BRAINLY PLS HELP I BEG YOU I NEED YOYR HELP ASP !

Answer:

75 grams

Step-by-step explanation:

I have in on rsm and i put it in and its right :)

The option that best describes a stratified sample of workers is: "The consultant forms groups of workers based on the lengths of time the workers have worked at the factory, then randomly chooses groups and selects all of the workers in these groups."

What is probability?

Probability is a branch of mathematics that deals with the study of randomness and uncertainty in events. It is the measure of the likelihood or chance that an event will occur. Probability is expressed as a number between 0 and 1, where 0 indicates that the event will not occur and 1 indicates that the event will occur with certainty.

The option that best describes a stratified sample of workers is:

"The consultant forms groups of workers based on the lengths of time the workers have worked at the factory. Then, he randomly chooses groups and selects all of the workers in these groups."

In a stratified sample, the population is divided into subgroups or strata based on some relevant characteristic (in this case, the length of time workers have worked at the factory), and then a random sample is taken from each subgroup. This ensures that each subgroup is represented in the sample, and the overall sample is more representative of the population.

In this option, the consultant has formed groups of workers based on the length of time they have worked at the factory (a relevant characteristic). Then, the consultant selects all of the workers in the randomly chosen groups. This ensures that each subgroup of workers (based on length of time worked at the factory) is equally represented in the sample, and the overall sample is more representative of the population.

Therefore, the option that best describes a stratified sample of workers is: "The consultant forms groups of workers based on the lengths of time the workers have worked at the factory, then randomly chooses groups and selects all of the workers in these groups."

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All the correct statements are,

⇒ ∅ ⊂ R

⇒ {... , - 5, - 4, - 3, - 2} ⊆ T

⇒ T ⊂ I

⇒ 0 ∈ I

Mathematical expression is defined as the collection of the numbers variables and functions by using operations like addition, subtraction, multiplication, and division.

We know that;

For ∅ ⊂ R;

A null set is a subset of R, and in fact every set in general. There are no elements in a null set thus making it automatically a subset of any non-empty set by definition.

Hence, We get;

⇒ ∅ ⊂ R

For 6 ∈ T;

Since T is the set of negative integers less than - 1.

Hence, 6 ∉ T

For {... , - 5, - 4, - 3, - 2} ⊆ T

The set on the left is exactly what is defined on the problem statement for T. (The bar below the subset symbol just means that the subset is not strict, therefore the set on the left can be equal to the set on the right. Without it, the statement would be false since a strict subset requires that the two sets should not be equal).

Hence, {... , - 5, - 4, - 3, - 2} ⊆ T

For T ⊂ I;

Clearly, T is the set of negative integers less than - 1.

Hence, It is subset of integers.

Hence,  T ⊂ I

For 0 ∈ Z;

Zero is indeed an integer thus it is an element of Z.

Hence, 0 ∈ Z

For R ⊂ T

Since, T is the set of negative integers less than - 1.

So, Not all real numbers are some integers. Some real numbers do not meet this criteria.

Hence, R ⊄ T

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The complete question is shown in figure.

All of the y-values are not a constant multiple of the corresponding x-values, so the relationship is not a proportional relationship.

In Mathematics, a proportional relationship is a type of relationship that generates equivalent ratios and it can be modeled or represented by the following mathematical expression:

y = kx

Where:

Next, we would determine the constant of proportionality (k) for the relationship between the x-values and y-values in this table as follows:

Constant of proportionality, k = y/x

Constant of proportionality, k = 3/1 ≠ 5/2 ≠ 6/3

Since the constant of proportionality (k) for the relationship between the x-values and y-values are different, we can logically deduce that this is not a proportional relationship.

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Answer:

18

Step-by-step explanation:

awwww this is so sweet of you! you see this is the type of people we need in the world, kind people like you just wanting to help, thats why I answer questions on brainly not for the points and popularity but to help people out, thank you! <33333

Answer:

If the x is a Times then its 18 but if its not its 3x4+6

Step-by-step explanation:

Answer:

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

Step-by-step explanation:

Point-slope form is \(y-y_1=m(x-x_1)\)

m= slope, \(y_1=3, x_1=-2\)

slope= \(\frac{rise}{run}=\frac{-2}{1} =-2\)

\(y-3=-2(x-(-2))\)

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

Answer:

3, 6, 6, 6, 9

Step-by-step explanation:

mean of this is 6

median of this is 6

range of this is 6

give brainliset please!

hope this helps ;)

Answer:

x=-4

Step-by-step explanation:

Answer: -x+9/5

Step-by-step explanation:

Answer:

{-1, -2, -3, -4}

Step-by-step explanation:

The domain is the set of all x-values.

Answer:

30+y

Step-by-step explanation:

Answer:

He didn't include a parenthesis around 5+y

Step-by-step explanation:

Answer:

x = 350 gallons (amt of 60% solution that must be added)

Step-by-step explanation:

Amt of 60% solution = x gallons ; Amt of active ingredient = 0.6x gallons

Amt of 15% solution = 100 gallons ; Amt of active ingredient = 15 gallons

Amt of 50% solution = 100+x gallons ; Amt of active = 50 + 0.5x gallons

EQUATION:

Active ingredient: 0.60x + 15 = 50 + 0.50x

0.10x = 35

x = 350 gallons (amt of 60% solution that must be added)

The simplified expression is 8r + 9p - 7.

The given expression is,

8r + 12p - 7 - 3p

Combine the like terms, we have,

8r and -3p, which cannot be combined further since they have different variables.

We also have 12p and -7, which can be combined to give 12p - 7.

So, the expression simplifies to 8r + 12p - 3p - 7.

Simplify by combining like terms.

We have 8r and -3p, which remain unchanged.

We also have 12p - 7, which cannot be simplified further.

Finally, putting it all together, the simplified expression is 8r + 12p - 3p - 7.

To solve the expression, we can rearrange it by combining the like terms. We have 8r as it is,

12p - 3p simplifies to 9p, and the constant -7 remains unchanged.

Therefore, the expression can be written as 8r + 9p - 7.

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if two triangles have three pairs of congruent angles, then they must be congruent to each other by the Angle-Angle-Angle (AAA) congruence theorem, and thus cannot be non-congruent.

No, it is not possible to make two triangles that are not congruent and have three pairs of congruent angles. This is because if two angles of a triangle are congruent, then the third angle must also be congruent by the Angle Sum Theorem, which states that the sum of the angles in a triangle is always 180 degrees. If two triangles have three pairs of congruent angles, then all three angles in each triangle are congruent, meaning they have the same measure. However, this does not guarantee that the sides of the triangles are congruent. In order for two triangles to be congruent, they must have the same angle measures as well as the same side lengths. Therefore, if two triangles have three pairs of congruent angles, then they must be congruent to each other by the Angle-Angle-Angle (AAA) congruence theorem, and thus cannot be non-congruent.

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Answer:

x = 10

Step-by-step explanation:

x is 10 because if you divide both sides of the equation by 0.34 you would get x = 3.4/0.34 which is x = 10.

Hope this helps :)

Answer:

It increased by 61. 2011 had 93

Step-by-step explanation:

Based on the loan amount of $15,000 and the fair credit score, the amount of interest to be paid on the loan at the end of the first month is $80.

The interest on a credit score that is fair is 6.40%.

That means the annual interest on the loan is:

= 15,000 x 6.40%

= $960

The interest in the first month is:

= Annual interest / number of months in year

= 960 / 12 months

= $80

In conclusion, the interest in the first month is $80.

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Multiply the numerator by numberator and denominator by denominator.

a/b multiplied by c/d is ac / bd.

Answer:

Multiply the top numbers

Multiply the bottom numbers

Simplify if needed

Example:

4/5×6/8= 24/40=3/5

Answer:

Hi! I'm not too bad at math so I hope I can help you. Except, I can't seem to find your question so please comment your question(s) to me so that I can help you. Have a great day:)

Answer:

8

Step-by-step explanation:

32/4 = 8

8 = 1/4(32)

Answer:

8

Step-by-step explanation:

Since there is 32 students and 3/4 of them have brown hair right. We can change the 3/4 fraction to a similar fraction to help. We can bump it up. As it is similar to 6/8 and 12/16 and 24/32

So 24/32 would have brown hair leaving 8 with blonde

The tangent vector  → \(r(t)=〈4cos(2t),4sin(2t),5t〉\), normal vector at t=0 is given by →N(0) = 〈-1,0,0〉, and binormal vector at t=0 is given by →\(B(0) = 〈0, -0.441, -0.898〉\)

The tangent vector, normal vector, and binormal vector of the given curve are as follows:

Given curve:

→ \(r(t)=〈4cos(2t),4sin(2t),5t〉\) at the point t=0

To find: Tangent vector, the Normal vector, and the Binormal vector (→T, →N and →B) at the point t=0

Tangent vector: To find the tangent vector of the given curve

→\(r(t)=〈4cos(2t),4sin(2t),5t〉\) at the point t=0,

we need to differentiate the equation of the curve with respect to t.t = 0, we have:

→\(r(t) = 〈4cos(2t),4sin(2t),5t〉→r(0) = 〈4cos(0),4sin(0),5(0)〉= 〈4,0,0〉\)

Differentiating w.r.t t:→\(r(t) = 〈4cos(2t),4sin(2t),5t〉 → r'(t) = 〈-8sin(2t),8cos(2t),5〉t = 0\),

we have:

→\(r'(0) = 〈-8sin(0),8cos(0),5〉= 〈0,8,5〉\)

Therefore, the tangent vector at t = 0 is given by

→\(T(0) = r'(0) / |r'(0)|= 〈0,8,5〉 / sqrt(89)≈〈0.000,0.898,0.441〉\)

Normal vector:To find the normal vector of the given curve

→\(r(t)=〈4cos(2t),4sin(2t),5t〉\)

at the point t=0, we need to differentiate the equation of the tangent vector with respect to t.t = 0, we have:

→\(T(0) = 〈0.000,0.898,0.441〉\)

Differentiating w.r.t t:

→\(T'(t) = 〈-16cos(2t),-16sin(2t),0〉t = 0\),

we have:

→\(T'(0) = 〈-16cos(0),-16sin(0),0〉= 〈-16,0,0〉\)

Therefore, the normal vector at t = 0 is given by

→\(N(0) = T'(0) / |T'(0)|= 〈-16,0,0〉 / 16= 〈-1,0,0〉\)

Binormal vector: To find the binormal vector of the given curve

→\(r(t)=〈4cos(2t),4sin(2t),5t〉\)

at the point t=0, we need to cross-product the equation of the tangent vector and normal vector of the curve.t = 0, we have:

→\(T(0) = 〈0.000,0.898,0.441〉→N(0) = 〈-1,0,0〉\)

The cross product of two vectors:

→\(B(0) = →T(0) × →N(0)= 〈0.000,0.898,0.441〉 × 〈-1,0,0〉= 〈0, -0.441, -0.898〉\)

Therefore, the binormal vector at t = 0 is given by→B(0) = 〈0, -0.441, -0.898〉

Hence, the tangent vector, normal vector, and binormal vector of the given curve at t=0 are as follows:

→\(T(0) = 〈0.000,0.898,0.441〉→N(0) = 〈-1,0,0〉→B(0) = 〈0, -0.441, -0.898〉\)

The given curve is

→\(r(t)=〈4cos(2t),4sin(2t),5t〉 at the point t=0.\)

We are asked to find the tangent vector, the normal vector, and the binormal vector of the given curve at t=0.

the tangent vector at t=0. To find the tangent vector, we need to differentiate the equation of the curve with respect to t. Then, we can substitute t=0 to find the tangent vector at that point. the equation of the curve Is:

→\(r(t) = 〈4cos(2t),4sin(2t),5t〉\)

At t = 0, we have:

→\(r(0) = 〈4cos(0),4sin(0),5(0)〉= 〈4,0,0〉\)

We can differentiate this equation with respect to t to get the tangent vector as:

→\(r'(t) = 〈-8sin(2t),8cos(2t),5〉\)

At t=0, the tangent vector is:

→\(T(0) = r'(0) / |r'(0)|= 〈0,8,5〉 / sqrt(89)≈〈0.000,0.898,0.441〉\)

Next, we find the normal vector. To find the normal vector, we need to differentiate the equation of the tangent vector with respect to t. Then, we can substitute t=0 to find the normal vector at that point.

At t=0, the tangent vector is:

→\(T(0) = 〈0.000,0.898,0.441〉\)

Differentiating this equation with respect to t, we get the normal vector as:

→\(T'(t) = 〈-16cos(2t),-16sin(2t),0〉\)

At t=0, the normal vector is:

→\(N(0) = T'(0) / |T'(0)|= 〈-16,0,0〉 / 16= 〈-1,0,0〉\)

Finally, we find the binormal vector. To find the binormal vector, we need to cross-product the equation of the tangent vector and the normal vector of the curve.

At t=0, we can cross product →T(0) and →N(0) to find the binormal vector.

At t=0, the tangent vector is:

→\(T(0) = 〈0.000,0.898,0.441〉\)

The normal vector is:

→N(0) = 〈-1,0,0〉Cross product of two vectors →T(0) and →N(0) is given as:

→\(B(0) = →T(0) × →N(0)= 〈0.000,0.898,0.441〉 × 〈-1,0,0〉= 〈0, -0.441, -0.898〉\)

Therefore, the tangent vector, normal vector, and binormal vector of the given curve at t=0 are:

→\(T(0) = 〈0.000,0.898,0.441〉→N(0) = 〈-1,0,0〉→B(0) = 〈0, -0.441, -0.898〉\)

The tangent vector of the given curve

→\(r(t)=〈4cos(2t),4sin(2t),5t〉\)

at the point t=0 is given by →\(T(0) = 〈0.000,0.898,0.441〉.\)

The normal vector at t=0 is given by →N(0) = 〈-1,0,0〉.

The binormal vector at t=0 is given by →B(0) = 〈0, -0.441, -0.898〉.

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Answer:

-1/3x

Step-by-step explanation:

the slope formula is y divided by x. it goes down 1 unit and right 3 units. so

-1 divided by 3 is -\(\frac{1}{3}\)

The genre which had the same number of votes in each study is: B. horror.

See the attached charts.

From the bar chart, the number of votes for horror movie is equal to 40 votes. Next, we would calculate the number of votes for horror movie in the pie chart as follows;

Number of votes = 16/100 × 250

Number of votes = 0.16 × 250

Number of votes = 40 votes.

Finally, we may infer rationally that horror is a film genre that receives the same amount of votes in each independent research.

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The probability of producing at least 232,000 barrels is 0.5.

The standard normal distribution table, also known as the z-table, is a table that provides the probabilities for a standard normal distribution, which has a mean of 0 and a standard deviation of 1.

The table lists the probabilities for values of the standard normal distribution between -3.49 and 3.49, in increments of 0.01.

Here we have

Daily output of marathon's garyville, louisiana, refinery is normally distributed with a mean of 232,000 barrels of crude oil per day with a standard deviation of 7,000 barrels.

Since the daily output of the refinery is normally distributed,

we can use the standard normal distribution to calculate the probability of producing at least 232,000 barrels.

First, we need to standardize the value using the formula:

=> z = (x - μ) /σ

where:

x = value we want to calculate the probability for (232,000 barrels)

μ = mean (232,000 barrels)

σ = standard deviation (7,000 barrels)

=> z = (232000 - 232000) / 7000 = 0

Next, we look up the probability of producing at least 0 standard deviations from the mean in the standard normal distribution table.

This value is 0.5.

Therefore,

The probability of producing at least 232,000 barrels is 0.5.

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If "f" has relative-minimum at point (-1,-3) and relative-maximum at point (2,4), then the statement that must be true about graph of "f" should be (c) It has an absolute minimum point, because there is no other points on graph which is lower than -3.

The presence of a relative-minimum at (-1, -3) indicates that the function f(x) is at its lowest value at that point within a specific interval.

Similarly, the relative-maximum at (2, 4) indicates that the highest-value within a certain-range. Since f(x) is lower at (-1, -3) compared to nearby points, and there are no other points on the graph which are lower than -3, we can conclude that f(x) has an absolute minimum at (-1, -3).

The graph do not have a point of inflection, a horizontal asymptote, intersections with both axes, or a horizontal tangent line, as these characteristics are not directly implied by the given information.

Therefore, the correct option is (c).

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The given question is incomplete, the complete question is

Assume the function f(x) is continuous for all real numbers a. If "f" has a relative minimum at the point (-1,-3) and a relative maximum at the point (2,4), which of the following must be true about the graph of "f" ?

(a) It has a point of inflection between z = -1 and z = 2.

(b) It has a horizontal asymptote.

(c) It has an absolute minimum point.

(d) It intersects both axes.

(e) It has a horizontal tangent line.

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\(4(x + 5) = 40\)

Divide sides by 4

\( \frac{4}{4} \times (x + 5) = \frac{40}{4} \\ \)

\(x + 5 = 10\)

Subtract sides 5

\(x + 5 - 5 = 10 - 5\)

\(x = 5\)

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CHECK :

\(4(5 + 5) = 40\)

\(4 \times 10 = 40\)

\(40 = 40\)

Thus the solution is correct.

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Done...

Answer:

Cody should run approximately 19.978 meters along the shore before jumping into the water in order to save the child.Thus,

Step-by-step explanation:

Consider the diagram below.

In this case we need to minimize the time it takes Cody to save the child.

Total time to save the child (T) = Time taken along the shore (A) + Time taken from the shore (B)

The formula to compute time is:

\(time=\frac{distance}{speed}\)

Compute the time taken along the shore as follows:

\(A=\frac{x}{4}\)

Compute the time taken from the shore as follows:

\(B=\frac{\sqrt{70^{2}+(40-x)^{2}}}{1.1}\)

Then the total time taken to save the child is:

\(T=\frac{x}{4}+\frac{\sqrt{70^{2}+(40-x)^{2}}}{1.1}\)

Differentiate T with respect to x as follows:

\(\frac{dT}{dx}=\frac{d}{dx}[\frac{x}{4}]+\frac{d}{dx}[\frac{\sqrt{70^{2}+(40-x)^{2}}}{1.1}]\)

    \(=\frac{1}{4}-\frac{1}{1.1}\cdot \frac{(40-x)}{\sqrt{70^{2}+(40-x)^{2}}}\)

Equate the derivative to 0 to compute the value of x as follows:

                              \(\frac{dT}{dx}=0\)

\(\frac{1}{4}-\frac{1}{1.1}\cdot \frac{(40-x)}{\sqrt{70^{2}+(40-x)^{2}}}=0\\\\\frac{1}{1.1}\cdot \frac{(40-x)}{\sqrt{70^{2}+(40-x)^{2}}}=\frac{1}{4}\\\\4\cdot (40-x)=1.1\cdot [\sqrt{70^{2}+(40-x)^{2}}]\\\\\{4\cdot (40-x)\}^{2}=\{1.1\cdot [\sqrt{70^{2}+(40-x)^{2}}]\}^{2}\\\\16\cdot (40-x)^{2}=1.21\cdot [70^{2}+(40-x)^{2}}]\\\\16\cdot (40-x)^{2}-1.21\cdot (40-x)^{2}=5929\\\\14.79\cdot (40-x)^{2}=5929\\\\(40-x)^{2}=400.88\\\\40-x\approx 20.022\\\\x\approx 40-20.022\\\\x\approx 19.978\)

Thus, Cody should run approximately 19.978 meters along the shore before jumping into the water in order to save the child.

Answer: T=16 ± 0.12 ° CA Aw

Step-by-step explanation: