Please please please help John wants to buy a new video game it cost $39.00. He has $14.00 in his piggy
bank. He works for farmer Jones down the street for $5.00 an hour. How many
hours will he need to work before he can buy his new video game? Make and equation

Answer:

Question Number 2 is 20

Question number 3 is 18x-32

Step-by-step explanation:

Answer:

steps below

Step-by-step explanation:

(3,3)(6,3)(5,0)(6,-1)(3,-1)(4,0)  ==> (x+1,y-6)

==> (4,-3)(7,-3)(6,-6)(7,-7)(4,-7)(5,-6) ==> dilation by factor 3 and center G (9,-9)

==> (-6,9)(3,9)(0,0)(3,-3)(-6,3)(-3,0)

check: NO=9   AB=3   NO/AB = 3

Answer:

(x^3+4x+7)/(x+3)

Step-by-step explanation:

you just combine the like terms on the top and put it in a fraction. let me know if that helped.

The hydrostatic pressure on the bottom of the aquarium is 8044 lb/ft2.

The hydrostatic pressure on the bottom of the aquarium can be found using the formula:

P = ρgh

where P is the pressure, ρ is the density of the fluid (water), g is the acceleration due to gravity, and h is the depth of the fluid.

Here, ρ = 62.5 lb/ft3, g = 32.2 ft/s2 (acceleration due to gravity), and h = 4 ft (depth of water).

Thus, the hydrostatic pressure on the bottom of the aquarium is:

P = (62.5 lb/ft3) x (32.2 ft/s2) x (4 ft)

= 8044 lb/ft2

Therefore, the hydrostatic pressure on the bottom of the aquarium is 8044 lb/ft2.

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The correct answer is option D. No, because the sample sizes are not large enough to assume the distribution of the difference in sample means is approximately normal.Researchers investigated whether there is a difference between two headache medications, R and S.

Researchers measured the mean times required to obtain relief from a headache for patients taking one of the medications. From a random sample of 75 people with chronic headaches, 38 were randomly assigned to medication R and the remaining 37 were assigned to medication S. The time, in minutes, until each person experienced relief from a headache was recorded. The sample mean times were calculated for each medication.To construct a confidence interval, we require that some conditions are satisfied. The assumptions that should be met for inference with a confidence interval for the difference in population means are as follows:The data is independent;The data in each group should be roughly normally distributed;Both groups have the same variance, and each group should have a large enough sample size so that the central limit theorem (CLT) holds. The CLT holds for the difference in the sample means since both samples are taken from a population that is normally distributed. We can also assume that the sample size is large enough to use the t-distribution since each sample has more than 30 observations. As a result, all of the conditions have been met. As a result, we may employ a t-distribution to make inferences about the population difference between the two headache medications.

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Answer:

(f-g)(x) = -6x^3 + 8x^2 + 4x - 4

Step-by-step explanation:

subtract g(x) from f(x)

(f-g)(x) = (3x^2 + 4x - 6) - (6x^3 - 5x^2 -2)

distribute the negative

(f-g)(x) = 3x^2 + 4x - 6 - 6x^3 + 5x^2 +2

like terms and in order of exponent

(f-g)(x) = -6x^3 + 8x^2 + 4x - 4

Answer:

360 miles

Step-by-step explanation:

For every one hour traveled, 120 miles are covered. If there are three hours traveled, then we would have 120+120+120 (aka 120*3). At the end of the 3 hours, we will have traveled 360 miles. Thank you for choosing Southwest, enjoy your day.

Answer:

10.54263764

Step-by-step explanation:

\(3300=2000e^{.0475t}\\\\1.65=e^{.0475t}\\\ln(1.65)=.0475t\\.500775288=.0475t\\t=10.54263764\)

Answer:

It will take about 10.5 years for the investment to reach $3,300.

Step-by-step explanation:

Continuous compound is given by:

\(\displaystyle A=Pe^{rt}\)

Where P is the principal, e is Euler's number, r is the rate, and t is the time (in this case in years).

Since our principal is $2,000 at a rate of 4.75% or 0.0475, our equation is:

\(\displaystyle A=2000e^{0.0475t}\)

We want to find the number of years it will take for our investment to reach $3,300. So, substitute 3300 for A and solve for t:

\(3300=2000e^{0.0475t}\)

Divide both sides by 2000:

\(\displaystyle e^{0.0475t}=\frac{33}{20}\)

We can take the natural log of both sides:

\(\displaystyle 0.0475t=\ln\left(\frac{33}{20}\right)\)

Therefore:

\(\displaystyle t=\frac{1}{0.0475}\ln\left(\frac{33}{20}\right)\approx 10.54\text{ years}\)

It will take about 10.5 years for the investment to reach $3,300.

Answer:

1.429 × 10^-3

Step-by-step explanation:

since it's below 1, you're moving the decimal to the right, which makes the 3 negative.

Answer:

B

Step-by-step explanation:

40x(amount noel worked) because he is charging 40$ at a rate of 40 p/h so it is B.

Answer:

B is the correct function

Step-by-step explanation:

Step-by-step explanation:

that's it b is for brings

b compliment is for doesn't bring

Answer:

62.5%

Step-by-step explanation:

Thw price markdown will be 62.5%

Answer a I think

Step-by-step explanation:

Answer:

Step-by-step explanation:

In order to do this, you have to know how to use your calculator's regression equation function.  

First enter in the data. Hit "stat" then 1:Edit and enter all the x values into L1. After each value, hit enter. When you're done with the x list, arrow over to L2 and enter in all the y-values. If there are already values there you need to clear, arrow up to highlight L1, hit "clear", then "enter" and the values will disappear. Do that for both lists if you need to.

After the data is listed in L1 and L2, hit "stat" again and arrow over to "Calc". Hit 5:QuadReg. If you have a TI 83, your equation will be there for you. If you have a TI 84, you'll need to arrow down to "calculate" to get the equation. Regardless, the equation is

\(y=3.48x^2+1.22x+3.44\), the last choice in your options.

Answer: D

Becasye I got it from him

Answer:

I think it is D.

Step-by-step explanation: So I am not 100% Sure on this, but if D is wrong, it is 100% A.

Answer:

D

Step-by-step explanation:

Because 20% increased is like 4 over 20, 4 times 20 is 100 so x is over 100

Answer:

72°

Step-by-step explanation:

From the question,

Area of the circle = πr²

A = πr²................. Equation 1

Where r = radius of the circle.

⇒ r = √(A/π)............. Equation 2

Given: A = 346.5 cm², π = 3.14

r = √(346.5/3.14)

r = √(110.35)

r = 10.5 cm.

Therefore,

circumference of the circle = 2πr = 2×3.14×10.5

circumference = 65.94 m

If the length of the arc(s) is 1/5 of its circumference.

Therefore, length of arc (s) = 13.188

⇒ length of arc/circumference = 13.188/65.94 =  1/5

s/2πr = θ/360

Where θ = angle substends at the center of the circle

1/5 = θ/360

θ = 360/5

θ = 72°

(1,2,4)

Range describes the y-values of a graph.

Range

Range is the y-values that a graph covers. Remember that the y-values are found on the vertical axis. If the graph is not continuous, then the values between the points are not included in the range. Similar to the range, the domain of a graph is the x-values that a graph covers. If there is a coordinate point with a y-value, then that y-value should be included in the range.

Finding Range

In order to find the range, we need to find all the unique y-values of the graph. Additionally, the range is given in numerical order. This means starting from the least value and going up to the greatest. The lowest y-value is 1, then 2, and finally 4. Even though there are two points where y = 2, we are only looking for unique values. This means that the range is (1,2,4).

The length of 64.0 Smoots in Zeldas is 16.0 Willies and 5.33 Zeldas. The bridge, which links MIT with its fraternities over the Charles River, is the Harvard Bridge. It measures 364.4 Smoots plus one ear in length.

The Smoot is a unit of length based on the height of Oliver Reed Smoot Jr., the Lambda Chi Alpha fraternity's class of 1962. Because he was carried or dragged length by length over the bridge, the additional ear indicates the length of his head.

Length of Harvard Bridge = 364.4 Smoots + 1 ear.

Therefore, 1 Smoot = 364.4/1.0

= 364.4 Smoots

Length of 64.0 Smoots in (a) Willies

To find the length of 64.0 Smoots in Willies, we use the conversion ratios:

1 Willie = 4.0 Smoots

Hence, the length of 64.0 Smoots in Willies is:

64.0 Smoots × (1 Willie/4.0 Smoots)

= 16.0 Willies.

Length of 64.0 Smoots in (b) Zeldas

To find the length of 64.0 Smoots in Zeldas, we use the conversion ratios:1 Zelda = 3.0 Willies,1 Willie = 4.0 Smoots

Hence, the length of 64.0 Smoots in Zeldas is:64.0 Smoots × (1 Willie/4.0 Smoots) × (1 Zelda/3.0 Willies) = 5.33 Zeldas.

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A polynomial function is a mathematical expression with more than two algebraic terms, especially the sum of many products of variables that are raised to powers.

A polynomial function can be written in the formf(x)=anxn+an-1xn-1+...+a1x+a0,where n is a nonnegative integer and an, an−1, an−2, …, a2, a1, and a0 are constants that are added together to obtain the polynomial.

The end behavior of a polynomial is defined as the behavior of the graph of p(x) for x that are very large in magnitude in the positive or negative direction.

If the leading coefficient of a polynomial function is positive and the degree of the function is even, then the end behavior is the same as that of y=x2. If the leading coefficient of a polynomial function is negative and the degree of the function is even,

then the end behavior is the same as that of y=−x2.To obtain a polynomial function that has the roots of −2, 1, and 7 and end behavior as limx→[infinity]p(x) = −[infinity] and limx→−[infinity]p(x) = −[infinity], we can consider the following steps:First, we must determine the degree of the polynomial.

Since it has three roots, the degree of the polynomial must be 3.If we want the function to have negative infinity end behavior on both sides, the leading coefficient of the polynomial must be negative.To obtain a polynomial that passes through the three roots, we can use the factored form of the polynomial.f(x)=(x+2)(x−1)(x−7)

If we multiply out the three factors in the factored form, we obtain a cubic polynomial in standard form.f(x)=x3−6x2−11x+42

Therefore, the polynomial function that has real roots at −2, 1, and 7 and has the end behavior as limx→[infinity]p(x) = −[infinity] and limx→−[infinity]p(x) = −[infinity] is f(x)=x3−6x2−11x+42.

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Answer:

In ascending order: 1/2, 3/5, 6/11, 8/9

Answer:

433345344 Answer

Step-by-step explanation:

Answer:

answer is y = 3/4x - 5

Step-by-step explanation:

picture below.

The 3/4 comes from the line. You would use rise over run to find the slope, which in this case is 3/4. and the -5 is basically the y-intercept

According to Pythagorean Theorem, The length of the horizontal portion of the support, x, is 3.87 feet.

The length of the horizontal portion of the support, x, can be determined by using the Pythagorean Theorem. The Pythagorean Theorem states that a2 + b2 = c2, where a and b are the sides of a right triangle and c is the hypotenuse.

In this case, a = 7 feet, b = x, and c = 8 feet. We can use the Pythagorean Theorem to solve for x: 72 + x2 = 82, or 49 + x2 = 64. This can be solved for x to get x2 = 15 and x = √15 ≈ 3.87 feet.

Therefore, the length of the horizontal portion of the support, x, is 3.87 feet.

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Answer:

57\(degrees\)

Step-by-step explanation:

For the first triangle the third angle is not given

So we take that angle as x

First = x+35+45=180

x+80=180

x=180-80

x=100

As we got 100*

For the second triangle

We take the variable as y

Second triangle=y+23+100=180

y+123=180

y=180 -123=57

Hence the answer is 57degrees

Answer:

160,170 and 240,250

Step-by-step explanation:

sorry if wrong

Answer:

y = -19/5

Step-by-step explanation:

Answer:

To solve, you should try to isolate the y-term.

1+y=-4/5-2

Subtract 1 from both sides.

y=-4/5-2-1

Combine the like terms on the right sides (subtract).

y=-2 4/5 - 1

y= -3 4/5

Hope this helps! :)

f(x) and g(x) are not closed under subtraction because when subtracted, the result will be a polynomial, the correct option is B.

A polynomial is a mathematical equation that solely uses the operations addition, subtraction, multiplication, and non-negative integer exponentiation of variables. Variables are sometimes known as indeterminate in mathematics. Majorly used polynomials are binomial and trinomial.

Given f(x) and  g(x) two polynomial functions in the standard form of the polynomial,

According to Closure Property, when something is closed, the output will be the same as the input.

The polynomials f(x) and g(x) can be seen in the image.

On subtracting the two polynomials, the output will be a polynomial and so it is closed under subtraction.

Therefore, The reason why f(x) and g(x) are not closed under subtraction is that the outcome of subtraction will be a polynomial, making option B the best choice.

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Complete question:

B) Tangent is positive in Quadrant III is correct!

To find the exact value of the expression sin(2sin^(-1)(x)), where x is a real number between -1 and 1, we can use trigonometric identities and properties.

Let's denote the angle sin^(-1)(x) as θ. This means that sin(θ) = x. Using the double angle formula for sine, we have: sin(2θ) = 2sin(θ)cos(θ).Substituting θ with sin^(-1)(x), we get: sin(2sin^(-1)(x)) = 2sin(sin^(-1)(x))cos(sin^(-1)(x)).

Now, we can use the properties of inverse trigonometric functions to simplify the expression further. Since sin^(-1)(x) represents an angle, we know that sin(sin^(-1)(x)) = x. Therefore, the expression becomes: sin(2sin^(-1)(x)) = 2x*cos(sin^(-1)(x)).

The remaining term, cos(sin^(-1)(x)), can be evaluated using the Pythagorean identity: cos^2(θ) + sin^2(θ) = 1. Since sin(θ) = x, we have:cos^2(sin^(-1)(x)) + x^2 = 1. Solving for cos(sin^(-1)(x)), we get:cos(sin^(-1)(x)) = √(1 - x^2). Substituting this result back into the expression, we have: sin(2sin^(-1)(x)) = 2x * √(1 - x^2). Therefore, the exact value of sin(2sin^(-1)(x)) is 2x * √(1 - x^2), where x is a real number between -1 and 1.

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