a chemist has 5 1/10 kg of calcium. if she uses 0.15 kg of the compound each time she performs an experiment, for how many experiments will her supply last?

Step-by-step explanation: We are given three rectangular figures A, B and C.

We need to determine which polygons are similar and which are not.

Note: The sides of similar figures are in proportion.

Let us check first A and B figures.

150/108 = 50/36

100/72 = 50/ 36.

We can see 150/108 = 100/72 = 50/ 36.

Sides are in proportion of Polygons A and B.

Let us check first A and C figures.

150/132 = 25/22

100/80 = 5/4.

We can see 150/132 ≠ 100/80.

Sides are not in proportion of Polygons A and C.

Let us check first B and C figures.

108/132 = 9/11.

72/80 = 9/10.

We can see 108/132 ≠ 72/80.

Sides are not in proportion of Polygons B and C.

The height of the wall if A repairman leans the top of an 8 ft ladder against the top of a stone wall, the base of the ladder is 5.5 ft from the wall, is 5.81 feet.

Trigonometry is the branch of mathematics that deals with particular angles' functions and how to use those functions in calculations. There are six popular trigonometric functions for an angle. Sine, cosine, and tangents are their names and acronyms (tan).

Given:

A repairman leans the top of an 8 ft ladder against the top of a stone wall, the base of the ladder is 5.5 ft from the wall,

Calculate the height of the wall as shown below,

Assume the height of the wall is x then,

x² + base² = ladder height²

x² + 5.5² = 8²

x² = 64 - 30.25

x² = 33.75

x = √33.75

x = 5.81 ft

Thus, the height of the wall is 5.81 feet.

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Answer:

Option 4 is the image of the given figure.

Step-by-step explanation:

We are given that,

The shape EFGHCD is transformed to form another shape.

From the options, we see that,

Figure 2 and 3 does not have the same vertices as that of the figure.

So, they are discarded.

Since, after transforming a figure, we get a new figure.

So, the vertices cannot have same name as that of the original figure.

So, option 1 is discarded.

Thus, we get,

Option 4 is the image of the given figure after transformation as shown below.

Answer:

1- The average rate of change of f(x) is greater than the average rate of change of g(x).

5- The average rate of change of f(x) is -0.1, and the average rate of change of g(x) is -0.25.

Step-by-step explanation:

average rate of change of a function h(x) in the interval [a, b] is computed as follows:

average rate of change = h(b) - h(a)/(b - a)

So, for f(x) (see table):

average rate of change = f(10) - f(4)/(10 - 4) = (0.4 - 1)/(10 - 4) = -0.1

And for g(x) (see figure):

average rate of change = g(10) - g(4)/(10 - 4) = (1 - 2.5)/(10 - 4) = -0.25

A cube with side lengths measuring 7 inches means that each side of the cube is 7 inches long.

To find the volume of the cube, you multiply the length, width, and height of the cube since all sides are equal:

Volume = length × width × height

For a cube, all these measurements are the same, so you can simply cube the length of one side:

Volume = 7 inches × 7 inches × 7 inches

Volume = 7³ cubic inches

Volume = 343 cubic inches

So, the volume of the cube is 343 cubic inches.

A cube with side lengths measuring 7 inches implies that each side of the cube is 7 inches long.

To find the volume of the cube, we use the formula for the volume of a cube, which is side length cubed.

Since all sides of a cube are equal, we simply cube the length of one side: 7 inches × 7 inches × 7 inches. This equals 7³ = 343 cubic inches.

Therefore, the volume of the cube is 343 cubic inches. In a cube, all sides, angles, and faces are congruent, making it a regular polyhedron with 6 square faces.

Complete Question:

A cube that has side lengths measuring 7 inches.

Answer:

  multiply the others by n

Step-by-step explanation:

If you want to keep the same ratio, you must multiply all of the numbers by n.

A ratio of 1 : 1 will remain 1 : 1 if all the numbers are multiplied by n:

  1 : 1 = n : n

_____

Comment on alternate interpretation of the question

There are occasions for multiplying the ratio by n:

  x/n = 1/2

To solve this for x, we multiply the ratio (1/2) by n. This multiplies the numerator, but does not change the denominator.

  x = n(1/2) = n/2

The two numbers are 33 and 14, where 33 is the larger number and 14 is the smaller number that is 19 less than the larger number. Their sum equals 47.

Finding Two Numbers Based on Sum and Difference

The problem given states that the sum of two numbers is 47, and that the smaller number is 19 less than the larger number. To solve this, let's denote the larger number as x and the smaller number as x - 19. The equation representing their sum is:

x + (x - 19) = 47

Combining like terms, we get:

2x - 19 = 47

Adding 19 to both sides gives:

2x = 66

Dividing both sides by 2, we get:

x = 33

So the larger number is 33. Now we can find the smaller number:

33 - 19 = 14

Therefore, the two numbers are 33 and 14.

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To find the combined width of the three tables, add up their individual widths.

To find the combined width of the three tables, we need to add up their individual widths.

The first table is 3 feet 11 inches wide, which is equivalent to 3 feet 11 inches + 0 feet 11 inches = 3 feet 22 inches.

The second table is 6 feet 10 inches wide, which is equivalent to 6 feet 10 inches + 0 feet 10 inches = 6 feet 20 inches.

The third table is 3 feet 7 inches wide, which is equivalent to 3 feet 7 inches + 0 feet 7 inches = 3 feet 14 inches.

Adding up the widths: 3 feet 22 inches + 6 feet 20 inches + 3 feet 14 inches = 12 feet 56 inches.

Therefore, the combined width of the three tables is 12 feet 56 inches.

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The scale of the drawing is [tex]\( \boxed{1 : 0.4} \).[/tex]

To find the scale of the drawing, we need to determine the ratio between the length in the drawing and the actual length.

Let x  be the scale of the drawing.

According to the given information, the length of the plane in the drawing is 35 centimeters, and the actual length of the plane is 87.5 feet.

So, we can set up the proportion:

[tex]\[\frac{\text{Length in drawing}}{\text{Actual length}} = \frac{35}{87.5} = x\][/tex]

To find x , we solve for it:

[tex]\[x = \frac{35}{87.5} = 0.4\][/tex]

The scale of the drawing is [tex]\( \boxed{1 : 0.4} \).[/tex]

The probability of Max winning the first three games while losing the rest two is 0.023.

The probability helps us to know the chances of an event occurring.

[tex]\rm Probability=\dfrac{Desired\ Outcomes}{Total\ Number\ of\ outcomes\ possible}[/tex]

As it is given that the probability of winning the game is 2/5. Since the sum of all the probability of an event is 1, therefore, the probability of losing the game can be written as,

Sum of all probability = Probability of winning + Probability of losing

[tex]1 = \dfrac25+\text{(Probability of losing)}\\\\\text{(Probability of losing)}=\dfrac35[/tex]

Thus, the probability of losing the game is 3/5.

As we need to calculate the probability of Max winning the first three games while he losing the rest two. Therefore,

[tex]P = \dfrac25 \times \dfrac25 \times \dfrac25 \times \dfrac35 \times \dfrac35 = \dfrac{72}{3125} = 0.023[/tex]

Hence, the probability of Max winning the first three games while losing the rest two is 0.023.

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The statements that are true about the intersecting rays are

A) m∠3 = m∠1

B) m∠2 = 60°

D) m∠3 = 120°

Two straight lines that intersect at the same location are said to be intersecting lines. The junction point is the place where two intersecting lines meet. Four angles are created when two lines cross. The four angles added together always equal 360 degrees.

Perpendicular lines are two straight lines that intersect and form right angles. When two perpendicular lines intersect, they form four right angles.

When lines intersect, two angle relationships are formed:

Opposite angles are congruent

Adjacent angles are supplementary

Given data ,

Let the two intersecting lines be m and n

Now , the angles formed are shown in the diagram

where the measure of ∠1 = ∠3 ( Opposite angles are congruent )

Now , the measure of ∠2 = 180° - ( 65° + 55° ) ( angles in a triangle = 180° )

The measure of ∠2 = 60°

So , the measure of ∠3 = 180° - ∠2 ( Adjacent angles are supplementary = 180° )

And , the measure of ∠3 = 120°

Hence , the angles in the intersecting lines are solved

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The value of b in the  equation is [tex]b=\frac{2A}{h}[/tex].

Simplification of an equation is the process of writing an equation in the most efficient and compact form without affecting the value of the original equation.

For the given situation,

The equation is [tex]A=\frac{bh}{2}[/tex]

The equation can be simplified as

⇒ [tex]A=\frac{bh}{2}[/tex]

⇒ [tex]2A=bh[/tex]

⇒ [tex]b=\frac{2A}{h}[/tex]

Hence we can conclude that the value of b in the  equation is [tex]b=\frac{2A}{h}[/tex].

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Answer:

D) 704 in.²

Step-by-step explanation:

The area is height × width.

So, the area =32 × 22 = 704 in.²