HELP! Will give Brainliest! Using dimensional analysis, convert 293 cm into m. (1 m= 100 cm)
(and this is also a Chemistry Question)
I get how to work out the other question, but I'm confused on this one

Answers

Answer 1
To convert from one unit to another unit, a conversion factor is needed. This is a value that would relate the original unit to the desired unit. We either multiply or divide this value depending on what is being asked in the problem. For this problem, the conversion factor would be 1/100 which means that in 1 m there is 100 cm. We do the conversion as follows:

293 cm ( 1 m / 100 cm ) = 2.93 m 

Related Questions

You make both rocking chairs and bar stools. You charge $100 for every rocking chair and $40 for every bar stool. Which expression represents your income if you sell r rocking chairs and b bar stools?

Answers

100r+40b=income
You have to multiply $100 per rocking chair and add it to $40 per bar stool to get our income.

Answer:

The answer is [tex]Income=100*r+40*b[/tex]

Step-by-step explanation:

In this case we have to construct an expression that describe the income of selling the rocking chairs ($100 each - r) and the bar stool ($40 each - b), so the total income will depend on the addition of this two variables multiplied by its individual price, this is:

[tex]Income=100*r+40*b[/tex]

The answer is [tex]Income=100*r+40*b[/tex]

What is the quotient and remainder when x2 + x − 12 is divided by x − 2?

Answers

The answer to this item can be determined through making use of the concept of Remainder Theorem. With that, we are going to substitute the value of the factor to the given original equation. Whatever is the result of the operation through the use of the value of the factor is the remainder.

Factor: x - 2;  

We equate this factor to zero to be able to find the value of x. That is,

x - 2= 0;

 x = 2

Substitute 2 to the x's of the quadratic equation.
     R = (2)² + 2 - 12 = -6

ANSWER: Remainder = -6

for f(x)= 1/x^2-3 substitute 3 for x in the function to solve for f(3)

Answers

Final answer:

The value of the function f(x)= 1/x²-3 when x is 3, denoted as f(3), is -8/9.

Explanation:

To solve for f(3) in the function "f(x)= 1/x²-3", you should substitute x = 3 into the function. By doing so, we have:

f(3) = 1/(3²) - 3 = 1/9 - 3 = -8/9

Therefore, f(3) for this function is -8/9.

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the ratio of boys to girls are 8 to 7. if there was a total of 195 students, how many boys and girls are there?

Answers

Add the values of the ratio.

8+7= 15

Boys: 195/15= 13(8)=104

Girls: 195/15= 13(7)= 91

There are 104 boys and 91 girls. Hope this helps!

Describe how to determine if two polygons have the same size and shape.

Answers

You can identify similar polygon by comparing their corresponding angles and sides. ( if they are the same the ratio of the lengths is the scale factor. Also check if their sides are proportional.)

Answer:

Prove that their corresponsing sides are all congruents

Step-by-step explanation:

Remember that if two figures have corresponding angles congruent, but proportional sides, then those figures are similar.

However, if those figures have corresponding angles and sides congruent, then they are congruent.

Therefore, to determine if two polygons are congruent, that is, in size and shape, we need to prove that their corresponsing sides are all congruents, that way, we'll be able to demonstrate their absolute congruence.

what is .00463 in fraction form

Answers

We have a decimal system.

After the decimal point starts the negative powers of ten in those columns...

. 10^-1, 10^-2, 10^-3, 10^-4, 10^-5

1/10s, 1/100s, 1/1000s, 1/10,000s, 1/100,000s

so .00463 is equal to 

463/100000

The sine function is an odd function

Answers

Sure the sin function is an odd function because sin (-Ф) = - sin (Ф)
Example: sin (- 30°) = - sin (30°) = -1/2

Answer:

The given statement is true.

Step-by-step explanation:

We have been given a statement and we are supposed to determine whether our given statement is even or odd.

Statement: The sine function is an odd function.

We know that sine is symmetric about origin and [tex]\text{sin}(-x)=-\text{sin}(x)[/tex]. Therefore, sine is an odd function and our given statement is true.

What is 180 as product of prime factors and 180 as a Square root?

Answers

180 = 2*90
90 = 2*45
45 = 3*15
15 = 3*5
The prime factors are 2, 2, 3, 3, 5

Alternatively, you can draw up a factor tree like what you see in the attached image. The prime numbers are in the red boxes.

Either way, the prime factorization is 
180 = 2*2*3*3*5
which can be written as
180 = 2^2*3^2*5

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

As for your second question, are you looking to simplify the square root of 180? If so, then follow these steps

sqrt(180) = sqrt(2*2*3*3*5)
sqrt(180) = sqrt(2^2*3^2*5)
sqrt(180) = sqrt((2*3)^2*5)
sqrt(180) = sqrt((2*3)^2)*sqrt(5)
sqrt(180) = 2*3*sqrt(5)
sqrt(180) = 6*sqrt(5)

sqrt stands for "square root"


1. What is the length of the 2nd base of a trapezoid if the length of one base is 24 and the length of the midsegment is 19? Show your work.



2. What is the sum of the measures of the exterior angles in a heptagon? Explain.



3. Find the measure of each interior angle and each exterior angles of the following regular polygons. Show your work.
a. Decagon

b. Pentagon

c. Dodecagon

d. 16-gon

e. 25-gon

Answers

3. Check the first picture.

let

"a" be the number of angles (or sides)
"t" be the number of triangular regions, that the diagonals drawn from one angle divide the regular polygon into.

it is clear that for a polygon of n-sides, there are n-2 triangular regions, each of which has a total measure of angles equal to 180°.

so the sum of the interior angles of a n-gon is (n-2)180°.

In a regular polygon, the measure of each interior angle is equal, so:

the measure of each interior angle of a regular n-gon is:  [tex] \frac{(n-2)180}{n} [/tex]

apply the formula to each angle.

a. n=10,   [tex]\frac{(n-2)180}{n}=\frac{(10-2)180}{10}[/tex]=(8*180)/10=144
b. n=5,   [tex]\frac{(n-2)180}{n}=\frac{(5-2)180}{5}[/tex]=(3*180)/5=108
c. n=12,   [tex]\frac{(n-2)180}{n}=\frac{(12-2)180}{12}[/tex]=(10*180)/12=150
d. n=16,   [tex]\frac{(n-2)180}{n}=\frac{(16-2)180}{16}[/tex]=(14*180)/16=157.5
e. n=25,   [tex]\frac{(n-2)180}{n}=\frac{(25-2)180}{25}[/tex]=(23*180)/25=165.5

2. 

the sum of the interior angles of a heptagon is (7-2)180°=5*180°=900°

let the measures of the interior angles be a,b,c,d,e,f and g.

so a+b+c+d+e+f+g=900°

the exterior angle measures are 180-a, 180-b, 180-c, 180-d, 180-e, 180-f, 180-g, 

so the sum of the measure angles of the exterior angles is 

(180°-a)+(180°-b) +(180°-c)+(180°-d)+(180°-e)+(180°-f)+(180°-g)
= 180°*7-(a+b+c+d+e+f+g)=1260°-900°=360°.

In fact, the sum of the measures of the exterior angles of any polygon is 360°.

1. Let the length of the second base be x

then 
[tex] \frac{x+24}{2}=19 [/tex]
x+24=38
x=38-24=14 units

Which best explains if quadrilateral WXYZ can be a parallelogram?

WXYZ can be a parallelogram with one pair of sides measuring 15 mm and the other pair measuring 9 mm.
WXYZ can be a parallelogram with one pair of sides measuring 15 mm and the other pair measuring 7 mm.
WXYZ cannot be a parallelogram because there are three different values for x when each expression is set equal to 15.
WXYZ cannot be a parallelogram because the value of x that makes one pair of sides congruent does not make the other pair of sides congruent.

Answers

Your answer is
"WXYZ can be a parallelogram with one pair of sides measuring 15mm and the other pair measuring 9mm"

To find this, you first have to solve for x. Assuming WXYZ is a parallelogram, then the side (x + 8) must equal 15, which means we can subtract 8 and get x as 7.

Now we substitute 7 into the other side's, (7 + 2) = 9mm, and (7 × 2) - 5 = 14 - 5 = 9mm.

I hope this helps!

If quadrilateral WXYZ is a parallelogram, the opposite sides will be equal, in length from which the value of x will satisfy the two equations.

Response:

WXYZ can be a parallelogram with one pair of sides measuring 15 mm and the other pair measuring 9 mm.

How can the option that best indicates if WXYZ can be a parallelogram be obtained?

Properties of a parallelogram

The length of the opposite sides of a parallelogram are equal, which gives;

2·x - 5 = x + 2

2·x - x = 2 + 5

x = 7

Similarly, we have;

x + 8 = 15

x = 15 - 8 = 7

The lengths of the opposite sides are therefore;

2·x - 5 = 2 × 7 - 5 = 9 and x + 8 = 15

The option that indicates if WXYZ is a parallelogram is therefore;

WXYZ can be a parallelogram with one pair of sides measuring 15 mm and the other pair measuring 9 mm.

Learn more about parallelograms here;

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Marion is observing the velocity of a cyclist at different times. After two hours, the velocity of the cyclist is 18 km/h. After four hours, the velocity of the cyclist is 4 km/h. Part A: Write an equation in two variables in the standard form that can be used to describe the velocity of the cyclist at different times. Show your work and define the variables used. (5 points) Part B: How can you graph the equations obtained in Part A for the first 8 hours? (5 points)

Answers

Assume that the velocity is a linear function of time, so that
v(t) = a + bt
where
v = velocity (km/h) at time t (hours),
a and b are constants.

When t = 2 hours, v = 18 km/h, therefore
a + 2b = 18         (1)

When t = 4 hours,  v = 4 km/h, therefore
a + 4b = 4          (2)

Subtract (1) from (2) to obtain
a + 4b - (a + 2b) = 4 - 18
2b = -14
  b = -7
From (1), obtain
a = 18 - 2b = 18 - 2*(-7) = 32

Part A.
The equation is
v = 32 - 7t

Part B
To graph the equation for the first 8 hours, create a table as shown below.
t, hours:   0    1    2   3   4   5    6    7    8
v, km/h:  32 25  18  11   4  -3  -10 -17 -24

We can see from the table that the velocity becomes negative between t=4 and t=5. Therefore, we shall change all negative velocities to zero, and assume that the cyclist comes to rest.
TNote that when the velocity is zero,
 32 - 7t = 0
 7t = 32
t = 4.57

The new table becomes
t:    0   1    2   3   4  4.57  5   6   7   8
v: 32 25  18  11   4   0      0   0   0   0
 
The graph is shown below.

Given the following geometric sequence, find the common ratio. {0.1,-0.9,8.1,...}

Answers

The common ratio is the constant found when you divide any term in a geometric sequence by the term preceding it.  

-0.9/0.1=8.1/-0.9=-9

The common ration is negative 9.

Answer:

Common ratio, r = -9

Step-by-step explanation:

If we have geometric progression, the common ratio is the ratio of (n+1)th term and nth term.

Here geometric progression is

       0.1,-0.9,8.1,.................

Common ratio

           [tex]r=\frac{-0.9}{0.1}=-9\\\\r=\frac{8.1}{-0.9}=-9[/tex]

Common ratio, r = -9

     

Given the arithmetic sequence an = −1 + 7(n − 1), what is the domain for n?

All integers
All integers where n ≥ 0
All integers where n ≥ 1
All integers where n > 1

Answers

Final answer:

The domain for n in the arithmetic sequence is all integers where n ≥ 1.

Explanation:

The domain for n in the arithmetic sequence is all integers where n ≥ 1. In this sequence, the value of n represents the position of the term in the sequence. Since the first term of the sequence is represented by n=1, n can't be less than 1 because there is no zeroth term in the sequence. Therefore, the domain for n is all integers where n ≥ 1.

A 7.5 kg block is placed on a table. If it's bottom surface area is 0.6m2, how much pressure does the block exert on the tabletop?

Answers

We know that a 7.5 kg block is placed on a table and that it`s bottom surface area is 0.6 m².
Pressure = Force / Area
Force = Mass * Gravity = 7.5 kg * 9.81 m/s² = 73.575 N
P = 73.575 N / 0.6 m² = 122.625  N/m² = 122.625 Pa
Answer: The block exerts the pressure of 122.625 N/m² or 122.625 Pa.

Final answer:

The pressure exerted by a 7.5 kg block on a tabletop is calculated as the force due to its weight divided by the surface area. This results in a pressure of 122.5 Pascals (Pa).

Explanation:

The pressure exerted by an object on a surface is calculated by dividing the force it applies, which is its weight (a result of gravity), by the area over which the force is distributed. In this case, to find the pressure exerted by a 7.5 kg block on a tabletop with a bottom surface area of 0.6m2, we use the formula for pressure (P), which is P = Force (F) / Area (A).

To calculate the force, we need to know that the weight of the block is the product of its mass (m) and the acceleration due to gravity (g), where g is approximately 9.8 m/s2. So, the weight (F) is:

F = m × g = 7.5 kg × 9.8 m/s2 = 73.5 N

To calculate pressure (P), we then divide the force by the area:

P = F / A = 73.5 N / 0.6 m2 = 122.5 Pa

Therefore, the pressure exerted by the block on the tabletop is 122.5 Pascals (Pa).

Find the congruence transformation that maps ∆ABC to ∆A’B’C’. Explain your reasoning

Answers

To flip any of the points to map up correctly to the other points, you would have to do a reflection over the y-axis. The reasoning for this is because you cannot dilate your shape because it won't map over correctly. A translation will not work, mainly because the shape still needs to flip. A rotation will also not work because when you rotate it, the shape will still not map over your new one. 

-So your answer to this question would be that only a Reflection over the y-axis will allow the two shapes to map over each other correctly.

Please help!!! Geometry.

Answers

check the picture below.

make sure your calculator is in Degree mode.

the question is.......... ASAP

Answers

C, proof from CB being 5x4 to get 20 from FE, use the same method on AC to get 3x4 to get 12 :)

(05.01)
Which statement best explains if the graph correctly represents the proportional relationship y = −2x?
No, the points shown would not be part of y = −2x
No, proportions cannot be represented on a graph
Yes, all proportions can be shown on a graph of this line
Yes, the points shown on the line would be part of y = −2x

Answers

The slope is (y2-y1)/(x2-x1)=(2-4)/(-1--2)=-2/1=-2

So yes, the points shown on the line would be a part of y=-2x

The best statement which is true for the graph y=-2x is that Yes, the points shown on the line would be a part of y=-2x.

What is line?

A line is collection of various points on a surface which together joins two points on a surface. Equation of a line looks like y=a +b x where b is the slope of line.

How to make graph?

We have been given an equation y=-2x and we have to find the graph of equation and for that we need to find points and for this we have to put the values of x which gives the values of y.

At x=0 ,y=0

At x=1 ,y=-2*1=-2

At x=2  ,y=-2*2=-4

At x=-1 ,y=-2*-1=2

Coordinates will be (0,0),(1,-2),(2,-4),(-1,2)

If we find these points on this line then will surely be able to find these points.

Hence the statement which is true is that Yes, the points shown on the line would be part of y = −2x.

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people who are physically active should increase the daily amount of water they drink to 2/3 ounces per pound of body weight. how much should a 245 pound football player drink per day?

A 1,470 ounces of water
B 163 ounces of water
C 163 1/3 ounces of water
D no water, football players only drink gatorade

Answers

245*2/3=

245*2 =490/3 =163.33 = 163 1/3 ounces

Which number is irrational, an integer, and a real number?
A)there are no such numbers
B) 0
C) sq root of 4
D) -4/2

Answers

A)there are no such numbers 

Integers are rational numbers, so there can't be a number that is irrational and integer at the same time.

Answer:

Option A is the correct answer.

Step-by-step explanation:

An Irrational Number is a real number that cannot be written as a simple fraction.  All the integers can be written as a simple fraction. So an integer is not an  Irrational Number. So there is no number is irrational, an integer, and a real number.

Option A is the correct answer.

A​ ​piece​ ​of​ ​rope​ ​94.2​ ​inches​ ​long​ ​will​ ​enclose​ ​a​ ​circular​ ​child’s​ ​wading pool. What​ ​is​ ​the​ ​diameter​ ​of​ ​the​ ​pool?

Answers

The circumference of a circle is pi times D. So, 94.2/pi = 29.98 or about 30 in

Find the volume of the cylinder shown. Use 3.14 for pi. Round your answer to the nearest hundredth.

Answers

Answer: Volume of cylinder is 1846.32 cubic yd.

Step-by-step explanation:

Since we have given that

Height of a cylinder = 12 yard

Radius of a cylinder = 7 yard

As we know the formula of "Volume of cylinder":

[tex]Volume=\pi r^2h\\\\Volume=3.14\times 7\times 7\times 12\\\\Volume=1846.32\ yd^3[/tex]

Hence, Volume of cylinder is 1846.32 cubic yd.

Answer:

1846.32 cubic yards

Step-by-step explanation:

What is the slope of the line whose equation is 3x-5y=10?

Answers

get into y=mx+b form
m=slope


3x-5y=10
minus 3x from both sides
-5y=-3x+10
divide both sides by -5
y=-3/-5x+10/-5
y=3/5x-2
the slope is 3/5

Ten children are to be divided into an a team and a b team of 5 each. the a team will play in one league and the b team in another. how many different divisions are possible?

Answers

The number of combinations for picking a number of items from a given selection is found using this formula: nCr = n!/(n - r)!r! where:
n = size of the selection
r = number of items being picked
In the case of the question, there is a selection of 10 people of which 5 will be chosen to be in team a so:
n = 10
r = 5
The number of combinations is 10C5 = 252
This means there are 252 possible different a teams that could be made from the 10 people.
Team b will be another of the 252 combinations.
Note: scientific calculators, e.g. Casio ones, have a button for the nCr formula.

ILL GIVE BRAINLIEST !!!1 A student writes an incorrect step while checking if the sum of the measures of the two remote interior angles of triangle ABC below is equal to the measure of the exterior angle.


Step 1: m∠x + m∠y + m∠z = 180 degrees (sum of angles of a triangle)
Step 2: m∠w − m∠z = 90 degrees (corresponding angles)
Step 3: Therefore, m∠x + m∠y + m∠z = m∠w + m∠z
Step 4: So, m∠x + m∠y = m∠w

In which step did the student first make a mistake and how can it be corrected?

Step 1; it should be m∠x + m∠y + m∠z = 180 degrees (sum of corresponding angles)

Step 2; it should be m∠w + m∠z = 180 degrees (supplementary angles)

Step 1; it should be m∠x + m∠y + m∠z = 90 degrees (corresponding angles)

Step 2; it should be m∠w + m∠z = 90 degrees (alternate exterior angle)

Answers

Correct answer is step 2.
step 2 : should be < w + < z = 180

Kyla makes a triangular school pennant. The area of the triangle is 180 square inches. The base of the pennant is z inches long. The height is 6 inches longer than twice the base length. What is the height of the pennant? Recall the formula A = 1/2bh.

A.) 12 inches

B.) 15 inches

C.) 30 inches

D.) 36 inches

Answers

A = 1/2 * b * h
A = 180
b = z
h = 2z + 6

180 = 1/2 * z * 2z + 6
180 = (2z^2 + 6z)/ 2
180 = z^2 + 3z)
z^2 + 3z - 180 = 0
(z - 12)(z + 15) = 0

z - 12 = 0
z = 12

z + 15 = 0
z = -15....not this one because it is negative

h = 2z + 6
h = 2(12) + 6
h = 24 + 6
h = 30 inches <====
The formula for area of a triangle = BH / 2
In which the area = 180 square inches.

You can therefore make this formula:

180 = [2(2z+6)+6](2z+6) / 2

Now solve for z.

360 = [2(2z+6)+6](2z+6)
360 = (4z+12+6)(2z+6)
360 = (4z+18)(2z+6)
360 = 8z^2 + 24z + 36z + 108
360 = 8z^2 + 60z + 108
    0 = 8z^2 + 60z - 252

Now we will use quadratic formula to get z = 3, -21/2

Substitute in now

2(2z+6) + 6
2(2(3)+6) + 6
2(6+6) + 6
2(12) + 6
24 + 6
30

or... (false)

2[2(-10.5)+6]+6
2(-21+6)+6
2(-15) + 6
-30 + 6
-24

Therefore, the height is 30 inches. I made some work errors but it is still true because of the property ab = ba

Identify the factors of x2 − 4x − 12. (1 point)

(x + 4)(x − 3)

(x − 4)(x + 3)

(x − 2)(x + 6)

(x + 2)(x − 6)

Answers

x² - 4x - 12 = 
x² + 2x - 6x - 12 =
x(x + 2) - 6(x + 2) = 
(x + 2)(x - 6)

Answer:

D. [tex](x-6)(x+2)[/tex]

Step-by-step explanation:

We have been given a polynomial [tex]x^2-4x-12[/tex]. We are asked to find the factors of our given polynomial.

We will use splitting the middle term format of factoring quadratic polynomial.

We need two numbers, whose product is [tex]-12[/tex] and whose sum is [tex]-4[/tex]. Such two numbers are  [tex]-6\text{ and }2[/tex].

[tex]x^2-6x+2x-12[/tex]

[tex](x^2-6x)+(2x-12)[/tex]

Factor out GCF of each group:

[tex]x(x-6)+2(x-6)[/tex]

[tex](x-6)(x+2)[/tex]

Therefore, factors of our given expression are [tex](x-6)(x+2)[/tex] and option D is the correct choice.

Can anyone help!? Points are high!

Answers

total was 49.10

mileage would be 49.10 = 2.10x +5.00

 total miles =

49.10 = 2.10 +5.00

44.10 = 2.10x

x = 44.10/2.10 = 21 miles

In triangle ABC, m∠A=55 triangle ABC, m∠A=55°, c=11c=11, and m∠B=19m∠B=19°. Find the perimeter of the triangle

Answers

First, we illustrate the problem as shown in the picture. By convention, we denote capital letters as angles and the small letters as opposite sides to those respective angles. We can find the perimeter of the triangle by adding all it sides. So, the next step is to find sides a and b.

Since a triangle has a total of 180° in interior angles, then angle C can be solved by

180° = A + B + C
C = 180° - 55° - 19°
C = 106°

Next, we use the Law of Sines. This law can be used in any type of triangle. This law states that there is a fixed ratio of side to sine of the opposite angle. In equation, that would be written as

a/sin A = b/sin B = c/sin C

Since, we know already side c and angle C, the fixed ratio is then,

11/sin 106° = 11.443

The last step is to apply ratio and proportion:

11.433 = a/sin 55°
a = 9.37 units

11.433 = b/sin 19°
b = 3.73 units

Thus, the perimeter of the triangle is 
P = a + b + c
P = 9.37 +3.73 +11
P = 24.1 units

A cube has side lengths of 8 inches. What is the volume of the cube

Answers

Answer:
V=a³
V=512 in³
a=Edge
The answer is A equal 8
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