Students were discussing what they had learned about minerals. They were debating the similarities of cleavage and fracture. Which group’s statement correctly describes how these two properties are alike?

A. Cleavage and fracture are both used to tell if an object is a mineral.

B. Both of these are properties that can help identify the color and hardness of minerals.

C. These two properties describe how minerals can break.

D. Neither of these properties are as useful as color in identifying mineral types.

If it starts at 7 and there are 8 lines going to the number 8, then each line represents 1/8 of the distance between 7 and 8, or 1/8 of a unit. If it stops at the third line, then it has traveled 3/8 of a unit. Therefore, the number it represents is 7 + 3/8, or 7.375.

Answer: 0.06 and 1.39 B 0.06 and 13.9 C 0.6 and 1.39 D 0.6 and 13.9.

Step-by-step explanation: Which two factors would give a product of 8.34? 0.06 and 1.39 B 0.06 and 13.9 C 0.6 and 1.39 D 0.6 and 13.9.

Answer:

4

Step-by-step explanation:

The mean is the average.

1. Add up all the numbers

8+2+5+5+4+2+2= 28

2. Divide by the total numbers you have

28/7= 4

Answer: 4

Step-by-step explanation: 4 is the answer because to find the mean of a set of numbers first, you have to add all the numers up and then divide by how many numbers there are in the set.

Answer:

Step-by-step explanation:

To find the number of bananas, we need to determine the proportion of bananas in the total number of fruits based on the given ratio.

Let's assume that the ratio of oranges, apples, and bananas can be represented by 8x, 5x, and 2x, respectively, where x is a common multiplier.

The sum of the parts in the ratio is 8x + 5x + 2x = 15x.

We know that the total number of fruits is 120. Therefore, we can set up the following equation:

15x = 120

To solve for x, we divide both sides of the equation by 15:

x = 120 / 15

x = 8

Now that we know the value of x, we can find the number of bananas by multiplying it by the corresponding part of the ratio:

Number of bananas = 2x = 2 * 8 = 16

So, there are 16 bananas in total.

We can add all the parts to the ratio and get 15. Out of 15 parts, 2 are bananas. Now we can calculate how many fruits are in one part. One fifteenth of 120 is 8, so there are 8 fruits in one part. 2 parts are bananas, so multiplying 8 with 2 gives us our answer, 16.

Answer:

the correct answer is

D the student solved the problem. correctly

Answer:  Choice C

The student solved the problem incorrectly. The student should add 12.7 to both sides of the equation to isolate the variable, y.

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Explanation:

We add 12.7 to both sides to undo the "minus 12.7"

We apply the inverse operation to whatever is happening to x.

As another example, solving x-2 = 10 leads to x = 12 after adding 2 to both sides to undo the "minus 2".

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The student's steps should look like this

y - 12.7 = 32.75

y-12.7+12.7 = 32.75+12.7

y = 45.45

Notice on the left side of the second step, we have the -12.7+12.7 become 0 and go away.

Answer:b is the answer

Answer:

A B and D

Step-by-step explanation:

Answer:

3.65 pounds

Step-by-step explanation:

6 + 2 1/2 (2.5) pounds of oranges = 8.5

4 3/4 = 4.75

8.5 - 4.75 = 3.65

Answer:

the percent change would be 40 percent

Step-by-step explanation:

think of 10 as a base so like 100 ok and you know if 50 of that is 50 percent 40 would just be forty percent

Answer:

what is the question? I do not get what the question is.

Answer:

\(-3x^2y-xy^2-7xy-3\)

Step-by-step explanation:

\((4xy^2-3x^2y-5xy-6)+(-5xy^2-2xy+3)\)

\(4xy^2-3x^2y-5xy-6-5xy^2-2xy+3\)

\(-3x^2y-xy^2-7xy-3\)

Answer:

C

Step-by-step explanation:

Because both have ratios of marker/price

Answer:

there are infinite solutions! for any value of x and y, as long as it equals to 4, it is a solution

for example

if x was 1.119248129812, as long as -11.19248129812 and 18y add to 4, it is a solution

Step-by-step explanation:

Answer:

its the last choice

3-n=14

Step-by-step explanation:

3 less than a number is 14 tells u that u have to subtract 3 by a number which is represented with the letter N and that equals 14

(I'm in k12 too)

Hope this helps!

Answer:

B.

Step-by-step explanation:

Yes that person is correct

Step-by-step explanation:

Finding the area of the canvas:

The canvas has sides measuring 3x - 3 and 4x + 1 inches. To find the area, we multiply the lengths of the sides. So, the area of the canvas is given by:

Area = (3x - 3) * (4x + 1)

= 12x^2 + x - 3

Therefore, the correct equation for the area of the canvas is A = 12x^2 + x - 3.

Finding the area of the circle created by the paint:

The rate at which the paint is spreading on the canvas is given by the function r(t) = 4t, where t represents time in minutes and r represents how far the paint has spread. The area of the circle created by the paint can be expressed as A[r(t)] = πr^2, where r(t) is the distance the paint has spread at time t.

Substituting the value of r(t) = 4t into the formula, we get:

A[r(t)] = π(4t)^2

= 16πt^2

Therefore, the area of the circle created by the paint is 16πt^2.

Determining if the circle will be at least 1300 in² in 5 minutes:

To check if the area of the circle will be at least 1300 in² in 5 minutes, we substitute t = 5 into the equation for the area:

A[r(5)] = 16π(5)^2

= 400π

Approximating the value of 400π, we get approximately, 1256.64.

Since 1256.64 is less than 1300, we can conclude that the area of the circle created by the paint after 5 minutes will not be at least 1300 in².

Answer:

these are equal

Step-by-step explanation:

17/25 = 68 / 100 = 0.68

Answer: they are equal.

Step-by-step explanation:

i just converted 17/25 into a decimal, and it equals 0.68. i did the same thing for the fraction, except i converted it into a decimal. it equaled 17/25. so, they are equal.

Answer:

Step-by-step explanation:

form. Meaning you need make both fractions improper

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

\(\blue\textsf{\textbf{\underline{\underline{Question:-}}}}\)

What is the surface area of the cylinder with height 2 yd and radius 7 yd?

\(\blue\textsf{\textbf{\underline{\underline{Answer and how to Solve:-}}}}\)

\(\textsf{Formula for Surface Area (SA) of a Cylinder:-}\)

\(\dashrightarrow\bigstar{\boxed{\bf{A=2\pi rh+2\pi r^2}}}\dashleftarrow\)

Where

\(\bold{A=Area}\)

\(\bf{\pi =pi (3.14...)}\)

\(\bold{r=radius}\)

\(\bold{h=height}\)

Given:-

\(\bold{r=7}\)

\(\bold{h=2}\)

Solving for S.A.:-

\(\bold{SA=2\pi (7)(2)+2\pi (7)^2}\)

\(\bold{SA=2\pi (14)+2\pi (49)}\)

On further simplification,

\(\bold{SA=28\pi +98\pi }\)

\(\bold{SA=126\pi }\)

And finally,

\(\dashrightarrow\bigstar\boxed{\bold{SA=395.841\:yd}}\dashleftarrow\)

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

Answer:

954.814

Step-by-step explanation:

Answer:

I believe it's A.

Step-by-step explanation:

The formula for the perimeter of a rectangle: 2(l + w)

Since we have not found x, you would assume it hasn't been doubled yet by the 2. Since the width = 14, it is doubled to 28.

Next, we know from looking at the formula that l and w are added together, so inside the brackets is an addition problem. ( + 28)

Since we know that l = x and l has to be doubled, it will be = (2x +)

If we combine those two equations together it is =

2x + 28 = 48

Answer:

Mean = 33.7

Median = 34.5

Mode = 34

Range = 33

After adding 26....

mean decreases by 0.7

median decreases by 0.5

mode is 34

range is 33

Step-by-step explanation:

mean = sum of all the data values/number of data values

= (18 + 19 + 20  + 34 + 34 + 35 + 37 + 42 + 47 + 51)/10
= 337/10
= 33.7

To find median arrange the values in increasing order, find the mid value

If the number of data points is even, find the average of the mid 2 data values

Arranging data values we get:
18, 19, 20, 34, 34, 35, 37, 42, 47, 51

Since there are 10 data values, take the average of the middle two:
(34 + 35)/2 = 34.5

The mode is the value that occurs most often. We see that there are two instances of 34 whereas the other values appear only once

Mode = 34

The range is highest - lowest = 51 - 18 = 33

After we add 26, we get the following data set arranged

18, 19, 20, 26, 34, 34, 35, 37, 42, 47, 51

we can calculate the stats using the same technique as above

We get the following values

mean = )(18 + 19 + 20 + 26 + 34 + 34 + 35 + 37 + 42 + 47 + 51)/11
= 33  

median = 34

mode = 34

range = 51-18 = 33

To find the decrease in mean and median subtract from the first set of values

Answer:2.16

Step-by-step explanation:

Answer:

6/5

Step-by-step explanation:

Answer:

Step-by-step explanation:

a) 0+4-4=0

b) 0-4+4=0

They are similar because they both end up in the same number and you are adding/subracting the same number. (They both cancel each other)

They are different because it goes in the negative value in the number line and when subracting they represent different values.

Answer:

A and b

Step-by-step explanation:

Make sense to me, sorry if I am wrong

Answer:

200 animals

Step-by-step explanation:

9/100 = 9% or 0.09

18=0.09x

x=200

or you can use proportions:

18/x=9/100

x=200

Answer:

200 animals

Step-by-step explanation:

Answer:

it's Zac Efron for sure, Leonardo DiCaprio is just not the same...

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1. In the first problem, we need to subtract 1 from 9 since there is an addition:

9 – 1 = 8

Next, divide 8 by 2, and we get:

8 ÷ 2 = 4

This means that x = 4

Finally, check the answer by:

2(4) + 1 = 9

2. In the second problem, we need to subtract 3 from 19 since there is an addition:

19 – 3 = 16

Next, divide 16 by 4, and we get:

16 ÷ 4 = 4

This means that x = 4

Finally, check the answer by:

4(4) + 3 = 19

3. In the third problem, we need to add 2 with 7 since there is subtraction:

2 + 7 = 9

Next, divide 9 by 3, and we get:

9 ÷ 3 = 3

This means that x = 3

Finally, check the answer by:

3(3) – 2 = 7

Hope this helps :)

Answer:

Around 56%

Step-by-step explanation:

1.25/2.25 = 0.55555..

Answer:

Roughly 55%

Step-by-step explanation:

1.25 = 5/4

2.25 = 9/4

5/4 / 9/4 = 5/4 * 4/9

5/4 * 4/9 = 5/9

5/9 = Roughly 55%

Answer: y = 3x + 2

Step-by-step explanation:

\(\dfrac{x-x_{1} }{x_{2} -x_{1} } =\dfrac{y-y_{1} }{y_{2} -y_{1} }\\\)

Let's choose two arbitrary points on the graph.

For example, let these be points with coordinates (1, 5) and (2, 8).

Substitute the coordinates of these points into the above formula and derive the equation of a straight line.

\(\dfrac{x-1}{2-1} =\dfrac{y-5}{8-5}\\\\\dfrac{x-1}{1} =\dfrac{y-5}{3}\\\\3(x-1)=y-5\\3x-3=y-5\\y=3x-3+5\\y=3x+2\)

Answer:

Step-by-step explanation: 2h+10=76

2h=76-10

2h=66

h=66/2

h=33