Answer:
-5 =x
Step-by-step explanation:
15/x = -3
Multiply each side by x.
15 = -3x
Divide each side by -3.
15/-3 = x
-5 =x
Answer:
x = -5
Step-by-step explanation:
\(\sf \frac{15}{x} =-3\)
Multiply both sides by x.
15 = -3x
Divide both sides by -3.
-5 = x
If f(1) = 2 and f(n) = f(n − 1)² + 4 then find the value of ƒ (3).
Answer:
f(3) = 68
Step-by-step explanation:
→ f(1) = 2 ⇒ f(2) = f²(2 − 1) + 4
= f²(1) + 4
= 2² + 4
= 8
………………………………………………
→ f(2) = 8 ⇒ f(3) = f²(3 − 1) + 4
= f²(2) + 4
= 8² + 4
= 64 + 4
= 68
Ethan earns $10 every hour for walking Ms. Barn's two dogs, plus an additional $7
for brushing the dogs after their walk. If Ethan earned $32 on Monday, find
the equation which best represents the situation?
The number of students who are enrolled in
math classes at a local college can be
represented by E= -12w+568, where
E represents the math class enrollment at the
college w weeks after the start of the fall
semester.
During which week will the total enrollment be
520 students?
Answer: 5th week
Step-by-step explanation:
E= -12w+568
520= -12w+568
520+12w=568
12w=48
w=4
4+1=5th week
How to get the Index result in excel
To get the index result in an Excel spreadsheet, you can use the INDEX function.
How can INDEX function be used to get index result?The INDEX function in Excel allows you to retrieve a value from a specific location within an array or range. By providing the array/range and the row and column numbers, you can extract the desired value.
For example, if you want to retrieve the value from the third row and second column of a range, you will use formula "=INDEX(A1:D5, 3, 2)". This will return the value at that specific location in the range. You will adjust row and column numbers based on needs to obtain the desired index result in Excel.
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Sherman has 3 cats and 2 dogs. He wants to buy a toy for eeach of his pets. Sherman has $22 dollars to spend on pet toys. How much can he spend on each pet? Write your answer as a fraction and as amount in dollars and cents.
Answer:
22/5
4 2/5
$4.40
Step-by-step explanation:
Answer:
4 4/10
Step-by-step explanation:
He has 5 pets in all (3 cats, 2 dogs)
Divide 22 with 5
22/5 = 4.4
He can spend $4.40, or in fraction form:
4 4/10 (Mixed fraction)
For c=d(3.14)
What is c when d=100?
Please help answer my question
Answer:
x = 6
Step-by-step explanation:
This is a bit of a tricky equation, and it's what we call an exponential equation since it involves some exponents. The way we begin to solve these kinds of problems is make the base on each side of the equals sign the same. On one side, we have 9 as our base, and on the other side, we have 3 as our base. 9 = 3², so we can rewrite our equation as shown below:
(3²)⁴ˣ⁻¹⁰ = 3⁵ˣ⁻²
From there, we can use the exponent rule (xᵃ)ᵇ = xᵃᵇ to simplify the left side of the equation.
3²⁽⁴ˣ⁻¹⁰⁾ = 3⁵ˣ⁻²
3⁸ˣ⁻²⁰ = 3⁵ˣ⁻²
Since our bases are now the same, we can take just the exponents and turn it into a new equation as shown below:
8x - 20 = 5x - 2
Hopefully at this point, this problem becomes easy for you, but I'll show how I solved this new equation below in case it doesn't make sense.
8x - 20 = 5x - 2
8x - 20 - 5x = 5x - 2 - 5x
3x - 20 = -2
3x - 20 + 20 = -2 + 20
3x = 18
3x/3 = 18/3
x = 6
Hopefully that's helpful! Let me know if you need more help. :)
the function that represents the graph in the image is
help pls home work home qork
Answer:
the answer is this sign >. it means the answer on the left is greater than the one on the right
I Los siguientes conejos representan la cuarta parte de los que compró Doňa
Rosa para su granja ¿Cuántos fueron los conejos que compró?
The total number of rabbits bought by Doña Rose for your farm is 4 times the Number of given rabbits.
The number of rabbits bought by Doña Rose for your farm, we need to consider that the given rabbits represent only a quarter of the total number.
the total number of rabbits as 'x'. According to the information, the given rabbits represent a quarter of 'x', which can be expressed as:
Given rabbits = (1/4) * x
To find the value of 'x', we can multiply both sides of the equation by 4
4 * Given rabbits = x
Therefore, the total number of rabbits bought by Doña Rose for your farm is 4 times the number of given rabbits.
the exact value of 'x'. However, we can state that the total number of rabbits bought is four times the number of the given rabbits.
So, if the given rabbits represent 'n' in quantity, the total number of rabbits bought would be 4n.
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A- (x+4) (4x-1)
B- (x-4)(4x-1)
C-(x+4)(4x+1)
D-(x-4)(4x+1)
D-(x-4)(4x+1) is your answer
Answer:
4x²-15x-4
doing middle term factorization
4x²-16x+x-4
4x(x-4)+1(x-4)
(x-4)(4x+1)
PLEASE HELP I WILL MARK BRAINLIST!!
14: \(\frac{1}{2} = \frac{8}{1}\) \(\frac{x}{y} = \frac{56}{1}\)
56/8 = 7 so multiply 1/2 by 7/1 to get the unidentified fraction "x/y"
1/2 · 7/1 = 7/2 or 3 1/2
15. \(\frac{2}{5} = \frac{x}{100}\)
to get from 100 to 5, you would divide by 20, so to solve for x, multiply 2 by 20, to get a product of 40.
40/100 = 40% or D
16. \(\frac{3}{5} = \frac{12}{x}\)
A
30m3n4-5m4complete factored form of the polynomial
Factor of polynomial m are 0, 6n⁴.
What is polynomial in maths?
A polynomial is an expression in mathematics made up of variables (also known as indeterminates) and coefficients, and it only uses the operations addition, subtraction, multiplication, and non-negative integer exponentiation of the variables. The polynomial x2 4x + 7 is an illustration of one with a single indeterminate x.
= 30m³n⁴ - 5m⁴
= 5m³(6n⁴ - m )
let 5m³(6n⁴ - m ) = 0
5m³ = 0
m = 0
6n⁴ - m = 0
m = 6n⁴
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Help me outttttt !!!!!!!!
Elyas is on holiday in Greece.
He wants to buy a pair of sunglasses for €90
The exchange rate is €1 = £0.875
Elyas says, "The sunglasses cost less than £70"
Using a suitable approximation, show that Elyas is wrong.
Answer:
To convert euros to pounds, we have to multiply the amount in euros by the exchange rate. So, the sunglasses cost 90 * 0.875 = 78.75 pounds.
To use a suitable approximation, we can round the exchange rate to the nearest hundredth, which is 0.88. This makes the calculation easier and gives a close estimate of the actual value.
Using the rounded exchange rate, the sunglasses cost 90 * 0.88 = 79.2 pounds.
We can see that both the exact and the approximate values are greater than 70 pounds, so Elyas is wrong. The sunglasses cost more than 70 pounds
Step-by-step explanation:
PLEASE HELP! Which of the following expressions are equivalent to (x+y) - (-z)?
A) (x+y)-z
B)x+(y+z)
C) none of the above
Answer:
c
Step-by-step explanation:
none of them equal (x+y)-(-z)
nvmnvmnvmvnmvnmvnvnmvv
Answer:
ur right
Step-by-step explanation:
The region bounded by y = e−x2, y = 0, x = 0, and x = b (b > 0) is revolved about the y-axis. (Round your answers to three decimal places.) (a) Find the volume of the solid generated when b = 2.
Answer:
0.982 * \(\pi\) = 3.085 cubic units
Step-by-step explanation:
To find the volume of the solid generated by a region that is bounded by lines where x = 0 , x (b) = 2 we apply the formula given in the attachment below
the required region boundaries are
y = e^-x2 , y = 0 , x = 0, x = b ( b >0)
attached below is a detailed solution of the problem
Anita purchased a stuffed animal for $10.04. The cashier gave Anita $4.76 in change. How much money did Anita give the cashier?
Answer:
14.8
Step-by-step explanation:
Answer: Anita gave $14.80 to the cashier.
Step-by-step explanation:
Add $10.04 and $4.76 together to find your total.
$10.04 + $4.76 = $14.80
Meaning, Anita gave $14.80 to the cashier.
A type of bacterium triples in population every hour. Assuming you start with
90 bacteria, the formula that models the number of bacteria at the beginning
of hour nis:
a(n) = 90.3n-1
How many bacteria will there be at the beginning of hour 5?
Answer:
7290
Step-by-step explanation:
Put 5 in the formula and evaluate.
a(5) = 90·3^(5-1) = 90·81 = 7290
There will be 7290 bacteria at the beginning of hour 5.
The expression 5x^2 + 25x + 70 can be used to estimate the height, in
meters, of a toy rocket x seconds after it is launched from a platform.
How many seconds does it take the rocket to hit the ground?
Answer:
Hence x is 7 seconds
Step-by-step explanation:
hope this helps
what is the square root of 36 divided by 5 times 12 divided by the cube root of 343 rounded to the nearest 2 decimal point
Answer:
2.06
Step-by-step explanation:
You want the value of the numerical expression √36÷5×12÷∛343.
CalculatorThis is a straightforward calculator problem. Your pocket calculator, or any of numerous calculator apps, online calculators, or spreadsheets can evaluate this expression for you.
The attachment shows the result is 2.06.
__
Additional comment
As expressed in this problem statement, the expression is ...
\(\dfrac{\sqrt{36}\times12}{5\times\sqrt[3]{343}}=\dfrac{6\cdot12}{5\cdot7}=\dfrac{72}{35}\)
If you mean something else, you need to identify the quantities that need to be considered as a unit.
What is the slope of a line parallel to the line 2x + 3y = 5?
i think its 2/3 but im not sure .
Answer:
D
Step-by-step explanation:
Parallel lines have same slope
Write the equation in slope - intercept form
2x + 3y =5
3y = -2x + 5
Divide the equation by 3
\(y = \frac{-2}{3}x +\frac{5}{3}\)
So, slope = (-2/3)
A student receives a gift card and decides to purchase medium coffees on it at the same coffee shop daily until her
funds are depleted. After purchasing two coffees, her balance is $23.28 (2, 23.28). After buying five coffees, her
balance is $13.20 (5. 13.20). How many total coffees can she buy on the gift card? What was the original balance on
the gift card? Use the graph and table below to help construct a linear function representing this scenario. Type your
solutions in the text box.
Answer:
4x4=shaggy
Step-by-step explanation:
Find the missing angle I think...
Answer:
Step-by-step explanation:
Since this is a test/homework, I'll give you a hint.
A triangle always is 180 degrees. If you add up all the sides, it should be 180.
A horizontal line is 180, if you add up the two sides (or the "line" that is crossing through the horizontal one) it'll be 180.
Just think of it like this: 180 is king. No matter what you add together, if its not 180, its wrong.
Hope this helps!
help appreciated!! trying to catch up on homework, need just 20% more to pass the class!!!
The percentage of data items that lie below the z-score of 3 is 99.87%.
In a normal distribution, the z-score represents the number of standard deviations a particular data point is away from the mean. The table provided gives the percentiles corresponding to different z-scores.
To find the percentage of data items that lie below a z-score of 3, we can look up the corresponding percentile in the table. In this case, the percentile for a z-score of 3 is given as 99.87%.
This means that approximately 99.87% of the data items in a normal distribution are below a z-score of 3.
Similarly, to find the percentage of data items that lie above a z-score of 3, we can subtract the percentage below the z-score from 100%. In this case, it would be 100% - 99.87% = 0.13%.
This means that approximately 0.13% of the data items in a normal distribution are above a z-score of 3.
Thus, these percentages indicate the relative position of the data points within the distribution. It provides a measure of how extreme or rare a particular value is in comparison to the rest of the distribution.
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What is the solution to 3/4a>-16?EOFo a>-21o ac-21 }O a> 21O a <21
Given:
\(\frac{3}{4}a>-16\)To find the solution to this inequality, take the following steps.
Step 1:
Multiply both sides of the inequality by 4
\(\begin{gathered} \frac{3}{4}a\ast4>-16\ast4 \\ \\ 3a>-64 \end{gathered}\)Step 2:
Divide both sides of the inequality by 3
\(\begin{gathered} \frac{3a}{3}>\frac{-64}{3} \\ \\ a>-21\frac{1}{3} \end{gathered}\)ANSWER:
\(a>-21\frac{1}{3}\)How can I find b and c ?
Step-by-step explanation:
a=binod b=binod c= binod
Find the quotient of z₁ by z2. Express your answer in
trigonometric
form.
² - 3 (0 (4) + (*))
Z₁ cos
+/sin
Z₂
²2 = 7 (cos(377)+
COS
8
O A. 7 (cos (577) + i sin (5/77))
8
B.
21(cos(577)+isin (577))
8
OC. 21 cos
21(cos(-7)+ i sin(-77))
O D. 7 (cos(-7) + + sin(-7))
i
+/sin
37T
8
The quotient of z₁ by z₂ in trigonometric form is:
7/21 * (cos(584°) + i sin(584°))
To find the quotient of z₁ by z₂ in trigonometric form, we'll express both complex numbers in trigonometric form and then divide them.
Let's represent z₁ in trigonometric form as z₁ = r₁(cosθ₁ + isinθ₁), where r₁ is the magnitude of z₁ and θ₁ is the argument of z₁.
We have:
z₁ = 7(cos(577°) + i sin(577°))
Now, let's represent z₂ in trigonometric form as z₂ = r₂(cosθ₂ + isinθ₂), where r₂ is the magnitude of z₂ and θ₂ is the argument of z₂.
From the given information, we have:
z₂ = 21(cos(-7°) + i sin(-77°))
To find the quotient, we divide z₁ by z₂:
z₁ / z₂ = (r₁/r₂) * [cos(θ₁ - θ₂) + i sin(θ₁ - θ₂)]
Substituting the given values, we have:
z₁ / z₂ = (7/21) * [cos(577° - (-7°)) + i sin(577° - (-7°))]
= (7/21) * [cos(584°) + i sin(584°)]
The quotient of z₁ by z₂ in trigonometric form is:
7/21 * (cos(584°) + i sin(584°))
Option C, 21(cos(-7°) + i sin(-77°)), is not the correct answer as it does not represent the quotient of z₁ by z₂.
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Please solve this
∫ (log(1 + x ^ 2))/((x + 1) ^ 2) dx
The final result of the integral is:
∫ (log(1 + x²) / (x + 1)²) dx = log(x + 1) - 2 (log(x + 1) / x) - 2Li(x) + C,
where Li(x) is the logarithmic integral function and C is the constant of integration.
We have,
To solve the integral ∫ (log(1 + x²) / (x + 1)²) dx, we can use the method of substitution.
Let's substitute u = x + 1, which implies du = dx. Making this substitution, the integral becomes:
∫ (log(1 + (u-1)²) / u²) du.
Expanding the numerator, we have:
∫ (log(1 + u² - 2u + 1) / u²) du
= ∫ (log(u² - 2u + 2) / u²) du.
Now, let's split the logarithm using the properties of logarithms:
∫ (log(u² - 2u + 2) - log(u²)) / u² du
= ∫ (log(u² - 2u + 2) / u²) du - ∫ (log(u²) / u²) du.
We can simplify the second integral:
∫ (log(u²) / u²) du = ∫ (2 log(u) / u²) du.
Using the power rule for integration, we can integrate both terms:
∫ (log(u² - 2u + 2) / u²) du = log(u² - 2u + 2) / u - 2 ∫ (log(u) / u³) du.
Now, let's focus on the second integral:
∫ (log(u) / u³) du.
This integral does not have a simple closed-form solution in terms of elementary functions.
It can be expressed in terms of a special function called the logarithmic integral, denoted as Li(x).
Therefore,
The final result of the integral is:
∫ (log(1 + x²) / (x + 1)²) dx = log(x + 1) - 2 (log(x + 1) / x) - 2Li(x) + C,
where Li(x) is the logarithmic integral function and C is the constant of integration.
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