Determine what the average of y is given x in the simple regression model Choose the correct answer below. OA. vt25 OB. O OC. Hyjx = Bo +Byx OD. Se

x=37.5

if you need an explanation i can type it in the comments

\(3x+4y=12\implies 4y=-3x+12\implies y=\cfrac{-3x+12}{4} \\\\\\ y = \cfrac{-3x}{4}+\cfrac{12}{4}\implies y=\stackrel{\stackrel{m}{\downarrow }}{-\cfrac{3}{4}}x+\stackrel{\stackrel{b}{\downarrow }}{3}\qquad \impliedby \begin{array}{|c|ll} \cline{1-1} slope-intercept~form\\ \cline{1-1} \\ y=\underset{y-intercept}{\stackrel{slope\qquad }{\stackrel{\downarrow }{m}x+\underset{\uparrow }{b}}} \\\\ \cline{1-1} \end{array}\)

Exactly D

well i dont know why gram is non standard

hope it helps.

The correct answer is d. gram. The gram is indeed a metric unit; however, it is not considered a standard metric unit in the International System of Units (SI).

It is equal to one thousandth of a kilogram. The kilogram (a), meter (b), and second (c) are all standard metric units and form the basis of the International System of Units (SI). The kilogram is the unit of mass, the meter is the unit of length, and the second is the unit of time. These units are universally recognized and used in scientific, engineering, and everyday measurements.

Therefore, the gram (d) is the correct option as it is not considered a standard metric unit.

The rest of the options are as follows:

a. kilogram: The kilogram is the standard unit for mass in the International System of Units (SI). It is defined as the base unit for mass.

b. meter: The meter is the standard unit for length in the SI. It is defined as the base unit for length and is commonly used to measure distances.

c. second: The second is the standard unit for time in the SI. It is defined as the base unit for time and is commonly used to measure durations and intervals.

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Answer:

8 cars

Step-by-step explanation:

8*50= 400

Answer:

Inequality 1) y≤120−x; shade down

Inequality 2) y≥90−0.625x; shade up

Possible solution: (10,100)

*Colton could sell 10 tacos and 100 burritos.

​Step-by-step explanation:

Hope I helped ^u^

Colton can sell 20 tacos and 100 burritos.

An inequality is a relation between two numbers or expressions that are not equal. It can show which of them is greater or smaller by using symbols like < or >. It can also be a statement of fact about the order relationship of quantities.

Given that, Colton can make 120 tacos or burritos in total, the taco for $3.75 and each burrito for $6, He must sell at least $540 worth of tacos and burritos each day,

Establishing the inequality,

x + y ≤ 120............(i)

3.75x + 6y ≥ 540

0.625x + y ≥ 90...........(ii)

Plotting the graph, the solution will be the portion covered by both the inequality.

One of the possible solution is = (20,100)

Hence, Colton can sell 20 tacos and 100 burritos.

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Answer:75 children

Step-by-step explanation: Let the number of children will be x, so the number of adults will be 215-x

Making equation: 3x+5(215-x)=925

3x+1075-5x=925

-2x=925-1075

-2x=-150

x=75

Answer:

Step-by-step explanation:

50.594

204.3251

47.1138

In a normal distribution, with 10.03% of items below 35 kg and 89.97% below 70 kg, we need to find the mean and standard deviation of the distribution.

Let's denote the mean of the distribution as μ and the standard deviation as σ. In a normal distribution, we can use the properties of the standard normal distribution (with mean 0 and standard deviation 1) to solve this problem.

The given information allows us to calculate the z-scores corresponding to the weights of 35 kg and 70 kg. The z-score represents the number of standard deviations an observation is from the mean. Using z-scores, we can find the cumulative probabilities from a standard normal distribution table.

For the weight of 35 kg, the z-score can be calculated as (35 - μ) / σ. Using the standard normal distribution table, we can find the cumulative probability associated with this z-score, which is 10.03%.

Similarly, for the weight of 70 kg, the z-score can be calculated as (70 - μ) / σ. The cumulative probability associated with this z-score is 89.97%.

By looking up the corresponding z-scores in the standard normal distribution table, we can determine the z-values. Solving the equations (35 - μ) / σ = z1 and (70 - μ) / σ = z2, we can find the mean μ and standard deviation σ of the distribution.

In this way, we can use the properties of the standard normal distribution to calculate the mean and standard deviation of the given normal distribution based on the provided cumulative probabilities.

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At x=2

And

So the function is

Answer:

16j

Step-by-step explanation:

Since 8j is equal to 8j, you can just add 8j+8j=16j

The method that cannot be used to show congruency of two triangles is the method of "angle-angle-angle" (AAA).

The AAA method states that if the corresponding angles of two triangles are congruent, then the triangles themselves are congruent. However, this method is not valid for proving congruency because it does not take into account the lengths of the sides of the triangles.

To prove congruency, we typically use one of the following valid methods:

Side-Side-Side (SSS): If the three sides of one triangle are congruent to the corresponding three sides of another triangle, then the triangles are congruent.

Side-Angle-Side (SAS): If two sides and the included angle of one triangle are congruent to two sides and the included angle of another triangle, then the triangles are congruent.

Angle-Side-Angle (ASA): If two angles and the included side of one triangle are congruent to two angles and the included side of another triangle, then the triangles are congruent.

Side-Angle-Angle (SAA): If two angles and a non-included side of one triangle are congruent to two angles and a non-included side of another triangle, then the triangles are not necessarily congruent. This method alone is not sufficient to prove congruency.

Therefore, the method that cannot be used to show congruency of two triangles is the Angle-Angle-Angle (AAA) method.

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Answer:

It the volume

Step-by-step explanation:

Answer:

the answer is 1908.52

Step-by-step explanation:

Answer:

Step-by-step explanation:

There is no specific question here, but perhaps it is solve for Y? is there any more information?

P= 14 - Y

J= 8  +Y

Answer:

3.6

Step-by-step explanation:

To find the distance of two points you use the formula \(\sqrt{x2-x1)^{2} +(y2-y1)^{2} }\)

so all we have to do is plug in the x's and y's

the points given are (-8,6) and (-5,8) so  we would do

\(\sqrt{(-5-(-8))^{2} +(8-6)^{2} }\)

if you plug that into a calculator you get that the distance between the two points are 3.605551275

but you would just want to round to the nearest tenth so the distance between the two points are 3.6

hope this helps and if you have nay questions lmk :D

Answer:

100d / (s+2h)

Step-by-step explanation:

Answer:

3/7

Step-by-step explanation:

Hey there!

To find this out, we have to put the numerator of the fraction as the number of marbles he has left, and the denominator as the number of marbles he had in total before he played

# of marbles in total - 56

# of marbles he has left - (56 - 32) 24

Fraction - 24/56

Simplify - 24/56 --> 3/7

So, the fraction of his original marbles he has left as a fraction is 3/7

Answer:

5.15

Step-by-step explanation:

5.15 = 3a + 2.15

5.15 - 2.15 = 3a

3.15 = 3a

a = 0.05

I hope this helps you :)

Answer:

\(\frac{1}{2}\) (a + 2b)(a - b)

Step-by-step explanation:

Assuming you require the expression to be factored

Given

\(\frac{1}{2}\) a² + \(\frac{1}{2}\) ab - b² ← factor out \(\frac{1}{2}\) from each term

= \(\frac{1}{2}\) (a² + ab - 2b²) ← factor the quadratic

Consider the factors of the coefficient of the b² term(- 2) which sum to give the coefficient of the ab- term (+ 1)

The factors are + 2 and - 1, since

2 × - 1 = - 2 and 2 - 1 = + 1, thus

a² + ab - 2b² = (a + 2b)(a - b) and

\(\frac{1}{2}\) a² + \(\frac{1}{2}\) ab - b² = \(\frac{1}{2}\)(a + 2b)(a - b)

Answer:

Step-by-step explanation:

the area of the hemisphere is  1/2 \(\pi\)\(r^{2}\)

the radius is 1/2 the diameter,

the diameter is also the hypotenuse of the isosceles triangle

\(d^{2}\) = \(4^{2}\)+\(4^{2}\)

\(d^{2}\) = 32

d =\(\sqrt{32}\)

r = 1/2\(\sqrt{32}\)

1/2\(\pi\)(1/2\(\sqrt{32}\))^2

1/2\(\pi\)(1/4*32)

(32/8 )*\(\pi\)

4\(\pi\) ( the entire upper hemisphere )

area of the triangle is  1/2* 4 *4 = 8

then the exact area of the parts of the circle would be

4\(\pi\) - 8    

The number sentence can be used to find the number of pages Kamil can fill with baseball cards is: Kamil can fill 8 pages with his baseball cards.

A number sentence is a mathematical statement or equation that contains numbers and mathematical operations such as addition, subtraction, multiplication, or division. It is a way of expressing a mathematical relationship or problem in a concise form.

Number sentences are used to represent mathematical operations and relationships in a variety of contexts. They can be simple or complex, depending on the complexity of the mathematical expression they convey.

To find the number of pages Kamil can fill with baseball cards, we can use division. The number sentence that can be used is:

Number of pages = Total number of cards / Number of cards per page

In this case, Kamil has 72 baseball cards, and he can fit 9 cards on each page. Therefore, the number sentence would be:

Number of pages = 72 / 9

Simplifying the division, we get:

Number of pages = 8

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To determine whether to reject or fail to reject the null hypothesis, we typically rely on statistical hypothesis testing. After conducting a hypothesis test, we consider the test statistic and the corresponding p-value.

When the p-value is less than or equal to the predetermined significance level (usually denoted as α), we reject the null hypothesis. This indicates that the observed data provides sufficient evidence to support the alternative hypothesis. Conversely, when the p-value is greater than the significance level, we fail to reject the null hypothesis. In this case, we do not have enough evidence to support the alternative hypothesis.

The significance level α is predetermined and represents the probability of making a Type I error, which is the rejection of the null hypothesis when it is actually true. Commonly used significance levels include 0.05 (5%) and 0.01 (1%). The choice of the significance level depends on the specific research context and the consequences of making a Type I error.

It is important to note that failing to reject the null hypothesis does not necessarily mean that the null hypothesis is true. It simply means that the observed data does not provide enough evidence to support the alternative hypothesis. There could still be other factors or limitations in the study that contribute to the lack of significant results.

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The decision for this test at a .05 level of significance is not enough information to make a decision the correct answer is (d).

To make a decision for a hypothesis test, we compare the obtained test statistic (in this case, z = 1.80) with the critical value(s) based on the chosen level of significance (in this case, α = 0.05).

For a one-sample z test, if the obtained test statistic falls in the rejection region (i.e., beyond the critical value(s)), we reject the null hypothesis. Otherwise, if the obtained test statistic does not fall in the rejection region, we fail to reject the null hypothesis.

Without knowing the critical value(s) corresponding to a significance level of 0.05 and the directionality of the test (one-tailed or two-tailed), we cannot determine the decision for this test. Therefore, the correct answer is (d) There is not enough information to make a decision.

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Length of the arc of a circle

Given a circle of radius r, the length of an arc of angle θ is given by:

L = rθ

The angle must be expressed in radians.

The question asks to calculate the length of the arc PQ in a circle of radius r=9 and angle of θ=60°

Converting the angle to radians:

The length of the arc PQ is:

Calculating: L = 3*3.1416 = 9.425

Answer:

B. 9.425

71.5° should be the angle of elevation to the summit of the tree. The tree to the nearest foot is 149.4ft.

Between the horizontal line and the line of sight, an angle called the angle of elevation is created. An angle of elevation is produced when the line of sight is upward from the horizontal line. When it lies between the line of sight and the horizontal line, the angle of elevation is generated. The angle created, known as the angle of elevation, occurs when the line of sight is above the horizontal line. However, the line of sight is downward toward the horizontal line in the depression angle. The angle of elevation is the angle formed by the horizontal line of sight and the object when a person stands and looks up at something.

tan 71.5°=opp/hyp

tan 71.5°=y/50

y=50(tan 71.5°)

y=50(tan 71.5°)

y=50(2.98868)

y=149.4ft

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The expression that represents Michaela's balance at the end of the year is 5275{(1 + 0.081)⁴+(1 + 0.345)⁸}.

Compound interest is computed as interest on the principle of an account plus any accrued interest.

Compound interest can be calculated using the following formula:

x = P (1+r/n

,where x = compound interest

P = principal (the initial deposit or loan amount)

r = annual interest rate

n = the number of compounding periods per unit of time

t = the number of time units the money is invested or borrowed for.

Given:

Michaela transferred a balance of $5275 to a new credit card at the beginning of the year.

The card offered an introductory APR of 8.1% for the first 4 months and a standard APR of 34.5% thereafter.

If the card compounds interest monthly,

then the expression that represents Michaela's balance at the end of the year,

= 5275{(1 + 0.081)⁴+(1 + 0.345)⁸}

Therefore, the expression is 5275{(1 + 0.081)⁴+(1 + 0.345)⁸}.

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Note that the graph to the system of inequalities is attached. The solution is not (0,0).

To determine if (0,  0 ) is a solution,

we substitute x = 0 and y = 0 into both inequalities as follows

y ≥ 2x - 4

0 ≥ 2(0) - 4

0 ≥ -4 (true)

y < x

0 < 0 (false)

Since (0 ,0 ) satisfies the first inequality but not the second, it is NOT a solution to the system.

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Answer:

43°

Step-by-step explanation:

In a isosceles triangle, two angles HAVE to be equal.

This means that 94 can be one of the angles that are equal, or the angle that is not equal to another angle.

Let's start with the fact that 94 can be one of the angles that are equal. (Note: angles in a triangle add up to 180)

94+94+x=180

188+x=180

There is NOT a possible value for x in this situation, as you cannot have a negative value of an angle. Therefore we must try the other situation where 94 is the angle that is not equal to another angle.

x+x+94=180

2x+94=180

Subtract 94 from both sides

2x=86

Divide both sides by 2

x=43

Therefore the answer is 43°

Basically, the equation would look like this:

.50 + 200% = x

What I did was find the percent number, so after figuring out what it was it looked more like this:

.50 + 1.00 = 1.50

The answer is, the customer pays $1.50

ty! btw, can i please get brainly :3

The relationship is not proportional. Therefore, the answer is: D. No, because the ratios between the quantities are not equal.

A proportional relationship between two variables, x and y, is such that there is a constant of proportionality, k, that exists between the two variable, such that, y = kx. That is:

Constant of proportionality (k) = y/x.

The constant of proportionality, k, for every pair of values in the given relationship must be the same for the relationship to be considered a proportional relationship.

Given the table, find out if constant of proportionality, k, exist among all pairs of values. Thus,

For (1, 0.47):

k = y/x = 0.47/1 = 0.47

For (2, 0.68):

k = y/x = 0.68/2 = 0.34

For (3, 0.89):

k = y/x = 0.89/3 = 0.30

For (4, 1.10):

k = y/x = 1.10/4 = 0.28

As we can see, the ratio of y to x is different between the quantities. There is no constant of proportionality. Therefore, it is not a proportional relationship.

The answer is: D. No, because the ratios between the quantities are not equal.

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To solve the equation log4​^x−log4​^5=log4​^20, we can use the logarithmic property that states that the difference of the logarithms of two numbers with the same base is equal to the logarithm of the quotient of the two numbers.

Applying this property, we get:
log4​^x/log4​^5 = log4​^20
Simplifying the left-hand side using the logarithmic property that states that the logarithm of a power of a number with the same base is equal to the power times the logarithm of the number, we get:
log4​^(x/5) = log4​^20
Now we can solve for x/5 by equating the logarithmic expressions on both sides:
x/5 = 20
Multiplying both sides by 5, we get:
x = 100
Therefore, the solution to the equation log4​^x−log4​^5=log4​^20 is x = 100.
To solve the equation log4(x) - log4(5) = log4(20), we can use the logarithm properties. According to the properties of logarithms, loga(m) - loga(n) = loga(m/n). So, we can rewrite the equation as:
log4(x/5) = log4(20)
Since the bases (4) are the same, we can set the arguments (x/5 and 20) equal to each other:
x/5 = 20
Now, solve for x:
x = 20 * 5
x = 100
So, the solution to the equation is x = 100.

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