Envisionmath 2.0, additional practice workbook, accelerated grade 7 solutions

Explanation:

A longitudinal wave is composed of compressions and rarefactions. An example of a lomgitudinal wave is sound waves. It's a type of wave thay moves parrelel to axis.

The angles of rotation is described as  an angle that is created by the beginning and ending positions of a ray that is known to moves in circles (rotates) about its own endpoint.

An example of this type of angle is given in the image attached. The image is an example of an angles that is greater than 180° and less than 0°.

The measurement of a  radian of an angle is known to be the length of the arc on the unit circle that is said to be  subtended by that angle.

Note that the ways to Measure Angles is by:

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Answer:

two compression rings

Explanation:

yolo

Option C) 120cm² is the correct answer.

Hence, the lateral surface area of the rectangular prism in 120cm².

This question is incomplete, the complete question is;

Find the lateral surface area of the rectangular prism in centimeters.

L=4, W=3, H=9

A) 96 cm2 b) 108 cm2 c) 126 cm2 d) 142 cm2.

A rectangular prism or Cuboid is simply a three dimensional solid shape with six faces that are rectangles.

The lateral surface area of the rectangular prism is the perimeter of the base multiply by the height of the prism. It is expressed as:

[tex]LSA = 2 ( l + w ) h[/tex]

To determine the lateral surface area of the rectangular prism, we substitute our given values into the above expression.

[tex]L.S.A = 2(l+w)h\\\\L.S.A = 2( 4cm + 3cm )9cm\\\\L.S.A = 2( 7cm)9cm\\\\L.S.A = 126cm^2[/tex]

Option C) 120cm² is the correct answer.

Hence, the lateral surface area of the rectangular prism in 120cm².

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False, frozen water is denser than liquid water and does not allow lake organisms to survive water.

By definition, density is the mass per unit volume of a substance, a property which is characteristic to each substance.

By convention, solid state of a substance are said to be denser than liquid state of the same substance. Hence, it follows that frozen water is denser than liquid water and does not allow lake organisms to survive.

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Answer:

True

Explanation:

I took the quiz

Answer:

The answer is B

Explanation:

If any of the numbers do not have a line underneath then the inside of the circle should not be shaded. If it does have a line underneath then the whole circle should be shaded. Then you look at the direction it is going, look carefully.

Answer:

To solve an equation by using the square root property, you will first isolate the term that contains the squared variable. You can then take the square root of both sides and solve for the variable. Make sure to write the final answer in simplified form.

Answer:

A batch of one hundred forty semiconductor chips would be inspected by choosing a sample

An example of parallel and perpendicular lines are the steps walk of a straight ladder, the opposite sides of a rectangle.

When there are two non vertical lines that are in found to be in the same plane such as the same slope, then a person can say that the lines are parallel.

But when two non-vertical lines in that are same to be of the same plane intersect at a right angle one can therefore say that they are perpendicular lines.

An example is "write an equation in slope-intercept form for the line that passes through the given point and is parallel to the graph of the given equation". The equation that fits the graph (attached) is y = 2x + 1.

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How most candidates run for office is; Political parties usually recruit and train people at the local level they believe are most fit to run for office.

A political campaign is known to be a form of an organized work which aim to influence the decision making procedures within a particular group of people.

In politics, the major political campaigns are targeted at  mainly general elections and candidates set apart for head of state or head of government, such as the office of the president or other elective positions.

FInally, the way candidates are recruited to run for office is Political parties usually recruit and train people at the local level they believe are most fit to run for office.

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It is useful to have a bank account and routing numbers when using tax preparation software so as to indicate where tax refunds should be sent.

A tax preparation software can be defined as a type of computer software that is designed and developed to assist individuals when they are filing their taxes, tax returns and bank account preparations.

Basically, it is very useful and important for individuals to have a bank account and routing numbers when using tax preparation software because it would help them to indicate where tax refunds should be sent.

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The appropriate phrase from the list that uses the verb/subject agreement is "When someone in my family has a birthday, we always have a party".

The Subject-verb agreement simply means that a subject and its verb must be both singular or plural. In this case, a singular subject takes a singular verb and a plural subject takes a plural verb.

From the complete question, the appropriate phrase from the list that uses the verb/subject agreement is "When someone in my family has a birthday, we always have a party".

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Answer:

For long-lived assets that have been in use for more than one accounting period, Depreciation Expense on the debit. Accumulated Depreciation on the credit.

Explanation:

Therefore, the entry that was made by the accountant, assets and stockholders' equity will be decreased.

For long-lived assets that have been in use for more than one accounting period, Depreciation Expense on the income statement will be less than Accumulated Depreciation on the balanced sheet. The correct option is 2.

Depreciation expense is shown on the Income Statement for long-lived assets that have been in use for more than one accounting period, while accumulated depreciation is reported on the Balance Sheet.

The part of an asset's cost that is spread out as an expense over its useful life is represented by depreciation expense.

It is deducted from the company's net income for the accounting period and reported as an operational expense on the income statement.

Thus, depreciation expense is shown as an expense on the income statement, which lowers net income, while accumulated depreciation is shown as an asset's carrying value on the balance sheet. The correct option is 2.

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Your question seems incomplete, the probable complete question is:

For long-lived assets that have been in use for more than one accounting period, Depreciation Expense on the ______ Accumulated Depreciation on the ______.

An example of angles of rotation and radian measure question is convert  the measure 20° to radian and then from radian to degree.

Radians and degrees are known to often measure angles. Note that one can convert from radian to degree and from degree to radian.

Note that one rotation that is around a unit circle is said to equals 360 degrees or 2π radians.

To solve for the option above 20°

One can say in Radian, it will be π/180

In degree , it will be π/9

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Answer:

he should measure it with a thermometer that sticks into the dish.

Explanation:

Hope this helps you :)

Answer:

The pressure exerted on the table due to the book is 200 N/m².

Explanation:

The pressure exerted on the table due to the book is 200 N/m².

The given parameters;

mass of the book, m = 400 g = 0.4 kg

dimension of the table,  = 0.10m x 0.20 m.

gravitational field strength g =  10 N/kg.

The area of the table is calculated as follows;

A = 0.1 x 0.2 = 0.02 m²

The pressure exerted on the table due to the book is calculated as follows; where;

F is the force of the book due to its weight

Thus, the pressure exerted on the table due to the book is 200 N/m².

The angular speed simply describes the way that things turn which is described in units such as revolutions per minutes, degree per seconds, etc.

Your information is incomplete as the diagram isn't provided. Therefore, an overview will be given.

It should be noted that angular speed simply means the measure of how fast the central angle of the rotating body changes with respect to time.

The angular speed is simply calculated by multiplying the angle of rotation and the time taken to complete the rotation.

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These are the complete sentences using the preterite tense:

In this exercise, the sentences are conjugated in the preterite tense.

The Spanish preterite tense ("pretérito perfecto simple" in Spanish) is used to talk about actions completed at some point in the past.

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Assuming the regular price of the jackets is $80. The number of  jackets that could be bought at the sale if a shopper spent $576​ is: 12 jacket.

First step is to find new price using this formula

New price=Regular price×(100-Discount)

New price=$80×(100%-40%)

New price=$80×60%

New price=$48

Second step is to find the number of sold jackets

Number of sold jacket=Amount spent/New price

Number of sold jacket=576 / 48

Number of sold jacket= 12 jackets

Inconclusion the number of  jackets that could be bought at the sale if a shopper spent $576​ is: 12 jacket.

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The Gibbs free energy ΔG for the vaporisation of 2-methylbutane, in KJ/mol is 8.24 KJ/mol

The Gibbs free energy for the reaction can be obtained as follow:

ΔG = ΔH – TΔS

ΔG = 25.22 – (201 × 8.448×10¯²)

ΔG = 25.22 – 169.8048

ΔG = 8.24 KJ/mol

Thus, the ΔG for the reaction is 8.24 KJ/mol

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Answer:

There are 1.806×10²⁴ atoms in 3 moles of iron.

Explanation:

Step 1:

Data obtained from the question

Number of mole of Fe = 3 moles

Number of atom =?

Step 2:

Determination of the number of atom.

From Avogadro's hypothesis, we understood that:

1 mole of Fe = 6.02×10²³ atoms

Therefore,

3 moles of Fe = 3 × 6.02×10²³ atoms

3 moles of Fe = 1.806×10²⁴ atoms

Thus, 3 moles of iron, Fe contains 1.806×10²⁴ atoms.

Geometric Series is known to be the exact sum of the terms of a geometric sequence. Its practice work example is given below:

This is known to be the terms that exist  between two nonconsecutive terms that belongs to a geometric sequence.

The Method to used in the above question is Geometric sequence.

The Rule of geometric sequence is that f (n)arⁿ⁻¹

Where A  =  the first term,

r = the  common ratio

Therefore, r = -6 ÷ -3 = 2n

f (n) = -3. 2ⁿ⁻¹

Then you change the term n with 9

f (9) = 3.2⁹⁻¹

= -768

Therefore, the the stated term is 768.

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A probable prediction is that the grazed area will recover faster from drought due to greater biodiversity.

Biodiversity refers to the variation (both phenotypic and genetic) present in a community and/or population.

Biodiversity is a fundamental issue for achieving ecosystem restoration after natural catastrophes.

In this case, drought is an environmental challenge that is more easily faced in presence of suitable levels of biodiversity.

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A powdered mix being transformed into a cool jiggly salad or dessert is True.

Thus is defined as a processed-food product which is usually in the form of powder for consumption.

The powdered form can be used to make a variety of food such as salad and dessert thereby making True the most appropriate choice.

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The completely factored form of his polynomial 6x³ - 12x² + 7x - 14 Wen factored is (x-2) ( 6x² + 7)

6x³ - 12x² + 7x - 14

= 6x² (x - 2) + 7(x - 2)

6x²(x – 2) + 7(x – 2)

= (x-2) ( 6x² + 7)

Therefore, the completely factored form of his polynomial is (x-2) ( 6x² + 7)

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Answer:

Answer  is A

Explanation:

The center of mass of the rod of length L whose mass density changes from one end to the other quadratically is; X_cm =  ³/₄L(ρ₀ + ρ₀)/(2ρ₀ + ρ₁)

The formula for the center of mass of a body is defined as;

X_cm = (1/M) ∫r.dm

Where;

X_cm is the position of the center of mass

M is the total mass of the body

r is the position with respect to an origin

The density of a body is the relationship between two of its magnitudes that change constantly and so we have;

ρ = m/x

Applying small changes and we have;

ρ = dm / dx

dm = ρ*dx

We are given the expression;

ρ₀ = ρ₀ + (ρ₁ -ρ₀) (x/L)²

Thus;

dm = (ρ₀ + (ρ₁ -ρ₀) (x/L)²)dx

Since the whole system is on the x-axis, we integrate from the initial point x = 0 to the upper limit X = L. This gives;

X_cm =  M⁻¹  ∫ x  [ρ₀ + ( ρ₁-ρ₀) (x/L)²] dx

X_cm = M⁻¹  [∫ ρ₀ x dx + I (ρ₁-ρ₀) / L² x³ dx]

X_cm = M⁻¹  [ρ₀ x²/ + (ρ₁ -ρ₀) / L² x⁴/4]

X_cm = M⁻¹ [ρ₀/2 (L2-0) + (ρ₀₁ -ρ₀) /4L² (L⁴-0)

X_cm = M⁻¹ [ρ₀ L²/2 + (ρ₁ -ρ₀)/4  L²]

X_cm = M⁻¹ L² [ρ₀/4 + ρ₁/4]

X_cm = M⁻¹ L²/4 ( ρ₀ +ρ₁)

The only parameter that we don't know explicitly is the total mass, but we can look for their relationship using the concept of density.

M = ∫dm = ∫ρ.dx

M = ∫[ρ₀ + (ρ₁ -ρ₀)/L²x²] dx

We integrate between the limits of integration x = 0 and x = L to get;

M = ρ₀ x + (ρ₁ -ρ₀)/L² *x³/3

M = ρ₀ L + (ρ₁ -ρ₀)/3L²  L³

M = ρ₀ L + (ρ₁-ρ₀)/3  L

M = L(ρ₀ + ρ₁/3   -ρ₀/3)

M = L(2/3 ρ₀ + ρ₁/3)

M = ¹/₃L(2ρ₀ + ρ₁)

We will replace and simplify in the center of mass equation to get;

X_cm = ¹/₄L²[ρ₀ + ρ₁] / [L/3 (2ρ₀ + ρ₀)/L]

X_cm =  ³/₄L(ρ₀ + ρ₀)/(2ρ₀ + ρ₁)

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Answer:

the correct answer is 46.38%

Explanation:

hope this helps

have an awesome day -TJ :)