HELP ASAP!! SOMEONE DO NUMBER 1 TO 4 FOR ME PLEASE IM RUSHING. ILL GIVE BRAINLIEST

Answer:

Step-by-step explanation:

S is3/4

Intercept is 5

Answer:

Solution given:

letA=(10,-4)

B=(-2,-4)

centre[C](h,k)=\(\frac{10-2}{2},\frac{-4-4}{2}=(+4,-4)\)

radius=\(\sqrt{(4-10)²+(-4+4)²}=6\)units

we have

Equation of a circle is;

(x-h)²+(y-k)²=r²

(x-4)²+(y+4)²=36

or.

x²-8x+16+y²+8y+16=36

x²-8x+8y+y²=36-32

x²-8x+8y+y²=4

The equation is (x-4)²+(y+4)²=36 or x²-8x+8y+y²=4.

Answer:

\( \rm\displaystyle (x - 4) ^{2} + {(y + 4)}^{2} = 36\)

Step-by-step explanation:

the given points are the diameter points of circle because notice that in the both points y coordinate is the same therefore it's a horizontal diameter

since (10,-4),(-2,-4) are the diameter points of the circle the midpoint of the diameter will be the centre of the circle

remember midpoint formula,

\( \displaystyle M = \left( \frac{x _{1} + x_{2} }{2} , \frac{ y_{2} + y_{2}}{2} \right)\)

let,

thus substitute:

\( \rm\displaystyle M = \left( \frac{10 + ( - 2)}{2} , \frac{ - 4 + ( - 4)}{2} \right)\)

simplify addition:

\( \rm\displaystyle M = \left( \frac{8}{2} , \frac{ - 8}{2} \right)\)

simplify division:

\( \rm\displaystyle M = \left( 4, - 4 \right)\)

so the centre of the circle is (4,-4)

since it's a horizontal diameter the the redious will be the difference between the x coordinate of the Midpoint and the any x coordinate of the given two points but I'll use (-2,-4) therefore the redious is

\( \displaystyle r = 4 - ( - 2)\)

simplify which yields:

\( \displaystyle\boxed{ r =6}\)

recall the equation of circle

\( \displaystyle (x - h) ^{2} + {(y - k)}^{2} = {r}^{2} \)

we acquire that,

therefore substitute:

\( \rm\displaystyle (x - 4) ^{2} + {(y - ( - 4))}^{2} = {6}^{2} \)

simplify:

\( \rm\displaystyle (x - 4) ^{2} + {(y + 4)}^{2} = 36\)

and we are done!

also refer the attachment

(the graph is web resource of desmos)

If Leona and Fred are friendly competitors in high school. the probability that the scores differ by 5 or more points in either direction is: 0.0771.

Let F = Fred

Let L= Leona

In a situation where F and L are respective score , F -  L is has this distribution N(0, √2² + 2²)

Now let find the Probability

P(Fred score 5 point more than Leona) + P(Leona score 5 point more than Fred)

= P(F-L>5) +P(L-F>5) = P(Z> 5-0/√8) +  P(Z> 0-5/√8)

P(Z>1.7678)+ =P(Z< -1.7678)

=2P(Z>1.7678)

=2(0.03854)

=0.0771

Therefore the probability is 0.0771.

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Answer:

the answer is c

Step-by-step explanation:

please mark this answer as brainliest

Answer:

The answer is c

Step-by-step explanation:

By moving 5 units to the right you lend at x-1 y-3

To calculate the cost of driving a diesel tractor trailer truck for 175.0 miles, we need to determine the number of gallons of fuel required and then multiply it by the cost per gallon.

Calculate the number of gallons of fuel needed. Given that the truck gets 8.500 miles per gallon, we divide the total distance (175.0 miles) by the fuel efficiency: 175.0 miles / 8.500 miles per gallon

= 20.59 gallons (approximately)

Calculate the cost of the fuel.Since diesel fuel costs $3.599 per gallon, we multiply the number of gallons needed by the cost per gallon: 20.59 gallons x $3.599/gallon = $73.89 (approximately) Therefore, it will cost you approximately $73.89 to drive the diesel tractor trailer truck for 175.0 miles, assuming it gets 8.500 miles per gallon and diesel fuel costs $3.599 per gallon.

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The critical value of f(x) = 5x⁶ - 3x⁵ is x = 0.5 which is also its maxima point

f(x) = 5x⁶ - 3x⁵

differentiation w.r.t x

=> f'(x) = 30x⁵ - 15x⁴

Putting f'(x) = 0

30x⁵ - 15x⁴ = 0

=> x⁴(30x - 15) =0

=> 30x - 15 = 0

=> x = 15/30

=> x = 0.5 , 0

Critical number is 0.5 , 0

(B) To find where f(x) is increasing

for x > 0.5 ,

(30x-15) > 0 => x⁴(30x - 15) > 0

Therefore , f(x) is increasing at ( 0.5 , ∞ )

(C)To find where f(x) is decreasing

for x < 0.5 ,

(30x-15) < 0 => x⁴(30x - 15) < 0

Therefore , f(x) is decreasing at ( -∞ , 0.5)

(D) Differentiation f'(x) again w.r.t to x

f'(x) = 30x⁵ - 15x⁴

f"(X) = 150x⁴ - 60x³

Substituting critical values of x

=> 150(0.5)⁴ - 60(0.5)³

=>9.375 - 7.5

=> -1.875 < 0 , Hence , x = 0.5 is point of maxima

(E) no point of minima

Similarly , we can solve other parts

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The equation of each line in slope intercept form y = 2x + 3,x = 4

The equation of a line in slope-intercept form (y = mx + b), the slope (m) and the y-intercept (b). The slope-intercept form is a convenient way to express a linear equation.

Equation of a line with slope m and y-intercept b:

y = mx + b

Equation of a vertical line:

For a vertical line with x = c, where c is a constant, the slope is undefined (since the line is vertical) and the equation becomes:

x = c

An example for each case:

Example with given slope and y-intercept:

Slope (m) = 2

y-intercept (b) = 3

Equation: y = 2x + 3

Example with a vertical line:

For a vertical line passing through x = 4:

Equation: x = 4

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Answer:

y=mx+b

Step-by-step explanation:

Answer:

1,45 cubic units

Step-by-step explanation:

The method of cylindrical shells demands that the volume of the solid is given by:

\(V=2\pi\int_a^b xf(x)dx\)       (1)

In this case you have that f(x) is:

\(f(x)=cos(\frac{\pi}{2}x)\)

a = 0

b = 1

First, you solve the integral, by parts:

\(\int xf(x)dx=\int xcos(\frac{\pi}{2}x)dx=x(\frac{2}{\pi})sin(\frac{\pi}{2}x)-\int (\frac{2}{\pi})sin(\frac{\pi}{2}x)dx\\\\=(\frac{2}{\pi})xsin(\frac{\pi}{2}x)+(\frac{2}{\pi})^2cos(\frac{\pi}{2}x)+C\)

Next, you calculate the volume of the solid, by replacing the solution to the integral in the equation (1):

\(V=2\pi[(\frac{2}{\pi})xsin(\frac{\pi}{2}x)+(\frac{2}{\pi})^2cos(\frac{\pi}{2}x)]_0^1\\\\V=2\pi[(\frac{2}{\pi})-(\frac{2}{\pi})^2]=1,45u^3\)

hence, the volume of the solid generated is 1,45 cubic units

A) The measure of central tendency that best describes the data for time spent on the internet (min/day) is the median.

The median is the middle value in a set of data when the data is arranged in numerical order. In this case, the data arranged in numerical order is 38, 43, 48, 52, 65, 75, 120. The median value is 52, which is the middle value in the data set.

B) The measure of central tendency that best describes the data for the weight of books (oz) is the mode. The mode is the value that occurs most frequently in a data set. In this case, the data is 12, 10, 9, 15, 16, 10. The mode is 10, as it occurs twice in the data set and is the most frequent value.

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Answer:

Step-by-step explanation:

you didn’t post the given line.

if it’s parallel, that means they have the same slope.

Answer:

2

Step-by-step explanation:

8% - 8/100 = 0.08

0.08 x 25 = 2

The statement that best describes what a p-value is in terms of hypothesis testing is: It is a measure of the strength of the evidence against the null hypothesis.

What is a p-value?

In statistics, the p-value is the likelihood of obtaining the observed results of a test, or anything more extreme, assuming that the null hypothesis is true.

The null hypothesis is a statistical hypothesis that assumes that the statistical data used in the analysis are insignificant and that the observed differences can only be due to chance.

The p-value is a critical measure in hypothesis testing since it determines the statistical importance of the evidence against the null hypothesis.

The p-value is a percentage value that ranges from 0 to 1.

When p ≤ 0.05, we reject the null hypothesis because the observed evidence is statistically significant. If p > 0.05, we accept the null hypothesis because the observed evidence is not statistically significant.

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The density of \(\(c - \frac{1}{\bar{h}}\) is given by: \\\[f(x) = \frac{1}{\Gamma(n\alpha)\beta^{n\alpha}} x^{n\alpha - 1} e^{-\frac{x}{\beta}}\]\)

To find the distribution of \(\(\hat{\theta}\), we are given that \(c - \frac{1}{\bar{h}}\) has a gamma \(n\alpha, \beta\)\) distribution. The gamma distribution is defined as:

\(\[f(x) = \frac{1}{\Gamma(\alpha)\beta^\alpha} x^{\alpha - 1} e^{-\frac{x}{\beta}}\]\)

where\(\(\Gamma(\alpha)\)\) is the gamma function.

Now, let's find the density of\(\(c - \frac{1}{\bar{h}}\). Since \(c - \frac{1}{\bar{h}}\) has a gamma \(n\alpha, \beta\) distribution, we have:\[f(x) = \frac{1}{\Gamma(n\alpha)\beta^{n\alpha}} x^{n\alpha - 1} e^{-\frac{x}{\beta}}\]\)

where \(\(n\alpha\) is the shape parameter and \(\beta\)\) is the scale parameter.

Therefore, the density of \(\(c - \frac{1}{\bar{h}}\) is given by:\[f(x) = \frac{1}{\Gamma(n\alpha)\beta^{n\alpha}} x^{n\alpha - 1} e^{-\frac{x}{\beta}}\]This is the desired density for the distribution of \(c - \frac{1}{\bar{h}}\).\)

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By using the properties of the gamma distribution and substituting the given parameters, we have derived the density function for c−1h¯, which follows a gamma nα, βnc distribution.

To find the distribution of ˆθ, we are given that c−1h¯ follows a gamma nα, βnc distribution. Let's break down the problem step by step.

1. We know that c−1h¯ follows a gamma nα, βnc distribution. The gamma distribution is defined as:

\(\(f(x) = \frac{(\beta^\alpha \cdot x^{\alpha-1} \cdot e^{-\beta x})}{\Gamma(\alpha)}\)\)

  where α > 0 is the shape parameter, β > 0 is the rate parameter, x > 0 is the random variable, and Γ(α) is the gamma function.

2. To find the density of c−1h¯, we substitute the given parameters nα and βnc into the gamma distribution formula. So the density of c−1h¯ is:

\(\(f(c−1h¯) = \frac{(\beta^\alpha \cdot (c−1h¯)^{\alpha-1} \cdot e^{-\beta(c−1h¯)})}{\Gamma(\alpha)}\)\)

3. Simplifying the expression, we have:

\(\(f(c−1h¯) = \frac{(\beta^\alpha \cdot (c−1)^{\alpha-1} \cdot h¯^{\alpha-1} \cdot e^{-\beta(c−1h¯)})}{\Gamma(\alpha)}\)\)

4. Hence, we have shown that c−1h¯ has a gamma nα, βnc distribution, and its density is given by:

\(\(f(c−1h¯) = \frac{(\beta^\alpha \cdot (c−1)^{\alpha-1} \cdot h¯^{\alpha-1} \cdot e^{-\beta(c−1h¯)})}{\Gamma(\alpha)}\)\)

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The solution is an infinite solution.

An infinite solution can be defined as a solution with both sides equal to each other

Given the expression;

-15 - 3w = 4w - 2w

Let's simply the expression

Collect like terms

- 3w - 4w + 2w = 15

Add or subtract like terms

-5w = 15

Make 'w' the subject

w = 15/ -5

w = -3

Thus, the solution is an infinite solution.

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The initial 50 miles distance from the lighthouse and the N 30° W and N 40° W bearing of the ship before and after traveling due east, using the law of sines, indicates.

The law of sines states that in a triangle, the ratio of the length of a side to the sine of the angle opposite that side is the same for each of the three sides of the triangle.

The distance of the ship from the lighthouse = 50 miles

Bearing of the lighthouse from the ship = N 30° W

The direction in which the ship travels = due east

The new bearing to the lighthouse = N 40° W

In the triangle formed by the initial and new locations of the ship and the lighthouse, the interior angles, A, B, C are;

m∠A = 30° + 90° = 120°

m∠B = 90° - 40° = 50°

Therefore; m∠C = 180° - (120° + 50°) = 10°

Angle opposite the initial distance of the ship from the lighthouse = ∠B = 50°

The angle opposite the new distance of the ship from the lighthouse = m∠A = 120°

The law of sines indicate that we have;

\(\dfrac{50}{sin(50^{\circ})} = \dfrac{New \, distance}{sin(120^{\circ})}\)

50 × sin(120°) = The new distance of the lighthouse × sin(50°)

The new distance of the lighthouse = 50 × sin(120°)/(sin(50°)) ≈ 56.53

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Answer:

2:5

Step-by-step explanation:

15 are female. 10 must be male.

Out of 25 pupils, 10 are male, so it's 10:25, or 2:5

Answer:

89

Step-by-step explanation:

Using the rule for alternate angles, angle ACD is also 39 degrees.

After finding this, we now have the 2 angles in the triangle: 50 and 39 .

Using this we can calculate the value of the angle adjacent to x: 180 - (50+39) = 91.

X and the adjacent angle are on a straight line so they add up to 180.

so, x = 180 - 91 = 89

Hope this helps.

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18/24=0.75

?/80=.75

80x.75=?

?=60

5x+10=60

    -10  -10

5x=50

/5   /5

x=10

sub x in for 10

10x5=50+10=60

C.X=10

The technique that most clearly minimizes the likelihood that any outcome differences between the experimental and control groups is e. random assignment.

A methodology used to divide research participants into two groups—the treatment group, also known as the experimental group, and the control group—by randomization is known as random assignment, also known as random placement.

Every research volunteer has an equal chance of being assigned to any of the groups thanks to this randomization mechanism.

In studies, random assignment is a method used to divide participants into different research groups with similar characteristics so that the groups are equal at the start of the investigation.

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Which technique most clearly minimizes the likelihood that any outcome differences between the experimental and control groups can be attributed to age or personality differences in research participants?

a. the double-blind procedure

b. statistical measurement

c. replication

d. operational definitions

e. random assignment

Answer:

3x

Step-by-step explanation:

m= -1 , c=3

that is the answer for ur question. hope it helped

The correct answers are that Earth’s North Pole is close to the magnetic south pole, magnets allowed to move freely align themselves to point north, and the north pole on a compass is attracted to Earth’s south pole. I really hope this helps you!!

Answer:

Did you learn about equal rectangles? we can prove AEB and CED are equal, which results in what we need to prove here

AE = CE and BE = DE. This can be proved with the help of the properties of congruent triangles.

'A parallelogram is a special kind of quadrilateral that is formed by parallel lines. The angle between the adjacent sides of a parallelogram may vary but the opposite sides need to be parallel for it to be a parallelogram. A quadrilateral will be a parallelogram if its opposite sides are parallel and congruent.'

According to the given problem,

ABCD is a parallelogram.

We know,

BC ║ AD and BC ≅ AD

From, the properties of a parallelogram,

∠CBD = ∠ADB

∠BCA = ∠DAC

We know, two lines are parallel and alternate interior angles of the parallelogram are equal.

Also, Δ BEC ≅ ΔAED (Angle-Side-Angle)

Therefore, AE ≅ CE ( The properties of congruent triangles )

                  BE ≅ DE ( The properties of congruent triangles )

Hence, we can conclude, in the parallelogram ABCD, AE = CE and BE = DE from the properties of congruent triangles.

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Answer:

b value is 3

rise = 3 run = -2

another point could be (2,0)

Step-by-step explanation:

The volume of sphere is 1437.33 if the given radius is 7 .

What is Surface area of sphere ?

Surface area of sphere can be defined as the product of four , pi and square of radius. And here the value of pi could be 3.14 or 22/7 .

Given ,

Volume of a sphere = 4/3πr³

π = 22/7

r = 7

Volume of a sphere = 4/3πr³

= 4/3 * 22/7 * 7³

= 4/3 * 22/7 * 7 * 7 * 7

= (4 * 22 * 7 * 7 * 7) / (3 * 7)

= 30,184/21

= 1437.3333333333

Volume of a sphere = 1,437.33

Therefore, the volume of sphere is 1437.33 if the given radius is 7 .

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Answer:

432/120 or 18/5 or 3 3/5

Step-by-step explanation:

Once you multiply all the fractions, you get 432/120

Then you simplify to the furthest

Answer:

1) 25deg. Angle EGF

2) 25deg. Angle BGC

3) Angle 2 and BGC or Angle 1 and EGF

Answer:

A

Step-by-step explanation:

Ratio of volume is ratio of the radius raised to the power 3.

The ratio of the volume of the spheres is 27 : 343

A sphere is symmetrical, round in shape. It is a three dimensional solid, that has all its surface points at equal distances from the center. It has surface area and volume based on its radius. It does not have any faces, corners or edges.

The Surface Area of a Sphere = 4πr²

The Volume of a Sphere = ( 4/3 ) πr³

where r is the radius of the sphere

Given data ,

The ratio of the radii of two spheres is 3:7.

Therefore, if the smaller sphere has a radius of 3x, then the larger sphere has a radius of 7x.

The ratio of the volumes of the two spheres is given by:

(Volume of smaller sphere) : (Volume of larger sphere) = (4/3)π(3x)³ : (4/3)π(7x)³

Simplifying the above expression, we get:

(Volume of smaller sphere) : (Volume of larger sphere) = 27 : 343

Hence , the ratio of the volumes of the two spheres is 27 : 343

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The underlying function f(x - i) that generates the observed points f'(x - i) in the plot can be determined by integrating the observed points. By integrating f'(x - i), we can obtain f(x - i) up to a constant of integration.

The constant of integration can be determined by incorporating additional information or constraints related to the problem or by considering the behavior of the function at a specific point.

To find the underlying function f(x - i) that generates the observed points f'(x - i), we need to integrate the observed points.

Integration is the reverse process of differentiation, so by integrating f'(x - i), we can recover f(x - i) up to a constant of integration.

The constant of integration arises because integration does not provide a unique solution.

The constant represents an arbitrary additive term that can vary depending on the specific problem or additional constraints.

To determine the constant of integration, we may need additional information or consider specific conditions related to the problem.

It is also important to note that the accuracy of estimating the underlying function f(x - i) depends on the quality and quantity of the observed data points f'(x - i). More data points and precise measurements can lead to a better estimation of the underlying function.

Additionally, the behavior of the function at a specific point can provide valuable insights for determining the constant of integration and refining the estimation of the underlying function.

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Answer:

5x-4

Step-by-step explanation:

On a purchase of $140, if $25 off coupon is applied followed by 35% off coupon, a) the cost will be $74.75, b) the functional representation will be

g°f = 0.65x - 16.25 : x = $140 . If 35% off coupon is applied followed by $25 off coupon, c) the cost will be $66 and   d) functional representation will be  f°g = 0.65x - 25 : x = 140

Here we are given two functions f and g.

f reduces the cost by $25 and g is the function that reduces it by 35%. This means that it will make the amount equivalent to 65% of the original.

Now f will be

f(x) = x - 25

g(x) = 0.65x

a)

The cost before applying the coupons is $140.

Now after applying finction f and reducing 25$ we get

$140 - $25

= $115

Now after applying 35% off coupon, the cost will be 65% of the previous one.

Hence the final cost will be

65/100 X 115

= $74.75

b)

Here we need to use function notation to represent the cost after the two coupons are applied.

Here it will clearly be g°f

Hence it will be

g°f = 0.65(x - 25) : x = $140

or, g°f = 0.65x - 16.25 : x = $140

c)

Here we will first apply the 35% off coupon to get

0.65 X 140

= $91

Now applying the $25 off coupon will give us

$66

d)

Now, here we will see that we will get the function

f°g = 0.65x - 25 : x = 140

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