This morning, Belle took a history test. She got 8 problems right and 32 problems wrong, What percentage did Belle get right?​

Answer:125.66cm

Step-by-step explanation:

Circumference formula is C=2pi (r)

So C=2(pi or 3.14) (20)

Just plug the 20 (radius for the r) and you have the answer.

We are asked to determine the coordinates of a point that is reflected over the line y = x. Let's remember that when we reflect a point (x,y) over y = x, we get the following result:

Therefore, when we reflect the point (2,-3) we get:

Answer:

6

Step-by-step explanation:

Typically these kinds of problems are solved using Venn Diagram.

Let’s solve it differently.

Here, we add the individual subject students and subtract the dual subject students and then add the triple subject students that would give us the count of all the students. If that’s more than number of students then there’s something wrong with the given data. If that’s exactly equal to number of students then all the students have taken some course(s) or the other. If that’s less than number of students then subtracting this from number of students would give us the count of students having not taken any course(s).

Thus, the count of students having taken some courses or the other is:

20+18+16–7–7–9+3 = 57–23

= 34

Subtracting it from 40 gives us 6, which is the count of students not taking any course(s).

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Answer:

0.3x-2

Step-by-step explanation:

(3x/10)-2 = (0.3x) - 2

Depending on the coordinate system used, a vector's magnitude can vary. A vector may be enhanced by the addition of a scalar. When one of a vector's components is nonzero, the vector can have a magnitude of zero.

What is magnitude of a vector ?

A vector's magnitude, represented by the symbol |v|, is used to determine a vector's length. The distance between the vector's beginning point and endpoint is what this amount essentially represents.

What does the vector coordinate system mean?

An ordered list of integers (a tuple) that represents a vector in terms of a specific ordered basis is known as a coordinate vector in the language of linear algebra.

                             The coordinates (5, 2, 1) in a three-dimensional Cartesian coordinate system with the axes as its basis serve as an accessible example.

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Second-Order Partial Derivatives of r(x, y)∂²r/∂x² = ∂/∂x [∂r/∂x] are 7x + 7 and 7y.

For the function f(x, y) = 7x⁸y⁷ + 4x⁶y⁴, find the four second-order partial derivatives.

For the function f(x, y) = 7x⁸y⁷ + 4x⁶y⁴, the four second-order partial derivatives are shown below:

Second-Order Partial Derivatives of f(x, y)df/dxdx (df/dx) = ∂/∂x [∂/∂x f(x, y)]

= ∂/∂x [56x⁷y⁷ + 24x⁵y⁴]

= 392x⁶y⁷ + 120x⁴y⁴

df/dydy (df/dy) = ∂/∂y [∂/∂y f(x, y)]

= ∂/∂y [56x⁸y⁶ + 16x⁶y³]

= 336x⁸y⁵ + 48x⁶y²

df/dxdy (df/dx) = ∂/∂x [∂/∂y f(x, y)]

= ∂/∂x [56x⁸y⁶ + 16x⁶y³]

= 448x⁷y⁶ + 96x⁵y³

df/dydx (df/dy) = ∂/∂y [∂/∂x f(x, y)]

= ∂/∂y [56x⁷y⁷ + 24x⁵y⁴]

= 392x⁷y⁶ + 96x⁵y³

For the function r(x, y) = 4x + 7yxy, find all second-order derivatives.

Using the method of partial differentiation,

we can find the second-order partial derivatives of the function r(x, y) = 4x + 7yxy as shown below:

First-Order Partial Derivatives of r(x, y)∂r/∂x = 4 + 7y ∂r/∂y = 7xy + 7y

Second-Order Partial Derivatives of r(x, y)∂²r/∂x² = ∂/∂x [∂r/∂x]

= ∂/∂x [4 + 7y]

= 0∂²r/∂y²

= ∂/∂y [∂r/∂y]

= ∂/∂y [7xy + 7y]

= 7x + 7

∂²r/∂y∂x

= ∂/∂y [∂r/∂x]

= ∂/∂y [0] = 0

∂²r/∂x∂y

= ∂/∂x [∂r/∂y]

= ∂/∂x [7xy + 7y]

= 7y

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Answer

.62

Step-by-step explanation:

im sorry i cannot provide the steps but using a calculator you can conclude .62

Answer:

0.806 ÷ 1.3

=  

806

1000

÷  

13

10

=  

806

1000

×  

10

13

=  

806 × 10

1000 × 13

=  

8060

13000

=  

8060 ÷ 260

13000 ÷ 260

=  

31

50

Answer:

1/12

Step-by-step explanation:

PLEASE GIVE BRAINLIEST

i hope this helps, thank you and have a good day :)

Answer:

395.64 square inches

Step-by-step explanation:

The area of a 24-inch diameter pizza is:

A = πr² = π(12)² = 144π square inches

If one family member ate 1/8 of the pizza, then 7/8 of the pizza is left.

The remaining area of pizza is:

A remaining = (7/8)(144π) = 126π ≈ 395.64 square inches

Therefore, the answer is 395.64 square inches.

Answer:

395.64 square inches.

Step-by-step explanation:

I took the quiz and got it right

The perimeter and area of the given composite figure are:

Area = 50 cm²

Perimeter = 42 cm

To find the total surface area of the composite figure, we will find the area of each individual surfaces and then add them together.

Formula for area of a triangle is:

Area = ¹/₂ * base * height

Formula for area of a rectangle is:

Area = Length * Width

Thus:

T.S.A = 2(¹/₂ * 4 * 5) + (10 * 3)

T.S.A = 20 + 30

T.S.A = 50 cm²

The perimeter will be the sum of the entire boundary length. Thus:

Perimeter = 3 + 10 + 10 + 3 + 3 + 3 + 5 + 5

Perimeter = 42 cm

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Answer:

√0.08¹² = 0.08⁶

Answer:

\(0.08^6\)

Step-by-step explanation:

\(\sqrt{0.08^{12}}\)

The square root can be written as an exponent.

\(0.08^{12 \times 1/2}\)

Multiply the exponents.

\(0.08^6\)

Based on the given statement, the correct answer would be:

option A. The statement makes sense. Sally listens to music when she is depressed. If she is listening to music, then Sally must be depressed.

The given statement is discussing a potential relationship between Sally's emotional state of being depressed and her behavior of listening to music. The question asks whether the statement makes sense, is clearly true, or does not make sense, and provides four options to choose from.

Option A states that the statement makes sense and suggests that if Sally is listening to music, then she must be depressed. This option is reasonable because the statement establishes a connection between Sally's depression and her behavior of listening to music. It implies that listening to music is a coping mechanism or an activity she engages in when she experiences depressive feelings.

Therefore, if someone observes Sally listening to music, it can be inferred that she might be in a depressed state at that moment.

On the other hand, options B and C can be eliminated because they make extreme and unsupported claims. Option B suggests that Sally only listens to music when she is depressed, which is not explicitly stated in the given statement. Option C states that if Sally is listening to music, then she must not be depressed, which contradicts the initial connection established between depression and listening to music in the statement.

Option D highlights the incomplete nature of the statement but does not render it entirely senseless. It acknowledges that the statement mentions Sally's behavior of listening to music when she is depressed but does not provide information about other potential reasons she might listen to music.

In summary, option A is the most appropriate choice as it aligns with the established correlation between Sally's depression and her listening to music, while considering the possibility of other reasons for her music listening behavior.

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Answer:

b

Step-by-step explanation:

Answer:

B

Step-by-step explanation:

Answer:

Step-by-step explanation:

11 x 56

= 5  5+6   6

         11

  =   616

To multiply a square root by a square root and a whole number, you can use the distributive property of multiplication

Given data ,

Let the numbers be represented by the expression A

Now , the value of A is

A = √2 × 3√5

First, you can simplify each square root:

√2 = 1.4142 (rounded to 4 decimal places)

3√5 = 5.1962 (rounded to 4 decimal places)

Next, you can multiply the two simplified square roots and the whole number:

√2 × 3√5 = 1.4142 × 5.1962 × 3

= 22.3607 × 3

= 67.0821

Hence , the expression is A = √2 × 3√5 = 67.0821

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Answer:

Answer number one, x < 7/12

Answer:

A

Step-by-step explanation:

If you make he denominators equal to each other (in this case 12) the new fractions would be 3/12 and 10/12. Then you would subtract 3/12 from both sides making 7/12 on the right side. The inequality remains facing the same direction, making the answer A or x<7/12.

Answer:

The correct answer is B. 20,000

Step-by-step explanation:

To determine the man's total monthly salary, we can set up a simple equation using the given information. Let's denote the total monthly salary as "x."

According to the information provided, 33% of the man's monthly salary is equal to Birr 6600. We can express this relationship mathematically as:

0.33x = 6600

To solve for "x," we need to isolate it on one side of the equation. We can do this by dividing both sides of the equation by 0.33:

x = 6600 / 0.33

Evaluating the right side of the equation gives:

x ≈ 20,000

Therefore, the man's total monthly salary is approximately Birr 20,000.

Hence, the correct answer is B. 20,000.

Answer:

equal because by adding them u get equal numbers 36 and Bob aquarium is high while Terry aquarium is long and wide.

Answer:

there's nothing there..

Step-by-step explanation:

Answer:

i need the question to answer though

Step-by-step explanation:

The correct option is d. The investment that will earn the greatest amount of interest is d. $1,740 invested for 2 years at 8.0% interest.

This is because this investment has the highest annual interest rate, which is 8.0%.

The amount of interest earned can be calculated using the simple interest formula:

I = P * r * t

where I is the interest earned, P is the principal (the initial amount of money invested), r is the annual interest rate as a decimal, and t is the time period in years.

For investment a, I = 2,400 * 0.05 * 3 = $360

For investment b, I = 1,950 * 0.04 * 4 = $312

For investment c, I = 1,600 * 0.03 * 8 = $384

For investment d, I = 1,740 * 0.08 * 2 = $278.40

Therefore, investment d will earn the greatest amount of interest.

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The correct recursive formula which models the value of his truck after each year is,

⇒ 13,000 (0.85)ⁿ

A number or ratio that can be expressed as a fraction of 100 or a relative value indicating hundredth part of any quantity is called percentage.

To Calculate the percent of a number , divide the number by whole number and multiply by 100.

Given that;

Junior bought a work truck for $13,000.

And, The value of his truck will depreciate, or decrease, by 15% each year.

Hence, We get;

The correct recursive formula which models the value of his truck after each year is,

⇒ 13,000 (1 - 15/100)ⁿ

⇒ 13,000 (1 - 0.15)ⁿ

⇒ 13,000 (0.85)ⁿ

Thus, The correct recursive formula which models the value of his truck after each year is,

⇒ 13,000 (0.85)ⁿ

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Sequence diagrams are used in conjunction with detailed use case descriptions or with activity diagrams.

Sequence diagrams are a type of interaction diagram that display the sequential flow of actions and interactions between objects and components in a system.

These diagrams help to visualize the timing and order of events, making it easier to understand and design complex processes.

By incorporating sequence diagrams with use case descriptions and activity diagrams, a clearer and more comprehensive understanding of a system's functionality can be achieved.

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Answer:

Step-by-step explanation:

Let x be the number of adult tickets Travis bought, and y be the number of children tickets he bought.

We know that Travis bought a total of 14 tickets, so x + y = 14.

We also know that the total cost of the tickets was $54, so 5x + 3y = 54.

We can use the first equation to solve for y in terms of x: y = 14 - x.

Substituting this into the second equation, we get:

5x + 3(14 - x) = 54

Simplifying and solving for x, we get:

5x + 42 - 3x = 54

2x + 42 = 54

2x = 12

x = 6

Therefore, Travis bought 6 adult tickets and 14 - 6 = 8 children tickets.

to find maximum wage of number equality of boy adult and child.

I mean: 48 = 6.8

12 person from here

2 person remain

6 $ remain as well

6 = 2 child ticket

so the answer is 6

The correct answer is true, In a parallelogram the opposite sides are equal.

A parallelogram is a quadrilateral with two pairs of parallel sides, and opposite sides are equal in length, and the opposite angles are equal in measure. Also, the interior angles on the same side of the transversal are supplementary.

It is possible to notice that RUTS is a parallelogram

where RU=TS and PQ = UT.

When you introduce a diagonal RT you form triangles RUT and TSR.

∠URT = ∠STR ----which are alternate angles

∠UTR=∠SRT------alternate angles

RU║ST and PQ║UT

RT=TR -----Common

ΔRUT ≡ ΔTSR by AAS theorem

Thus PQ=UT matches the sides of congruent triangles.

Hence Proved.

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The equation that shows that his hypothesis is wrong is:-

x²+ y²=  25

The definition of an equation in algebra is a mathematical statement that demonstrates the equality of two mathematical expressions. For instance, the equation 3x + 5 = 14 consists of the two expressions 3x + 5 and 14, which are separated by the 'equal' sign.

Remove parentheses from each side of the equation and combine similar terms to make it simpler.

To separate the variable term on one side of the equation, use addition or subtraction.

To find the variable, use division or multiplication.

Vladas said that the equation with a squared term is never a function of x.

According to the Pythagorean Theorem, the square of two natural numbers is the third number. When these numbers are used to create a triangle, a right-angled triangle is formed, with a 90° angle between the two smaller sides.

Among the four provided hypotheses:

Option (C) is true since x2+y2=25.

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Answer:

13,200 feet

Step-by-step explanation:

Answer:

13,200 feet

Step-by-step explanation:

In one mile, there are 5,280 feet.

You're trying to find how many feet are in 2.5 miles, so you can set up a proportion.

X = the number of feet in 2.5 miles.

\(\frac{1 mile }{5280 feet} = \frac{2.5 miles}{X feet}\)

To find X, all you need to do is cross multiply.

So,

X = 5280 × 2.5 = 13,200 feet

\(~~~~~~ \textit{Compound Interest Earned Amount} \\\\ A=P\left(1+\frac{r}{n}\right)^{nt} \quad \begin{cases} A=\textit{accumulated amount}\\ P=\textit{original amount deposited}\dotfill &\$2000\\ r=rate\to 8\%\to \frac{8}{100}\dotfill &0.08\\ n= \begin{array}{llll} \textit{times it compounds per year}\\ \textit{yearly, thus once} \end{array}\dotfill &1\\ t=years\dotfill &10 \end{cases} \\\\\\ A = 2000\left(1+\frac{0.08}{1}\right)^{1\cdot 10}\implies A=2000(1.08)^{10} \implies A \approx 4317.85\)

The parallel lines a and b (a║b), the alternate interior angles, ∠(5·x - 7) and ∠(3·x + 17), and the linear pair angles, ∠(5·x - 7) and ∠(4·y + 3) gives;

Parallel lines are lines that are continuously equidistant from each other along their length and never meet.

The given parameter are;

Line a is parallel to line b, which gives a║b

From the figure, we have;

∠(5·x - 7) and ∠(3·x + 17) are alternate interior angles

Alternate interior angles formed between parallel lines are congruent, which gives;

∠(5·x - 7) ≅ ∠(3·x + 17)

∠(5·x - 7) = ∠(3·x + 17)  definition of congruent angles

5·x - 7 = 3·x + 17

5·x - 3·x = 17 + 7 = 24

2·x = 24

\(x = \dfrac{24}{2} =12\)

x = 12

∠(5·x - 7) and ∠(4·y + 3) are linear pair angles,. which gives;

∠(5·x - 7) and ∠(4·y + 3) are supplementary angles (linear pair angles are supplementary)

∠(5·x - 7) + ∠(4·y + 3) = 180° definition of supplementary angles

5·x - 7 + 4·y + 3 = 180

5×12 - 7 + 4·y + 3 = 180

4·y = 180 - (5×12 - 7 + 3) = 124

y = 124 ÷ 4 = 31

y = 31

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Answer:

B) 6,940,000

Step-by-step explanation:

move the decimal in 6.94 to the right 6 times

Answer:

B

Step-by-step explanation:

Step 1: Solve

Assuming the notation is 6.94 x 10^6

We need to move the decimal point on 6.94 over to the right 6 times because the base of the exponent is 10.

If you move the decimal point over 6 you gey 6,940,000