HELPP ILL GIVE BRAINLIEST,
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Answer:

3.6=30%    3.6+12=15.6       $15.6

Step-by-step explanation:

I hope this helps! Have a fantastic fri-yay! May I have brainliest!

Answer:

There is no question. Please provide a question.

Rounding up to the nearest whole number, we need a sample size of 25 to achieve a 95% confidence level with a maximum error of 2 degrees Celsius in estimating the mean temperature.

To calculate the sample size needed to achieve a 95% confidence level with a maximum error of 2 degrees Celsius, we can use the formula:
n = (z * σ / E) ^ 2
Where:
- n is the sample size
- z is the z-score associated with the confidence level (in this case, 1.96 for 95%)
- σ is the standard deviation of the temperature data (if unknown, we can use a conservative estimate of 5 degrees Celsius).
- E is the maximum error we want to allow (in this case, 2 degrees Celsius)
Plugging in the values, we get:
n = (1.96 * 5 / 2) ^ 2
n = 24.01
Rounding up to the nearest whole number, we need a sample size of 25 to achieve a 95% confidence level with a maximum error of 2 degrees Celsius in estimating the mean temperature.

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Answer:

hold on is good

Step-by-step explanation:

Answer:

$64

Step-by-step explanation:

not sure what you mean be ss songs but for the first part i thnk you just multiply tthe number of songs (40) by thte price per song (1.25) and add the service cost ($14) thus giving you $64.

Answer:

Retirement pay= $19,552.5

Step-by-step explanation:

Giving the following information:

Annual salary= $52,140

Employment years= 25

First, we need to calculate the 1.5% of the annual average salary:

1.5%= 52,140*0.015

1.5%= $782.1

Now, the payment at the moment of retirement:

Retirement pay= 782.1*25

Retirement pay= $19,552.5

Answer:

Yes

Step-by-step explanation:

Factoring is the process of breaking a polynomial into its factors.

Standard Form

It is easiest to factor when in standard form. Standard form is when the terms are listed from highest power to lowest.

Factoring

To find if two expressions are equal we can either factor the quadratic or multiply out the binomials. I find factoring to be faster and easier, so I will show that.

There are multiple techniques to factor; I will be explaining one of them. One way to factor quadratics is to find 2 numbers that multiply to c (the constant) and sum to b (the second term). In this case, the numbers -4 and -2 fit these requirements.

This means that \(x^2-6x+8\) factored is \((x-4)(x-2)\). Thus, they are equivalent.

Answer:

18 quarters

Step-by-step explanation:

4.50/.25=18

Answer:

He has 18 quarters

Step-by-step explanation:

Each dollar is equivalent to 4 quarters, and max has $4. Therefore max has 16 quarters. Then you add the 50 cents, which is equivalent to 2 quarters. Now you add the 16to the 2 and you get 18. Max has 18 quarters.

Answer:

You need 14 panels of fencing to enclose the yards

Step-by-step explanation:

Division

There are two backyards with respective perimeters of 65 ft and 45 ft. It's needed to enclose them with fencing.

The total fencing needed to do the job is 65 ft + 45 ft = 110 ft

Since the fencing comes in panels of 8 ft, we need 110/8 = 13.75 panels of fencing.

But we cannot order a decimal number of panels, we need to round up to the next integer, thus

Answer:

x=0 y=-11 (0,-11)

Step-by-step explanation:

1. take what y equals (3x-11) and plug it in for y in the second equation

Should look like this: O= 6x-2(3x-11)-22

2. Then distribute O=6x-6x+22-22

3. Then combine like terms O= 0 the 22's cancel out as well as the x's

x= 0

4. plug 0 in for x in the first equation y=3(0)-11

5. y= -11

6. x=0 y=-11 (0,-11)

Answer:

This is the answer

x=0 y=-11 (0,-11)

Hope I helped! :)

Step-by-step explanation:

Answer:

2/1 or 2

Step-by-step explanation:

m(slope)= y2-y1/ x2-x1

i hope this helps

Answer:

B) 24/35

Step-by-step explanation:

Cos(X)= Adjacent/Hypotenuse

Cos(X) = 24/25

Therefore, option B is your answer.

Hope this answers your question!!

If the radius of a cone is doubled and the height remains the same, the volume of the original cone will be affected. To understand this effect, we must first understand the formula for calculating the volume of a cone. The formula is V = (1/3)πr^2h, where V is the volume, r is the radius, and h is the height.

When the radius of a cone is doubled, we can see that this change will affect the value of r in the formula. If we substitute 2r for r in the formula, we get V = (1/3)π(2r)^2h. Simplifying this equation gives us V = (4/3)πr^2h. This tells us that the volume of the original cone will be multiplied by a factor of four when the radius is doubled and the height remains the same.

In summary, if the radius of a cone is doubled and the height remains the same, the volume of the original cone will be multiplied by a factor of four. This is because the formula for calculating the volume of a cone involves the radius raised to the second power, which means that doubling the radius will quadruple the volume of the cone.

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We have the surface equation to be 4x² + y² + z² = 10 and the tangent plane equation 2x + 3z = 10. Let us solve for z in terms of x:2x + 3z = 103z = 10 - 2xz = (10 - 2x) / 3We know that a point P(x, y, z) is on the surface and the tangent plane passes through P. Also, the gradient vector of the surface at P is perpendicular to the tangent plane, which means that the vector <8x, 2y, 2z> is perpendicular to the vector <2, 0, 3>.

Therefore, their  product equals zero:8x * 2 + 2y * 0 + 2z * 3 = 016x + 6z = 0 Substitute z with (10 - 2x) / 3:16x + 6(10 - 2x) / 3 = 0Simplify:16x + 20 - 4x = 0Solve for x:12x = - 20x = - 5 / 3Substitute x into z = (10 - 2x) / 3:z = (10 - 2(-5 / 3)) / 3z = 20 / 9The point P is (-5/3, y, 20/9), where y² + 4/9 + 400/81 = 10y² = 310/81 - 4/9 = 232/405y = ± √232 / 27√5P can be any of the two points P₁ = (-5/3, √232/27√5, 20/9) or P₂ = (-5/3, - √232/27√5, 20/9) on the surface 4x² + y² + z² = 10 such that 2x + 3z = 10 is an equation of the tangent plane to the surface at P.

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Answer:

c. 19

Step-by-step explanation:

This model is describing a function. You put in a number for x, in this case, the input of 7 on the side. You solve the equation with that x-value to get a y-value/output.

x=7

y=3x-2

y=3(7)-2

y=21-2

y=19

The total number of 5- digit even palindromes present is 400 numbers.

For the stated question-

For example, 23432, 85658,

The number of 5- digit even palindromes are formed as;

4 * 10 * 10 = 400.

Thus, the total number of 5- digit even palindromes present is 400 numbers.

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Answer:

II and III only

Step-by-step explanation:

Answer:

2(3x + 5) = 6x + 10

⇔ 6x + 10 = 6x + 10

=> infinite solution

Step-by-step explanation:

Richard is 23years old and Thiago is 5years old

A word problem is a mathematical exercise where significant background information on the problem is presented in ordinary language rather than in mathematical notation.

From the question,

Let R stands for Richard

     T stands for Teo

we were told that the combined age of Richard and Teo is 28

i.e

R + T = 28 ......eqn (i)

we were also told that  Richard is 13 years older than twice Teo’s age

i.e

R = 2T + 13 .....eqn(ii)

substituting 2T + 13 for R in eqn (i)

(2T+13)+T = 28

expanding the bracket

3T + 13 = 28

collecting like terms

3T = 28 - 13

3T = 15

T = 15/3

T = 5

Teo age is 5years

From eqn (i)

R + T = 28

R + 5 = 28

R = 28 - 5

R = 23

Hence, Richard age is 23years

From eqn (ii)

R = 2T + 13

substituting for R in the eqn

23=2T+13

collecting like terms

23-13=2T

10=2T

T=10/2

T=5

Hence. Thiago age is 5years

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Option C. Regression models can be used for both linear and non-linear associations, but they are particularly well-suited for linear relationships.

Regression models are useful for modeling the relationship between variables, particularly for predicting the value of one variable based on the value of another.

Linear regression models are used for linear associations, while non-linear regression models are used for non-linear associations. However, even for non-linear associations, linear regression models can be useful for approximating the relationship between variables in certain cases. Nonetheless, in general, non-linear regression models are more appropriate for non-linear associations.

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The value of the shortest of the three sides of the triangle is 13 cm.

A triangle is a polygon with threes sides. The perimeter of a triangle is the sum of the whole three sides.

The lengths of the three sides of a triangle (in centimetres) are consecutive odd integers. The perimeter is 45 cm.

The shortest side of the three sides can be calculated as follows:

let

the first side = x

second side = x + 2

third side = x + 4

Hence,

perimeter = x + x + 2 + x + 4

45 = 3x + 6

45 - 6 = 3x

3x = 39

divide both sides by 3

x = 39 / 3

x = 13

Therefore,

shortest side = 13 cm

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Answer:

y=25+20x

Step-by-step explanation:

Answer:

D

Step-by-step explanation:

I dont think this needs explained

Answer:

The last option, it is greater than the distance from the Movie Theater to the Arcade

Step-by-step explanation:

Distance from food court to store is 6 units

Distance from movie theater to arcade is 5 units

y =\((x/2)^2 + 1 or y = (x/2)^2 + 1\)

The curve represents a parabola opening upwards. It is symmetric about the y-axis.

Let's eliminate the parameter t and sketch the curves for each exercise:

1. x = t^2 + 2t, y = t + 1

To eliminate the parameter t, we can solve the first equation for t and substitute it into the second equation:

t^2 + 2t = x

t = -1 ± √(x + 1)

Substituting the expression for t into the equation y = t + 1, we get:

y = (-1 ± √(x + 1)) + 1

y = -√(x + 1) or y = √(x + 1)

The curve represents two branches of a parabola opening upwards. It is symmetric about the y-axis.

2. x = cos(t), y = sin(t), (0, 2π]

Eliminating the parameter t, we obtain:

\(x^2 + y^2 = cos^2(t) + sin^2(t) \\= 1\)

The curve represents a circle centered at the origin with a radius of 1. It covers a full revolution (360 degrees or 2π) in the counterclockwise direction.

3. x = 2t + 4, y = t - 1

By eliminating the parameter t, we have:

t = (x - 4) / 2

Substituting this expression into the equation for y, we get:

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

y = (x - 6) / 2

The curve represents a line with a slope of 1/2 and a y-intercept of -3. It is inclined upwards from left to right.

4. x = 3 - t, y = 2t - 3, 1.5 ≤ t ≤ 3

Eliminating the parameter t, we have:

t = 3 - x

Substituting this expression into the equation for y, we get:

y = 2(3 - x) - 3

y = 6 - 2x - 3

y = -2x + 3

The curve represents a line with a slope of -2 and a y-intercept of 3. It is inclined downwards from left to right.

\(5. x = 2t^2, y = t^4 + 1\)

To eliminate the parameter t, we can solve the first equation for t and substitute it into the second equation:

t^2 = x/2

t = ±√(x/2)

Substituting the expressions for t into the equation y = t^4 + 1, we get:

y = (√(\(x/2))^4\) + 1 or y = (-√\((x/2))^4\) + 1

\(y = (x/2)^2 + 1 or y = (x/2)^2 + 1\)

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Colton receives a $1421.50 gross salary and a $973.48 net salary. His gross pay is take-home pay is 68.5 percent.

One of the busiest at-grade railroad crossings in the country, Colton Crossing is located in Colton. In order to cross the rails of the Southern Pacific Railroad while expanding northward from San Diego, the California Southern Railroad erected the bridge in 1882. Brown declare their union. The couple got engaged while on a weekend visit to Big Sur, California, according to Underwood, who revealed the news to PEOPLE towards the end of February 2022. Jordan C. Brown and Colton Underwood are now engaged, and I'm overjoyed! Colton Underwood and Cassie Randolph announced their separation in May 2020, little than two years into their relationship. In a conversation with Robin Roberts of Good Morning America a few months later, ABC's former Bachelor came out as gay.

1421.5 * 0.685 = 973.727. is the closest answer.

The others are too low. For instance 1421.5 * 0.46 =653.89.

Which is 46% of the net pay. So the answer is 68.5%

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Answer:

Step-by-step explanation:

6x + 8 -3y + 5 = -2

6x + 13 - 3y = -2

6x - 3y = -2 -13

6x - 3y = -15

answer- 2x - y = -5

Answer:

Step-by-step explanation:

The given identity RSTUV ≅ KLMNO implies that TS ≅ ML, which means that the length of TS is congruent to the length of ML.

Congruency refers to the property of two geometric figures that have the same shape and size. If two figures are congruent, then their corresponding sides and angles are equal.

In the context of polygons, congruent polygons have the same number of sides and their corresponding sides and angles are equal. In this case, since RSTUV and KLMNO are congruent polygons, their corresponding sides are equal in length, and we can use this property to determine that TS is congruent to ML.

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