Can someone help ????:)

Answer:

cyclist will travel 64 kilometres in 4 hours

Step-by-step explanation:

speed of cyclist = 10 miles per hour

given 1 mile is equal to 1.6 kilometres.

1*10 miles will be equal to 1.6*10 kilometres

thus , 10 mile is equal to 16 kilometres

using 16 km in place of 10 miles in 10 miles per hour

we have

speed of cyclist = 16 kilometres per hour

we know that distance = speed * time

speed is 16 kilometres per hour

time 4 hours

thus , distance = 16*4 kilometres= 64 kilometres.

cyclist will travel 64 kilometres in 4 hours.

(Hope this helps can I pls have brainlist (crown)☺️)

Answer:

The total number of students is > 160.

The percent as a part-to-whole ratio is StartFraction 10 Over 100 EndFraction.

There are 1,600 students in the school.

Step-by-step explanation:

got is correct

Answer:

2,3,5 for eg. 2020

Step-by-step explanation:

The pattern is empty the second pail, leaving the first and third pail full and the fourth and sixth pails empty.

Given that, there are 6 pails in a row. The first 3 pails are filled with water.

The easiest way to solve this problem is to empty the second pail, leaving the first and third pail full and the fourth and sixth pails empty. This will create the desired pattern of full, empty, full, empty, full, empty.

Therefore, empty the second pail, leaving the first and third pail full and the fourth and sixth pails empty.

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Answer:

Step-by-step explanation:

circumference= 29.83

2 times 3.14 times radius

area=70.83

3.14 times radius squared

3.  radius

4. Diameter

radius is 4.75

diameter is 9.5

not 100% sure on finding the angle measure. looks about 40 degrees

Answer:

-4.8

Step-by-step explanation:

an integer is a whole number that is not a fraction or decimal.

Answer:

The answer would be D :)

Step-by-step explanation:

Answer:

(-1, -8) is:(x + 7)^2 + (y + 4)^2 = 52

Step-by-step explanation:

i literally just learned this today so here we go:

The equation of a circle with center (h, k) and radius r is given by:

(x - h)^2 + (y - k)^2 = r^2

We are given the center of the circle as (-7, -4), so we can substitute these values for h and k:

(x - (-7))^2 + (y - (-4))^2 = r^2

(x + 7)^2 + (y + 4)^2 = r^2

We also know that the circle contains the point (-1, -8).

We can substitute these values for x and y, and solve for r:

(-1 + 7)^2 + (-8 + 4)^2 = r^2

36 + 16 = r^2

r^2 = 52

Substituting this value of r^2 into the equation for the circle, we get:

(x + 7)^2 + (y + 4)^2 = 52

Therefore, the equation of the circle with center (-7, -4) containing the point (-1, -8) is:(x + 7)^2 + (y + 4)^2 = 52

Answer:

Step-by-step explanation:

NOT 5.

_____________________

Firstly note that the radius of the circle is 13 ( centre to D )

Thus the distance from B to the centre is 13

Thus B → E → centre is a right triangle and distance from centre to E (x) can be calculated using Pythagoras' identity, that is

x² + 12² = 13²

x² + 144 = 169 ( subtract 144 from both sides )

x² = 25 ( take the square root of both sides )

x =  = 5

The distance from the centre to C ( the radius ) is 13, thus

x + EC = 13, that is

5 + EC = 13 ( subtract 5 from both sides )

EC = 8

Answer:

The answer is 8

Step-by-step explanation:

Based on the information given, we know that the two triangles have two pairs of congruent angles. This is sufficient to prove that the two triangles are congruent using the AAS (Angle-Angle-Side) postulate. Therefore, the method I would use to prove the two triangles congruent is **AAS**.

Answer:

y = 8

Step-by-step explanation:

\( \frac{5y}{4} = 10\)

\( \frac{4}{5} \times \frac{5y}{4} = \frac{4}{5} \times 10\)

\( \frac{1}{5} \times 5y = \frac{4}{5} \times 10\)

\(y = \frac{4}{5} \times 10\)

\(y = 4 \times 2\)

\(\boxed{\green{y = 8}}\)

Answer:

y=8

Step-by-step explanation:

We move all terms to the left:

5y/4-(10)=0

We multiply all the terms by the denominator

5y-10*4=0

We add all the numbers together, and all the variables

5y-40=0

We move all terms containing y to the left, all other terms to the right

5y=40

y=40/5

We can find the value of x, by using the property of issoceles triangle:

A isosceles triangle is a triangle that has two sides of equal length.

In the given figure, triangle have two sides of equal length 21, thus the given triangle is issoceles.

Since, the angle opposite to the equal sides are equal,

so, the third angle of the given triangle is x

The sum of all angles in a triangle is equal to 180 degrees.

In the given figure : x, x & 34

So, x = 73º

Answer: D) 73º

Step-by-step explanation:

Given,

-2x + 3y = -9 ------- (eqⁿ 1)

4x - 6y = 2 ----------- (eqⁿ 2 )

now,

multiply eqⁿ 1 by 2

so we got,

-4x + 6y = -18 -------- (eqⁿ 3)

now,

subtract eqⁿ 2 from eqⁿ 3

we got,

-8x = -16

x = -16/-8

x = 2,

so , after putting values in the eqⁿ 2

we got,

4(2) - 6y = 2

8 - 6y = 2

6y = 2 - 8 = 6

y = 6/6

y = 1

x = 2 and y = 1

hope this answer helps you dear...take care!

The cost of the wallpaper per square foot is $4.

To find the cost per square foot of the wallpaper, we first need to calculate the total surface area of the box. A rectangular prism has six faces, and each face is a rectangle.

The front and back faces have dimensions 6 feet by 3 feet, so their combined area is 6 ft * 3 ft * 2 = 36 square feet.

The top and bottom faces have dimensions 5 feet by 3 feet, so their combined area is 5 ft * 3 ft * 2 = 30 square feet.

The left and right faces have dimensions 6 feet by 5 feet, so their combined area is 6 ft * 5 ft * 2 = 60 square feet.

The total surface area of the box is 36 + 30 + 60 = 126 square feet.

Since the cost of the wallpaper is $504, we divide the total cost by the total surface area to find the cost per square foot: $504 / 126 sq ft = $4 per square foot.

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Answer:

a student cored 60 out of 25 in maths exam what is the student

Answer:

34.49 m

Step-by-step explanation:

Use the formula height = \(\frac{v^{2} }{2g}\)

1. Substitute in the values given

26² / 2(9.8)

2. Simplify and solve

676 / 19.6 = 34.49

Answer:

The answer is C: 34 m

Answer:

x=113

Step-by-step explanation:

because 95 + 84 + 68 is 247 360 - 247 = 113

Answer:

Step-by-step explanation:

i am working on the assumption that nobody does all three of them

i got 4 because including the people that do swimming and park, the total number of people that do swimming is 22.

the same logic goes for cycling: including the people that do swimming and visit the national park, the total is 23.

so that means that find how many people do swimming and cycling, we have to add the people doing only swimming, with the people doing both swimming and park and then subtract that answer from 22 which gives you 4

Answer:

Cardinal, Ordinal, and Nominal Numbers

Step-by-step explanation:

Answer:

A Cardinal Number is a number that says how many of something there are, such as one, two, three, four, five. An Ordinal Number is a number that tells the position of something in a list, such as 1st, 2nd, 3rd, 4th, 5th etc

Answer:

\(q = 7\)

Step-by-step explanation:

Given

\(p\ \alpha\ \frac{1}{q}\) --- inverse variation

\(p =2; q = 21\)

Required

Find q when \(p = 6\)

\(p\ \alpha\ \frac{1}{q}\)

This becomes

\(p = \frac{k}{q}\)

Where k is the constant of variation.

Make k the subject

\(k = p * q\)

Substitute \(p =2; q = 21\)

\(k = 2 * 21\)

\(k =42\)

When \(p = 6\), we have:

\(p = \frac{k}{q}\)

\(6 = \frac{42}{q}\\\)

Make q the subject

\(q = \frac{42}{6}\)

\(q = 7\)

The false statement from the stem-and-leaf plot is given as follows:

b. The data for Paul’s group has two modes.

The stem-and-leaf plot lists all the measures in a data-set, with the first number as the key, for example:

4|5 = 45.

The mode of a data-set is the data-set that appears the most times in a data-set.

Hence, for Paul's group, the mode is given as follows:

44.

As it is the only observation that appears the times, hence the data has one mode, and option b gives the false statement.

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The maximum height reached by each stone is 40.5 meters.

The height of each stone above the ocean is given by the function:

h = -2t² + 2t + 40

This is a quadratic function in standard form, with a = -2, b = 2, and c = 40.

The maximum height reached by the stone occurs at the vertex of the parabolic curve described by this function.

The t-coordinate of the vertex is given as:

t = -b / 2a

Substitute the values of a and b,

t = -2 / (2×(-2)) = 0.5

So the maximum height is reached 0.5 seconds after the stone is thrown.

To find the maximum height, substitute the value of t into the function:

h = -2(0.5)² + 2(0.5) + 40 = 40.5 meters

Therefore, the maximum height reached by each stone is 40.5 meters.

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Answer:

Step-by-step explanation:

This equation represents the relationship between the exponential functions y = e^x and y = (10^(x-1)). These two functions are equal to each other for all values of x. This can be shown by taking the natural logarithm of both sides of the equation, which gives us:

ln(e^x) = x-1

In this equation, ln(e^x) is equal to x, since the natural logarithm of an exponential expression with a base of e is the exponent. Therefore, we can simplify the equation by taking the natural logarithm of both sides:

ln(10^(x-1)) = x-1

e^(x-1) = 10^x

The two functions e^x and 10^(x-1) are the same function with different bases, so they follow the same pattern. The fact that these two functions are equal to each other for all values of x can also be shown by graphing the two functions and seeing that they overlap perfectly.

Out of the 400 surveyed students, 327 were either seniors or commuters.

To find the number of students who were either seniors or commuters out of the 400 surveyed students, we need to add the number of seniors and the number of commuters while avoiding double-counting those who fall into both categories.

According to the information given:

There were 262 seniors.

There were 215 commuters.

150 of the seniors were also commuters.

To avoid double-counting, we need to subtract the number of seniors who were also commuters from the total count of seniors and commuters.

Seniors or commuters = Total seniors + Total commuters - Seniors who are also commuters

= 262 + 215 - 150

= 327

Therefore, out of the 400 surveyed students, 327 were either seniors or commuters.

It's important to note that in this calculation, we accounted for the overlap between seniors and commuters (150 students who were both seniors and commuters) to avoid counting them twice.

This ensures an accurate count of the students who fall into either category.

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Given:

Account 1:

Principal, P = $2000

Time, t = 4 years

Rate, r = 3% = 0.03

number of times compounded, n = monthly = 12 months/year

Account 2:

Principal, P = $2200

Time, t = 2 years

Rate, r = 5% = 0.05

number of times compounded, n = daily = 365 days/year

Let's determine the account which will earn more interest.

Apply the compound interest formula:

Where:

P is the Principal

r is the interest rate

n is the number of times the ineterest is compounded per unit time'

t is the time in years

Now, let's find the interest earned in each account.

• ACCOUNT 1:

The interest earned in account 1 is $254.66

• ACCOUNT 2:

The interest earned in account 2 is $231.36

We can see the interest earned in account 1 is greater than the interest earned in account 2.

To find the difference, we have:

$254.66 - $231.36 = $23.30

Therefore, Account 1 earns $23.30 more than Account 2.

ANSWER:

Account 1 earns $23.30 more than Account 2.

Answer:

Hey thats my name!! Anyways sorry I cant help you unless you give the options.

Step-by-step explanation:

Answer:

155 women must be randomly selected.

Step-by-step explanation:

We have that to find our \(\alpha\) level, that is the subtraction of 1 by the confidence interval divided by 2. So:

\(\alpha = \frac{1 - 0.9}{2} = 0.05\)

Now, we have to find z in the Z-table as such z has a p-value of \(1 - \alpha\).

That is z with a pvalue of \(1 - 0.05 = 0.95\), so Z = 1.645.

Now, find the margin of error M as such

\(M = z\frac{\sigma}{\sqrt{n}}\)

In which \(\sigma\) is the standard deviation of the population and n is the size of the sample.

The population standard deviation is known to be 28 lbs.

This means that \(\sigma = 28\)

We want 90% confidence that the sample mean is within 3.7 lbs of the populations mean. How many women must be sampled?

This is n for which M = 3.7. So

\(M = z\frac{\sigma}{\sqrt{n}}\)

\(3.7 = 1.645\frac{28}{\sqrt{n}}\)

\(3.7\sqrt{n} = 1.645*28\)

\(\sqrt{n} = \frac{1.645*28}{3.7}\)

\((\sqrt{n})^2 = (\frac{1.645*28}{3.7})^2\)

\(n = 154.97\)

Rounding up:

155 women must be randomly selected.

In a set of data concerning the preference for Oreos with different kinds of fulling the rating scale as r= 0.69896 The x vanilla rating and x chocolate rating are the right answer

X Y (x-xbar) (x-xbar)^2 (y-ybar) (y-ybar)^2 (x-xbar)*(y-ybar)

4 4 0 0 0.416666667 0.173611111 0

3 2 -1 1 -1.583333333 2.506944444 1.583333333

5 5 1 1 1.416666667 2.006944444 1.416666667

3 4 -1 1 0.416666667 0.173611111 -0.416666667

5 3 1 1 -0.583333333 0.340277778 -0.583333333

5 4 1 1 0.416666667 0.173611111 0.416666667

4 3 0 0 -0.583333333 0.340277778 0

4 4 0 0 0.416666667 0.173611111 0

3 3 -1 1 -0.583333333 0.340277778 0.583333333

5 5 1 1 1.416666667 2.006944444 1.416666667

5 4 1 1 0.416666667 0.173611111 0.416666667

2 2 -2 4 -1.583333333 2.506944444 3.166666667

The correlation coefficient is given by

r =  Σ(x- x bar) (y-ybar) /  Σ\((x - xbar)^{2}\) -  Σ \((y - ybar)^{2}\)

r = 8 / \(\sqrt{12 x 10.9167}\)

r = 0.69896

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The measurement that is closest to the volume of the sphere is given as follows:

1,767.1 in³.

The volume of an sphere of radius r is given by the multiplication of 4π by the radius cubed and divided by 3, hence the equation is presented as follows:

\(V = \frac{4\pi r^3}{3}\)

From the image given at the end of the answer, we have that the diameter is of 15 units, hence the radius of the sphere, which is half the diameter, is given as follows:

r = 0.5 x 15

r = 7.5 units.

Then the volume of the sphere is given as follows:

V = 4/3 x π x 7.5³

V = 1,767.1 in³.

The sphere is given by the image presented at the end of the answer.

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Answer:

c

Step-by-step explanation:

Answer:

1236835728943470

Step-by-step explanation:

Answer:

A.=False

B.=True

C.=False

D.=True

Step-by-step explanation:

The original ration is 2 gallons of water for 4 players.

Each player requires 1/2 gallon of water.

To get the amount of water needed multiply 1/2 by the amount of players.

1*(1/2) does not equal 1

2*(1/2) equals 1

10*(1/2) does not equal 4

30*(1/2) equals 15

Answer:

$21.75

Step-by-step explanation:

It says he spent his earnings on lunch.