help pls please again and again anf again​

Answer:

28.26

Step-by-step explanation:

The circumference of a circle is equal to 2πr, where r is the radius. The radius is the distance from the center of the circle to a point on the outside of the circle.

To find the circumference you can plug in the known information and multiply. However, instead of using actual pi, we will use 3.14 because that is what the question says.

This means that the distance around the rug is 28.26 feet.

Answer:

17.5

Step-by-step explanation:

The ratio of "pure drug" to liquid is 35:150

Therefore to evaluate for 75 mls we get the ratio 75/2150 or simply 1/2

we can then multiply 35 by the ratio 1/2

35/2=17.5

State the answer

In 75 mls there are 17.5 grams of pure drug

The amount of the pure drug in 75 ml will be 17.5 grams.

A ratio is a collection of ordered integers a and b represented as a/b, with b never equaling zero. A proportionate expression is one in which two items are equal.

The ratio of the two proportional items will remain the same.

The amount of the drug is directly proportional to the contained liquid.

If 35 gms of the pure drug are contained in 150 ml.

Then the amount of the pure drug in 1 ml will be

⇒ 35 / 150

⇒ 0.2333 grams per ml

Then the amount of the pure drug in 75 ml will be

⇒ 0.2333 x 75

⇒ 17.5 grams

The amount of the pure drug in 75 ml will be 17.5 grams.

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There are 3 groups of 11 travellers each or 11 groups of 3 travellers each.

Since we have 33 travellers and we need to divide them into equal sized groups, we need to find the factors of 33.

So, 33 = 1 × 33 = 3 × 11

So, the two factors of 33 we require are 3 and 11.

Since 11 × 3 = 3 × 11,

So, 3 × 11 implies that we can have 3 groups of 11 travellers each and,

11 × 3 implies that we can have 11 groups of 3 travellers each.

So, there are 3 groups of 11 travellers each or 11 groups of 3 travellers each.

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Using algebraic expressions and equations, Carol should buy 2 t-shirts and 9 sweatshirts.

We can set up an algebraic expressions and equations to determine how many of each type of gift should Carol buy.

An algebraic expression is a number, variable, or the combination of both and operational symbols. On the other hand, an equation is the equality of two expressions separated by "=".

1. Write an equation for the total number of members.

x + y = 11   (equation 1)

where x is the number of members who will get t-shirt

y is the number of members who will get sweatshirt

2. If each t-shirt costs $5 and each sweatshirt costs $12, write an equation for the total amount spent buying the gift.

$5(x) + $12(y) = $118     (equation 2)

where x is the number of members who will get t-shirt

y is the number of members who will get sweatshirt

3. Rewrite equation 1 as an equation of y in terms of x.

x + y = 11   (equation 1)

y = 11 - x

4 . Plug in the expression for y in equation 2 and solve for x.

$5(x) + $12(y) = $118     (equation 2)

5x + 12(11 - x) = 118

5x + 132 - 12x = 118

-7x = -14

x = 2

5. Substitute the value of x in either equation 1 or 2 and solve for x.

x + y = 11   (equation 1)

2 + y = 11

y = 11 - 2

y = 9

Hence, Carol should buy 2 t-shirts and 9 sweatshirts.

Checking,

2 + 9 = 11

Each member will receive a gift.

2($5) + 9($12) =$118

Carol will be spending $118 for the gifts.

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Answer:

Max value: 9

Max x value: -2

Step-by-step explanation:

We're trying to find the vertex of y = 5 - 4x - x²

We can try to convert this equation to vertex form

First, subtract 5 from both sides

y = 5 - 4x - x²

- 5  -5

y - 5 = -4x - x²

Then add -4 to both sides (this is because this the sqaure of half b -4)

y - 5 - 4 = -4x - x²+ 4

y - 9 = -4 - 4x - x²

Factor the right side of the equation

y - 9 = -(x + 2)(x + 2)

y - 9 = -(x + 2)²

Add 9 to both sides

y - 9 = -(x + 2)²

 + 9      + 9

y = -(x + 2)² + 9

To find the max values we have to make it to where x + 2 = 0

x + 2 = 0

  - 2     - 2

x = - 2

When we make equation inside the parenthesis 0, we get y = 9

y = -(-2 + 2)² + 9

y = -(0)2 + 9

y = 9

The expression of the simplified equation 5a = 2a + 15 is a = 3

From the question, we have the following equation

5a = 2a + 15

To start with, we need to subtract 2a from both sides of the equation

This is represented as

5a - 2a = 2a - 2a + 15

Evaluate the like terms on both sides of the equation

This gives

3a = 15

Solving further, we divide both sides by 3

3a/3 = 15/3

Evaluate

a = 5

Hence, the solution is 5

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Answer:  \(\frac{1}{5}g - 2\)

Explanation:

Multiply the outer term \(\frac{1}{5}\) by each term inside the parenthesis. This is an example of the distributive property. Note that \(\frac{1}{5}\) times 10 is equal to 2, because  \(\frac{1}{5}*10 = \frac{10}{5} = 2\).

Answer:

1/5g-2

Step-by-step explanation:

1/5(g-10)=1/5g-2

We have to distribute 1/5 (we multiply it by g and -10)

So, we get 1/5g-2.

I hope this helps!

\(*RosalindCordelia*\)

A survey is given to a random sample of some of the freshman students at a certain high school therefore the statement about the results of the survey which is true is that the responses can be used to make valid inferences about the entire freshman class at that school which is therefore denoted as option A.

This is referred to as a method of gathering information using relevant questions from a sample of people with the aim of understanding populations as a whole.

Since the survey was given to random freshman in that school, then it means that it is unbiased and will provide a valid information about them in that particular school.

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The eccentricity of the ellipse in discuss which is described by the given equation is; √3 / 2.

It follows from the task content that the eccentricity of an ellipse described by the given equation is to be determined.

Recall that the standard form equation of an ellipse takes the form;

(x - h)² / a²+ (y − k)² / b² = 1

Hence, by comparison of the given equation; (x + 7)² /16+ (y − 3)²/4 = 1 to the standard equation; it can be inferred that;

a² = 16 and

b² = 4

Therefore; since the formula for calculating the eccentricity of an ellipse is;

e = √ (1 – ( b² /a² ) ).

Hence, upon substitution of a² = 16 and b² = 4; we have that;

e = √ ( 1 – ( 4 /16 ) ).

e = √ ( 1 - 0.25 )

e = √0.75

e = √3 / 2.

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Answer:

Step-by-step explanation:

You need to convert all into decimals or all into fractions to compare

4 1/6= 4.166666

4.73

41/10= 4.1

4.168

Order:

   41/10      4 1/6      4.168    4.73

Answer:

here's the list of numbers in order from least to greatest:

4 1/6, 4.160, 41/10, 4.73.

Trinomials are expressions with three terms

The factor is not an intelligent guess, because the expression can be further simplified

The factor is given as:

(4x - 2)(3x + 5)

The above factor can further be factorized.

This is shown below

(4x - 2)(3x + 5) = 2(2x - 1)(3x + 5)

Hence, the factor is not an intelligent guess, because the factor can still be further simplified

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Three labeled points on the line are (-2, -2m), (0, 0), and (2, 2m), where m is the slope of the line.

A line passing through the origin but not contained in any of the three coordinate planes can be represented by the equation y = mx, where m is the slope of the line. Since the line passes through the origin, the y-intercept is 0.

To find labeled points on the line, we can choose different values for x and calculate the corresponding y-values using the equation y = mx. Let's choose three values for x: -2, 0, and 2.

For x = -2:

y = m(-2) = -2m

So, one labeled point on the line is (-2, -2m).

For x = 0:

y = m(0) = 0

Another labeled point on the line is (0, 0).

For x = 2:

y = m(2) = 2m

So, the third labeled point on the line is (2, 2m).

These three labeled points (-2, -2m), (0, 0), and (2, 2m) lie on the line passing through the origin, and they are not contained in any of the coordinate planes.

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\(\huge \bf༆ Answer ༄\)

Just add the like terms ~

I hope it helps ~

\( ꧁  \:\large \cal{kaul} \: ꧂\)

Answer:

3.7x + 2.5y

Hope you could get an idea from here.

Doubt clarification - use comment section.

"if a, then b" means that a is a sufficient condition for b, and that b is a necessary condition for a to be true. The statement is true unless a is true and b is false.

The statement "if a, then b" is known as a conditional statement, which is a type of logical statement that is often used in mathematics and other fields. In this case, the statement means that if statement a is true, then statement b must also be true. If a is false, then the truth value of b is not relevant, as the statement is considered true regardless.

The statement "if a, then b" is often written as "a → b" using logical symbols. The symbol "→" is read as "implies" or "if-then".

For example, consider the statements "If it is raining, then the ground is wet" (a → b). This statement is considered true unless it is raining and the ground is not wet, which is a contradiction. If it is not raining, the truth value of "the ground is wet" is not relevant to the truth of the conditional statement.

In summary, "if a, then b" means that a is a sufficient condition for b, and that b is a necessary condition for a to be true. The statement is true unless a is true and b is false.

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y = x is a linear function

y = x³ is a cubic function

y = x⁵ is a 5 power polynomial function.

A relationship that has one output for each input value (x-value) is called a function (y-value). All functions are hence relations. However, not all relationships are functions since not every relationship will satisfy the condition that every distinct input generates just one output.

Check to see if there is a horizontal asymptote or an oblique asymptote by comparing the degrees of the numerator and denominator to the function's end behavior. Plot the asymptotes that are horizontal or oblique.

The Properties of the graph y = x are :

The Properties of the graph y = x³ are :

The Properties of the graph y = x⁵ are :

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Answer:

15 girls, 35 boys

Step-by-step explanation:

Step 1:

3 : 7       Ratio

Step 2:

3x + 7x = 50        Substitute

Step 3:

10x = 50     Add

Step 4:

50 ÷ 10     Divide

Step 5:

x = 5

Answer:

15 girls, and 35 boys     Multiply

Hope This Helps :)

Answer:

-2p/3+3

Step-by-step explanation:

The calculated length of the segment AD is 14

From the question, we have the following parameters that can be used in our computation:

B is the midpoint of AC

BD = 9 and BC = 5

Using the above as a guide, we have the following:

AB = BC = 5

CD = BD - BC

So, we have

CD = 9 - 5

Evaluate

CD = 4

So, we have

AD = AB + BC + CD

substitute the known values in the above equation, so, we have the following representation

AD = 5 + 5 + 4

Evaluate

AD = 14

Hence, the length of the segment AD is 14

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Answer:

Yes, -3 is a solution to the inequality.

Step-by-step explanation:

Plug -3 into the inequality.

3 - 4x ≤ 15

3 - 4(-3) ≤ 15

3 + 12 ≤ 15

15 ≤ 15

The resulting inequality is true, so -3 is a solution.

Answer:

c

Step-by-step explanation:

Answer:

170 cm

Step-by-step explanation:

2 * 1 1/2 * 2 = 6

1 1/2 * 4 * 2 = 12

2 * 4 * 2 = 16

In total: 6 + 12 + 16 = 34.  

Samir needs to cover 5 of these blocks so: 34 x 5 = 170

I also did the quiz.

Answer: 170cm

Step-by-step explanation: I did the test!! From k12

Answer:

Step-by-step explanation:

The formula for a rectangle  is A=B x H  

So the equation is A= 1/3 yards x 2/3 yards  

A 40 gram sample of a substance that’s used for drug research has a k-value of 0.1472. The substance's half-life, in days, is approximately 4.7 days.

The half-life of a substance is the time it takes for half of the substance to decay or undergo a transformation. The half-life can be determined using the formula:

t = (0.693 / k)

where t is the half-life and k is the decay constant.

In this case, we are given that the sample has a k-value of 0.1472. We can use this value to calculate the half-life.

t = (0.693 / 0.1472) ≈ 4.7 days

Therefore, the substance's half-life, rounded to the nearest tenth, is approximately 4.7 days.

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Answer:

i believe number 1 is 18 and number 2 is 9.

Step-by-step explanation:

if one full circle represents 6 CDs then on wednesday 18 Cds were sold because 6+6+6=18 and on thursday they sold 9 more Cds than on wednesday because they sold 6+6+6+6+3 which equals 9.

The vector function that represents the curve of intersection of the cone and the plane is:

r(t) = [t, (t^2 - 9) / 6, √(t^2 + ((t^2 - 9)/6)^2)]

For a vector function that represents the curve of intersection between the cone and the plane, we need to set the equations of the cone and the plane equal to each other and solve for x, y, and z.

The cone equation is given as: z = √(x^2 + y^2)

The plane equation is given as: z = 3 + y

Setting these two equations equal to each other, we have:

√(x^2 + y^2) = 3 + y

To eliminate the square root, we can square both sides of the equation:

x^2 + y^2 = (3 + y)^2

x^2 + y^2 = 9 + 6y + y^2

Simplifying the equation, we have:

x^2 - 6y = 9

Now we can express x and y in terms of a parameter t to create the vector function r(t):

x = t

y = (t^2 - 9) / 6

Substituting these values back into the cone equation to find z:

z = √(x^2 + y^2) = √(t^2 + ((t^2 - 9)/6)^2)

Therefore, the vector function that represents the curve of intersection of the cone and the plane is:

r(t) = [t, (t^2 - 9) / 6, √(t^2 + ((t^2 - 9)/6)^2)]

Note that this is a parametric representation of the curve, where t is the parameter that determines points on the curve.

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Using line tangent, the approximation for f(2.1) is 3.95

Given,

The point (a, f(a)) is on the line tangent to the graph of y = f(x) at x = a, which has a slope of f'(a).

The equation be like;

y - f(a) / (x - a) = f'(a)

y = f'(a) (x - a) + f(a)

Using the provided data and a = 2, we can determine that the tangent line to the graph of y = f(x) at x = 2 has equation

y = f'(2) (x - 2) + f(2)

y = -1/2 (x - 2) + 4

To compute a "approximation of f(2.1) using the line tangent to the graph of f at x = 2," one must substitute x = 2.1 for f in the equation for the tangent line (2.1). You get 2.1 when you plug this in.

y = -1/2 (x - 2) + 4

y = -1/2 (2.1 - 2) + 4

y = -1/2 x 0.1 + 4

y = 3.95

That is,

The approximation for f(2.1) using line tangent is 3.95

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The depth of the land parcel is 290.4 feet.

We have to give that,

The parcel of land you are viewing is 3 acres. the front of the lot is 450 feet wide.

Now, the formula for calculating area:

Area = length × width.

In this case, the area of the land parcel is given as 3 acres.

Since, 1 acre = 43,560 square feet,

Hence, the area can be converted as,

Area = 3 acres × 43,560 square feet/acre

= 130,680 square feet.

Since the front width of the lot is 450 feet.

Let's denote the depth as "d."

Using the formula for area,

Area = length × width

130,680 square feet = d × 450 feet.

Now, we can solve for the depth (d):

d = 130,680 square feet / 450 feet

d ≈ 290.4 feet.

Therefore, the approximate depth of the land parcel is 290.4 feet.

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The equation of the proportional relationship is \(y=\frac{1}{4}x\).

Proportional relationships are relationships between two variables where their ratios are equivalent. A proportional relationship can be represented as follow:

y = kx

where

Therefore, the value of y is 4 when x is 16. Let's find the relationship in the form y = kx

4 = 16k

divide both sides by 16

4 / 16 = 16k / 16

k = 1 / 4

Therefore, the equation is \(y=\frac{1}{4}x\)

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