, the monthly interest rate is:
Monthly Interest Rate = (6.5% / 100) / 12 = 0.00541667
Plugging in the values into the formula, we get:
Monthly Payment = ($50,000 * 0.00541667) / (1 - (1 + 0.00541667)^(-5 * 12))
= $271.24
Therefore, the monthly payment for the loan is approximately $271.24.
The owners of the restaurant want to use the loan to renovate the kitchen and expand the dining room, which they expect will generate additional monthly revenue between $2,000 and $5,000.
If we assume a conservative estimate of $2,000 per month in additional revenue, the loan payment of $271.24 represents approximately 13.56% of the additional revenue. This means that the owners would still have a significant portion of the additional revenue available for other expenses or profit.
On the other hand, if we consider the higher estimate of $5,000 per month in additional revenue, the loan payment would represent only about 5.42% of the additional revenue, leaving a substantial amount of money for other purposes.
Considering these calculations, it appears that taking this loan is a smart business decision. The monthly payment is manageable and leaves a significant portion of the additional revenue for the restaurant's operation and potential profit. However, it is essential for the owners to ensure that the projected additional revenue is realistic and sustainable to cover the loan payment and other business expenses.
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If a storage tank is holding 450 litres when it is three quarters full, how much will it contain when it is two thirds?
Answer:
400 litres
Step-by-step explanation:
I ONLY HAVE 5 minutes HELP!!!
Alvarez has $650 deposited into his bank account. The account earns simple interest of 6,5% per year. No other money is added or withdrawn from the account
for a period of four years. What is the total amount of money in the account after four years?
$143
O $685.75
C $793
D 8805.24
Answer:
685.75
Step-by-step explanation:
650*0.055+650
Find the surface area of this cube. Be sure to include the correct unit in your answer
Answer:
here,
area=6a^2
now,
area= 6 × 4^2
= 6 × 16
= 96cm^2