Find dy/dx and d^2y/dx^2. For which values of t is the curve concave upward? x = t^3 + 1, y = t^2 - t

Answer:

x=-.43

Step-by-step explanation:

13x+2 5x-7 3x-4

21x+2-7-4

21x-9

x=-.428

The DML Compiler translates Data Manipulation Language (DML) queries into Relational Algebra operations to be used by the Relational Database Management System (RDBMS).

The DML Compiler starts by parsing the query to determine which operations are needed. It then builds an Abstract Syntax Tree (AST) which is a hierarchical representation of the query. Next, the DML Compiler will perform semantic analysis on the AST to ensure that all operations are valid and the query is valid. After the semantic analysis has been done, the DML Compiler will then translate the AST into Relational Algebra operations, which are a collection of mathematical rules used to manipulate data in a relational database. Finally, the DML Compiler will generate an executable code and send it to the RDBMS to be executed. The result of the query is then returned to the user.

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Answer:

π+π/∞+∞/√∞+∛∞

Step-by-step explanation:

Answer:

One with a slope of -2 and different y-intercept

e.g. y = -2x + 3

This triangle is warning you to slow down and be prepared to stop. It indicates that a railroad crossing is ahead and you should proceed with caution.

This sign is warning you that a railroad crossing is ahead, and you should proceed with caution. The triangle shape is reflective orange with a red border on each of the three sides. This sign indicates that you should slow down and be prepared to stop as a train may be approaching. You should also look both ways for any oncoming trains before continuing to cross the tracks. Additionally, you should never try to drive around a lowered crossing gate and never cross the tracks until you are sure that it is safe to do so. Always obey the signs and signals at railroad crossings and never take any chances when it comes to safety. Following these rules will help to ensure that everyone stays safe when crossing railroad tracks.

the complete question is : What does a sign with a reflective orange triangle with a red border on each of the three sides warn you off ?

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The sign with a reflective orange triangle with a red border on each of the three sides warn you of Slow moving vehicles.

Here we have to find the reason behind sign with a reflective orange triangle with a red border on each of the three sides.

Basically this type of sign are look like a warning triangle which is also an equilateral  triangle of around 600mm in size made of red reflective material. Where it can be put on the side of the road by anyone to warn other drivers of a breakdown or crash ahead.

And it must also said that the reflective orange triangle on the rear of a vehicle means it is traveling 35 mph or less. And here you may see this sign on road maintenance equipment, farm vehicles, or horse- drawn wagons.

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When describing the central tendency for qualitative data, the measure that is commonly used is the mode.

Unlike quantitative data, where measures such as the mean or median can be used to describe central tendency, qualitative data consists of categories or labels rather than numerical values.

Therefore, the mode is the most appropriate measure for central tendency in this context.

The mode can be useful in summarizing qualitative data by identifying the most common category or response. It provides insight into the most prevalent characteristic or attribute among the data, allowing for a better understanding of the distribution and patterns within the dataset.


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Answer:

x<24

I believe

Step-by-step explanation:

The missing side of the right triangle is as follows:

a = 22.7 units

b = 10.6 units

A right angle triangle is a triangle that has one of its angles as 90 degrees. The sum of angles in a triangle is 180 degrees.

The sides a and b can be found using trigonometric ratios as follows:

Hence,

sin 25 = opposite / hypotenuse

sin 25° = b / 25

cross multiply

b = 25 sin 25

b = 25 × 0.42261826174

b = 10.5654565435

b = 10.6 units

cos 25 = adjacent / hypotenuse

cos 25 = a / 25

cross multiply

a = 25 cos 25

a = 22.6576946759

a = 22.7 units

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Answer:

t = 0.0475p

Step-by-step explanation:

From the options provided, the answer would be ...

t = 0.0475p

Lets say Tonia's paycheck is 25,000 she needs to pay 5% of this to her 401k, meaning she should have 95% left

25,000 * 0.95 = 23,750

Now, 5% of this remainder goes to income tax which would be...

23,750 * 0.05 = 1,187.5

Now if we use the formula and plug in 25,000 for p which is Tonia's paycheck we see that we get the same income tax amount. Therefore, we know it is the correct formula.

t = 0.0475 * 25000

t = 1,187.5

The probability of correctly choosing 4 numbers that match 4 randomly selected balls from a bucket of 35 balls is 1/52360.

To calculate the probability of correctly choosing 4 numbers that match 4 randomly selected balls from a bucket of 35 balls with different numbers from 1 to 35, we need to consider the total number of possible outcomes and the number of favorable outcomes.

Total number of possible outcomes:

Since there are 35 balls in the bucket, the total number of possible outcomes is given by the combination formula:

nCr = n! / [(n-r)! * r!]

In this case, we need to choose 4 balls out of 35, so the total number of possible outcomes is:

35C4 = 35! / [(35-4)! * 4!]

Number of favorable outcomes:

We want to choose 4 numbers that match the 4 randomly selected balls. Since there are 4 balls that need to match, we can consider this as choosing all 4 numbers correctly.

There is only 1 way to choose all 4 numbers correctly.

Therefore, the number of favorable outcomes is 1.

Probability:

The probability of an event is given by the formula:

Probability = Number of favorable outcomes / Total number of possible outcomes

In this case, the probability is:

Probability = 1 / 35C4

Now, let's calculate the probability:

35C4 = 35! / [(35-4)! * 4!]

= (35 * 34 * 33 * 32) / (4 * 3 * 2 * 1)

= 52360

Probability = 1 / 52360

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0.3193 is the probability of your 73% surity that at least seven of these people can read and write ( are not illiterate ).

Probability is a branch of mathematics that deals with numerical representations of the likelihood of an event occurring or of a proposition being true. A probability is a number between 0 and 1, where 1 indicates certainty and 0 indicates impossibility of the event.

p = 0.73

q = 1 - p = 1 - 0.73 = 0.27

n = 8

Using binomial probability formula ,

P(X = x) = (n C x) * px * (1 - p)n - x

P(X > 7) = (8 C 7) * 0.737 * (0.37)8-7  +(8 C 8) * 0.738 * (0.37)8-8

              =  0.238624 + 0.080646

Probability = 0.3193  

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We know that 4 oz of steak contains 700 mg of potassium. We want to know how many mg of potassium a 10 oz steak has. The bigger the steak the more potassium it has, so it is a directly proportional relationship. We can apply a rule of three to find the value we want as shown below:

Since hte relationship is proportional we don't need to invert any of the fractions. The first step is to cross multiply and then solve for x.

A 10 oz steak contains 1750 mg of potassium. We want to know how many percent of the daily value we consumed by eating that steak. To do that we can create another rule of three as shown below:

We ate 50 % of the daily value of potassium recommended.

The distance between the two points (2, 6) and (7, -6) will be 13 units.

Let one point be (x, y) and another point be (h, k). Then the distance between the points will be

D² = (x - h)² + (y - k)²

A right triangle with the two points forming the hypotenuse. The two points are given below.

(2, 6) and (7, -6)

Then the distance between the points (2, 6) and (7, -6) will be given as,

D² = (7 - 2)² + (-6 - 6)²

D² = 5² + (-12)²

D² = 25 + 144

D² = 169

D = 13 units

The distance between the two points (2, 6) and (7, -6) will be 13 units.

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The answer to the question is (a) the coefficient of determination.

The coefficient of determination, denoted as R-squared (R²), represents the proportion of the variance in the dependent variable that can be explained by the independent variable(s) in a regression model. It is a statistical measure that indicates the goodness of fit of the regression line to the observed data. R-squared ranges from 0 to 1, where 0 indicates no linear relationship between the variables, and 1 indicates a perfect fit. In simpler terms, R-squared tells us how well the independent variable(s) can predict the dependent variable. It is commonly used to evaluate the strength and reliability of a regression model and understand the percentage of variability in the dependent variable that can be accounted for by the independent variable(s). #spj11

R-squared to assess the goodness of fit in a regression model. It quantifies the proportion of the dependent variable's variability that can be explained by the independent variable(s). R-squared ranges from 0 to 1, with higher values indicating a better fit. Is R-squared an indicator of the regression line's accuracy? Understand how R-squared provides insights into the relationship between variables and helps evaluate the predictive power of your model.

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The actual distance between the two city is,

⇒ 204 miles

We have to given that,

Montraie is planning to drive from City X to City Y.

And, The scale drawing shows the distance between the two cities with a scale of 1/4 inch = 17 miles.

Since, The distanced for the scale drawing is,

⇒ 3 inches

Hence, The actual distance between the two city is,

⇒ 1/4 inches = 17 miles

⇒ 3 inches = 17 × 4 × 3

⇒ 3 inches = 204 miles

Therefore, The actual distance between the two city is,

⇒ 3 inches = 204 miles

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Answer:

Move the point on the diagonal to (1,4) then move the vertex 4 units left and 3 units upwards

Step-by-step explanation:

The correct answer is Option A. Bisecting an angle

David is performing the construction of bisecting an angle. In geometry, the concept of bisecting refers to dividing a line segment or an angle into two equal parts. A line segment is a part of a line that is defined by two endpoints, whereas an angle is the measure of the space between two intersecting lines. It is measured in degrees.

The process of bisecting an angle is done by following these steps:

Step 1: Place the compass at the vertex of the angle

Step 2: Draw an arc that intersects both the sides of the angle.

Step 3: Without changing the radius of the compass, draw another arc that intersects the first arc.

Step 4: Draw a line that passes through the vertex of the angle and the point of intersection of the two arcs.

This line will bisect the angle in half.

In the given figure, David is performing the construction of bisecting an angle.

Hence, the correct answer is Option A. Bisecting an angle. Always remember to measure the angle first before bisecting it.

Complete Question

Two geometrically similar jugs have volumes of 1000 cm³and 512 cm³.They have circular bases. The diameter of the base of the larger jug is 9 cm.

Calculate the diameter of the smaller jug.

Answer:

7.2 cm

Step-by-step explanation:

To solve the above question,we have the proportion

Smaller volume/ Larger volume = (Smaller diameter/ Larger diameter)³

We are to find the smaller diameter

Hence our formula is give as

Cube root(Smaller volume/ Larger volume)= Smaller diameter/ Larger diameter

=cube root( 512/1000) = x/9

= 8/10 = x/9

Cross Multiply

10x = 8 × 9

10x = 72

x = 72/10

x = 7.2cm

Therefore, the diameter of the second jug is 7.2 cm

Answer: I think it would be 7:5 because half of 14=7 and half of 10=5. by the way, are you good at algebra II by any chance? if so can you help me out in return for me helping you out please?

The table of values corresponding to the linear function that goes through (0, -2) and (2,0) is has points (x,y) in the following format:

(x, x - 2).

A linear function is modeled by:

y = mx + b

In which:

The line goes through (0,-2), hence the y-intercept is b = -2. The slope is given by:

m = (0 - (-2))/(2 - 0) = 2/2 = 1.

Hence the equation is:

y = x - 2.

Thus the points on the table are related as follows:

(x, x - 2).

For example

x  f(x)

0  -2

1   -1

2   0

3   1

4   2

5   3

And so on...

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Answer:

After solving we get (f.g)(5)=-115

But the correct option is not given in the question.

Step-by-step explanation:

We are given:

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

We need to find (f.g)(5)

First we will multiply f and g to find (f.g) i.e

\((f.g)(x)= f(x) \times g(x)\\(f.g)(x) = (4x + 3)(-2x + 5)\\(f.g)(x)=4x(-2x+5)+3(-2x+5)\\(f.g)(x)=-8x^2+20x-6x+15\\(f.g)(x)=-8x^2+14x+15\\\)

Now putting x=5

\((f.g)(x)=-8x^2+14x+15\\Put \ x=5\\(f.g)(5)=-8(5)^2+14(5)+15\\(f.g)(5)=-8(25)+70+15\\(f.g)(5)=-200+70+15\\(f.g)(5)=-115\)

So, after solving we get (f.g)(5)=-115

But the correct option is not given in the question.

Answer:

The volume of Cone B is twice the volume of Cone A.

Step-by-step explanation:

The volume of a cone is given by

V = 1/3 pi r^2 h  where r is the radius and h is the height.

Cone A

d = diameter

r = radius

h = height

V = 1/3 pi r^2 h

Cone B

The diameter is double the diameter of A.

2d  so the radius is 2r

The height is half the height of A.

1/2 h

Substitute into the equation for volume.

V = 1/3 pi ( 2r)^2 (1/2 h)

V = 1/3 pi (4r^2) (1/2h)

V = 1/3 pi 2r^2 h

The volume of Cone B is twice the volume of Cone A.

Answer:

Cone B has a greater volume.

Step-by-step explanation:

Cone B has the greatest volume.

The volume of a cone is calculated using the following formula:

\(\boxed{\bold{\tt{Volume\: of\:cone = \frac{1}{3}\pi*r^2h}}}\)

where:

For Cone A.

\(\boxed{\bold{\tt{Volume\: of\:cone\: (A)= \frac{1}{3}\pi*r^2h}}}\)

For Cone B

In this case, the radius of Cone B is double the radius of Cone A, and the height of Cone B is half the height of Cone A. This means:

radius(r)=2r

height(h)= \(\tt{\frac{1}{2}*\frac{h}{2}}\)

\(\boxed{\bold{\tt{Volume\: of\:cone\: (B)= \frac{1}{3}\pi*(2r)^2*\frac{h}{2}}}}\)

\(\boxed{\bold{\tt{Volume \: of\:cone (B)= 2*\frac{1}{3}\pi*r^2h}}}\)

\(\boxed{\bold{\tt{Volume(B) =2*Volume\: of\:cone(A)}}}\)

Since the volume of cone B is twice the volume of Cone A.

Therefore, Cone B has a greater volume.

There are 8 cutting machines and each machine can cut 4 cases every 15 seconds, or 16 cases per minute (4 cases/15 seconds x 60 seconds/minute = 16 cases/minute). Therefore, all 8 machines can cut a total of 8 x 16 = 128 cases per minute.

If 25% of the machines are removed for maintenance, then 2 machines (25% of 8) will be taken out of service. This leaves 6 machines to continue cutting phone cases.

The 6 remaining machines can cut 6 x 16 = 96 cases per minute (since each machine still cuts 16 cases per minute). Therefore, the 6 remaining machines cut 128 - 96 = 32 fewer cases per minute than all 8 machines together.

So the answer is that the remaining machines cut 32 fewer cases per minute when compared to the number of cases per minute all 8 machines cut.

Observe the graph .

Y intercept=3

More:-

Slope intercept form

Where

Answer:

I have no idea.

but I need points sorry

The 25-lb weight stretched by 0.2 inches.

According to the question, Hooke's law states that the spring can be stretched directly with a force F. Therefore, the expression for the Hooke's law can be written as: F(Force) = extension(d). constant(k)

If a spring is stretched 0.8 inches by 40-lb weight:

40 = 0.8k ⇒k = 50

Now: the stretched inches be:

25 = 50d ⇒ d = 0.2 inches

Hence, the 25-lb weight stretched by 0.2 inches.

What is Hooke's law?

The Hooke's law states that the force produced by the spring is directly proportional to the weight of the spring. And the work done can be done either in the form of stretching or compressing.

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Answer:

15

Step-by-step explanation:

speed is distance over time so its 30 devided by 2