Find the value needed for the “?” to make the equation true.

1/x^? = x^6

Answer: ? =__

The average confidence interval, according to our 80% level of confidence, falls between 31.54 and 35.86 minutes for the total population.

You only have a 5% probability of making a mistake with a 95% confidence interval. You have a 10% probability of being mistaken when the confidence interval is 90%. The difference between a 95 percent and 99 percent confidence interval is the width of the interval (for example, plus or minus 4.5 percent instead of 3.5 percent).

Confidence intervals include details about the range in which the true value is likely to fall, as well as the kind and magnitude of the effect that has been proved. Conclusions concerning the can be made as a result of this.

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Answer:

f(x) = -5/3x + 5/3

Step-by-step explanation:

if x = 4 ; f(x) = -5

if x = -2 ; f(x) = 5

f(x) = ax + b

-5 = 4a + b (1)

and

5 = -2a + b (2)

(1) + (2)

2a + 2b = 0

a = -b

(1) -5 = 4a - a

-5 = 3a

a = -5/3

Answer :

f(x) = -5/3x + 5/3

Answer: \(215\ cm^2\)

Step-by-step explanation:

Given

Here the given figure can be divided into two shapes i.e. rectangle and a trapezium

For rectangle ABCD Area = \(10\times8=80\ cm^2\)

Area of trapezium CEFD Area is \(\frac{1}{2}[\text{sum of non-parallel sides}]\times[\text{distance between them}]\)

\(\Rightarrow \frac{1}{2}\times [10+17][10]=135\ cm^2\)

Total shaded area \(=80+135=215\ cm^2\)

Note that the coordinates of the point A' after rotating 90 degrees clockwise about the point (0,1) are (3, -4). (Option B)

To rotate a point 90 degrees  clockwise about a given point,we can follow these steps -

Translate the coordinates   of the given point so that the center of rotation is at the origin.   In this case,we subtract the coordinates   of the center (0,1) from the coordinates of point A (5,4) to get (-5, 3).

Perform the rotation by swapping the x and y coordinates and changing the sign of the   new x coordinate. In this case,we  swap the x and y coordinates of (-5, 3)   to  get (3, -5).

Translate the coordinates back to their original position   by adding the coordinates of the center (0,1)  to the result from step 2. In   this case, we add (0,1) to (3, -5) to get (3, -4).

Therefore, the coordinates   of the point A' after rotating 90 degrees clockwise about the point (0,1) are (3, -4).

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Sec A is solved to be \(\frac{8}{\sqrt{55} }\)

Solving  cosx / secx - cotx / tan x gives  cos^2 x - cot^2 x

This is division of circle into 4 parts. each part is termed a quadrant

sine θ = opposite / hypotenuse

In the third quadrant:

The opposite = -3

hypotenuse = 8

sec θ = 1 / cos θ

cosθ = adjacent / hypotenuse

From Pythagoras theorem

hypotenuse² = adjacent² + opposite²

adjacent = √64 - 9

= √55

cos θ = √55/8

sec ∅ = 1 / cos ∅ = 8/√55

from trigonometry we know that:

secx = 1 / cosx and cotx = 1 / tanx

plugging the trigonometry values to the given expression gives

cosx / secx - cotx / tan x = cosx / 1/cosx - 1/tanx / tanx

= cosx / 1/cosx - 1/tanx / tanx

= cosx * cosx - cotx * cotx

= cos^2 x - cot^2 x

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Answer:

First mechanic 10 hours, Second is 15 hours

Step-by-step explanation:

x + y = 25, so y = 25 - x

75x + 45y = 1425

Substitute in the first equation

75x + 45(25 - x) = 1425

75x + 1125 - 45x = 1425

30x = 300

x = 10

Therefore, y = 15

Answer:

they both worked

8 hours

Hello,

answer f: conjugate

if all coefficients are real and a+ib a zero, its conjgate a-ib is also a zero.

Answer:

Step-by-step explanation:

Answer:

The answer is the third option

Step-by-step explanation:

When an exponent is raised to the power of another exponent, both exponents are multiplied.
Recall that a number without an exponent is thought to be raised to the power of 1.

So after multiplying the exponents of all of the variables by 4, we are left with a solution identical to the third option.

Answer:

the answer is 105

Step-by-step explanation:

because 5×3=15 so 15×7 =105

Answer:

X=8

Step-by-step explanation:

64 Divided by Eight equals Eight.

Because he worked eight hours that week and earned $64 so divide that up by eight then you got your answer.

The limit lim(x approaches 0) (cosec(2x) - x*cosec³(x)) is undefined.

We have,

To evaluate the limit of the expression as x approaches 0, we can simplify the expression first.

The expression is given as lim(x approaches 0) (cosec(2x) - x cosec³(x)).

Using trigonometric identities, we can rewrite cosec(2x) as 1/sin(2x) and cosec³(x) as 1/(sin(x))³.

Substituting these into the expression,

We get lim(x approaches 0) (1/sin(2x) - x (1/(sin(x))³)).

Now, let's evaluate the limit term by term:

lim(x approaches 0) (1/sin(2x)) = 1/sin(0) = 1/0 (which is undefined).

lim(x approaches 0) (x (1/(sin(x))³))

= 0 (1/(sin(0))³)

= 0 x 1/0 (which is also undefined).

Since both terms of the expression are undefined as x approaches 0, we cannot determine the limit of the expression.

Therefore,

The limit lim(x approaches 0) (cosec(2x) - x*cosec³(x)) is undefined.

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Answer:

Location AB BC AC m∠ABC m∠BAC m∠ACB

A(3, 4), B(1, 1), C(5, 1) 3.61 units 4 units 3.61 units 56.31° 67.38° 56.31°

A(4, 5), B(2, 1), C(7, 3) 4.47 units 5.39 units 3.61 units 41.63° 82.87° 55.49°

A(3, 6), B(3, -2), C(-3, -2) 8 units 6 units 10 units 90° 36.87° 53.13°Step-by-step explanation:

According to the locations given in the table, diagrams have been attached using GeoGebra.

GeoGebra is a dynamic mathematics software for all levels of education that brings together geometry, algebra, spreadsheets, graphing, statistics and calculus in one engine.

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Approximately 95.45% of the observations fall between 32 and 48.

Using the Empirical Rule, we can calculate the Z scores for 32 and 48 to see what percentage of observations falls between these values.

First, calculate the Z score for 32:

Z = (32 - 40) / 4 = -2

Next, calculate the Z score for 48:

Z = (48 - 40) / 4 = 2

The Empirical Rule states that approximately 68% of the observations fall within 1 standard deviation of the mean, which is between 36 and 44 in this case. However, since the Z scores for 32 and 48 are both outside of this range, we need to calculate the percentage of observations that falls between these Z scores.

Using a standard normal distribution table, we can see that the percentage of observations between Z = -2 and Z = 2 is approximately 95.45%. This means that approximately 95.45% of the observations fall between 32 and 48.

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--The given question is incomplete; the complete question is

"Data are drawn from a normal distribution with a mean of 40. the standard deviation of 4. Use the Empirical Rule. SKETCH the values and calculate the Z scores. a) Approximately what percentage of the observations fall between 32 and 48?"--

Answer:

Option D

Step-by-step explanation:

correct answer on edge :)

Answer:

D <3

Step-by-step explanation:

We know that the sum of the internal angles is equal to 180°, then we write and solve a linear equation to see that the missing angle is 94°.

Remember that for any triangle, we know that the sum of the interior angles is equal to 180°.

In this case we know that two of the angles have a measure of 62° and 24°, and if the third angle is x, then we can write the linear equation:

62° + 24° + x = 180°

To solve this we need to isolate x, we will get:

x = 180° - 24° - 62°

x = 94°

So the measure of the third interior angle is 94 degrees.

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Answer:

Y(0,13)

X(13,0)

Answer: what unit is this?

Step-by-step explanation:yeah I’ll need the unit to solve this question

Answer:

Hope this helps ;)

Step-by-step explanation:

To find the time it takes the T-shirt to reach its maximum height, we need to find the value of t when the velocity of the T-shirt is zero, because at this point the T-shirt has reached its maximum height and starts falling back down. We can find the velocity of the T-shirt by taking the derivative of the height equation with respect to time:

v(t) = h'(t) = 72

The velocity of the T-shirt is a constant 72 feet per second, so it will never reach a velocity of zero and will never reach its maximum height. The T-shirt will keep going up indefinitely.

If the problem had specified that the T-shirt was launched with an initial upward velocity of -72 feet per second (meaning it was launched downward), then we could have found the time it takes the T-shirt to reach its maximum height by setting v(t) = 0 and solving for t. In this case, we would find that t = 1, so it would take the T-shirt 1 second to reach its maximum height. The maximum height would be h(1) = -16 + 72(1) + 6 = 62 feet.

First, solve for two points as an equation instead of an inequality to find the boundary line for the inequality.

For: x=0

(-5.0) +2y  =-6

0+2y = -6

2y =-6

2y/2= -6/2

y =-3  or (0 , -3)

For: x=2

(-5.2+2y)=-6

-10+2y =-6

10+10+2y=10+ −6

0+2y=4

#2y = 4

2y/2=4/2

y=2 or (2,2)

We can now graph the two points on the coordinate plane and draw a line through the points to mark the boundary of the inequality.

graph{(x^2+(y+3)^2-0.125)((x-2)^2+(y-2)^2-0.125)(-5x+2y+6)=0 [-20, 20, -10, 10]}

Now, we can shade the left side of the line.

We need to change the boundary to a dashed line because the inequality operator does not contain an "or equal to" clause.

graph{(-5x+2y+6) > 0 [-20, 20, -10, 10]}

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(-4-3) (5+5) = -7,10

Given that :

the radius of the cylinder and sphere = 4 units

the height of the cylinder (h) is equal to the diameter (d) of the sphere

the diameter of the sphere = 2 x radius = 2 x 4 = 8 units

also, the height of the cylinder = 8 units

The volume of the cylinder can be calculated using the formula:

The volume of the Cylinder

Answer:

Given that :

the radius of the cylinder and sphere = 4 units

the height of the cylinder (h) is equal to the diameter (d) of the sphere

the diameter of the sphere = 2 x radius = 2 x 4 = 8 units

also, the height of the cylinder = 8 units

The volume of the cylinder can be calculated using the formula:

The volume of the Cylinder

Step-by-step explanation:

Answer:

But the 2lbs.

Step-by-step explanation:

Divide $9.19 by 2 and you get 4.595 which would be the cheapest option out of the 3 because the 1lb is $7.05 and the 3lb is $5.13.

You're welcome.

Answer:

first question: 36

second question: 5

Step-by-step explanation:

for the first question, the parentheses just mean you are multiplying. so it would be 2 x 3 x 6 which equals 36.

For the second question, you would add d and g together and e and f, then subtract the sum of e and f from the sum of d and g.

(2 + 12) - (3 + 6)

14 - 9 = 5

Step-by-step explanation:

d=2

e=3

f=6

g=12

therefore , (2)×(3)×(6)

=36

2. d=2

e=3

f=6

g=12

(d+g) - (e+f)

(2+12) - (3+6)

(14) -(9)

=5.

Answer:

2.2

Explanation:

5b - 8 = 3

5b = 3 + 8

5b = 11

b = 11/5

b = 2.2

Answer:

b=2.2 ✨

Explanation:

5b - 8 = 3

5b = 3 + 8

5b = 11

b = \(\frac{11}{5}\)

b = 2.2

Have a great time studying

Answer:

x = - 1

Step-by-step explanation:

P = \(\frac{x-2}{x+1}\)

the denominator of the rational function cannot be zero as this would make it undefined. Equating the denominator to zero and solving gives the value that x cannot be.

x + 1 = 0 ( subtract 1 from both sides )

x = - 1

P is undefined when x = - 1

This is a question that asks about the advantages of a systematic random sampling. Thus, we first take a look at the types of sampling, and then we see the advantage of systematic random sampling.

Samples may be classified as:

Convenient: Sample drawn from a conveniently available pool.

Random: Basically, put all the options into a hat and drawn some of them.

Systematic: Every kth element is taken. For example, you want to survey something on the street, you interview every 5th person, for example.

Cluster: Divides population into groups, called clusters, and each element in the cluster is surveyed.

Stratified: Also divides the population into groups. However, then only some elements of the group are surveyed.

Systematic:

One of the bigger advantages is that the systematic sampling eliminate clusters, which means that the last option is wrong.

Inadvertently missing patterns is a problem in systematic sampling, and not an advantage, thus the third option is also wrong.

It also does not reduce sampling variability, thus the first option is wrong.

From this, it can be concluded that the correct option is:

Systematic random sampling does not require a finite population size.

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