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x-coordinates for the maximum points in any  function  f(x) by f'(x) =0 would be  x = π/2 and x= 3π/2.

To find the maximum of a continuous and twice differentiable function f(x), we can firstly differentiate it with respect to x and equating it to 0 will give us critical points.

we want to find x-coordinates for the maximum points in any  function  f(x) by f'(x) =0

Given f(x)= 4cos(2x -π)

\(f'(x) = 0\\- 4sin(2x -\pi ) =0\\\\sin (2x -\pi ) =0 \\2x -\pi = k\pi ... k in Z\)

In general  \(x=(k+1)\pi /2\)

from x = 0 to x = 2π :

when k =0  then  x = π/2

when k =1  then x= π

when k =2  then x= 3π/2

when k =3  then x=2π

Thus, X-coordinates of maximum points are  x = π/2 and x= 3π/2

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Answer: n=64

Step-by-step explanation:

Answer:

3. 16.67

4. 25

Step-by-step explanation:

3. x+2÷8=14/6 (similar triangles have corresponding proportional sides)

x+2=(7×8)/3

x=56/3-6/3 (LCM)

x= 50/3

4. 27/72= (-4+4x)/64

3/2= (-1+x)/16

-1+x=24

x=24+1

Answer:

0.03125

Step-by-step explanation:

formula:

divide the mass value by 16

Answer:

1 pound

Step-by-step explanation:

The probability that x is less than 6 is 5/8.

If x is a discrete uniform random variable ranging from one to eight, then each value from one to eight is equally likely to occur, and the probability of any particular value is 1/8.

To find p(x < 6), we need to add up the probabilities of all the values of x that are less than 6:

p(x < 6) = p(x = 1) + p(x = 2) + p(x = 3) + p(x = 4) + p(x = 5)

Since x is a discrete uniform random variable, the probability of each of these values is 1/8, so we can substitute that into the equation:

p(x < 6) = (1/8) + (1/8) + (1/8) + (1/8) + (1/8)

Simplifying, we get:

p(x < 6) = 5/8

Therefore, the probability that x is less than 6 is 5/8.

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The total amount is $967.5

The cost for renting the bus is, $450

The cost for food is, $28.75 per person.

Let x be the number of people the marching band could bring​, then,

Thus, it is the required equation. On solving we have,

Thus, the number of persons is 18.

Answer:

Step-by-step explanation:

the two angles are congruent, they are like opposite angles, look at the figure

21x - 6 = 20x

21x - 20x = 6

x = 6°

---------------------

check

21x - 6 = 20x

21 * 6 - 6 = 20 * 6

120  =  120

the answer is good

ABC is a right angle

ABCD is a parallelogram

Opposite sides of a parallelogram are equal

So

Opposite angles are equal

<B=<D

Hence

∆ABC and ∆CDB are congruent by SAS

Answer:

433.5 in²

Step-by-step explanation:

A cube has 6 sides

Area of 1 side = 8.5 x 8.5 = 72.25 in²

Area of 6 sides = 72.25 x 6 = 433.5 in²

Answer: c-433.5

Step-by-step explanation: A cube has 6 sides

Area of 1 side = 8.5 x 8.5 = 72.25 in²

Area of 6 sides = 72.25 x 6 = 433.5 in²

Answer: 433.5 in²

The relationship between e, f and g is an illustration of ratio

The ratio e : g is 2 : 7

The given parameters are:

e : f = 3 : 7

f : g = 2 : 3

Multiply e : f by 2.

So, we have:

e : f = 6 : 14

Multiply f : g by 7.

So, we have:

f : g = 14 : 21

Merge both ratios

e : f : f : g = 6 : 14 : 14 : 21

Remove repetition

e : f : g = 6 : 14 : 21

Remove f

e : g = 6 : 21

Divide by 3

e : g = 2 : 7

Hence, the ratio e : g is 2 : 7

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Answer:

\(m=\frac{4}{5}\)

General Formulas and Concepts:

Pre-Algebra

Algebra I

Step-by-step explanation:

Step 1: Define

Pick any 2 points from the chart.

Point (-5, -7)

Point (0, -3)

Step 2: Find slope m

Answer:

The answer is A :))

Step-by-step explanation:

Answer:

{t| 0 ≤ t ≤ 3}

Step-by-step explanation:

answer edge2020

Answer:

275 km per day

Step-by-step explanation:

do you need any other conversions? like how many km per hour?

To determine the uncertainty associated with the mean temperature estimate based on the five measurements, you can calculate the standard deviation of the data. The standard deviation measures the average amount of variation or spread in the temperature measurements.

Here's how you can calculate the uncertainty:

1. Take the five temperature measurements and calculate their mean (average) temperature.

2. Calculate the difference between each measurement and the mean temperature.

3. Square each difference obtained in step 2 to eliminate negative values.

4. Calculate the average of the squared differences obtained in step 3. This is called the variance.

5. Take the square root of the variance calculated in step 4. This is the standard deviation.

The standard deviation provides a measure of the uncertainty associated with the mean temperature estimate. It indicates how much the individual measurements deviate from the mean, giving you an idea of the variability in the data.

It's important to note that this method assumes the temperature measurements follow a normal distribution and that the measurements are independent and unbiased. If there are concerns about the assumptions or if the data doesn't meet these criteria, alternative statistical techniques may be needed to estimate the uncertainty.

Answer:

Since there is one value of y for every x in the relation above, yes this relation is a function.

I hope this helped you get to your answer, or at least help you out a bit. Thanks and have a great day of learning!

Answer:

Simple random sampling

Answer:

c

Step-by-step explanation:

Answer:

Equation: 80-25= m

Solution: 80-25= 55

Check: 25+55= 80

Step-by-step explanation:

BigBrain

Answer:

the answer is c, 25.

Step-by-step explanation:

Applying ratios, the length of segment EG is: 6.

Since the ratio of DE:EF:FG is 4:2:1, we know that DE =4x, EF = 2x, and FG = x, where x is some value. We also know that DG = DE+EF+FG, so we can set up the equation:

14 = 4x + 2x + x

Simplifying, we get:

14 = 7x

Dividing both sides by 7, we find that x = 2.

So, DE = 4x = 4(2) = 8, EF = 2x = 2(2) = 4, and FG = x = 2.

EG = EF + FG = 4 + 2 = 6.

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The corresponding angles and sides of the two triangles need to be given in order to prove congruence by side-angle-side.

In order to prove congruence by side-angle-side, the corresponding angles and sides of the two triangles must be given. The sides must be proportional, which means that two sides of one triangle must be equal to two sides of the other triangle, and the angles between these two sides must also be equal. In other words, if two sides of one triangle are equal to two sides of the other triangle, and the angle between those two sides is also equal, then the two triangles are congruent. This can be expressed as “If two sides and the included angle of one triangle are equal to the corresponding sides and angle of a second triangle, then the two triangles are congruent.” In order to prove congruence by side-angle-side, all of the corresponding sides and angles must be given in order to show that they are equal.

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The additional information that is needed to prove the triangles are congruent by Side-Angle -Side us that the corresponding angles and sides of the two triangles need to be given .

What is Side-Angle-Side Congruence ?

The Two Triangles can be called as  Congruent by Side-Angle-Side rule  if any 2 sides and angle included between sides of one triangle is equivalent to corresponding 2 sides and angle between sides of second triangle .

In order to prove the Congruence by Side-Angle-Side, the corresponding angles and the sides of the 2 triangles must be given.

The sides must also be in proportional, that means that the two sides of one triangle must be equal to two sides of other triangle, and

the angles between these two sides of the triangle must  be equal.

So , In order to prove a triangle congruent by Side-Angle-Side, all of the corresponding sides and angles must be given in order to prove  that they are equal.

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We have that:

then, in this case, we have:

therefore, the velocity of the cart is 0.9 meters per second.

Answer:

14

Step-by-step explanation:

101.4^0.5 = 10.0697 etc

it says estimate so I'm going to round that to 10

6.43^0 Anything with an exponent of 0 = 1

7.99^(2/3) = 3.9966 etc you can round that to 4

Put in the values:

10 + 1 × 4

Use PEMDAS

Parentheses

Exponents

Multiplication

Division

Addition

We have to multiply 1 × 4 which is 4

We're left with 10 + 4 which is 14

Answer:

14

Step-by-step explanation:

\(\sf 101.4^{0.5} +6.43^0 \times 7.99^{\frac23}\)

\(\begin{aligned}\sf 101.4^{0.5} +6.43^0 \times 7.99^{\frac23} & = \sf \sqrt{100} +1 \times8^{\frac23}\\\sf & = \sf 10 + (8^{\frac13})^2\\& = \sf 10 + (2)^2\\& = \sf 10 + 4\\& = \sf 14\end{aligned}\)

Answer:35N

Step-by-step explanation:

Cross multiply and divide to find the missing value