water has the chemical formula H20. Which statement correctly describes water? A: water is not a pure substance, but is an element B: Water is a pure substance and an element. C: Water is a pure substance and a compound. D: Water is not a pure substance, but is a compound.

Answer:

the second graph which shows parallel lines

Step-by-step explanation:

Answer:

-5x-4y=-8

-5x=4y-8

x/-5=4y-8÷-5

Answer:

Answer:81

Step bye step

Answer:

Hi! The correct answer is x= -3 ,-5!

Step-by-step explanation:

~Factor and set each factor equal to 0~

Answer:

(X+2) (X+6)=0

Step-by-step explanation:

X2+8x+12=0

or, X2+(2+6)X+12=0

or, X2+2x+6x+12=0

or, X(X+2) +6(X+2) =0

or, (X+2)(X+6)=0

Answer:

The coordinates of the point Q is (4, 1)

Step-by-step explanation:

The given parameters are;

The directed line segment  extends from R(-2, 4), to S(18, -6)

The ratio in which the point Q partitions the directed line segment = 3:7

Therefore, the proportions of the R to Q = 3/(3 + 7) = 3/10 the length of RS

Which gives;

(-2 + (18-(-2))×3/10,  4 +(-6 -4)×3/10) which is (4, 1)

The coordinates of the point Q = (4, 1)

We check the length from R to S is given by the relation for length as follows

\(l =\sqrt{\left (y_{2}-y_{1} \right )^{2}+\left (x_{2}-x_{1} \right )^{2}}\)

Where;

R(-2, 4) = (x₁, y₁)

S(18, -6) = (x₂, y₂)

Length of segment RS  = 22.36

length from R to Q = 6.7086

We check RQ/RS = 6.7082/22.36 = 0.3

Also QS/RS = (22.36 - 6.7082)/22.36 = 0.6999≈ 0.7

The coordinates of the point Q = (4, 1).

Answer:

y = 7x^2  + 42x + 64

Step-by-step explanation:

... i know standard form, you just distribute the exponent to the parenthesis amounts and put it in order, hope it helps

Answer:

y = 7 x ^2 + 42 x + 64

Step-by-step explanation:

1. The inequality when the distance between 2 and 5 times a number is no less than 8 is 1. |5x−2|≥8

2. The correct option is A. Trey is not necessarily correct. He will need to ensure that the compass width remains the same for each arc drawn from P and R.

Inequalities are created through the connection of two expressions. It should be noted that the expressions in an inequality aren't always equal. Inequalities implies that the expressions are not equal. They are denoted by the symbols ≥  <  >   ≤.

The distance between 2 and 5 times a number is no less than 8.

Let the number be x

This will be |5x−2|≥8. The correct option is 1.

For the second question, it should be noted that Trey is not necessarily correct. He will need to ensure that the compass width remains the same for each arc drawn from P and R. The correct option is A.

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Answer:

936

Step-by-step explanation:

First calculate the volume of each container. to calculate volume, multiply the length * width * height.

For Container A, the volume is 13 * 19 * 25 = 6175 inches.

For Container B, the volume is 13 * 13 * 31 = 5239 inches.

6175 - 5239 = 936 so the volume Container A is 936 cubic inches greater than the volume of Container B.

Answer:

3x = 42

Step-by-step explanation:

8=112/x

Multiply each side by x

8x = 112

Divide each side by 8

x = 112/8

x =14

Multiply each side by 3

3x = 14*3

3x = 42

1. C. Gravity is a force that acts as an inversely proportional square law with respect to distance.

2. B. Type Ia supernovae

3. D. Downwards; towards the center of the Sun

The interpretation of the equations and the correct options for the given questions are as follows:

Question 1:

The equation interpretation is related to gravity. The equation states a relationship between gravity and distance. The correct option is:

C. Gravity is a force that acts as an inversely proportional square law with respect to distance.

Question 2:

To test how the constant G (gravitational constant) has changed over the evolution of the Universe, certain phenomena or objects are used. The correct option is:

B. Type Ia supernovae

Question 3:

Based on the excerpt, the direction of gravity from the Sun is described. The correct option is:

D. Downwards; towards the center of the Sun

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The work done in pumping water out over the top edge to empty the tank is approximately 9984 foot-pounds, rounded to one decimal place.

To calculate the work done in pumping water out of the tank, we will use the formula:

Work = weight of water × height to be lifted

First, let's find the volume of the tank:

Next, find the total weight of the water in the tank:

Since the height of the tank is 4 feet, and we need to pump the water over the top edge, we can assume the average height the water needs to be lifted is half the height of the tank, which is 2 feet.

Now, we can calculate the work done:

So, the work done in pumping water out over the top edge to empty the tank is approximately 9984 foot-pounds, rounded to one decimal place. Here is the visualization:

_______

|       |

|       | 4 feet

|       |

|_______|

  5 feet

|\

| \

h  \

|___\____

    5 feet

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Answer:

\(angle \: abc = \\ 4x + 2x = 180 \\ 6x = 180 \\ x = 30 \\ angle \: dbc = 2x \\ = 2 \times 30 \\ = 60\)

Answer:

122

Step-by-step explanation:

SA=2lw+2lh+2hw

SA = 2(7)(4) + 2(7)(3) + 2(3)(4)

SA = 122

Answer: 7.5

Step-by-step explanation: hope this help :)

Answer:

7.5

Step-by-step explanation:

hope this help you guys to answer the question

Let the length of the first piece be "x", second piece be "y" and third piece be "z".

Total length is 234 inches, so we can write:

Also,

• Second piece is 4 times the first piece, ,we can write:

• Third piece is 8 times the first piece, ,we can write:

Substituting these 2 equations into the first equation, we will have an equation in x. Then we solve for x. Shown below:

Consequently, we can find y and z >>>>

y = 4x

y = 4(18)

y = 72

and

z = 8x

z = 8(18)

z = 144

First Piece = 18 inches

Second Piece = 72 inches

Third Piece = 144 inches

Step-by-step explanation:

Probability of A  is  10 + 5  =15

Probability of B is   9 + 5   ( but you already counted the '5')  

 so just count   9

9+ 15 = 24

  this is  24 out of     16 + 10 + 5 + 9 = 40

      or    24/40   which reduces to 3/5   or  .6   or  60%

Using the equation given:

P(A) + P(B) - P(A and B)

  15  + 14    - 5    = 24       this is out of the entire number 40

               24/40 = same as above

Answer:

plz mark brainliest

Step-by-step explanation:

16/3 or 5 1/3

Answer:

\(u=\frac{16}{3}\)

General Formulas and Concepts:

Pre-Algebra

Step-by-step explanation:

Step 1: Define

\(\frac{7}{6} =\frac{u+4}{8}\)

Step 2: Solve for u

Step 3: Check

Plug in u into the original equation to verify it's a solution.

Here we see that 7/6 does indeed equal 7/6.

∴ \(u=\frac{16}{3}\) is a solution of the equation.

Answer:

6

Step-by-step explanation:

well 5 divided by 3/4 is 6.66666666667 which you can say is 6

There are one combination of choosing all 8 from 8 items when the order does not matter.

Therefore the answer is 1.

The number of combinations of 8 items is given by the formula:

C(n, k) = n! / (k!(n-k)!)

where n is the total number of items and k is the number of items in each combination.

In this case, we want to find the number of combinations of 8 items, so n = 8 and k = 8.

Plugging these values into the formula, we get:

C(8, 8) = 8! / (8!(8-8)!) = 8! / (8!(0!))

= 8! / 8! = 1.

So, there is only 1 combination of 8 items when k = 8.

It's important to note that a combination is a set of items in which the order doesn't matter, so the order of the items in the set doesn't affect the number of combinations. If you want to find the number of permutations, in which order matters, it would be 8! (8 factorial) = 8x7x6x5x4x3x2x1 = 40320.

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Answer:

74 degrees

Step-by-step explanation:

Start w/180 degrees. (The total measure of a triangle.) Then subtract 106 (the sum of the 2 known angles) from 180. We then get 74 degrees (The measure of the missing angle)

Answer:

25

Step-by-step explanation:

we have to subtract SPQ from SRQ=SQR

mark me as brainliest

Answer:

A

Step-by-step explanation:

Answer:

26

Step-by-step explanation:

104 miles

4 hours

so do   104/4, then you get 26

so 26 miles per an hour

Speed of the car is 26 miles per hour.

Speed can be measured as the distance traveled by a body in a given period of time. The SI unit of speed is m/s.

Speed formula can be used to find the speed of objects. The formula for the speed of a given body can be expressed as,

Speed = Distance ÷ Time

Given,

Car travels distance = 104 miles

Time taken to travel 104 miles = 4 hours

Speed = distance/ time

Speed of car

= 104/4

= 26 miles per hour

Hence, 26 miles per hour is the speed of car.

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In general form, the equation is 8x² + 30x - 2x = 0.

In factored form, the equation is 4x(2x + 7) = 0.

To solve the equation 8x² + 30x = 2x, we can rearrange it to bring all the terms to one side:

8x² + 30x - 2x = 0

Combining like terms:

8x² + 28x = 0

Now, let's factor out the common factor of 4x:

4x(2x + 7) = 0

To find the solution set, we set each factor equal to zero and solve for x:

4x = 0 -> x = 0

2x + 7 = 0

2x = -7

x = -7/2

Therefore, the solution set for the equation is {0, -7/2}.

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The required cycle-time is approximately 57.6 seconds.

To find the required cycle time, we need to divide the total available time by the number of units to be produced.

Total available time: 16 hours = 16 * 60 minutes = 960 minutes = 960 * 60 seconds = 57,600 seconds

Number of units to be produced: 1,000 units

Required cycle time: Total available time / Number of units

Cycle time = 57,600 seconds / 1,000 units

Cycle time ≈ 57.6 seconds

Therefore, the required cycle time is approximately 57.6 seconds.

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Answer:

24 inches

Step-by-step explanation:

It is the same because the rotation doesn't change the size of the triangle

The perimeter of triangle D'E'F' is 24 inches.

We have given,

Triangle DEF is rotated 90° clockwise around the origin to create triangle D' E'F'.

If the perimeter of triangle DEF is 24 inches, what is the perimeter of triangle D' E' F'

It is the same because the rotation doesn't change the size of the triangle.

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Answer:

The change is a decrease of $2700.

Step-by-step explanation:

Given

Total Number of people = 27

Amount each person withdrew = $100

The total withdrawn amount by 27 people = 100 × 27

                                                                       = $2700

Let M be the amount of money in the ATM at the beginning.

As $2700 was drawn from the ATM, therefore, the change the amount of money in the machine will be:

It means the change is a decrease of $2700.

Answer:

Area of the rhombus ABCD = 16 square units

Step-by-step explanation:

Area of a rhombus = \(\frac{1}{2}(\text{Diagonal 1})(\text{Diagonal 2})\)

From the graph attached,

Diagonal 1 = Distance between the points A and C

Diagonal 2 = Distance between the points B and D

Length of a segment between (x₁, y₁) and (x₂, y₂) = \(\sqrt{(x_2-x_1)^{2}+(y_2-y_1)^2 }\)

Diagonal 1 (AC) = \(\sqrt{(4-0)^2+(-1+1)^2}\) = 4 units

Diagonal 2(BD) = \(\sqrt{(2-2)^2+(3+5)^2}\) = 8 units

Now area of the rhombus ABCD = \(\frac{1}{2}(\text{AC})(\text{BD})\)

                                                       = \(\frac{1}{2}\times 4\times 8\)

                                                       = 16 units²

Therefore, area of the given rhombus is 16 units².

Answer:

$395

Step-by-step explanation:

You could have used a loan calculator online

Answer:

$37.05 i think

Step-by-step explanation: