Did I do 8-9 right?

If not, what did I do wrong

Answer:

So, equation y=7 is parallel to x-axis. A line parallel to X axis. x axis because it is the same thing as y=0x+7 or y=7, therefore y intercept is 7 and slope is 0.

Step-by-step explanation:

Answer:

Reduction

Step-by-step explanation:

The resulting shape M'S'V' is smaller than the original shape MSV, so it is therefore classified as a reduction.

Consider a free-falling body with mass m. The gravitational force acting on the body is given by F_g = mg, where g is the acceleration due to gravity. The frictional force opposing the motion is proportional to the velocity and is given by F_f = -bv, where b is a constant of proportionality.

The net force acting on the body is the sum of the gravitational force and the frictional force, i.e., F_net = F_g + F_f = mg - bv. Using Newton's second law, we have F_net = ma, where a is the acceleration of the body. Thus, ma = mg - bv, or equivalently, a = g - (b/m)v.

This is a first-order differential equation for v(t), the velocity of the body as a function of time. The solution to this equation is v(t) = (mg/b) + Ce^(-bt/m), where C is a constant of integration determined by the initial conditions.

As t approaches infinity, the exponential term in the solution approaches zero, and the velocity approaches the terminal velocity V_t = mg/b. This means that the body falls with a constant velocity V_t, which is independent of its initial velocity. The terminal velocity is achieved when the gravitational force and the frictional force balance each other out, and the net force on the body becomes zero.

Therefore, a free-falling body under the influence of gravity and a frictional force proportional to the velocity approaches a terminal velocity.

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Answer:

it takes 4 days  drink 1 gallon of milk

Step-by-step explanation:

mark brainliest pls

L = k/f, where k is the variational constant, is the formula for the inverse variation.

A mathematical relationship between two variables in which they vary in opposing directions is referred to as an inverse proportion, also known as an inverse relationship. When one variable increases while the other decreases, this is known as having inverse proportions.

Using the variables length of violin 'l' and frequency of vibration 'f'

If the length of violin 'l' is inversely proportional to the frequency of vibration 'f', this is expressed as:

l α 1/f

l = k/f

Hence the formula for the inverse variation is l = k/f where k is the constant of variation.

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Answer:

172.8 is the area of the parallelogram

The smallest sample observation can be increased by any value up to 0.1 without affecting the value of the sample median.

To find the maximum amount by which the smallest sample observation can be increased without affecting the sample median, we need to consider the definition of the median.

The median is the middle value in a sorted dataset. If the dataset has an odd number of observations, the median is the middle value. If the dataset has an even number of observations, the median is the average of the two middle values.

Since the current smallest sample observation is 8.5, increasing it by any value up to 0.1 would still keep it smaller than any other value in the dataset. This means the position of the smallest observation would not change in the sorted dataset, and therefore, it would not affect the value of the sample median.

The smallest sample observation can be increased by any value up to 0.1 without affecting the value of the sample median.

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The forecast for May using a five-month moving average is 39 (Option E).

Moving average is used for smoothing out time series data to find any trends or cycles within the data. A five-month moving average is the average of the past five months. To calculate the moving average, add up the sales for the previous five months and divide it by five.

According to the question, the sales for the previous five months are: Nov. 39 Dec. 27 Jan. 40 Feb. 42 Mar. 41 April 47

We have to add the sales of these five months, which gives:

27 + 40 + 42 + 41 + 47 = 197

To find the moving average for May, we divide this sum by 5:

197 / 5 = 39.4

Since we have to round the answer to the nearest whole number, we round 39.4 to 39, which is option E.

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Option c, coin tossing is a binomial distribution that is characterized by scenarios and is equivalent.

Tossing a coin- There are a finite number of trials, with the chance of success and failure set for each trial. The probability of receiving a 'head' or a 'tail' on any toss is unaffected by the subsequent and prior tosses. As a result, the distribution is Binomial.

The length of a measured item has a uniform distribution, pulling balls from an urn has a hypergeometric distribution, and counting flaws has a Poisson distribution. As a result, d is the right answer.

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The correct statistical test depends on the specific combinations of variables and the research question. It is important to choose the appropriate test to obtain accurate results and draw proper conclusions.

The correct statistical test for the combinations of variables listed can be determined based on the nature of the variables and the research question.

However, without specific combinations of variables provided, it is not possible to give a definitive answer.
In general, if the variables are categorical and independent, the chi-squared test is commonly used.

This test examines whether there is a significant association between two categorical variables.

It compares the observed frequencies with the expected frequencies under the assumption of independence.

On the other hand, if the variables are continuous and independent, a t-test or an analysis of variance (ANOVA) may be appropriate. These tests compare means across groups and determine if there are significant differences.

If the variables are continuous and dependent, a paired t-test or a repeated measures ANOVA can be used. These tests analyze the differences between paired observations or repeated measurements.

In conclusion, the correct statistical test depends on the specific combinations of variables and the research question. It is important to choose the appropriate test to obtain accurate results and draw proper conclusions.

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Answer:

1.5

Step-by-step explanation:

It's asking at which x-value do the two lines meet. In this example, the lines intersect at x=1.5.

Answer:

The population in 14 weeks is 232 fishes

Step-by-step explanation:

The equation for exponential growth is f(x) = a·(1 + r)ˣ

Where;

a = The starting population size = 3

r = The rate at which the population of grows

x = The number of periods to of change of the population

Therefore, we have;

f(6) = 31 = 3 × (1 + r)⁶

31/3 = (1 + r)⁶

㏑(31/3) = 6㏑(1 + r)

(㏑(31/3))/6 =㏑(1 + r)

1 + r = e^((㏑(31/3))/6) ≈ 1.476

1 + r ≈ 1.476

Therefore, the population in 14 weeks is given as follows;

f(14) = 3 × (1.467)¹⁴ ≈ 232.574

Given that we the information is with regard of living things, such that there are no fractions, we round down to the nearest whole number as follows;

f(14) ≈ 232

The population in 14 weeks = 232 fishes.

Answer:

x over quantity 2x plus 3 equals 40 over 60

Step-by-step explanation:

Let light clothes=x

Number of dark clothes = 2x + 3,

Dark clothes are 60% of total clothes

Light clothes=100%-60%

=40%

Light clothes / dark clothes = percentage of light clothes / percentage of dark clothes

x / 2x+3 = 40 / 60

x over quantity 2x plus 3 equals 40 over 60

    Expression for this situation will be \(\frac{x}{2x+3}=\frac{60}{40}\).

Let the number of dark cloths = y

And the number of light cloths = x

"The number of dark cloths is three more than twice the number of light cloths".

Therefore, equation will be,

y = 2x + 3 ----- (1)

"The laundry is 60% dark cloths"

Equation for this statement will be,

y = \(\frac{60}{100}(x+y)\)

y = 0.6x + 0.6y

y - 0.6y = 0.6x

0.4y = 0.6x

\(\frac{y}{60}=\frac{x}{40}\)

Now substitute the value of y from equation (1),

\(\frac{2x+3}{40}=\frac{x}{60}\)

\(\frac{2x+3}{x}=\frac{40}{60}\)

\(\frac{x}{2x+3}=\frac{60}{40}\)

  Therefore, expression for this situation will be \(\frac{x}{2x+3}=\frac{60}{40}\).

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Answer:

127

Step-by-step explanation:

using the definition of a straight angle:

53+x=180

127

The answer is 636.

Given,

343 + what = 979

Mathematically,

Let us assume the value be x,

343 + x = 979

x = 979 - 343

x = 636

Thus 636 is the answer.

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Answer:

x > 1/2

Step-by-step explanation:

1/2 is a fraction just so you know

Hope this help's and I wont be showing work due to it being a test that I have seen sorry.

Answer: (2,0), (2,1), and (6,1)

Step-by-step explanation: I just used the desmos graphing calculator to find the answer to your problem. I don't know any formulas to solve it so I just rotated the points by hand. I also made sure they were still equidistant from the point (2,-1) because if their distances from other points changed during the rotation, then the triangle would not be equal to the first triangle and the image would've been distorted.

I hope this helps! Have a nice day.

Answer:

$3

Step-by-step explanation:

0.75x4 = 3

Answer:

is b

Step-by-step explanation:

youre welcome

Answer:

b

Step-by-step explanation:

Answer:

answer is in picture

Step-by-step explanation:

Answer: 12 cm

Step-by-step explanation:

\(\mathtt{Using\ the \ pythagorean \ theorem: \\}\)

\(a^2+b^2=c^2, \\\ we\ can\ plug\ in\ values\ for\ a,\ b,\ and\ c\)

\(L=a\ and\ M=b\ and\ N=c\)

Therefore,

\(L^2+35^2=37^2\\L^2+1225=1369\\L^2=144\\\sqrt{L^2} =\sqrt{144} \\L=\pm12\\Taking\ only\ the\ positive\ answer,\ we\ get:\\\large\boxed{L = 12cm}\)

We have: L² + M² = N²

=> L² = N² - M² = 37² - 35² = 144 = 12²

=> L = 12

ANSWER: B.12

OK done. Thank to me :3

Answer:

D,0,2,-2

Step-by-step explanation:

2x^5-3x^3-20x=0

x(2x^4-3x^2-20)=0

x=0

or 2x^4-3x^2-20=0

put x²=t

2t²-3t-20=0

-20×2=-40

8-5=3

8×-5=-40

2t²-(8-5)t-20=0

2t²-8t+5t-20=0

2t(t-4)+5(t-4)=0

(t-4)(2t+5)=0

t=4

x²=4

x=2,-2

t=-5/2

x²=-5/2

it gives imaginary  root. so real rational roots are 0,2,-2

Answer:

D

Step-by-step explanation:

1) Factorise x

x(2x^4-3x^2-20) = 0

a product is equal to 0 when at least one factor is equal to 0.

so a solution is

x = 0

we have now to solve

2x^4 - 3x^2 - 20 = 0

we can put

x^2 = y

and we have

2y^2 - 3y - 20 = 0

it is now an equation of second degree

Δ = 9 + 160 = 169

y1 = (3 + 13)/4 = 4

y2 = (3 - 13)/4 = -10/4 = -5/2

for the previous relationship we have

x^2 = 4

x = 2

x = -2

x^2 = -5/2

a square number can’t be negative, so this equation is impossible.

In conclusion we can say that the original equation has three solution:

0, -2, 2

The coordinates after the translation (x,y) -> (x + 2, y - 6).

A'(-1, -8), B'(2, -3), C'(7, 0), D'(4, -5).

The translation in the context of this problem is defined as follows:

(x,y) -> (x + 2, y - 6).

The meaning of each transformation is given as follows:

Hence the effect on the coordinates of each vertex is given as follows:

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Let X denote the amount of time a book on two-hour reserve is actually checked out, and suppose the cdf is the following. For \(0 ≤ x ≤ 2, F(1) = (1^3/12) = 0.0833.So, P(X ≤ 1) = 0.0833.\) Hence, the correct option is (a) P(X ≤ 1).

Given that X denotes the amount of time a book on two-hour reserve is actually checked out, and the cdf is the following:

\(cdf: 0 , x<0f(x) = ((x^2)/4) , 0 <= x <= 21 , 2<= x\)

To use the cdf to obtain the following.P(X ≤ 1)

So, the probability distribution function is the derivative of the cumulative distribution function.

∴ f(x) = d/dx(F(x))

Also, from the cdf, we know that:

\(f(x) = 0 when x < 0.f(x) = ((x^2)/4) when 0 ≤ x ≤ 2.\)

f(x) = 1 when x ≥ 2.

Using the above conditions, we have to calculate the following:

(a) P(X ≤ 1)

Here, P(X ≤ 1) = F(1).

When\(0 ≤ x ≤ 2, F(x) = ∫[0,x] f(t)dt=∫[0,x] (t^2/4)dt=[t^3/12]0x=(x^3/12)\)

Thus, for\(0 ≤ x ≤ 2, F(x) = (x^3/12).\)

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The values of Z such that e² = 2 + i√3 are Z = ln(2 + i√3) + 2πik, where k is an integer.

To find the values of Z, we can start by expressing 2 + i√3 in polar form. Let's denote it as re^(iθ), where r is the modulus and θ is the argument.

Given: 2 + i√3

To find r, we can use the modulus formula:

r = sqrt(a^2 + b^2)

= sqrt(2^2 + (√3)^2)

= sqrt(4 + 3)

= sqrt(7)

To find θ, we can use the argument formula:

θ = arctan(b/a)

= arctan(√3/2)

= π/3

So, we can express 2 + i√3 as sqrt(7)e^(iπ/3).

Now, we can find the values of Z by taking the natural logarithm (ln) of sqrt(7)e^(iπ/3) and adding 2πik, where k is an integer. This is due to the periodicity of the logarithmic function.

ln(sqrt(7)e^(iπ/3)) = ln(sqrt(7)) + i(π/3) + 2πik

Therefore, the values of Z are:

Z = ln(2 + i√3) + 2πik, where k is an integer.

The values of Z such that e² = 2 + i√3 are Z = ln(2 + i√3) + 2πik, where k is an integer.

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Answer:

3.039%, 3 3/16%, 3.4%, 3.499%, 3 1/2%.

Step-by-step explanation:

First convert to them all decimal fractions:

= 3.4, 3.039, 3.1875, 3.499, 3.5

so,  the answer is

3.039, 3.1875, 3.4, 3.499, 3.5

The weight of the flour pack used by the chef to make chicken nuggets is 0.04 pounds.

Quantity of flour used to make chicken nuggets by the chef = 0.28 pounds

If the chef used 1/7th of the pack of flour;

Quantity of flour used by the chef = 1/7 of 0.28 pounds

= 1/7 × 0.28

= 0.04 pounds

Therefore, the chef used 0.04 poundsof the flour pack

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