For y = 3x - 2x2 +5x3, show how to find the value for y, when x = 3. Show your work

Since there are 4 people and they each spent 4 hours working, all we have to do is multiply the number of people (4) by the amount of hours each person spent (4)

4 x 4 = 16

Therefore, the total amount of hours is 16

Hope this helps you

-AaronWiseIsBae

Answer:

16 hours

Step-by-step explanation:

Given: There are 4 people in your crew.

Each spent 4 hours of laying sod.

To find the person hours, we have to multiply the number of people (4) by the amount of hours each person spent (4).

Total number of hours = Number of persons * Number of hours spent

Total number of hours = 4 x 4 = 16 hours

Therefore, the total amount of hours is 16.

Answer:

Step-by-step explanation:

x2+3/x2-4x+3

Answer:

x^2+3/(x-1)(x-3)

Step-by-step explanation:

[tex]7x > -35\qquad|\text{divide both sides by 7}\\\\x > -5\\------------------------------------\\\\3x\leq30\qquad|\text{divide both sides by 3}\\\\x\leq10\\\\Answer:\ b)\ -5 < x\leq10[/tex]

Why hello there

The correct answer is B

If my answer helped please mark me as brainliest thank you and have the best day ever!

J(1 , 0); N(5, 0) ; M(5 , -3) and P(2 , -5)

Translation (x,y) -->(x-4, y+4)

J'(-3,4), N'(1, 4) ; M'(1 , 1) and F'(-2 , -1)

Answer is C)

J'(-3,4), N'(1, 4) ; M'(1 , 1) and P'(-2 , -1)

To solve this equation, distribute, combine like terms, and isolate the variable, x.

To solve this equation, we need to simplify both sides and isolate the variable, x.

Starting with the left side, distribute the 3 to the terms inside the parentheses: 3x - 15 - 5x = 25 + 6x.

Combine like terms on both sides of the equation: -2x - 15 = 25 + 6x.

Add 2x to both sides of the equation and add 15 to both sides: -15 - 25 = 6x + 2x.

Simplify the equation: -40 = 8x.

Finally, divide both sides by 8 to solve for x: x = -5.

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Answer:

B. $1,449.54

Step-by-step explanation:

That's the answer

Answer:

A. 12

Step-by-step explanation:

i= use complicated conjugate to search out definite quantity of 8 + 12i

i = 12i

i= twelve × ei 90°

i = twelve × (cos 90° + i sin 90°)

r = |i| = twelve

The absolute value of the complex number 8 + 12i is found by squaring the real part, squaring the imaginary part, adding these two results, and then taking the square root. This results in the square root of 208.

The absolute value of a complex number a + bi is calculated through the formula sqrt(a² + b²). So, to find the absolute value of the complex number 8 + 12i, we substitute a with 8 and b with 12. We can perform the calculations as follows:

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A

the word 'of' means to multiply

0.45 × 80 = 36

Final answer:

To calculate the interest after 6 months with a principal of $750,000 and an annual interest rate of 5%, you need to convert the annual rate to a monthly rate and then use the formula Interest = Principal × Rate × Time. The interest after 6 months is $1,562.50.

Explanation:

To calculate the interest after 6 months, we can use the formula:

Interest = Principal × Rate × Time

Here, the principal is $750,000, the annual interest rate is 5%, and the time is 6 months.

First, we need to convert the annual interest rate to a monthly rate:

Monthly interest rate = Annual interest rate / 12

Monthly interest rate = 5% / 12 = 0.4167%

Now, we can calculate the interest:

Interest = $750,000 × 0.4167% × 6/12

Interest = $1,562.50

Answer:

 [tex]x^2-12x+36= -6+36[/tex]

Step-by-step explanation:

Equation : [tex]x^2-12x = -6[/tex]

General equation : [tex]ax^2+bx+c=0[/tex]

So,we need to add and subtract [tex](\frac{b}{2})^2[/tex] for completing square.

So, next step of completing square :

 [tex]x^2-12x+6^2-6^2= -6[/tex]

 [tex]x^2-12x+36= -6+36[/tex]

Hence Step 2 shows lamar's next step and the solution to the equation

The solution to the equation after completing the square is:

(x - 6)² = 30

Lamar starts with the equation x² - 12x = -6.

Step 2: To complete the square, Lamar takes the coefficient of the x term, which is -12, divides it by 2, and then squares it. In this case, (-12/2)² = 36.

Lamar adds 36 to both sides of the equation to maintain its balance. By doing so, he effectively creates a perfect square trinomial on the left side of the equation.

x² - 12x + 36 = -6 + 36

Simplifying the right side, -6 + 36 equals 30.

The equation now becomes:

x² - 12x + 36 = 30

Now, Lamar can rewrite the left side of the equation as a perfect square. The left side is (x - 6)² because (x - 6)(x - 6) equals x² - 12x + 36.

(x - 6)² = 30

Thus, the solution to the equation x² - 12x = -6, after completing the square, is (x - 6)² = 30.

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(-3j²k³)²(2j²k)³ = When a power is raised to a power the exponents have to be multiplied.​

​= (-3²j⁽²*²⁾k⁽³*²⁾)(2³j⁽²*³⁾k³) = We can take out the constants

​= (9)(8)(j⁴k⁶)(j⁶k³) = We can group the same variables

= 72(j⁴j⁶)(k⁶k³) = When multiplying two powers that have the same base, you have to add the exponents.​

= 72 j⁽⁴⁺⁶⁾k⁽⁶⁺³⁾ = 72j¹⁰k⁹​

​Answer = 72j¹⁰k⁹

​Hope this helps!​​​​

​​[tex]\textit{\textbf{Spymore}}[/tex]​​​​​​

Answer:

Option C, 18/24 = 75%

Step-by-step explanation:

Patients who were addicted to cocaine were divided into 3 groups of 24.

Each group was treated with three different drugs. One group of 24 patients were put on Lithium for treatment out of 24 patients who relapsed were 18.

So conditional relative frequency for relapse among patients who took Lithium would be :

Relative frequency of patients = (patients relapsed) / (total number of patients)

Relative frequency = [tex]\frac{18}{24}[/tex] = 75%

Option C, 18/24 = 75% would be the answer.

460 cm

note that 1m = 100 cm, thus

4.6m = 4.6 × 100 = 460 cm

Answer:

4256

Step-by-step explanation:

there is a point discontinuity ( hole ) at (- 6, - 3 )

factor the numerator/denominator

f(x) = [tex]\frac{(x-6)(x+6)}{4(x+6)}[/tex]

the factor (x + 6) cancels leaving the simplified version of f(x)

f(x) = [tex]\frac{x-6}{4}[/tex]

the removal of the factor (x + 6) from the numerator/denominator means there is a discontinuity at x + 6 = 0 , that is x = - 6

f(- 6 ) = [tex]\frac{-6-6}{4}[/tex] = - 3

there is a point discontinuity ( hole ) at (- 6, - 3 )

By setting up an equation with x as the cost of Tanya's items, we find that each of Tanya's items cost $9.00. Tony's items, being $2.25 cheaper, cost $6.75 each. The solution is checked by ensuring both Tanya's and Tony's total expenditure was equal.

The question asks us to find the individual cost of items purchased by Tanya and Tony at a store, given that Tony's items each cost $2.25 less than Tanya's but both spent the same amount overall.

Equation Setup

Let x represent the cost of one of Tanya's items. Since Tanya bought 3 items, she spent 3x dollars. Tony's items each cost $2.25 less, so they cost (x - $2.25) each. Tony bought 4 items, spending 4(x - $2.25). Since both spent the same amount:

3x = 4(x - $2.25)

Solving the Equation

To solve for x:

So, each of Tanya's items cost $9.00.

Checking the Solution

To verify:

Both totals match, confirming that the solution is correct.

Tanya's items each cost $9.00, while Tony's items, costing $2.25 less, each cost $6.75.

y=20,000-.10x

with x being the number of years

Answer:

[tex]y=\$20,000\cdot (0.90)^x[/tex]

Step-by-step explanation:

We have been given that Kelly bought a new car for $20,000. The car depreciates at a rate of 10% per year. We are asked to write an equation to model the car's value.

Since car's value depreciates by 10% per year, so value of car is depreciating exponentially.

We know that an exponential decay function is in form [tex]y=a\cdot (1-r)^x[/tex], where

a = Initial value,

r = Decay rate in decimal form.

Let us convert 10% into decimal form as:

[tex]10\%=\frac{10}{100}=0.10[/tex]

Upon substituting our given values in decay formula, we will get:

[tex]y=\$20,000\cdot (1-0.10)^x[/tex]

[tex]y=\$20,000\cdot (0.90)^x[/tex]

Therefore, our required equation would be [tex]y=\$20,000\cdot (0.90)^x[/tex].

Answer:

he missed 5 targets

Step-by-step explanation:

Hey there!!

Let's take the first number an the smallest number as ' x '

Then, the second consecutive even integer would become ' x + 2 '

Third integer ' x + 4 '

Hence, adding them up, we get,

x + x + 2 + x + 4

... 3x + 6

This is equal to 4 times the smallest number.

We got the smallest number as ' x '

Hence, the final equation :

... 3x + 6 = 4x

Hope my answer helps!!

Answer:

45%

Step-by-step explanation:

To find the percent, we write the information as part/whole:

99/220

Now we convert to a decimal by dividing:

99/220 = 99÷220 = 0.45

Lastly, multiply by 100:

0.45(100) = 45

Final answer:

The equation that demonstrates the additive inverse property is B. 6 + (-6) = 0, where 6 and -6 are additive inverses of each other.

Explanation:

The equation that illustrates the additive inverse property is B. 6 + (-6) = 0. The additive inverse property states that for any number 'a', there is a number '-a' such that 'a' plus '-a' equals zero. This is because adding a number to its additive inverse (which is the negative of the number) will result in zero.

Examples demonstrating the additive inverse include subtracting a positive number and changing its sign before operating the addition, for instance, 5-(+3) results in 5-3, which equals 2. Conversely, if you subtract a negative number, like subtracting -6 from 2, you would perform 2-(-6) which equals 2+6, resulting in 8.

Answer: C. Weak Positive

Step-by-step explanation:

In a scatter plot , a positive correlation is a relationship between the two variables x and y  in which if value at x axis increases, then other value at y axis also increases.

In the given scatter plot the the association between variables x and y is a weak positive correlation because there is a lower likelihood in the relationship between variables.

[tex]A.\ (-2,\ 0)\\\\substitute\ to\ y=x+2\\\\0=-2+2\\0=0\ CORRECT\\\\substitute \ to\ (x+1)^2+(y-4)^2=9\\\\(-2+1)^2+(0-4)^2=9\\(-1)^2+(-4)^2=9\\1+16=9\\17=9\ \ FALSE[/tex]

[tex]B.\ (1,\ -1)\\\\substitute\ to\ y=x+2\\\\-1=1+2\\-1=3\ \ \ FALSE[/tex]

[tex]C.\ (2,\ 4)\\\\substitute\ to\ y=x+2\\\\4=2+2\\4=4\ \ \ CORRECT\\\\substitute\ to\ (x+1)^2+(y-4)^2=9\\\\(2+1)^2+(4-4)^2=9\\3^2+0^2=9\\9+0=9\\9=9\ \ \ CORRECT[/tex]

[tex]D.\ (-1,\ 4)\\\\substitute\ to\ y=x+2\\\\4=-1+2\\4=1\ \ \ \ FALSE[/tex]

Solution

Step 1: Isolate the variable x and plug in the values of x in the second and third equations.

Step 2: Isolate variable y and solve for y.

We get the value of y = 5/26

When we substitute the value of y , 1 = 0 which is not true.

Therefore, this system has No Solution.

Answer: No solution

The amount of markup is $9.35 .The selling price of algebra1  books  after 55% increment is $26.35

If there is x% increment in y then the increment will be (x/100)*y and the  new amount after x% increment will be now  y + (x*y)/100

A  bookstore buys algebra 1 books at a wholesale price of $17 each.

Initial price of algebra 1 book was = $17

There is 55% increment in books price before selling

55% of initial price = (55/100)*17 = 935/100= $9.35

The selling price = wholesale price + 50% increment = 17 + 9.35 =26.35

Therefore, the amount of markup or increment is $9.35 the selling price of the algebra 1 books after 55% markup is $ 26.35.

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answer : D

A. (6 × 7) + 6 = 48

Associative property of multiplication . Here we have +6 . there is a + sign inbetween.  so it does not comes under Associative property of multiplication

B. 6 × (4 + 2) = 36

Here we have 4 +2 . there is a + sign inbetween.  so it does not comes under Associative property of multiplication

C. (6 + 4) × 2 = 20

Here we have 6 + 4 . there is a + sign inbetween.  so it does not comes under Associative property of multiplication

D. (6 × 4) × 2 = 48

Here we have 6 times 4 times 2.  so it comes under Associative property of multiplication