the radius of a circle is 1 kilometer. What is the circle’s circumference?

Answer:

The third answer choice (x = 2) is the correct one.

Step-by-step explanation:

2 ln 4x = 2 ln 8 simplifies to ln 4x = ln 8.

Next, ln 4x = ln 8 simplifies to 4x = 8, and, finally,

we get

x = 8/4 = 2.

The third answer choice (x = 2) is the correct one.

Answer:

the answer is C

Step-by-step explanation:

i took the test

Answer: THOUSANDTHS

Step-by-step explanation:

Answer:

35.0 units

Step-by-step explanation:

we know that

A mid-segment of a triangle is a segment connecting the midpoints of two sides of a triangle. This segment is always parallel to the third side, and the length of the mid-segment is half the length of the third side

so

[tex]6x+5=\frac{1}{2}(3x+55)[/tex]

solve for x

[tex]12x+10=3x+55\\12x-3x=55-10\\9x=45\\x=5[/tex]

Find the length of the mid-segment

substitute the value of x

[tex]6(5)+5=35.0\ units[/tex]

Answer:

The solution of the system is x=-2, y=-1

see the explanation

Step-by-step explanation:

we know that

When a system of linear equations is solved using a graph, the solution of the system of equations is the point of intersection of the two lines

In this problem

The intersection point both lines is (-2,-1)

therefore

The solution of the system is x=-2, y=-1

Answer:

sinB = Opposite/Hypotenuse

Step-by-step explanation:

no need for explanation

Answer:

Step-by-step explanation:

hello :

2(x-5)+2-3(5-2x)=16​

2x-10+2-15+6x =16

8x-23 =16

8x =39

x = 39/8

Length of side of base is 5.45

Step-by-step explanation:

Here, since the base is an equilateral triangle and it is given that height of the prism is equal to that of the base, measures of base and height are equal.

⇒ Volume = 1/2 × b × h × h (b and h are equal)

⇒ 81 = 1/2 × b³

⇒ b³ = 162

⇒ b = ∛162 = 5.45

The equivalent options are:

"One-sixth x + 47" ⇒ 2nd

"1 and two-thirds x + 35 minus 1 and one-half x + 12" ⇒ 3rd

"5 (one-third x) + (5) (7) minus (3) (one-half x) + (3) (4)" ⇒ 4th

Step-by-step explanation:

The expression is: 5( [tex]\frac{1}{3}[/tex] x + 7) - 3( [tex]\frac{1}{2}[/tex] x - 4) to find the equivalent to it:

Multiply the bracket ( [tex]\frac{1}{3}[/tex] x + 7) by 5

∵ 5( [tex]\frac{1}{3}[/tex] x + 7) = 5(

Multiply the bracket ( [tex]\frac{1}{2}[/tex] x - 4) by - 3

∵ -3( [tex]\frac{1}{2}[/tex] x - 4) = -3(

∴ 5( [tex]\frac{1}{3}[/tex] x + 7) - 3( [tex]\frac{1}{2}[/tex] x - 4) =  [tex]\frac{5}{3}[/tex] x + 35 -  [tex]\frac{3}{2}[/tex] x + 12

Add the like terms

∴ 5( [tex]\frac{1}{3}[/tex] x + 7) - 3( [tex]\frac{1}{2}[/tex] x - 4) = ( [tex]\frac{5}{3}[/tex] x - [tex]\frac{3}{2}[/tex] x) + (35 + 12)

To add fraction with different denominators find the LCM of the two denominators and change them by it, then divide the LCM by each denominator and multiply the quotient by the corresponding numerator

∵ LCM of 3 and 2 is 6

∵ 6 ÷ 3 = 2, then multiply 5 by 2

∴  [tex]\frac{5}{3}[/tex] = [tex]\frac{10}{6}[/tex]

∵ 6 ÷ 2 = 3, then multiply 3 by 3

∴ [tex]\frac{3}{2}[/tex] = [tex]\frac{9}{6}[/tex]

∴ ( [tex]\frac{5}{3}[/tex] x - [tex]\frac{3}{2}[/tex] x) =  [tex]\frac{10}{6}[/tex] x -  [tex]\frac{9}{6}[/tex] x = [tex]\frac{1}{6}[/tex] x

∵ 35 + 12 = 47

∴ 5( [tex]\frac{1}{3}[/tex] x + 7) - 3( [tex]\frac{1}{2}[/tex] x - 4) =  [tex]\frac{1}{6}[/tex] x + 47

The 1st option is "One-sixth x + 47"

In the step 5( [tex]\frac{1}{3}[/tex] x + 7) - 3( [tex]\frac{1}{2}[/tex] x - 4) =  [tex]\frac{5}{3}[/tex] x + 35 - [tex]\frac{3}{2}[/tex] x + 12

∵  [tex]\frac{5}{3}[/tex]  = [tex]1\frac{2}{3}[/tex]  and  [tex]\frac{3}{2}[/tex] = [tex]1\frac{1}{2}[/tex]

∴  [tex]\frac{5}{3}[/tex] x + 35 - [tex]\frac{3}{2}[/tex] x + 12 = [tex]1\frac{2}{3}[/tex] x + 35 - [tex]1\frac{1}{2}[/tex] x + 12

∴ 5( [tex]\frac{1}{3}[/tex] x + 7) - 3( [tex]\frac{1}{2}[/tex] x - 4) =  [tex]1\frac{2}{3}[/tex] x + 35 - [tex]1\frac{1}{2}[/tex] x + 12

The 2nd option is "1 and two-thirds x + 35 minus 1 and one-half x + 12"

∵ 5( [tex]\frac{1}{3}[/tex] x + 7) = 5(

∵ -3( [tex]\frac{1}{2}[/tex] x - 4) = -3(

∴ 5( [tex]\frac{1}{3}[/tex] x + 7) - 3( [tex]\frac{1}{2}[/tex] x - 4) = 5(

The 3rd option is "5 (one-third x) + (5) (7) minus (3) (one-half x) + (3) (4)"

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Answer:

[tex]5(\frac{1}{3}x)+5(7)-3 (\frac{1}{2}x)+(3)(4)[/tex]

[tex]1\frac{2}{3}x+35-1\frac{1}{2}x+ 12[/tex]

[tex]\frac{1}{6}x+47[/tex]

Step-by-step explanation:

The given expression is [tex]5(\frac{1}{3}x+7)-3 (\frac{1}{2}x- 4)[/tex]

We expand to get:

[tex]5(\frac{1}{3}x)+5(7)-3 (\frac{1}{2}x)+(3)(4)[/tex]

[tex]\frac{5}{3}x+35-\frac{3}{2}x+ 12[/tex]

As mixed number coefficients:

[tex]1\frac{2}{3}x+35-1\frac{1}{2}x+ 12[/tex]

This simplifies to:

[tex]\frac{1}{6}x+47[/tex]

(a)  [tex]x^{-5}[/tex]

(b)  [tex]3x^{-7}[/tex]

(c)  [tex]$\frac{4}{3}x^4[/tex]

Solution:

To write each of the given expression in the form [tex]ax^n[/tex]:

(a)  [tex]\frac{x^3}{x^8}[/tex]

Using exponential rule: [tex]\frac{a^x}{a^y}=a^{x-y}[/tex]

[tex]$\frac{x^3}{x^8}=x^{3-8}[/tex]

[tex]$\frac{x^3}{x^8}=x^{-5}[/tex]

(b) [tex]\frac{6x}{2x^8}[/tex]

Divide numerator and denominator by the common factor 2, we get

[tex]$\frac{6x}{2x^8}=\frac{3x}{x^8}[/tex]

Using exponential rule: [tex]\frac{a^x}{a^y}=a^{x-y}[/tex]

      [tex]$=3x^{1-8}[/tex]

[tex]$\frac{6x}{2x^8} =3x^{-7}[/tex]

(c)  [tex]\frac{28x^6}{21x^2}[/tex]

Divide numerator and denominator by the common factor 7, we get

[tex]$\frac{28x^6}{21x^2}=\frac{4x^6}{3x^2}[/tex]

Using exponential rule: [tex]\frac{a^x}{a^y}=a^{x-y}[/tex]

        [tex]$=\frac{4}{3}x^{6-2}[/tex]

[tex]$\frac{28x^6}{21x^2}=\frac{4}{3}x^4[/tex]

Answer:

-3 -24x - 36 > -111

-24x - 39 > -111

-24x > -72

x < 3

Answer:

24,000

Step-by-step explanation:

Answer:

No.  3/10 is NOT greater that 3/5.

Step-by-step explanation:

Take two pizzas for example.  Cut one into 10 slices and the other into 5.  Take three out of both and see which one has more of the pie gone.  

Answer:No, You can set it up as a proportion to compare.

Step-by-step explanation:

You can check by changing 3/5 into 6/10(10 is a common denominator, what u do to the bottom, you must do at the top)and as you can see, 6/10 is more than 3/10.

Answer:(please note im not sure)

3/8 (i think).

Step-by-step explanation:

The probability of this not happening in an event is 3/8.

Probability is a measure of the likelihood or chance that a particular event or outcome will occur. It quantifies the uncertainty associated with different possible outcomes in a given situation. In other words, probability helps us understand the likelihood of an event happening.

The probability of not happening of an event is calculated by subtracting the probability of happening of an event.

The probability of not happening of an event is,

P(not) = 1 - P

P(not) = 1 - 5/8

P(not) = 3 /8

Therefore, the probability that the event will not happen is 3/8.

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Answer: [tex]\frac{1}{4}\ cups[/tex]

Step-by-step explanation:

For this exercise it is important to analize the information given in the exercise.

 According to the data provided in the exercise, the recipe says that [tex]\frac{1}{2}\ cups[/tex]  of Parmesan serves four people.

 The, let be "x" the amount of cups of Parmesan cheese that Cordelia will use for her brother's proposal dinner.

In this case, since the proposal dinner is for two people, you can set up the following proportion:

[tex]\frac{4}{\frac{1}{2}}=\frac{2}{x}[/tex]

Finally, you must solve for "x" in order to find its value, as you can observe below:

[tex]8=\frac{2}{x}\\\\8x=2\\\\x=\frac{2}{8}\\\\x=\frac{1}{4}[/tex]

Therefore, knowing the value of "x", you can determine that Cordelia will use [tex]\frac{1}{4}\ cups[/tex]  of Parmesan cheese for the proposal dinner.

The variable 'a' in Albin's equation represents the number of minutes Albin was late for picking up from the daycare, with 3 dollars as the base fee and 0.50 dollars charged for each minute late.

The variable a in Albin's equation, 10.50 = 0.50a + 3, represents the number of minutes of Albin's late pick-up from the daycare. The base fee of the daycare is 3 dollars, which is a fixed amount, while 0.50 dollars is the rate charged per minute for being late. The equation is a way to calculate the total fee based on the minutes Albin is late.

For comparison, if we look at Aaron's Word Processing Service, the total cost of services would be represented by y = 31.50 + 32x, where 31.50 is a fixed cost and the cost for word processing is 32 dollars per hour (x). Similarly, for Svetlana's tutoring sessions, the total income she earns is given by y = 25 + 15x, where 25 is a one-time fee and 15 dollars per hour is her rate of earning.

Answer:

1 -1/5 is the answer #markasbrainliest

This remains the same on the moon as on Earth.  --> MASS

This results from the pull of gravity.  --> WEIGHT

This relates to the amount of matter in an object.  --> MASS

This will change in space.  --> WEIGHT

mass is a SCALAR, weight is a VECTOR

Step-by-step explanation:

In physics:

- The mass of an object is a scalar quantity that gives a measure of the "amount of matter" in an object. It is an intrinsec property of the object, therefore its value does not depend on the location of the object.

- The weight of an object is the force of gravitational attraction exerted on the object. Being a force, it has a magnitude and a direction. Its magnitude is given by

[tex]F=mg[/tex]

where m is the mass of the object and g is the acceleration due to gravity at the location of the object. Therefore, its value depends on the location.

Now we can identify correctly each statement given:

This remains the same on the moon as on Earth.  --> MASS

This results from the pull of gravity.  --> WEIGHT

This relates to the amount of matter in an object.  --> MASS

This will change in space.  --> WEIGHT

mass is a SCALAR, weight is a VECTOR

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There are 20 dimes and 80 quarters

Solution:

Let "d" be the number of dimes

Let "q" be the number of quarters

1 dime = $ 0.10

1 quarter = $ 0.25

Panchito Pantera has 100 coins

Therefore,

number of dimes + number of quarters = 100

d + q = 100 ----------- eqn 1

He has a total of $22. Thus we frame a equation as:

number of dimes x 0.10 + number of quarters x 0.25 = 22

[tex]d \times 0.10 + q \times 0.25 = 22[/tex]

0.1d + 0.25q = 22 --------- eqn 2

Let us solve eqn 1 and eqn 2

From eqn 1,

d = 100 - q ------- eqn 3

Substitute eqn 3 in eqn 2

0.1(100 - q) + 0.25q = 22

10 - 0.1q + 0.25q = 22

0.15q = 22 - 10

0.15q = 12

Divide both sides by 0.15

q = 80

Substitute q = 80 in eqn 3

d = 100 - 80

d = 20

Thus there are 20 dimes and 80 quarters

Answer:

6x6x6

Step-by-step explanation:

The definition of an exponent is how many times a number is multiplied.  For example, 7^5 is 7 multiplied by itself 5 times. (7x7x7x7x7)

Answer:

6x6x6!

Step-by-step explanation:

Have a nice day!

Answer:

Two figures are congruent if they can be superimposed so that they fit exactly. It can be shown that two plane polygons are congruent if and only if a one-to-one correspondence can be established between them such that corresponding sides have the same length and corresponding angles have the same measure.

Thus, figures that are the same size and shape are congruent. Corresponding parts of congruent figures are congruent. Congruent figures, such as those below, may be in different positions.

Congruent shapes

A figure has line symmetry if it can be folded in half and the two halves are congruent. The line made by the fold is the line of symmetry. Line symmetry is also called bilateral symmetry. Figures can have no lines of symmetry or an unlimited number of lines of symmetry.

Step-by-step explanation:

Final answer:

Symmetry refers to a balanced and proportional similarity an object exhibits across a dividing line, while congruency means two objects are identical in shape and size but may differ in position. Human bodies show bilateral symmetry, and symmetry is important for biological functionality and aesthetics. Congruency, meanwhile, is about identical geometry, regardless of orientation or position.

Explanation:

The difference between symmetry and congruency is foundational in understanding geometric principles. Symmetry refers to the balanced and proportional similarity that an object has with respect to a dividing line, plane, or center.

When an object exhibits symmetry, it means that if you were to fold it along its line of symmetry, the two halves would match up perfectly, reflecting one another. For instance, human body plans illustrate bilateral symmetry, where the body can be split into left and right halves that are mirror images of each other.

On the other hand, congruency is a concept that denotes when two shapes are identical in form and size, although they may be flipped, rotated, or moved. In geometry, when two figures are congruent, they have exactly the same dimensions and shape, but their positions may vary. A real-world example of congruence can be seen in the uniformity of manufactured products like tiles or bricks.

To observe how symmetry extends to our senses, consider that our eyes and ears are positioned symmetrically on either side of our head, providing balanced input to our brain which helps us navigate our environment effectively. This speaks to the importance of symmetry not just in aesthetics but also in biological functionality.

Answer: $42.21

Step-by-step explanation:

Henry; $24.12

Gregg; $24.12 / 2= $12.06

Kasey; $ 24.12 / 4= $6.03

$24.12 + $12.06 + $6.03

Answer:

The number of fringes at [tex]d=-2[/tex] is given as 20.

Step-by-step explanation:

Question

A Galapagos cactus finch population increases by half every decade. The number of finches is modeled by the expression

,

where d is the number of decades after the population was measured. Evaluate the expression for d = −2

Given :

The number of  finches is modeled by the expression  :

⇒ [tex]45\cdot1.5^d[/tex]

where [tex]d[/tex] is the number of decades after the population was measured.

To evaluate the expression for d=-2

Solution:

In order to evaluate the given expression to find the number of finches at [tex]d=-2[/tex], we will plugin [tex]-2[/tex] for [tex]d[/tex] in the expression and simplify it.

Plugging in [tex]d=-2[/tex] in the expression:

⇒ [tex]45\cdot 1.5^{-2}[/tex]

Using negative exponent property. [[tex]a^{-x}=\frac{1}{a^x}[/tex]

⇒ [tex]45\cdot \frac{1}{1.5^2}[/tex]

⇒ [tex]45\cdot \frac{1}{2.25}[/tex]

⇒ [tex]20[/tex]   (Answer)

Thus, the number of fringes at [tex]d=-2[/tex] is given as 20.

This means the number of fringes two decades ago was 20.

Answer:  A-122-102=c2

Step-by-step explanation: This is the answer to the missing side length in the right triangle shown.

Option B: 122 + b^2 = 102^2 is the correct equation to find the missing side length in the right triangle.

The equation that would help you find the missing side length in the right triangle is option B: 122 + b2 = 1022.

In a right triangle, the Pythagorean theorem states that the square of the hypotenuse (the side opposite the right angle) is equal to the sum of the squares of the other two sides. In this case, 122 is the length of one side and 102 is the length of the other side. By rearranging the equation, you can solve for the missing side length, b.

Let's rewrite the equation using the proper square notation:

122 + b2 = 1022

122 + b2 = 10404

b2 = 10404 - 122

b2 = 10282

b = √10282

b ≈ 101.4

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Answer:

Step-by-step explanation:

2m^3 - 30m^2 + 108...factor out 2m

2m(m^2 - 15m + 54)

2m(m-9)(m-6) <====

Answer:

11

Step-by-step explanation:

20·55/100=11

Answer: 11

Step-by-step explanation: First write 20% as a decimal by moving the decimal point 2 places to the left to get .20.

Next, the word "of" means multiply, so we have (.20)(55) which is 11.

So 11 is 20% of 55.

Answer:

36%.

Step-by-step explanation:

That is (50.4 / 140) * 100

= 0.36 * 100

= 36 %.

Answer:

d) 15/8

Step-by-step explanation:

tgB =  AC/AB = 15/8

The tangent of an angle is the length of the opposite side (AC) divided by the length of the adjacent side (AB).

Answer: 155

Step-by-step explanation: Well percent means over 100 so we can set up an equation for this problem by reading it from left to right.

What number means x, is means equals,

62% is 62/100, of means times 250.

So we have the equation  x = 62/100 · 250.

Simplifying on the right side side of the equation, notice that 62/100 reduces to 31/50 so we have x = 31/50 · 250.

Think of the 250 as 250/1.

So we can cross cancel the 250 and 50 to 50 and 1.

So we 31 times 5 over 1 or 155.

So 155 is 62% of 250.

Answer: srry ion k

Step-by-step explanation:

Answer: it’s 20

We have, 120% × x = 24

or,

120/100 × x = 24

Multiplying both sides by 100 and dividing both sides by 120,

we have x = 24 × 100/120

x = 20

If you are using a calculator, simply enter 24×100÷120, which will give you the answer.